{"id":7096,"date":"2022-07-29T19:12:40","date_gmt":"2022-07-29T11:12:40","guid":{"rendered":"https:\/\/egonlin.com\/?p=7096"},"modified":"2022-07-29T19:52:02","modified_gmt":"2022-07-29T11:52:02","slug":"%e7%ac%ac%e4%b8%83%e7%ab%a0%ef%bc%9a%e5%ae%b9%e5%99%a8%e6%8a%80%e6%9c%af%e4%b9%8b%e8%bf%9b%e7%a8%8b%e7%ae%a1%e7%90%86%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=7096","title":{"rendered":"\u7b2c\u4e03\u7ae0\uff1a\u5bb9\u5668\u6280\u672f\u4e4b\u8fdb\u7a0b\u7ba1\u7406\u8be6\u89e3"},"content":{"rendered":"<h1>\u4e00 \u5bb9\u5668\u5185\u7684\u4e24\u4e2a\u7279\u6b8a\u8fdb\u7a0b<\/h1>\n<h2>1.1 \u4ecb\u7ecd<\/h2>\n<p>\u5bb9\u5668\u6b63\u5e38\u542f\u52a8\u540e\uff0c\u4f7f\u7528<code>docker exec contaienrID  bash<\/code>\u8fdb\u5165\u5bb9\u5668\u540e\uff0c\u4f7f\u7528<code>ps<\/code>\u547d\u4ee4\uff0c\u4e00\u822c\u6709\u4e24\u4e2a\u7279\u6b8a\u8fdb\u7a0b\uff1a<\/p>\n<ul>\n<li>1\u53f7\u8fdb\u7a0b    \u4e3a\u5bb9\u5668\u9996\u542f\u52a8\u8fdb\u7a0b\uff0c\u5bb9\u5668\u7684pid namespcae\u5c31\u662f\u75311\u53f7\u8fdb\u521b\u5efa\u7684\uff0c\u5bb9\u5185\u5176\u4f59\u8fdb\u7a0b\u57fa\u672c\u90fd\u662f\u9996\u542f\u52a8\u8fdb\u7a0b\u7684\u5b50\u5b59\u8fdb\u7a0b\u3002\u53ea\u89811\u53f7\u8fdb\u7a0b\u6302\u6389\u90a3\u5bb9\u5668\u4fbf\u4f1a\u5173\u95ed\uff0cpid namespace\u4f1a\u88ab\u56de\u6536\u3002<\/li>\n<li>0\u53f7\u8fdb\u7a0b   \u4e3a1\u53f7\u8fdb\u7a0b\u7684\u7236\u8fdb\u7a0b\uff0c\u4e5f\u4e3a<code>docker exec....<\/code>\u643a\u5e26\u6307\u4ee4\u7684\u7236\u8fdb\u7a0b(\u5373\u4ece\u5916\u90e8\u5411running\u5bb9\u5668\u5185\u53d1\u8d77\u7684\u6307\u4ee4)\u3002\u5f53\u7136\u4f60\u8981\u5e72\u6389\u4e860\u53f7\u8fdb\u7a0b\uff0c\u5bb9\u5668\u4e00\u6837\u5b8c\u86cb\uff0c<\/li>\n<\/ul>\n<p>\u4e00\u4e2a\u6848\u4f8b\u5e26\u4f60\u5feb\u901f\u770b\u4e00\u773c0\u53f7\u8fdb\u7a0b\u4e0e1\u53f7\u8fdb\u7a0b<\/p>\n<p>1\u3001tail -f \/dev\/null\u662f\u5bb9\u5668\u5185\u76841\u53f7\u8fdb\u7a0b\uff0c\u800c1\u53f7\u8fdb\u7a0b\u7684\u7236\u8fdb\u7a0b\u5219\u662f0\u53f7\u8fdb\u7a0b<\/p>\n<p>2\u3001docker exec\u6267\u884c\u7684\u547d\u4ee4\u662fsh\uff0c\u8be5\u547d\u4ee4\u662f\u5728\u5bb9\u5668\u5df2\u7ecfrunning\u4e4b\u540e\u8fd0\u884c\u7684\uff0c\u4ea7\u751f\u7684sh\u8fdb\u7a0b\u7684\u7236\u8fdb\u7a0b\u4e3a0\u53f7\u8fdb\u7a0b<\/p>\n<p>3\u3001\u5728sh\u73af\u5883\u91cc\u6267\u884c\u7684\u65b0\u547d\u4ee4\u5982\u4e0b\u6240\u793asleep 1000 &amp;\uff0c\u5f53\u7136\u90fd\u662fsh\u7684\u513f\u5b50<\/p>\n<pre><code class=\"language-bash\">[root@test01 init5]# docker container run -d --name test centos:7 tail -f \/dev\/null\n[root@test01 init5]# \n[root@test01 init5]# docker exec -ti test sh\nsh-4.2# ps -ef \nUID       PID PPID  C STIME TTY          TIME CMD\nroot        1    0  0 04:27 ?        00:00:00 tail -f \/dev\/null\nroot        6    0  0 04:27 pts\/0    00:00:00 sh\nroot       13    6  0 04:27 pts\/0    00:00:00 ps -ef\nsh-4.2# \nsh-4.2# sleep 1000 &amp;\n[1] 14\nsh-4.2# ps -ef\nUID       PID PPID  C STIME TTY          TIME CMD\nroot        1    0  0 04:27 ?        00:00:00 tail -f \/dev\/null\nroot        6    0  0 04:27 pts\/0    00:00:00 sh\nroot       14    6  0 04:27 pts\/0    00:00:00 sleep 1000\nroot       15    6  0 04:28 pts\/0    00:00:00 ps -ef\nsh-4.2# <\/code><\/pre>\n<h2>1.2 \u5bb9\u5668\u5185\u76840\u53f7\u8fdb\u7a0b<\/h2>\n<p>=====&gt;\u5bf9\u4e8elinux\u7cfb\u7edf\u6765\u8bf4\uff1a<\/p>\n<p>linux\u542f\u52a8\u7684\u7b2c\u4e00\u4e2a\u8fdb\u7a0b\u662f0\u53f7\u8fdb\u7a0b\uff0c\u662f\u9759\u6001\u521b\u5efa\u7684<\/p>\n<p>\u57280\u53f7\u8fdb\u7a0b\u542f\u52a8\u540e\u4f1a\u63a5\u8fde\u521b\u5efa\u4e24\u4e2a\u8fdb\u7a0b\uff0c\u5206\u522b\u662f1\u53f7\u8fdb\u7a0b\u548c2\u548c\u8fdb\u7a0b\u3002<\/p>\n<p>1\u53f7\u8fdb\u7a0b\u6700\u7ec8\u4f1a\u53bb\u8c03\u7528\u53efinit\u53ef\u6267\u884c\u6587\u4ef6\uff0cinit\u8fdb\u7a0b\u6700\u7ec8\u4f1a\u53bb\u521b\u5efa\u6240\u6709\u7684\u5e94\u7528\u8fdb\u7a0b\u3002<\/p>\n<p>2\u53f7\u8fdb\u7a0b\u4f1a\u5728\u5185\u6838\u4e2d\u8d1f\u8d23\u521b\u5efa\u6240\u6709\u7684\u5185\u6838\u7ebf\u7a0b<\/p>\n<p>\u6240\u4ee5\u8bf40\u53f7\u8fdb\u7a0b\u662f1\u53f7\u548c2\u53f7\u8fdb\u7a0b\u7684\u7236\u8fdb\u7a0b\uff1b1\u53f7\u8fdb\u7a0b\u662f\u6240\u6709\u7528\u6237\u6001\u8fdb\u7a0b\u7684\u7236\u8fdb\u7a0b\uff1b2\u53f7\u8fdb\u7a0b\u662f\u6240\u6709\u5185\u6838\u7ebf\u7a0b\u7684\u7236\u8fdb\u7a0b\u3002<\/p>\n<p>===========&gt;\u5bf9\u4e8e\u5bb9\u5668\u6765\u8bf4\uff1a<\/p>\n<p>\u5728\u5bb9\u5668\u5e73\u53f0\u4e0a\uff0c\u65e0\u8bba\u4f60\u662f\u7528k8s\u53bb\u5220\u9664\u4e00\u4e2apod\uff0c\u6216\u8005\u7528docker\u5173\u95ed\u4e00\u4e2a\u5bb9\u5668\uff0c\u90fd\u4f1a\u7528\u5230Containerd\u8fd9\u4e2a\u670d\u52a1\uff0c<\/p>\n<ul>\n<li>\n<p>\u5728k8s\u91cc\uff0c\u521b\u5efapod\u4f1a\u65f6\uff0ckubelet\u6536\u5230\u521b\u5efapod\u7684\u8bf7\u6c42\u540e\uff0c\u4f1a\u8c03\u7528<code>dockerDaemon<\/code>\u53d1\u8d77\u521b\u5efa\u5bb9\u5668\u8bf7\u6c42\uff0c\u7136\u540e\u7531<code>containerd<\/code>\u63a5\u6536\u5e76\u8c03\u7528 containerd\/runc\u529f\u80fd\u6765\u521b\u5efa<code>containerd-shim<\/code>\u8fdb\u7a0b\uff0c<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u53ea\u662f\u7528docker\u521b\u5efa\u5bb9\u5668\uff0c\u90a3\u5c31\u662f\u76f4\u63a5\u8c03\u7528dockerDaemon\u53d1\u8d77\u521b\u5efa\u5bb9\u5668\u8bf7\u6c42\uff0c\u7136\u540e\u7531<code>containerd<\/code>\u63a5\u6536\u5e76\u8c03\u7528 containerd\/runc\u529f\u80fd\u6765\u521b\u5efa<code>containerd-shim<\/code>\u8fdb\u7a0b<\/p>\n<\/li>\n<\/ul>\n<p><code>containerd-shim<\/code>\u5c31\u662f\u4e0a\u9762\u63d0\u5230\u76840\u53f7\u8fdb\u7a0b\uff0c\u5173\u4e8e<code>containerd-shim<\/code>\u9700\u8981\u638c\u63e13\u4e2a\u5173\u952e\u77e5\u8bc6\u70b9<\/p>\n<ul>\n<li>\n<p>1\u3001\u5b9e\u9645\u7684\u521b\u5efa\u5bb9\u5668\u3001\u5bb9\u5668\u5185\u6267\u884c\u6307\u4ee4\u7b49\u90fd\u5176\u5b9e\u90fd\u662f\u7531<code>containerd-shim<\/code>\u8fdb\u7a0b\u5728\u505a\u3002<\/p>\n<\/li>\n<li>\n<p>2\u3001<code>containerd-shim<\/code>\u8fdb\u7a0b\u662f\u5bb9\u5668\u7684\u7239\uff0c\u5177\u5907\u56de\u6536\u50f5\u5c38\u513f\u5b50\u7684\u529f\u80fd\uff0c\u5bb9\u56681\u53f7\u8fdb\u7a0b\u9000\u51fa\u540e\uff0c\u5185\u6838\u6e05\u7406\u5176\u4e0b\u5b50\u5b59\u8fdb\u7a0b\uff0c\u8fd9\u4e9b\u5b50\u5b59\u8fdb\u7a0b\u5c31\u4f1a\u88ab<code>containerd-shim<\/code>\u6536\u517b\u5e76\u6e05\u7406\u3002\u4f46\u5982\u679c\u5bb9\u5668\u5185\u76841\u53f7\u8fdb\u7a0b\u4e0d\u88abKill\uff0c\u90a3\u4e48\u5176\u4e0b\u8fdb\u7a0b\u5982\u679c\u6709\u50f5\u5c38\u8fdb\u7a0b\uff0c\u662f\u65e0\u6cd5\u88ab\u5904\u7406\u7684\u3002\u6240\u4ee5\u7528\u6237\u5f00\u53d1\u7684\u5bb9\u5668\u9996\u8fdb\u7a0b\u8981\u6ce8\u610f\u56de\u6536\u9000\u51fa\u8fdb\u7a0b<\/p>\n<\/li>\n<li>\n<p>3\u3001Containerd\u5728stop\u505c\u6b62\u5bb9\u5668\u7684\u65f6\u5019\uff0c\u4f1a\u5411\u5bb9\u5668\u76841\u53f7\u8fdb\u7a0b\u53d1\u9001\u4e00\u4e2a-15\u4fe1\u53f7\uff0c\u5982\u679c\u5bb9\u5668\u5185\u76841\u53f7\u8fdb\u7a0b\u6ca1\u6709\u4fe1\u53f7\u8f6c\u53d1\u80fd\u529b\uff0c\u90a3\u5728\u56de\u6536pid namespce\u65f6\u4f1a\u5411\u8be5namespace\u91cc\u7684\u6240\u6709\u5176\u4ed6\u8fdb\u7a0b\u53d1\u9001SIGKILL\u4fe1\u53f7\u4fe1\u53f7\u5f3a\u5236\u6740\u6b7b\u3002\u8fd9\u662f\u6709\u95ee\u9898\u7684\uff0c\u540e\u7eed\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd<\/p>\n<\/li>\n<\/ul>\n<p>\u542f\u52a8\u4e00\u4e2a\u5bb9\u5668<\/p>\n<pre><code class=\"language-bash\">docker run -d --name test1 centos:7 sh -c &quot;(sleep 10d &amp;) ; tail -f \/dev\/null&quot;<\/code><\/pre>\n<p>\u5982\u4f55\u67e5\u770b\u5bb9\u5668\u51850\u53f7\u8fdb\u7a0b\u5bf9\u5e94\u5bbf\u4e3b\u673a\u7684pid\u53f7<\/p>\n<pre><code class=\"language-bash\">[root@node1 ~]# docker container ls |grep test1 | awk &#039;{print $1}&#039;\n09e4114ddd9d\n\n# \u6ce8\u610f,\u4e0b\u9762\u67e5\u770b\u7684\u662f\u5bb9\u5668\u5185\u90e80\u53f7\u8fdb\u7a0b\uff0c\u5bf9\u5e94\u5bbf\u4e3b\u673a\u4e0a\u7684pid\u53f7\n[root@node1 ~]# ps aux |grep containerd-shim |grep 09e4114ddd9d\nroot       5439  0.0  0.6 712056 12836 ?        Sl   12:27   0:00 \/usr\/bin\/containerd-shim-runc-v2 -namespace moby -id 09e4114ddd9d9747244352637949ade8c61082627984b3381d37a589d92c4bc3 -address \/run\/containerd\/containerd.sock\n\n\u5982\u679c\u4f60\u5e72\u6b7b\u4e86\u5bb9\u5668\u7684containerd-shim\u8fdb\u7a0b\uff0c\u90a3\u7ad9\u5728\u64cd\u4f5c\u7cfb\u7edf\u89d2\u5ea6\uff0c\u5bb9\u5668\u4e0b\u7684\u6240\u6709\u8fdb\u7a0b\u90fd\u88ab\u64cd\u4f5c\u7cfb\u7edf\u7684init\u6536\u517b\u7136\u540e\u56de\u6536\u4e86<\/code><\/pre>\n<p>\u5982\u4f55\u67e5\u770b\u5bb9\u5668\u51851\u53f7\u8fdb\u7a0b\u5bf9\u5e94\u7269\u7406\u673a\u7684pid\u53f7\uff0c\u6211\u4eec\u540e\u7eed\u4f1a\u5728\u7269\u7406\u673a\u7528strace\u547d\u4ee4\u8ffd\u8e2a\u5bb9\u5668\u51851\u53f7\u8fdb\u7a0b\u6536\u5230\u7684\u4fe1\u53f7\uff0c\u9700\u8981\u63d0\u524d\u77e5\u6653\u4e0b\u8ff0\u65b9\u5f0f<\/p>\n<pre><code class=\"language-bash\">[root@node1 ~]# docker container ls |grep test1 | awk &#039;{print $1}&#039;\n09e4114ddd9d\n[root@node1 ~]# docker inspect 09e4114ddd9d |grep -i pid\n            &quot;Pid&quot;: 5458,\n            &quot;PidMode&quot;: &quot;&quot;,\n            &quot;PidsLimit&quot;: null,<\/code><\/pre>\n<p>\u5982\u4f55\u67e5\u770b\u5bb9\u5668\u5185\u5176\u4ed6\u8fdb\u7a0b\u5728\u5bbf\u4e3b\u673a\u4e2d\u7684PID<\/p>\n<pre><code class=\"language-bash\">[root@node1 ~]# docker container ls |grep test1 | awk &#039;{print $1}&#039;\n09e4114ddd9d\n\n# \u6ce8\u610f\uff0c\u4e0b\u9762\u67e5\u770b\u7684\u662f\u5bb9\u5668\u5185\u90e8\u7684\u8fdb\u7a0b\u5bf9\u5e94\u5bbf\u4e3b\u673a\u5bf9\u5e94\u7684pid\u53f7\uff0c\u5177\u4f53\u67e5\u770b\u76ee\u5f55\u53ef\u80fd\u662fsystem.slice\u6216docker\u76ee\u5f55\n[root@node1 ~]# cat \/sys\/fs\/cgroup\/memory\/system.slice\/docker-09e4114ddd9d9747244352637949ade8c61082627984b3381d37a589d92c4bc3.scope\/cgroup.procs \n5458\n5484\n5485\n\n# \u4e0a\u8ff0\u7ed3\u679c\u5305\u542b\u4e86\u5bb9\u5668\u51851\u53f7\u8fdb\u7a0b\u5728\u5bbf\u4e3b\u673a\u7684\u6620\u5c04\uff0c\u8981\u786e\u5b9a\u5176\u4ed6\u8fdb\u7a0b\u53f7\u4e0e\u5bb9\u5668\u5185\u8fdb\u7a0b\u7684\u5bf9\u5e94\u5173\u7cfb\uff0c\u53ef\u4ee5\u5728\u5bbf\u4e3b\u673a\u4e0a\u7528ps aux |grep \u53f7\u7801\uff0c\u6765\u8fc7\u6ee4\u8fdb\u884c\u786e\u8ba4\n=============\u300b\u5bbf\u4e3b\u673a\n[root@node1 ~]# ps aux |grep 5458 |grep -v grep\nroot       5458  0.0  0.0  11688  1336 ?        Ss   12:27   0:00 sh -c (sleep 10d &amp;) ; tail -f \/dev\/null\n[root@node1 ~]# ps aux |grep 5484 |grep -v grep\nroot       5484  0.0  0.0   4364   356 ?        S    12:27   0:00 sleep 10d\n[root@node1 ~]# ps aux |grep 5485 |grep -v grep\nroot       5485  0.0  0.0   4400   352 ?        S    12:27   0:00 tail -f \/dev\/null\n\n=============\u300b\u5728\u5bb9\u5668\u5185\uff0c\u770b\u4e00\u773c\u4e0e\u4e0a\u9762\u7684\u5bf9\u5e94\u5173\u7cfb\n\u53ef\u4ee5\u6267\u884cdocker exec -ti test1 sh\u8fdb\u5165\u5bb9\u5668\u5185\u6267\u884cps -ef\u6765\u67e5\u770b\u4e0e\u4e0a\u9762\u7684\u7684\u7ed3\u679c\u662f\u4e00\u4e00\u5bf9\u5e94\u7684\n\u8865\u5145\uff1a\n\u7531\u4e8e\u5bb9\u5668\u91c7\u7528\u4e86Linux\u7684namespace\u673a\u5236, \u5bf9pid\u8fdb\u884c\u4e86\u9694\u79bb. \u56e0\u6b64\u5bb9\u5668\u5185\u7684pid\u5c06\u4f1a\u4ece1\u5f00\u59cb\u91cd\u65b0\u7f16\u53f7, \u5e76\u4e14\u4e0d\u4f1a\u770b\u5230\u5176\u4ed6\u5bb9\u5668\u6216\u5bbf\u4e3b\u673a\u7684\u8fdb\u7a0bpid\u3002\u672c\u8d28\u4e0a\u5bb9\u5668\u5c31\u662f\u5bbf\u4e3b\u673a\u4e0a\u7684\u4e00\u4e2a\u666e\u901a\u7684Linux\u8fdb\u7a0b, \u56e0\u6b64\u5728\u5bbf\u4e3b\u673a\u4e2d\u662f\u53ef\u4ee5\u770b\u5230\u5bb9\u5668\u5185\u8fdb\u7a0b\u7684pid, \u53ea\u4e0d\u8fc7\u8fd9\u4e2apid\u662f\u5728\u5bbf\u4e3b\u673a\u4e0a\u663e\u793a\u7684, \u800c\u975e\u5bb9\u5668\u5185\u7684(\u56e0\u4e3a\u9694\u79bb\u4e86)\n\n[root@node1 ~]# docker exec -ti test1 sh\nsh-4.2# ps -elf\nF S UID         PID   PPID  C PRI  NI ADDR SZ WCHAN  STIME TTY          TIME CMD\n4 S root          1      0  0  80   0 -  2922 do_wai 04:27 ?        00:00:00 sh -c (sleep 10d &amp;) ; tail -f \/dev\/null\n0 S root          8      1  0  80   0 -  1091 hrtime 04:27 ?        00:00:00 sleep 10d\n0 S root          9      1  0  80   0 -  1100 wait_w 04:27 ?        00:00:00 tail -f \/dev\/null\n4 S root         10      0  0  80   0 -  2956 do_wai 04:35 pts\/0    00:00:00 sh\n4 R root         16     10  0  80   0 - 12933 -      04:35 pts\/0    00:00:00 ps -elf\n<\/code><\/pre>\n<p>\u5c0f\u7ed3\uff1a<\/p>\n<ol>\n<li>\n<p>\u6bcf\u542f\u52a8\u4e00\u4e2a\u5bb9\u5668\u90fd\u4f1a\u5728\u5bbf\u4e3b\u673a\u4ea7\u751f\u4e00\u4e2adocker-shim\u8fdb\u7a0b\uff0c\u5b83\u5c31\u662f\u5bb9\u5668\u5185\u76840\u53f7\u8fdb\u7a0b\uff0c\u662f\u5bb9\u5668\u51851\u53f7\u8fdb\u7a0b\u7684\u7239<\/p>\n<\/li>\n<li>\n<p>\u5f53\u5bb9\u5668\u5df2\u7ecfrunning\u4e4b\u540e\uff0c\u6211\u4eecexec\u8fdb\u5165\u5bb9\u5668\u91cc\u6267\u884c\u547d\u4ee4\u4ea7\u751f\u7684\u65b0\u8fdb\u7a0b\uff0c\u90fd\u662f0\u53f7\u8fdb\u7a0b\u7684\u513f\u5b50\uff0c\u800c\u4e0d\u662f1\u53f7\u8fdb\u7a0b\u7684\u513f\u5b50\u3002\u6240\u4ee5\u8bf4\u5bb9\u5668\u4e2d\u76841\u53f7\u8fdb\u7a0b\u5e76\u4e0d\u4f1a\u50cf\u5bbf\u4e3b\u673a\u76841\u53f7\u8fdb\u7a0b\u90a3\u6837\u76f4\u63a5\u6216\u95f4\u63a5\u5730\u9886\u5bfc\u6240\u6709\u5176\u5b83\u8fdb\u7a0b\uff1b<\/p>\n<\/li>\n<li>\n<p>docker top  \u663e\u793a\u7684\u5bb9\u5668\u4e2d\u7684\u8fdb\u7a0b\u53ef\u80fd\u4e0d\u592a\u5168\uff0c\u4e0e\u662f\u5426\u8be5\u8fdb\u7a0b\u5f52\u5c5e\u4e8e1\u53f7\u8fdb\u7a0b\u6ca1\u6709\u4efb\u4f55\u5173\u7cfb\uff1b\u4e0e\u8fdb\u7a0b\u662f\u5426\u6700\u7ec8\u5f52\u5c5e\u4e8e\u8be5\u5bb9\u5668\u7684\u7ba1\u7406\u8fdb\u7a0bdocker-containerd-shim\u4e5f\u6ca1\u6709\u5173\u7cfb\uff0c\u5982\u679c\u662fnsenter\u8fdb\u5165\u5bb9\u5668\uff0c\u5219\u542f\u52a8\u7684\u8fdb\u7a0b\u5728docker  top\u4e2d\u662f\u770b\u4e0d\u5230\u7684\uff0c\u867d\u7136\u8be5\u8fdb\u7a0b\u5728\u5bb9\u5668\u4e2d\u663e\u793a\u7684ppid\u4e5f\u662f0\uff0c\u5176\u5b9e\u540c\u6837\u662f0\u7684ppid\u5374\u53ef\u80fd\u4e0d\u662f\u540c\u4e00\u4e2a\u8fdb\u7a0b\uff0c\u56e0\u4e3a\uff0c\u53ea\u8981\u7236\u8fdb\u7a0b\u5728\u5bb9\u5668\u5916\u90e8\uff0c\u5219\u5bb9\u5668\u5185\u90e8\u663e\u793a\u7684ppid\u5c31\u7edf\u4e00\u4e3a0\uff1b \u4e3a\u4ec0\u4e48docker top\u53ef\u80fd\u770b\u5230\u7684\u4e0d\u5168\uff1fdocker top\u662f\u5982\u4f55\u5b9e\u73b0\u7684\u5462\uff1f\u53c2\u770b\uff1a <a href=\"https:\/\/phpor.net\/blog\/post\/4420\">https:\/\/phpor.net\/blog\/post\/4420<\/a><\/p>\n<\/li>\n<\/ol>\n<h2>1.3 \u5bb9\u5668\u5185\u76841\u53f7\u8fdb\u7a0b<\/h2>\n<h3>1.3.1 \u5b8c\u6574\u64cd\u4f5c\u7cfb\u7edf\u76841\u53f7\u8fdb\u7a0b<\/h3>\n<p>\u5148\u4e0d\u63d0\u5bb9\u5668\uff0c\u5c31\u4ee5\u7269\u7406\u673a\u4e0a\u8fd0\u884c\u7684\u90a3\u4e2a\u5b8c\u6574\u7684\u64cd\u4f5c\u7cfb\u7edf\u4e3a\u4f8b\uff1a<\/p>\n<p>\u4e00\u4e2a Linux \u64cd\u4f5c\u7cfb\u7edf\u7684\u542f\u52a8\u6d41\u7a0b<\/p>\n<p>1\u3001\u901a\u7535\u540e\uff0c\u6267\u884c BIOS<\/p>\n<p>2\u3001\u627e\u5230\u542f\u52a8\u76d8<\/p>\n<p>3\u3001bios\u6839\u636e\u81ea\u5df1\u7684\u914d\u7f6e\uff0c\u627e\u5230\u542f\u52a8\u76d8\uff0c\u8bfb\u53d6\u7b2c\u4e00\u4e2a\u6247\u533a512bytes\uff0c\u5373mbr\u7684\u5185\u5bb9\uff0c\u8fd9\u91cc\u653e\u7684\u524d446\u662fboot-loader\u7a0b\u5e8f\uff0c\u540e64\u662f\u5206\u533a\u4fe1\u606f\uff0c\u540e2\u5b57\u8282\u662f\u7ed3\u675f\u7684\u6807\u5fd7\u4f4d<\/p>\n<p>4\u3001 bootloader \u8d1f\u8d23\u628a\u78c1\u76d8\u91cc\u7684\u5185\u6838\u8bfb\u5165\u5185\u5b58\u6267\u884c<\/p>\n<p>Linux \u5185\u6838\u6267\u884c\u6587\u4ef6\u4e00\u822c\u4f1a\u653e\u5728 \/boot \u76ee\u5f55\u4e0b\uff0c\u6587\u4ef6\u540d\u7c7b\u4f3c vmlinuz*\uff0c\u5982\u4e0b<\/p>\n<pre><code class=\"language-bash\">[root@yq01-aip-aikefu19 base]# ls \/boot\/|grep vm\nvmlinuz-0-rescue-53574fee080a44d49195c9f831019258\nvmlinuz-3.10.0-514.el7.x86_64\nvmlinuz-4.17.11-1.el7.elrepo.x86_64<\/code><\/pre>\n<p>5\u3001\u5728\u5185\u6838\u5b8c\u6210\u4e86\u7cfb\u7edf\u7684\u5404\u79cd\u521d\u59cb\u5316\u4e4b\u540e\uff0c<strong>\u8fd9\u4e2a\u7a0b\u5e8f\u9700\u8981\u6267\u884c\u7684\u7b2c\u4e00\u4e2a\u7528\u6237\u6001\u7a0b\u5c31\u662f init \u8fdb\u7a0b\uff0cPID\u53f7\u4e3a1\uff0c\u8be5\u8fdb\u7a0b\u662f\u7cfb\u7edf\u4e2d\u6240\u6709\u5176\u4ed6\u8fdb\u7a0b\u7684\u7956\u5b97\uff0c<\/strong>\u5728centos6\u4e2d\u8be5\u7956\u5b97\u8fdb\u7a0b\u79f0\u4e4b\u4e3ainit\uff0c\u5728centos7\u4e4b\u540e\u8be5\u7956\u5b97\u8fdb\u7a0b\u540d\u4e3asystemd\u3002<\/p>\n<p>\u5373\uff1a\u64cd\u4f5c\u7cfb\u7edf\u542f\u52a8\u65f6\u662f\u5148\u6267\u884c\u5185\u6838\u6001\u4ee3\u7801\uff0c\u7136\u540e\u5728\u5185\u6838\u91cc\u8c03\u75281\u53f7\u8fdb\u7a0b\u7684\u4ee3\u7801\uff0c\u4ece\u5185\u6838\u6001\u5207\u6362\u5230\u7528\u6237\u6001<\/p>\n<pre><code class=\"language-bash\">ps\uff1a\u76ee\u524dlinux\u7684\u597d\u55ef\u591a\u53d1\u884c\u7248\uff0c\u5982\u7ea2\u5e3d\u3001debian\u7b49\uff0c\u90fd\u4f1a\u628a\/sbin\/init\u4f5c\u4e3a\u8f6f\u8fde\u63a5\u6307\u5411Systemd\uff0cSystemd\u662f\u76ee\u524d\u6700\u6d41\u884c\n\n\u7684linux init\u8fdb\u7a0b\uff0c\u5728\u6b64\u4e4b\u524d\u8fd8\u6709SysVinit\u3001UpStart\u7b49linux init\u8fdb\u7a0b\n\n\u4f46\u65e0\u8bba\u662f\u54ea\u79cd Linux init \u8fdb\u7a0b\uff0c\u5b83\u6700\u57fa\u672c\u7684\u529f\u80fd\u90fd\u662f\u521b\u5efa\u51fa Linux \u7cfb\u7edf\u4e2d\u5176\u4ed6\u6240\u6709\u7684\u8fdb \u7a0b\uff0c\u5e76\u4e14\u7ba1\u7406\u8fd9\u4e9b\u8fdb\u7a0b**\n\n\u5728 Linux \u4e0a\u6709\u4e86\u5bb9\u5668\u7684\u6982\u5ff5\u4e4b\u540e\uff0c\u4e00\u65e6\u5bb9\u5668\u5efa\u7acb\u4e86\u81ea\u5df1\u7684 Pid Namespace(\u8fdb\u7a0b\u547d\u540d\u7a7a \u95f4)\uff0c\u8fd9\u4e2a Namespace \u91cc\u7684\u8fdb\u7a0b\u53f7\u4e5f\u662f\u4ece 1 \u5f00\u59cb\u6807\u8bb0\u7684\u3002\u6240\u4ee5\uff0c\u5bb9\u5668\u7684 init \u8fdb\u7a0b\u4e5f\u88ab\u79f0 \u4e3a 1 \u53f7\u8fdb\u7a0b\u3002\n\n1 \u53f7\u8fdb\u7a0b\u662f\u7b2c\u4e00\u4e2a \u7528\u6237\u6001\u7684\u8fdb\u7a0b\uff0c\u7531\u5b83\u76f4\u63a5\u6216\u8005\u95f4\u63a5\u521b\u5efa\u4e86 Namespace \u4e2d\u7684\u5176\u4ed6\u8fdb\u7a0b\u3002<\/code><\/pre>\n<p>\u603b\u7ed3\u64cd\u4f5c\u7cfb\u7edf\u76841\u53f7\u8fdb\u7a0b\u62e5\u6709\u5982\u4e0b\u7279\u70b9<\/p>\n<ul>\n<li>1\u3001\u5b83\u662f\u7cfb\u7edf\u7684\u7b2c\u4e00\u4e2a\u8fdb\u7a0b\uff0c\u8d1f\u8d23\u4ea7\u751f\u5176\u4ed6\u6240\u6709\u7528\u6237\u8fdb\u7a0b\u3002<\/li>\n<li>2\u3001init \u4ee5\u5b88\u62a4\u8fdb\u7a0b\u65b9\u5f0f\u5b58\u5728\uff0c\u662f\u6240\u6709\u5176\u4ed6\u8fdb\u7a0b\u7684\u7956\u5148\u3002<\/li>\n<\/ul>\n<p>\u64cd\u4f5c\u7cfb\u7edf\u76841\u53f7\u8fdb\u7a0b\u62e5\u6709\u5982\u4e0b\u91cd\u8981\u529f\u80fd<\/p>\n<ul>\n<li>\n<p>1\u3001\u542f\u52a8\u5b88\u62a4\u8fdb\u7a0b<\/p>\n<\/li>\n<li>\n<p>2\u3001\u6536\u517b\u5b64\u513f<\/p>\n<\/li>\n<li>\n<p>3\u3001\u4f1a\u5b9a\u671f\u53d1\u8d77wait\u6216waitpid\u7684\u529f\u80fd\u53bb\u56de\u6536\u6210\u4e3a\u50f5\u5c38\u7684\u513f\u5b50\uff08\u8fd9\u4e0d\u662f\u8be5\u8fdb\u7a0b\u72ec\u6709\u7684\u529f\u80fd\uff0c\u4f46\u5b83\u7684\u786e\u6709\u8be5\u529f\u80fd\uff09<\/p>\n<\/li>\n<li>\n<p>4\u3001\u5c06\u64cd\u4f5c\u7cfb\u7edf\u4fe1\u53f7\u8f6c\u53d1\u7ed9\u5b50\u8fdb\u7a0b<\/p>\n<\/li>\n<\/ul>\n<h3>1.3.2 \u5bb9\u5668\u5185\u76841\u53f7\u8fdb\u7a0b<\/h3>\n<p>\u7136\u540e\u6211\u4eec\u518d\u6765\u8bf4\u4e00\u4e0b\u5bb9\u5668\uff0c\u5bb9\u5668\u5185\u7684\u64cd\u4f5c\u7cfb\u7edf\u6765\u81ea\u4e8e\u955c\u50cf\uff0c\u800c\u955c\u50cf\u5e76\u975e\u4e00\u4e2a\u5b8c\u6574\u7684\u64cd\u4f5c\u7cfb\u7edf\uff08\u53ea\u62e5\u6709rootfs\uff09\uff0c\u901a\u5e38docker\u7684\u955c\u50cf\u4e3a\u4e86\u8282\u7701\u7a7a\u95f4\uff0c\u662f\u6ca1\u6709\u5b89\u88c5systemd\u6216\u8005sysvint\u8fd9\u7c7b\u521d\u59cb\u5316\u7cfb\u7edf\u7684\u8fdb\u7a0b\u7684\uff0c\u6240\u4ee5\u5f53\u542f\u52a8\u5bb9\u5668\u65f6\uff0c\u6211\u4eecCMD\u6267\u884c\u7684\u547d\u4ee4\u662f\u5565\uff0c\u5bb9\u5668\u91cc\u76841\u53f7\u8fdb\u7a0b\u5c31\u662f\u5565\uff0c<\/p>\n<pre><code class=\"language-bash\"># \u4ee5\u4e0bdockerfile\u4e3a\u4f8b\uff0c\u5f53docker\u5bb9\u5668\u542f\u52a8\u65f6\uff0cPID 1\u5373\u5bb9\u5668\u542f\u52a8\u7a0b\u5e8f\u5c06\u4f1a\u662fnginx\uff0c\nFROM nginx\n\nENTRYPOINT [&quot;nginx&quot;, &quot;-c&quot;]\nCMD [&quot;\/etc\/nginx\/nginx.conf&quot;]<\/code><\/pre>\n<p><strong>\u5bb9\u5668\u5185\u76841\u53f7\u8fdb\u7a0b\u4e0e\u64cd\u4f5c\u7cfb\u7edf\u76841\u53f7\u8fdb\u7a0b\u7684\u76f8\u540c\u70b9\u4e0e\u4e0d\u540c\u70b9\u5982\u4e0b<\/strong><\/p>\n<ul>\n<li>\n<p>1\u3001\u76f8\u540c\u4e4b\u5904<\/p>\n<p>\u53ea\u8981\u5bb9\u5668\u91cc\u76841\u53f7\u8fdb\u7a0b\u505c\u6b62\uff0c\u5bb9\u5668\u5c31\u4f1a\u7ed3\u675f\uff0c\u5c31\u597d\u6bd4\u662f\u64cd\u4f5c\u7cfb\u7edf\u76841\u53f7\u8fdb\u7a0b\u6302\u6389\u64cd\u4f5c\u7cfb\u7edf\u5c31\u6302\u6389\u4e86\u662f\u4e00\u4e2a\u9053\u7406\u3002\u6240\u4ee5\u5bb9\u5668\u91cc\u76841\u53f7\u8fdb\u7a0b\u5e94\u8be5\u662f\u4e00\u4e2a\u4e00\u76f4\u8fd0\u884c\u4e0d\u4f1a\u505c\u6b62\u7684\u8fdb\u7a0b\uff0c\u800c\u4e14\u5fc5\u987b\u5728\u5728\u524d\u53f0\u8fd0\u884c\uff0c\u603b\u7ed3\u4e00\u4e0b\u5c31\u662f\uff1a1\u53f7\u8fdb\u7a0b\u9700\u8981\u5728\u524d\u53f0\u4e00\u76f4\u8fd0\u884c\u3002<\/p>\n<p>\u793a\u4f8b1<\/p>\n<pre><code class=\"language-bash\"># \u9519\u8bef\u793a\u83031\uff1a\u5bb9\u5668\u76841\u53f7\u8fdb\u7a0b\u4e0d\u662f\u4e00\u76f4\u8fd0\u884c\u7684\n# 1.1 run.sh\u5185\u5bb9\necho \"123\"\n\n# 1.2 dockerfile\u5185\u5bb9\nFROM centos:7\n\nADD run.sh \/opt\nCMD sh \/opt\/run.sh\n\n# 1.3 \u6784\u5efa\u955c\u50cf\ndocker build -t test:v1 .\/\n\n# 1.4 \u542f\u52a8\u6d4b\u8bd5\ndocker container run -d --name test111 test:v1\n\n# 1.5 \u4f1a\u53d1\u73b0\u5bb9\u5668\u542f\u52a8\u4e4b\u540e\u7acb\u523b\u6302\u6389\n[root@test01 test]# docker container ls -a |grep test111\n......  Exited (0) 33 seconds ago  ......<\/code><\/pre>\n<p>\u793a\u4f8b2<\/p>\n<pre><code class=\"language-bash\"># \u9519\u8bef\u793a\u83032\uff1a\u5bb9\u5668\u76841\u53f7\u8fdb\u7a0b\u653e\u5728\u4e86\u540e\u53f0\u8fd0\u884c\uff0c\u90a3\u4e48\u65e0\u8bba\u5b83\u91cc\u9762\u662f\u5565\u4ee3\u7801\uff0c\u4e5f\u90fd\u662f\u4e00\u4e0b\u5c31\u8fd0\u884c\u8fc7\u53bb\u4e86\uff0c\u7136\u540e\u8fd0\u884c\u4e0b\u4e00\u884c\u4ee3\u7801\uff0c\u53d1\u73b0\u6ca1\u6709\uff0c\u5bb9\u5668\u4e5f\u5c31\u7ed3\u675f\u4e86\n# 2.1 run.sh \u5185\u5bb9\nwhile true;do echo 123 >> \/tmp\/a.log;sleep 1;done\n\n# 2.2 dockerfile\u5185\u5bb9\nFROM centos:7\n\nADD run.sh \/opt\nCMD sh \/opt\/run.sh &\n# 2.3 \u6784\u5efa\u955c\u50cf\ndocker build -t test:v2 .\/\n\n# 2.4 \u542f\u52a8\u6d4b\u8bd5\ndocker container run -d --name test222 test:v2\n\n# 2.5 \u4f1a\u53d1\u73b0\u5bb9\u5668\u542f\u52a8\u4e4b\u540e\u7acb\u523b\u6302\u6389\n[root@test01 test]# docker container ls -a |grep test222\n......  Exited (0) 33 seconds ago  ......<\/code><\/pre>\n<p>\u793a\u83033\uff1a<\/p>\n<pre><code class=\"language-bash\"># \u6b63\u786e\u793a\u8303\uff1aCMD\u7684\u4ee3\u7801\u653e\u5230\u4e00\u4e2a\u6587\u4ef6\u91cc\u7136\u540e\u8fd0\u884c\u4e5f\u662f\u4e00\u6837\uff0c\u53ea\u8981\u662f\u5728\u524d\u53f0\u7136\u540e\u4e00\u76f4\u8fd0\u884c\u5c31\u90fd\u53ef\u4ee5\n# 3.1 run.sh \u5185\u5bb9\nwhile true;do echo 123 >> \/tmp\/a.log;sleep 1;done\n\n# 3.2 dockerfile\u5185\u5bb9\nFROM centos:7\n\nADD run.sh \/opt\nCMD sh \/opt\/run.sh\n\n# 3.3 \u6784\u5efa\u955c\u50cf\ndocker build -t test:v3 .\/\n\n# 3.4 \u542f\u52a8\u6d4b\u8bd5\ndocker container run -d --name test333 test:v3\n\n# 3.5 \u4f1a\u53d1\u73b0\u5bb9\u5668\u6b63\u5e38\u542f\u52a8\uff0c\u53ef\u4ee5\u5207\u5165\u5230\u5bb9\u5668\u91cc\u67e5\u770b\ndocker exec -ti test333 sh<\/code><\/pre>\n<\/li>\n<li>\n<p>2 \u3001\u4e0d\u540c\u4e4b\u5904<\/p>\n<p>\u6211\u4eec\u4e3a\u5bb9\u5668\u542f\u52a8\u76841\u53f7\u8fdb\u7a0b\u901a\u5e38\u4e0d\u5177\u5907\u64cd\u4f5c\u7cfb\u7edf\u7684init\u8fdb\u7a0b\u4e00\u6837\u7684\u529f\u80fd<\/p>\n<ul>\n<li>\u6bd4\u5982\u6536\u517b\u5b64\u513f\uff0c\u5b9a\u671f\u53d1\u8d77wait\u6216waitpid\u7cfb\u7edf\u8c03\u7528\u6765\u56de\u6536\u50f5\u5c38\u513f\u5b50<\/li>\n<li>\u518d\u6bd4\u5982\u4fe1\u53f7\u8f6c\u53d1\u7684\u529f\u80fd\uff0c\u6211\u4eec\u63a5\u4e0b\u6765\u4f1a\u5148\u4ecb\u7ecd\u56de\u6536\u50f5\u5c38\u513f\u5b50\uff0c\u7136\u540e\u518d\u4ecb\u7ecd\u4fe1\u53f7\u8f6c\u53d1\u3002<\/li>\n<\/ul>\n<p>\u8865\u5145\u8bf4\u660e\uff1a<\/p>\n<p>\u6211\u4eec\u5efa\u8bae\u5bb9\u5668\u8bbe\u8ba1\u539f\u5219\u662f\u4e00\u4e2a\u5bb9\u5668\u53ea\u8fd0\u884c\u4e00\u4e2a\u8fdb\u7a0b\uff0c\u4f46\u5728\u73b0\u5b9e\u5de5\u4f5c\u4e2d\u5f80\u5f80\u505a\u4e0d\u5230\uff0c\u8fd8\u662f\u4f1a\u751f\u51fa\u4e00\u4e9b\u5b50\u8fdb\u7a0b\uff0c<\/p>\n<p>\u64cd\u4f5c\u7cfb\u7edf\u7684init\u8fdb\u7a0b\u662f\u64cd\u4f5c\u7cfb\u7edf\u7684\u5f00\u53d1\u8005\u5f00\u53d1\u7684\uff0c\u5b83\u6709\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u529f\u80fd\u5c31\u662f\uff1a\u4f1a\u5145\u5f53\u5b64\u513f\u9662\u7684\u4f5c\u7528\u53bb\u56de\u6536\u5b64\u513f\u8fdb\u7a0b\uff0c\u5e76\u4e14\u4f1a\u5b9a\u671f\u53d1\u8d77wait\u6216\u8005waitpid\u7684\u7cfb\u7edf\u8c03\u7528\u53bb\u56de\u6536\u50f5\u5c38\u7684\u513f\u5b50\uff0c\u4f46\u662f\u4f60\u5bb9\u5668\u91cc\u76841\u53f7\u662f\u4f60\u5f00\u53d1\u7684\uff0c\u4f60\u6478\u7740\u81ea\u5df1\u7684\u826f\u5fc3\u95ee\u95ee\u81ea\u5df1\u6709\u6ca1\u6709\u5b9e\u73b0\u4e0a\u9762\u7684\u529f\u80fd\uff0c\u6ca1\u6709\u5427\uff0c\u6240\u4ee5\u4f60\u7684\u5bb9\u5668\u91cc\u6709\u50f5\u5c38\u8fdb\u7a0b\u800c\u65e0\u6cd5\u88ab\u56de\u6536\u4e5f\u5c31\u4e00\u70b9\u4e5f\u4e0d\u5947\u602a\u4e86\uff0c\u90a3\u5bb9\u5668\u91cc\u4e00\u65e6\u4ea7\u751f\u50f5\u5c38\u8fdb\u7a0b\u8be5\u5982\u4f55\u5e94\u5bf9\u5462\uff1f\u5e26\u7740\u8fd9\u4e9b\u7591\u95ee\u5f80\u540e\u770b\u5427<\/p>\n<\/li>\n<\/ul>\n<h1>\u4e8c \u50a8\u5907\u77e5\u8bc6\u50f5\u5c38\u8fdb\u7a0b\u4e0e\u5b64\u513f\u8fdb\u7a0b<\/h1>\n<h2>2.1 linux\u7cfb\u7edf\u4e2d\u8fdb\u7a0b\u7684\u72b6\u6001<\/h2>\n<p>\u5728linux\u7cfb\u7edf\u4e2d\uff0c\u65e0\u8bba\u662f\u8fdb\u7a0b\u8fd8\u662f\u7ebf\u7a0b\uff0c\u5185\u6838\u8f6c\u7ed9\u4f60\u90fd\u662f\u7528task_struct{}\u7ed3\u6784\u4f53\u6765\u8868\u793a\u7684\uff0c\u79f0\u4e4b\u4e3a\u4efb\u52a1task\uff0ctask\u662flinux\u91cc\u57fa\u672c\u7684\u8c03\u5ea6\u5355\u4f4d\uff0c\u6211\u4eec\u901a\u8fc7ps aux\u4f1a\u67e5\u770b\u5230\u4e00\u7cfb\u5217\u8fdb\u7a0b\u7684\u72b6\u6001\uff0c\u5176\u5b9e\u5c31\u662ftask\u7684\u72b6\u6001\u3002<\/p>\n<p>\u8fdb\u7a0b\u7684\u72b6\u6001\u5206\u4e3a\u4e24\u5927\u7c7b\uff0c\u6d3b\u7740\u7684\u4e0e\u6b7b\u4ea1\u7684<\/p>\n<ul>\n<li>\u4e00\u3001\u6d3b\u7740\u7684\n<ul>\n<li>1.1 \u8fd0\u884c\u7740\u7684\u8fdb\u7a0b<\/li>\n<li>(1)\u3001\u8fd0\u884c\u6001\uff0c\u6b63\u5360\u7528\u7740cpu\u8d44\u6e90\u5728\u8fd0\u884c\u7740\uff0c\u72b6\u6001\u4e3aR<\/li>\n<li>(2)\u3001\u5c31\u7eea\u6001\uff0c\u6ca1\u6709\u7533\u8bf7\u5230cpu\u8d44\u6e90\uff0c\u5904\u4e8e\u8fd0\u884c\u961f\u5217\u4e2d\uff0c\u4e00\u65e6\u7533\u8bf7\u5230cpu\u5c31\u53ef\u4ee5\u7acb\u5373\u6295\u5165\u8fd0\u884c\uff0c\u72b6\u6001\u4e5f\u4e3aR<\/li>\n<li>1.2 \u7761\u7720\u7684\u8fdb\u7a0b<\/li>\n<li>(1)\u3001\u53ef\u4e2d\u65ad\u7761\u7720\uff08TASK_INTERRUPTIBLE\uff09\uff0c\u72b6\u6001\u4e3aS\uff0c\u7b49\u5f85\u67d0\u4e2a\u8d44\u6e90\u800c\u8fdb\u5165\u7684\u72b6\u6001\uff0c\u6bd4\u5982\u7b49\u5f85\u672c\u5730\u6216\u7f51\u7edc\u7528\u6237\u8f93\u5165\uff0c\u4e5f\u53ef\u4ee5\u7b49\u5f85\u4e00\u4e2a\u4fe1\u53f7\u91cf\uff08Semaphore\uff09\uff0c\u6267\u884c\u7684IO\u64cd\u4f5c\u53ef\u4ee5\u5f97\u5230\u786c\u4ef6\u8bbe\u5907\u7684\u54cd\u5e94<\/li>\n<li>(2)\u3001\u4e0d\u53ef\u4e2d\u65ad\u7761\u7720\uff08TASK_UNINTERRUPTIBLE\uff09\uff0c\u72b6\u6001\u4e3aD\uff0c\u5904\u4e8e\u7761\u7720\u72b6\u6001\uff0c\u4f46\u662f\u6b64\u523b\u8fdb\u7a0b\u662f\u4e0d\u53ef\u4e2d\u65ad\u7684\uff0c\u610f\u601d\u662f\u4e0d\u54cd\u5e94\u5f02\u6b65\u4fe1\u53f7\uff0c\u6267\u884c\u7684IO\u64cd\u4f5c\u5f97\u4e0d\u5230\u786c\u4ef6\u8bbe\u5907\u7684\u54cd\u5e94\uff08\u53ef\u80fd\u662f\u56e0\u4e3a\u786c\u4ef6\u7e41\u5fd9\uff0c\u56e0\u6b64\u5bfc\u81f4\u5185\u5b58\u91cc\u7684\u4e00\u4e9b\u7f13\u5b58\u6570\u636e\u65e0\u6cd5\u53ca\u65f6\u5237\u5165\u78c1\u76d8\uff0c\u6240\u4ee5\u80af\u5b9a\u4e0d\u5141\u8bb8\u4f60\u4e2d\u65ad\u8be5\u7761\u7720\u72b6\u6001\uff0c\u5e76\u4e14\u4f60\u4f1a\u53d1\u73b0\u5904\u4e8eD\u72b6\u6001\u7684\u8fdb\u7a0bkill -9\u7adf\u7136\u4e5f\u6740\u4e0d\u6b7b\uff0c\u5c31\u662f\u4e3a\u4e86\u4fdd\u8bc1\u6570\u636e\u5b89\u5168\uff09<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8c\u3001\u6b7b\u4ea1\u7684\uff1a\u5373\u6267\u884cdo_exit()\u7ed3\u675f\u8fdb\u7a0b\n<ul>\n<li>\uff081\uff09EXIT_DEAD\uff1a\u4e5f\u5c31\u662f\u8fdb\u7a0b\u771f\u6b63\u7ed3\u675f\u9000\u51fa\u90a3\u4e00\u77ac\u95f4\u7684\u72b6\u6001\uff0c\u901a\u5e38\u6211\u4eec\u770b\u4e0d\u5230\uff0c\u56e0\u4e3a\u5f88\u5feb\u5c31\u6ca1\u4e86<\/li>\n<li>\uff082\uff09<strong>EXIT_ZOMBIE<\/strong>\uff0c\u8fd9\u4e2a\u662f\u8fdb\u7a0b\u8fdb\u5165EXIT_DEAD\u72b6\u6001\u524d\u7684\u4e00\u4e2a\u72b6\u6001\uff0c\u8be5\u72b6\u6001\u79f0\u4e4b\u4e3a\u50f5\u5c38\u8fdb\u7a0b\uff0c\u72b6\u6001\u663e\u793a\u4e3aZ\uff0c\u4e5f\u5c31\u662f\u8bf4\u6240\u6709\u8fdb\u7a0b\u5728\u6b7b\u524d\u90fd\u4f1a\u8fdb\u5165\u50f5\u5c38\u8fdb\u7a0b\u7684\u72b6\u6001\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u5f3a\u8c03\uff1a\u6211\u4eec\u63a5\u4e0b\u6765\u8981\u8ba8\u8bba\u7684\uff0c\u662f\u50f5\u5c38\u8fdb\u7a0b\u7684\u6b8b\u7559\u95ee\u9898\uff0c\u800c\u4e0d\u662f\u50f5\u5c38\u8fdb\u7a0b\u7684\u4ea7\u751f\u95ee\u9898\uff0c\u6240\u6709\u7684\u8fdb\u7a0b\u5728\u6b7b\u524d\u90fd\u4f1a\u8fdb\u5165\u50f5\u5c38\u8fdb\u7a0b\u7684\u72b6\u6001\uff0c\u5b83\u7684\u7236\u8fdb\u7a0b\u8d1f\u8d23\u56de\u6536\u8be5\u72b6\u6001\uff0c\u82e5\u6ca1\u6709\u53ca\u65f6\u56de\u6536\uff0c\u5c31\u4f1a\u6b8b\u7559\uff0c\u81f3\u4e8e\u6b8b\u7559\u540e\u6709\u4f55\u5f71\u54cd\u3001\u5982\u4f55\u56de\u6536\u7b49\u95ee\u9898\u8be6\u89e3\u5982\u4e0b<\/p>\n<h2>2.2 \u50f5\u5c38\u8fdb\u7a0b\u8be6\u89e3<\/h2>\n<pre><code class=\"language-bash\">#1\u3001\u4ec0\u4e48\u662f\u50f5\u5c38\u8fdb\u7a0b\n\u64cd\u4f5c\u7cfb\u7edf\u8d1f\u8d23\u7ba1\u7406\u8fdb\u7a0b\n\u6211\u4eec\u7684\u5e94\u7528\u7a0b\u5e8f\u82e5\u60f3\u5f00\u542f\u5b50\u8fdb\u7a0b\uff0c\u90fd\u662f\u5728\u5411\u64cd\u4f5c\u7cfb\u7edf\u53d1\u9001\u7cfb\u7edf\u8c03\u7528\n\u5f53\u4e00\u4e2a\u5b50\u8fdb\u7a0b\u5f00\u542f\u8d77\u6765\u4ee5\u540e\uff0c\u5b83\u7684\u8fd0\u884c\u4e0e\u7236\u8fdb\u7a0b\u662f\u5f02\u6b65\u7684\uff0c\u5f7c\u6b64\u4e92\u4e0d\u5f71\u54cd\uff0c\u8c01\u5148\u6b7b\u90fd\u4e0d\u4e00\u5b9a\n\nlinux\u64cd\u4f5c\u7cfb\u7edf\u7684\u8bbe\u8ba1\u89c4\u5b9a\uff1a\u7236\u8fdb\u7a0b\u5e94\u8be5\u5177\u5907\u968f\u65f6\u83b7\u53d6\u5b50\u8fdb\u7a0b\u72b6\u6001\u7684\u80fd\u529b\n\u5982\u679c\u5b50\u8fdb\u7a0b\u5148\u4e8e\u7236\u8fdb\u7a0b\u8fd0\u884c\u5b8c\u6bd5\uff0c\u6b64\u65f6\u82e5linux\u64cd\u4f5c\u7cfb\u7edf\u7acb\u523b\u628a\u8be5\u5b50\u8fdb\u7a0b\u7684\u6240\u6709\u8d44\u6e90\u5168\u90e8\u91ca\u653e\u6389\uff0c\u90a3\u4e48\u7236\u8fdb\u7a0b\u6765\u67e5\u770b\u5b50\u8fdb\u7a0b\u72b6\u6001\u65f6\uff0c\u4f1a\u7a81\u7136\u53d1\u73b0\u81ea\u5df1\u521a\u521a\u751f\u4e86\u4e00\u4e2a\u513f\u5b50\uff0c\u4f46\u662f\u513f\u5b50\u6ca1\u4e86\uff01\uff01\uff01\n\u8fd9\u5c31\u8fdd\u80cc\u4e86linux\u64cd\u4f5c\u7cfb\u7edf\u7684\u8bbe\u8ba1\u89c4\u5b9a\n\u6240\u4ee5\uff0clinux\u7cfb\u7edf\u51fa\u4e8e\u597d\u5fc3\uff0c\u82e5\u5b50\u8fdb\u7a0b\u5148\u4e8e\u7236\u8fdb\u7a0b\u8fd0\u884c\u5b8c\u6bd5\/\u6b7b\u6389\uff0c\u90a3\u4e48linux\u7cfb\u7edf\u5728\u6e05\u7406\u5b50\u8fdb\u7a0b\u7684\u65f6\u5019\uff0c\u4f1a\u5c06\u5b50\u8fdb\u7a0b\u5360\u7528\u7684\u91cd\u578b\u8d44\u6e90\u90fd\u91ca\u653e\u6389(\u6bd4\u5982\u5360\u7528\u7684\u5185\u5b58\u7a7a\u95f4\u3001cpu\u8d44\u6e90\u3001\u6253\u5f00\u7684\u6587\u4ef6\u7b49)\uff0c\u4f46\u662f\u4f1a\u4fdd\u7559\u4e00\u90e8\u5206\u5b50\u8fdb\u7a0b\u7684\u5173\u952e\u72b6\u6001\u4fe1\u606f\uff0c\u6bd4\u5982\u8fdb\u7a0b\u53f7the process ID\uff0c\u9000\u51fa\u72b6\u6001the termination status of the process\uff0c\u8fd0\u884c\u65f6\u95f4the amount of CPU time taken by the process\u7b49\uff0c\u6b64\u65f6\u5b50\u8fdb\u7a0b\u5c31\u76f8\u5f53\u4e8e\u6b7b\u4e86\u4f46\u662f\u6ca1\u6b7b\u5e72\u51c0\uff0c\u56e0\u800c\u5f97\u540d&quot;\u50f5\u5c38\u8fdb\u7a0b&quot;\uff0c\u5176\u5b9e\u50f5\u5c38\u8fdb\u7a0b\u662flinux\u64cd\u4f5c\u7cfb\u7edf\u51fa\u4e8e\u597d\u5fc3\uff0c\u4e3a\u7236\u8fdb\u7a0b\u51c6\u5907\u7684\u4e00\u4e9b\u5b50\u8fdb\u7a0b\u7684\u72b6\u6001\u6570\u636e\uff0c\u4e13\u95e8\u4f9b\u7236\u8fdb\u7a0b\u67e5\u9605\uff0c\u4e5f\u5c31\u662f\u8bf4&quot;\u50f5\u5c38\u8fdb\u7a0b&quot;\u662flinux\u7cfb\u7edf\u7684\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u6240\u6709\u7684\u5b50\u8fdb\u7a0b\u7ed3\u675f\u540e\u90fd\u4f1a\u8fdb\u5165\u50f5\u5c38\u8fdb\u7a0b\u7684\u72b6\u6001\n\n# 2\u3001\u90a3\u4e48\u95ee\u9898\u6765\u4e86\uff0c\u50f5\u5c38\u8fdb\u7a0b\u6b8b\u5b58\u7684\u90a3\u4e9b\u6570\u636e\u4e0d\u9700\u8981\u56de\u6536\u5417\uff1f\uff1f\uff1f\n\u5f53\u7136\u9700\u8981\u56de\u6536\u4e86\uff0c\u4f46\u662f\u50f5\u5c38\u8fdb\u7a0b\u6bd5\u7adf\u662flinux\u7cfb\u7edf\u51fa\u4e8e\u597d\u5fc3\uff0c\u4e3a\u7236\u8fdb\u7a0b\u51c6\u5907\u7684\u6570\u636e\uff0c\u81f3\u4e8e\u56de\u6536\u64cd\u4f5c\uff0c\u5e94\u8be5\u662f\u7236\u8fdb\u7a0b\u89c9\u5f97\u81ea\u5df1\u65e0\u9700\u67e5\u770b\u50f5\u5c38\u8fdb\u7a0b\u7684\u6570\u636e\u4e86\uff0c\u7236\u8fdb\u7a0b\u89c9\u5f97\u7559\u7740\u50f5\u5c38\u8fdb\u7a0b\u7684\u6570\u636e\u4e5f\u6ca1\u5565\u7528\u4e86\uff0c\u7136\u540e\u7531\u7236\u8fdb\u7a0b\u53d1\u8d77\u4e00\u4e2a\u7cfb\u7edf\u8c03\u7528wait \/ waitpid\u6765\u901a\u77e5linux\u64cd\u4f5c\u7cfb\u7edf\u8bf4\uff1a\u54e5\u4eec\uff0c\u8c22\u8c22\u4f60\u4e3a\u6211\u4fdd\u5b58\u7740\u8fd9\u4e9b\u50f5\u5c38\u7684\u5b50\u8fdb\u7a0b\u72b6\u6001\uff0c\u6211\u73b0\u5728\u7528\u4e0d\u4e0a\u4ed6\u4e86\uff0c\u4f60\u53ef\u4ee5\u628a\u4ed6\u4eec\u56de\u6536\u6389\u4e86\u3002\u7136\u540e\u64cd\u4f5c\u7cfb\u7edf\u518d\u6e05\u7406\u6389\u50f5\u5c38\u8fdb\u7a0b\u7684\u6b8b\u4f59\u72b6\u6001\uff0c\u4f60\u770b\uff0c\u4e24\u8005\u914d\u5408\u7684\u975e\u5e38\u9ed8\u5951\uff0c\u4f46\u662f\uff0c\u6015\u5c31\u6015\u5728\u3002\u3002\u3002\n\n# 3\u3001\u5206\u4e09\u79cd\u60c5\u51b5\u8ba8\u8bba\n1\u3001linux\u7cfb\u7edf\u81ea\u5e26\u7684\u4e00\u4e9b\u4f18\u79c0\u7684\u5f00\u6e90\u8f6f\u4ef6\uff0c\u8fd9\u4e9b\u8f6f\u4ef6\u5728\u5f00\u542f\u5b50\u8fdb\u7a0b\u65f6\uff0c\u7236\u8fdb\u7a0b\u5185\u90e8\u90fd\u4f1a\u53ca\u65f6\u8c03\u7528wait\/waitpid\u6765\u901a\u77e5\u64cd\u4f5c\u7cfb\u7edf\u56de\u6536\u50f5\u5c38\u8fdb\u7a0b\uff0c\u6240\u4ee5\uff0c\u6211\u4eec\u901a\u5e38\u770b\u4e0d\u5230\u4f18\u79c0\u7684\u5f00\u6e90\u8f6f\u4ef6\u5806\u79ef\u50f5\u5c38\u8fdb\u7a0b\uff0c\u56e0\u4e3a\u5f88\u53ca\u65f6\u5c31\u56de\u6536\u4e86\uff0c\u4e0elinux\u7cfb\u7edf\u914d\u5408\u7684\u5f88\u9ed8\u5951\n\n2\u3001\u4e00\u4e9b\u6c34\u5e73\u826f\u597d\u7684\u7a0b\u5e8f\u5458\u5f00\u53d1\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u8fd9\u4e9b\u7a0b\u5e8f\u5458\u6280\u672f\u529f\u5e95\u6df1\u539a\uff0c\u77e5\u9053\u7236\u8fdb\u7a0b\u8981\u5bf9\u5b50\u8fdb\u7a0b\u8d1f\u8d23\uff0c\u4f1a\u5728\u7236\u8fdb\u7a0b\u5185\u8003\u8651\u8c03\u7528wait\/waitpid\u6765\u901a\u77e5\u64cd\u4f5c\u7cfb\u7edf\u56de\u6536\u50f5\u5c38\u8fdb\u7a0b\uff0c\u4f46\u662f\u53d1\u8d77\u7cfb\u7edf\u8c03\u7528wait\/waitpid\u7684\u65f6\u95f4\u53ef\u80fd\u6162\u4e86\u4e9b\uff0c\u4e8e\u662f\u6211\u4eec\u53ef\u4ee5\u5728linux\u7cfb\u7edf\u4e2d\u901a\u8fc7\u547d\u4ee4\u67e5\u770b\u5230\u50f5\u5c38\u8fdb\u7a0b\u72b6\u6001\n[root@egon ~]# ps aux | grep [Z]+\n\n3\u3001\u4e00\u4e9b\u5783\u573e\u7a0b\u5e8f\u5458\uff0c\u6280\u672f\u975e\u5e38\u5783\u573e\uff0c\u53ea\u77e5\u9053\u5f00\u5b50\u8fdb\u7a0b\uff0c\u7236\u8fdb\u7a0b\u4e5f\u4e0d\u7ed3\u675f\uff0c\u5c31\u5728\u90a3\u50bb\u4e0d\u62c9\u51e0\u5730\u4e00\u76f4\u5f00\u5b50\u8fdb\u7a0b\uff0c\u4e5f\u538b\u6839\u4e0d\u77e5\u9053\u5565\u53eb\u50f5\u5c38\u8fdb\u7a0b\uff0c\u81f3\u4e8ewait\/waitpid\u7684\u7cfb\u7edf\u8c03\u7528\u66f4\u662f\u6ca1\u542c\u8bf4\u8fc7\uff0c\u8fd9\u4e2a\u65f6\u5019\uff0c\u5c31\u771f\u7684\u5783\u573e\u4e86\uff0c\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u4f1a\u5806\u79ef\u5f88\u591a\u50f5\u5c38\u8fdb\u7a0b\uff0c\u6b64\u65f6\u6211\u4eec\u7684\u8ba1\u7b97\u673a\u4f1a\u8fdb\u5165\u4e00\u4e2a\u5947\u602a\u7684\u73b0\u8c61\uff0c\u5c31\u662f\u5185\u5b58\u5145\u8db3\u3001\u786c\u76d8\u5145\u8db3\u3001cpu\u7a7a\u95f2\uff0c\u4f46\u662f\uff0c\u542f\u52a8\u65b0\u7684\u8f6f\u4ef6\u5c31\u662f\u65e0\u6cd5\u542f\u52a8\u8d77\u6765\uff0c\u4e3a\u5565\uff0c\u56e0\u4e3a\u64cd\u4f5c\u7cfb\u7edf\u8d1f\u8d23\u7ba1\u7406\u8fdb\u7a0b\uff0c\u6bcf\u542f\u52a8\u4e00\u4e2a\u8fdb\u7a0b\u5c31\u4f1a\u5206\u914d\u4e00\u4e2apid\u53f7\uff0c\u800cpid\u53f7\u662f\u6709\u9650\u7684\uff0c\u6b63\u5e38\u60c5\u51b5\u4e0bpid\u4e5f\u7528\u4e0d\u5b8c\uff0c\u4f46\u6015\u5c31\u6015\u5806\u79ef\u4e00\u5806\u50f5\u5c38\u8fdb\u7a0b\uff0c\u4ed6\u5403\u4e0d\u4e86\u591a\u5c11\u5185\u5b58\uff0c\u4f46\u80fd\u5403\u4e00\u5806pid\n\n# 4\u3001\u5982\u679c\u6e05\u7406\u50f5\u5c38\u8fdb\u7a0b\n\u9488\u5bf9\u60c5\u51b53\uff0c\u53ea\u6709\u4e00\u79cd\u89e3\u51b3\u65b9\u6848\uff0c\u5c31\u662f\u6740\u6b7b\u7236\u8fdb\u7a0b\uff0c\u90a3\u4e48\u50f5\u5c38\u7684\u5b50\u8fdb\u7a0b\u4f1a\u88ablinux\u7cfb\u7edf\u4e2dpid\u4e3a1\u7684\u9876\u7ea7\u8fdb\u7a0b\uff08init\u6216systemd\uff09\u63a5\u7ba1\uff0c\u9876\u7ea7\u8fdb\u7a0b\u5f88\u9760\u8c31\u3001\u5b83\u662f\u4e00\u5b9a\u4f1a\u5b9a\u671f\u53d1\u8d77\u7cfb\u7edf\u8c03\u7528wait\/waitpid\u6765\u901a\u77e5\u64cd\u4f5c\u7cfb\u7edf\u6e05\u7406\u50f5\u5c38\u513f\u5b50\u7684\n\n\u9488\u5bf9\u60c5\u51b52\uff0c\u53ef\u4ee5\u53d1\u9001\u4fe1\u53f7\u7ed9\u7236\u8fdb\u7a0b\uff0c\u901a\u77e5\u5b83\u5feb\u70b9\u53d1\u8d77\u7cfb\u7edf\u8c03\u7528wait\/waitpid\u6765\u6e05\u7406\u50f5\u5c38\u7684\u513f\u5b50\nkill -CHLD \u7236\u8fdb\u7a0bPID\n\n# 5\u3001\u7ed3\u8bed\n\u50f5\u5c38\u8fdb\u7a0b\u662flinux\u7cfb\u7edf\u51fa\u4e8e\u597d\u5fc3\u8bbe\u8ba1\u7684\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u4e00\u4e2a\u5b50\u8fdb\u7a0b\u6b7b\u6389\u540e\uff0c\u76f8\u5f53\u4e8e\u64cd\u4f5c\u7cfb\u7edf\u51fa\u4e8e\u597d\u5fc3\u5e2e\u5b83\u7684\u7238\u7238\u4fdd\u5b58\u5b83\u7684\u9057\u4f53\uff0c\u4e4b\u8bf4\u4ee5\u4f1a\u5728\u67d0\u79cd\u573a\u666f\u4e0b\u6709\u5bb3\uff0c\u662f\u56e0\u4e3a\u5b83\u7684\u7238\u7238\u4e0d\u9760\u8c31\uff0c\u513f\u5b50\u6b7b\u4e86\uff0c\u4e5f\u4e0d\u53ca\u65f6\u6536\u5c38(\u53d1\u8d77\u7cfb\u7edf\u8c03\u7528\u8ba9\u64cd\u4f5c\u7cfb\u7edf\u6536\u5c38)\n\n\u8bf4\u767d\u4e86\uff0c\u50f5\u5c38\u8fdb\u7a0b\u672c\u8eab\u65e0\u5bb3\uff0c\u6709\u5bb3\u7684\u662f\u90a3\u4e9b\u6c34\u5e73\u4e0d\u8db3\u7684\u7a0b\u5e8f\u5458\uff0c\u4ed6\u4eec\u603b\u662f\u559c\u6b22\u5199bug\uff0c\u597d\u5427\uff0c\u5982\u679c\u4f60\u60f3\u770b\u770b\u5783\u573e\u7a0b\u5e8f\u5458\u662f\u5982\u4f55\u5199bug\u6765\u5806\u79ef\u50f5\u5c38\u8fdb\u7a0b\u7684\uff0c\u4f60\u53ef\u4ee5\u770b\u4e00\u4e0b\u8fd9\u7bc7\u535a\u5ba2https:\/\/www.cnblogs.com\/linhaifeng\/articles\/13567273.html<\/code><\/pre>\n<p><strong>\u518d\u6b21\u5f3a\u8c03\uff1a\u7236\u8fdb\u7a0b\u53d1\u8d77\u7684wait\u6216waitpid\u8c03\u7528\u53ea\u80fd\u56de\u6536\u50f5\u5c38\u513f\u5b50\uff0c\u65e0\u6cd5\u56de\u6536\u5b59\u5b50\u8f88\uff0c\u53ea\u80fd\u662f\u513f\u5b50\uff0c\u53ea\u80fd\u662f\u513f\u5b50\uff0c\u53ea\u80fd\u662f\u513f\u5b50<\/strong><\/p>\n<p><strong>\u518d\u6b21\u5f3a\u8c03\uff1a\u7236\u8fdb\u7a0b\u53d1\u8d77\u7684wait\u6216waitpid\u8c03\u7528\u53ea\u80fd\u56de\u6536\u50f5\u5c38\u513f\u5b50\uff0c\u65e0\u6cd5\u56de\u6536\u5b59\u5b50\u8f88\uff0c\u53ea\u80fd\u662f\u513f\u5b50\uff0c\u53ea\u80fd\u662f\u513f\u5b50\uff0c\u53ea\u80fd\u662f\u513f\u5b50<\/strong><\/p>\n<p><strong>\u518d\u6b21\u5f3a\u8c03\uff1a\u7236\u8fdb\u7a0b\u53d1\u8d77\u7684wait\u6216waitpid\u8c03\u7528\u53ea\u80fd\u56de\u6536\u50f5\u5c38\u513f\u5b50\uff0c\u65e0\u6cd5\u56de\u6536\u5b59\u5b50\u8f88\uff0c\u53ea\u80fd\u662f\u513f\u5b50\uff0c\u53ea\u80fd\u662f\u513f\u5b50\uff0c\u53ea\u80fd\u662f\u513f\u5b50<\/strong><\/p>\n<p><strong>\u518d\u6b21\u5f3a\u8c03\uff1a\u7236\u8fdb\u7a0b\u53d1\u8d77\u7684wait\u6216waitpid\u8c03\u7528\u53ea\u80fd\u56de\u6536\u50f5\u5c38\u513f\u5b50\uff0c\u65e0\u6cd5\u56de\u6536\u5b59\u5b50\u8f88\uff0c\u53ea\u80fd\u662f\u513f\u5b50\uff0c\u53ea\u80fd\u662f\u513f\u5b50\uff0c\u53ea\u80fd\u662f\u513f\u5b50<\/strong><\/p>\n<p><strong>\u518d\u6b21\u5f3a\u8c03\uff1a\u7236\u8fdb\u7a0b\u53d1\u8d77\u7684wait\u6216waitpid\u8c03\u7528\u53ea\u80fd\u56de\u6536\u50f5\u5c38\u513f\u5b50\uff0c\u65e0\u6cd5\u56de\u6536\u5b59\u5b50\u8f88\uff0c\u53ea\u80fd\u662f\u513f\u5b50\uff0c\u53ea\u80fd\u662f\u513f\u5b50\uff0c\u53ea\u80fd\u662f\u513f\u5b50<\/strong><\/p>\n<h2>2.3 \u50f5\u5c38\u8fdb\u7a0b\u793a\u4f8b\u4ee3\u7801<\/h2>\n<p>\u5148\u50a8\u5907\u4e00\u4e2a\u77e5\u8bc6\uff0c\u770b\u5982\u4e0b\u4ee3\u7801<\/p>\n<pre><code class=\"language-bash\">#coding:utf-8\nfrom multiprocessing import Process\nimport os\nimport time\n\ndef task(n):\n    print(&quot;father---&gt;%s son---&gt;%s&quot; %(os.getppid(),os.getpid()))\n    time.sleep(n)\n\nif __name__ == &quot;__main__&quot;:\n    # \u9996\u9009\u5fc5\u987b\u77e5\u9053\u4e00\u4e2a\u77e5\u8bc6\u70b9\uff1a\u4e00\u4e2apython\u8fdb\u7a0b\uff0c\u5c31\u662f\u4e00\u4e2apython\u89e3\u91ca\u5668\u8fdb\u7a0b\uff0c\u4f60\u7684python\u4ee3\u7801\u672c\u8d28\u90fd\u662f\u5b57\u7b26\u4e32\u6700\u7ec8\u8fd0\u884c\u4e0e\u8c03\u7528\u7684\n    # \u5176\u5b9e\u90fd\u662f\u89e3\u91ca\u5668\u7684\u4ee3\u7801\n    # \u5bf9\u4e8e\u5f00\u542f\u7684\u5b50\u8fdb\u7a0b\uff0c\u5373\u4fbf\u4f60\u4e0d\u53bb\u6267\u884cp.join()\u65b9\u6cd5\uff0c\u4e5f\u4e0d\u7528\u62c5\u5fc3\uff0c\u56e0\u4e3a\u53ea\u8981python\u89e3\u91ca\u5668\u8fd8\u5728\u8fd0\u884c\u7740\uff0c\u5b83\u5c31\u4f1a\u5b9a\u671f\u5b9a\u671f\u5b9a\u671f\uff0c\n    # \u6ce8\u610f\u662f\u5b9a\u671f\uff0c\u53bb\u6267\u884c\n    # \u56de\u6536\u50f5\u5c38\u8fdb\u7a0b\u7684\u529f\u80fd\uff0c\n    # \u5f53\u5982\u679c\u4f60\u6ca1\u6709\u6267\u884cp.join()\uff0c\u540c\u65f6\u4e5ftime.sleep(100000)\u4f4f\u4e86\u4e3b\u8fdb\u7a0b\uff0c\u90a3\u80af\u5b9a\u5c31\u6ca1\u6709\u4eba\u6765\u56de\u6536\u50f5\u5c38\u513f\u5b50\u4e86\n\n    # \u6240\u4ee5\uff0c\u5982\u679c\u4f60\u5f00\u542f\u4e86\u4e00\u5343\u4e2a\u5b50\u8fdb\u7a0b\uff0c\u6bcf\u4e2a\u5b50\u8fdb\u7a0b\u90fd\u662f\u8fd0\u884c\u4e00\u884c\u6253\u5370\u529f\u80fd\u7136\u540e\u5728\u6781\u77ed\u7684\u65f6\u95f4\u5185\u8fdb\u5165\u50f5\u5c38\u8fdb\u7a0b\u72b6\u6001\n    # \u4e3b\u8fdb\u7a0b\u5728\u4e00\u4e2a\u4e2a\u5f00\u542f\u8fd9\u4e00\u5343\u4e2a\u5b50\u8fdb\u7a0b\u7684\u8fc7\u7a0b\u4e2d\u5c31\u4f1a\u5b9a\u671f\u56de\u6536\u4e00\u90e8\u5206\u50f5\u5c38\u513f\u5b50\uff0c\u5f53\u8fd0\u884c\u5230\u6700\u540e\u6267\u884c\u5230time.sleep(100000)\u65f6\uff0c\u4e3b\u8fdb\u7a0b\u5c31\u505c\u4f4f\u4e86\n    # \u5269\u4e0b\u7684\u6ca1\u6765\u5f97\u53ca\u56de\u6536\u7684\u50f5\u5c38\u513f\u5b50\u4e5f\u5c31\u6b8b\u7559\u4e86\uff0c\u6b64\u5904\u6211\u60f3\u544a\u8bc9\u5927\u5bb6\u7684\u5c31\u662f\u8fd9\u4ef6\u4e8b\uff0c\u4f60\u4e0d\u8981\u4ee5\u4e3a\u4f60\u5f00\u4e00\u5343\u4e2a\u5b50\u8fdb\u7a0b\u6bcf\u4e2a\u90fd\u5f88\u5feb\u7ed3\u675f\uff0c\u7136\u540e\u6700\u540e\u4f60\u5c31\n    # \u4f1a\u770b\u5230\u4e00\u5343\u4e2a\u50f5\u5c38\u513f\u5b50\n\n    for i in range(1000):\n        Process(target=task,args=(0,)).start()\n\n    time.sleep(100000)<\/code><\/pre>\n<p>\u4e0a\u8ff0\u4ee3\u7801\u4f60\u53bb\u6267\u884c\u4e00\u4e0b\uff0c\u53ea\u4f1a\u770b\u5230\u6709\u51e0\u4e2a\u50f5\u5c38\u8fdb\u7a0b\u6b8b\u7559\u3002<\/p>\n<p>\u7efc\u4e0a\uff0c\u6211\u4eec\u7684\u7528\u6765\u4ea7\u751f\u50f5\u5c38\u8fdb\u7a0b\u7684\u4ee3\u7801\u793a\u8303\u5982\u4e0b\uff0c\u5148\u8ba9\u5b50\u8fdb\u7a0b\u8fd0\u884c\u4e00\u5c0f\u4f1a\u4e0d\u8981\u7acb\u523b\u7ed3\u675f\uff08\u5426\u5219\u7acb\u5373\u4ea7\u751f\u7684\u50f5\u5c38\u8fdb\u7a0b\uff0c\u6781\u6709\u53ef\u80fd\u4f1a\u88ab\u6b63\u5728\u8dd1\u7740\u7684\u4e3b\u8fdb\u7a0b\u56de\u6536\u4e86\uff09\uff0c\u7136\u540e\u7b49\u6240\u6709\u513f\u5b50\u90fd\u5f00\u542f\u4e86\u4e4b\u540e\uff0c\u4e3b\u8fdb\u7a0b\u6267\u884ctime.sleep(100000)\u540e\u5f7b\u5e95\u505c\u4f4f\u3001\u4e0d\u4f1a\u6267\u884c\u4efb\u4f55\u5b9a\u671f\u56de\u6536\u50f5\u5c38\u513f\u5b50\u7684\u4efb\u52a1\u4e86\u3002\u6b64\u65f6\u5c31\u53ef\u4ee5\u9759\u9759\u7b49\u7740\u6495\u6389\u7684\u513f\u5b50\uff0c\u6bcf\u6b7b\u4e00\u4e2a\u5c31\u4ea7\u751f\u4e00\u4e2a\u50f5\u5c38<\/p>\n<pre><code class=\"language-bash\">=====================\u7a97\u53e31\u4e2d======================\n[root@egon ~]# cat test.py \n#coding:utf-8\nfrom multiprocessing import Process\nimport os\nimport time\n\ndef task(n):\n    print(&quot;father---&gt;%s son---&gt;%s&quot; %(os.getppid(),os.getpid()))\n    time.sleep(n)\n\nif __name__ == &quot;__main__&quot;:\n    p1=Process(target=task,args=(10,))\n    p2=Process(target=task,args=(10,))\n    p3=Process(target=task,args=(10,))\n    p1.start()\n    p2.start()\n    p3.start()\n    print(&quot;main---&gt;%s&quot; %os.getpid())\n    time.sleep(10000)\n[root@egon ~]# python test.py &amp;\n[5] 104481\n[root@egon ~]# main---&gt;104481\nfather---&gt;104481 son---&gt;104482\nfather---&gt;104481 son---&gt;104483\nfather---&gt;104481 son---&gt;104484\n\n=====================\u7a97\u53e32\u4e2d\uff1a\u5927\u6982\u8fc7\u4e2a\u5341\u51e0\u79d2\u540e\u67e5\u770b======================\n[root@egon ~]# ps aux |grep Z\nUSER        PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND\nroot     104482  0.0  0.0      0     0 pts\/2    Z    18:24   0:00 [python] &lt;defunct&gt;\nroot     104483  0.0  0.0      0     0 pts\/2    Z    18:24   0:00 [python] &lt;defunct&gt;\nroot     104484  0.0  0.0      0     0 pts\/2    Z    18:24   0:00 [python] &lt;defunct&gt;\nroot     104488  0.0  0.0 112828   960 pts\/4    R+   18:24   0:00 grep --color=auto Z\n\n=====================\u5982\u4e0b\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u50f5\u5c38\u5bf9\u5e94\u7684\u8d44\u6e90\u90fd\u5df2\u7ecf\u6ca1\u6709\u4e86======================\n# cat \/proc\/104482\/cmdline\n# cat \/proc\/104482\/smaps\n# cat \/proc\/104482\/maps\n# ls -l \/proc\/104482\/fd\n\n\u4efb\u4f55\u8fdb\u7a0b\u7684\u9000\u51fa\u90fd\u662f\u8c03\u7528do_exit()\u7cfb\u7edf\u63a5\u53e3\uff0cdo_exit()\u5185\u90e8\u4f1a\u91ca\u653e\u8fdb\u7a0btask_struct\u91cc\u7684mm\/shm\/sem\/files\u7b49\u6587\u4ef6\u8d44\u6e90\uff0c\u53ea\u7559\u4e0b\u4e00\u4e2astask_struct instance\u7a7a\u58f3\uff0c\u5982\u4e0a\u6240\u793a\n\n\u5e76\u4e14\uff0c\u8fd9\u4e2a\u8fdb\u7a0b\u4e5f\u5df2\u7ecf\u4e0d\u54cd\u5e94\u4efb\u4f55\u7684\u4fe1\u53f7\u4e86\uff0c\u65e0\u8bba SIGTERM(15) \u8fd8\u662f SIGKILL(9)\nkill -9 104482\nkill -15 104482\nps aux |grep Z # \u4f1a\u53d1\u73b0104482\u8fd9\u4e2a\u50f5\u5c38\u8fdb\u7a0b\u4f9d\u7136\u5b58\u5728\n\n# \u8865\u5145\n\u53ef\u4ee5\u53bb\u67e5\u770bp1.join()\u7684\u4ee3\u7801\uff0c\u91cc\u9762\u6709\u4e00\u4e2a\u5173\u4e8ewait\u7684\u8c03\u7528\uff0c\u5728\u4e3b\u8fdb\u7a0b\u91cc\u8c03\u7528p1.join()\u7684\u76ee\u7684\u5c31\u662f\u7b49\u5b50\u8fdb\u7a0b\u6302\u6389\u540e\n\u800c\u56de\u6536\u5b83\u7684\u5c38\u4f53\uff0c\u6240\u4ee5python\u4ee3\u7801\u591a\u8fdb\u7a0b\u7f16\u7a0b\uff0c\u5728\u4e3b\u8fdb\u7a0b\u91cc\u5efa\u8bae\u5728\u4e3b\u8fdb\u7a0b\u91cc\u4e00\u4e2a\u4e2ajoin\u4e3b\u5b50\u8fdb\u7a0b\u3002\n\u800c\u4e0a\u4f8b\u4e2d\uff0c\u4e3b\u8fdb\u7a0b\u5728\u8fdb\u5165sleep\u524d\uff0c\u6211\u4eec\u5e76\u6ca1\u6709\u8c03\u7528join\u65b9\u6cd5\uff0c\u4e8e\u662f\u50f5\u5c38\u8fdb\u7a0b\u5c31\u4ea7\u751f\u4e86\uff0c\u56e0\u4e3a\u4e3b\u8fdb\u7a0b\u4e00\u76f4\u505c\u5728\u539f\u5730\uff0c\u5e76\u6ca1\u6709\u53d1\u8d77wait\u7cfb\u7edf\u8c03\u7528\u7684\u673a\u4f1a<\/code><\/pre>\n<h2>2.4 \u5b64\u513f\u8fdb\u7a0b<\/h2>\n<p>\u8bf4\u5728\u6700\u524d\u9762\uff1a\u5b64\u513f\u8fdb\u7a0b\u6307\u7684\u662f\u4e00\u4e2a\u8fdb\u7a0b\u7684\u7236\u8fdb\u7a0b\u6b7b\u6389\u4e86\uff0c\u5b83\u5c31\u6210\u4e86\u5b64\u513f\uff0c\u5b64\u513f\u4f1a\u88ab1\u53f7\u8fdb\u7a0b\u6536\u517b\uff0c\u800c\u4e0d\u662f\u88ab\u5b83\u7237\u7237\u8fdb\u7a0b\u3001\u6216\u8005\u592a\u7237\u7237\u8fdb\u7a0b\u6536\u517b\uff0c\u8fd9\u4e00\u70b9\u5f88\u5173\u952e<\/p>\n<pre><code class=\"language-bash\">\u7236\u8fdb\u7a0b\u5148\u6b7b\u6389\uff0c\u800c\u5b83\u7684\u4e00\u4e2a\u6216\u591a\u4e2a\u5b50\u8fdb\u7a0b\u8fd8\u5728\u8fd0\u884c\uff0c\u90a3\u4e48\u90a3\u4e9b\u5b50\u8fdb\u7a0b\u5c06\u6210\u4e3a\u5b64\u513f\u8fdb\u7a0b\u3002\u5b64\u513f\u8fdb\u7a0b\u5c06\u88ab\u8fdb\u7a0b\u53f7\u4e3a1\u7684\u9876\u7ea7\u8fdb\u7a0b\uff08init\u6216systemd\uff09\u6240\u6536\u517b\uff0c\u5e76\u7531\u9876\u7ea7\u8fdb\u7a0b\u5bf9\u5b83\u4eec\u5b8c\u6210\u72b6\u6001\u6536\u96c6\u5de5\u4f5c\u3002\n\u6b64\u5904\u9700\u8981\u5f3a\u8c03\u4e00\u53e5\uff1a\u4e0d\u7ba1\u5b50\u8fdb\u7a0b\u65f6\u4ec0\u4e48\u72b6\u6001\uff0c\u54ea\u6015\u5b83\u662f\u50f5\u5c38\u72b6\u6001\u4e5f\u4e00\u6837\uff0c\u53ea\u8981\u5b83\u7684\u7236\u8fdb\u7a0b\u6302\u6389\u4e86\uff0c\u5b83\u5c31\u4f1a\u88ab1\u53f7\u8fdb\u7a0b\u6536\u517b\u3002\n\n\u8fdb\u7a0b\u5c31\u597d\u50cf\u662f\u4e00\u4e2a\u6c11\u653f\u5c40\uff0c\u4e13\u95e8\u8d1f\u8d23\u5904\u7406\u5b64\u513f\u8fdb\u7a0b\u7684\u5584\u540e\u5de5\u4f5c\u3002\u6bcf\u5f53\u51fa\u73b0\u4e00\u4e2a\u5b64\u513f\u8fdb\u7a0b\u7684\u65f6\u5019\uff0c\u5185\u6838\u5c31\u628a\u5b64\u513f\u8fdb\u7a0b\u7684\u7236\u8fdb\u7a0b\u8bbe\u7f6e\u4e3a\u9876\u7ea7\u8fdb\u7a0b\uff0c\u800c\u9876\u7ea7\u8fdb\u7a0b\u4f1a\u5faa\u73af\u5730wait()\u5b83\u7684\u5df2\u7ecf\u9000\u51fa\u7684\u5b50\u8fdb\u7a0b\u3002\u8fd9\u6837\uff0c\u5f53\u4e00\u4e2a\u5b64\u513f\u8fdb\u7a0b\u51c4\u51c9\u5730\u7ed3\u675f\u4e86\u5176\u751f\u547d\u5468\u671f\u7684\u65f6\u5019\uff0c\u9876\u7ea7\u8fdb\u7a0b\u5c31\u4f1a\u4ee3\u8868\u515a\u548c\u653f\u5e9c\u51fa\u9762\u5904\u7406\u5b83\u7684\u4e00\u5207\u5584\u540e\u5de5\u4f5c\u3002\u56e0\u6b64\u5b64\u513f\u8fdb\u7a0b\u5e76\u4e0d\u4f1a\u6709\u4ec0\u4e48\u5371\u5bb3\u3002\n\n\u6211\u4eec\u6765\u6d4b\u8bd5\u4e00\u4e0b\uff08\u521b\u5efa\u5b8c\u5b50\u8fdb\u7a0b\u540e\uff0c\u4e3b\u8fdb\u7a0b\u6240\u5728\u7684\u8fd9\u4e2a\u811a\u672c\u5c31\u9000\u51fa\u4e86\uff0c\u5f53\u7236\u8fdb\u7a0b\u5148\u4e8e\u5b50\u8fdb\u7a0b\u7ed3\u675f\u65f6\uff0c\u5b50\u8fdb\u7a0b\u4f1a\u88ab\u9876\u7ea7\u8fdb\u7a0b\u6536\u517b\uff0c\u6210\u4e3a\u5b64\u513f\u8fdb\u7a0b\uff0c\u800c\u975e\u50f5\u5c38\u8fdb\u7a0b\uff09\uff0c\u6587\u4ef6\u5185\u5bb9\n\nimport os\nimport sys\nimport time\n\npid = os.getpid()\nppid = os.getppid()\nprint &#039;im father&#039;, &#039;pid&#039;, pid, &#039;ppid&#039;, ppid\npid = os.fork()\n#\u6267\u884cpid=os.fork()\u5219\u4f1a\u751f\u6210\u4e00\u4e2a\u5b50\u8fdb\u7a0b\n#\u8fd4\u56de\u503cpid\u6709\u4e24\u79cd\u503c\uff1a\n#    \u5982\u679c\u8fd4\u56de\u7684pid\u503c\u4e3a0\uff0c\u8868\u793a\u5728\u5b50\u8fdb\u7a0b\u5f53\u4e2d\n#    \u5982\u679c\u8fd4\u56de\u7684pid\u503c&gt;0\uff0c\u8868\u793a\u5728\u7236\u8fdb\u7a0b\u5f53\u4e2d\nif pid &gt; 0:\n    print &#039;father died..&#039;\n    sys.exit(0)\n\n# \u4fdd\u8bc1\u4e3b\u7ebf\u7a0b\u9000\u51fa\u5b8c\u6bd5\ntime.sleep(1)\nprint &#039;im child&#039;, os.getpid(), os.getppid()\n\n\u6267\u884c\u6587\u4ef6\uff0c\u8f93\u51fa\u7ed3\u679c\uff1a\nim father pid 32515 ppid 32015\nfather died..\nim child 32516 1\n\n\u770b\uff0c\u5b50\u8fdb\u7a0b\u5df2\u7ecf\u88abpid\u4e3a1\u7684\u9876\u7ea7\u8fdb\u7a0b\u63a5\u6536\u4e86\uff0c\u6240\u4ee5\u50f5\u5c38\u8fdb\u7a0b\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\u662f\u4e0d\u5b58\u5728\u7684\uff0c\u5b58\u5728\u53ea\u6709\u5b64\u513f\u8fdb\u7a0b\u800c\u5df2\uff0c\u5b64\u513f\u8fdb\u7a0b\u58f0\u660e\u5468\u671f\u7ed3\u675f\u81ea\u7136\u4f1a\u88ab\u9876\u7ea7\u8fdb\u7a0b\u6765\u9500\u6bc1\u3002<\/code><\/pre>\n<h2>2.5 \u7efc\u5408\u7ec3\u4e60<\/h2>\n<p>\u6700\u540e\u6211\u4eec\u6765\u505a\u4e00\u4e2a\u5c0f\u7ec3\u4e60\uff0c\u628a\u4e0a\u9762\u5173\u4e8e\u50f5\u5c38\u8fdb\u7a0b\u4e0e\u5b64\u513f\u8fdb\u7a0b\u7684\u77e5\u8bc6\u70b9\u4e32\u4e00\u4e0b<\/p>\n<p>\u5728\u505a\u7ec3\u4e60\u524d\u9700\u8981\u518d\u6b21\u5f3a\u8c03\uff1a\u6211\u4eec\u8bf4\u4e00\u4e2a\u5b8c\u6574\u64cd\u4f5c\u7cfb\u7edf\u81ea\u5e26\u7684init\u8fdb\u7a0b\u662f\u4f1a\u5b9a\u671f\u53d1\u8d77wait\u6216waitpid\u7cfb\u7edf\u8c03\u7528\u6765\u56de\u6536\u50f5\u5c38\u513f\u5b50\u7684\uff0c\u8fd9\u91cc\u9700\u8981\u5f3a\u8c03\u7684\u662f<\/p>\n<ul>\n<li>\n<p>1\u3001wait\u6216waitpid\u53ea\u80fd\u56de\u6536\u513f\u5b50\uff0c\u53ea\u80fd\u662f\u513f\u5b50\u3001\u53ea\u80fd\u662f\u513f\u5b50\uff0c\u53ea\u80fd\u662f\u513f\u5b50\uff0c\u5b59\u5b50\u53ca\u5b59\u5b50\u3002\u3002\u90fd\u4e0d\u884c<\/p>\n<\/li>\n<li>\n<p>2\u3001\u5f53kill -9\u65e0\u6cd5\u6740\u6389\u50f5\u5c38\u8fdb\u7a0b<\/p>\n<\/li>\n<li>\n<p>3\u3001\u5f53\u6740\u6389\u4e00\u4e2a\u8fdb\u7a0b\u65f6\uff08\u5047\u8bbe\u5b83\u4ee5\u88abkill -9\u6740\u6389\uff0c\u50f5\u5c38\u8fdb\u7a0b\u65f6\u4e0d\u80fd\u88abkill -9\u7684\uff09<\/p>\n<ul>\n<li>\u5982\u679c\u5b83\u7684\u7236\u8fdb\u7a0b\u5b58\u5728\u5e76\u4e14\u6ca1\u6709\u53d1\u8d77wait\u6216waitpid\u90a3\u4e48\u8be5\u8fdb\u7a0b\u5c31\u4f1a\u505c\u7559\u5728\u50f5\u5c38\u8fdb\u7a0b\u7684\u72b6\u6001\uff0c\u6b64\u65f6\u6211\u4eec\u6740\u6b7b\u8be5\u7236\u8fdb\u7a0b\uff0c\u90a3\u4e48\u8be5\u7236\u8fdb\u7a0b\u7684\u50f5\u5c38\u513f\u5b50\u5c31\u4f1a\u88abpid\u4e3a1\u7684\u8fdb\u7a0b\u6536\u517b\uff0cpid\u4e3a1\u7684\u8fdb\u7a0b\u4f1a\u8d1f\u8d23\u56de\u6536<\/li>\n<li>\u5982\u679c\u5b83\u7684\u7236\u8fdb\u7a0b\u4f1a\u53d1\u8d77wait\u6216waitpid\u90a3\u4e48\u8be5\u8fdb\u7a0b\u5c31\u4f1a\u88ab\u56de\u6536\uff0c\u4f60\u5c31\u770b\u4e0d\u5230\u4ec0\u4e48\u50f5\u5c38\u8fdb\u7a0b\u7684\u72b6\u6001<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u793a\u4f8b\u4ee3\u7801<\/p>\n<pre><code class=\"language-bash\">#coding:utf-8\nfrom multiprocessing import Process\nimport os\nimport time\n\ndef task1(n):\n    print(&quot;\u513f\u5b50,PID:%s PPID:%s&quot; %(os.getpid(),os.getppid()))\n    pp1=Process(target=task2,args=(10,))\n    pp2=Process(target=task2,args=(10,))\n    pp3=Process(target=task2,args=(10,))\n    pp1.start()\n    pp2.start()\n    pp3.start()\n    time.sleep(n)\n\ndef task2(n):\n    print(&quot;\u5b59\u5b50,PID:%s PPID:%s&quot; %(os.getpid(),os.getppid()))\n    time.sleep(n)\n\nif __name__ == &quot;__main__&quot;:\n    p=Process(target=task1,args=(10000,))\n    p.start()\n\n    print(&quot;\u7238\u7238,PID: %s&quot; %os.getpid())\n    time.sleep(10000)<\/code><\/pre>\n<p>\u5b9e\u9a8c<\/p>\n<pre><code class=\"language-bash\">[root@test01 test2]# echo $$  # \u5f53\u524dbash\u8fdb\u7a0b\u7684pid\u4e3a63047\n63047\n\n[root@test01 test2]# python test.py \n\u7238\u7238,PID: 42801\n\u513f\u5b50,PID:42802 PPID:42801\n\u5b59\u5b50,PID:42803 PPID:42802\n\u5b59\u5b50,PID:42804 PPID:42802\n\u5b59\u5b50,PID:42805 PPID:42802\n\n# \u7136\u540e\u5728\u53e6\u5916\u4e00\u4e2a\u7ec8\u7aef\u67e5\u770b\n[root@test01 test2]# ps -elf |grep python\n0 S root      42801  63047  0  80   0 - 37800 poll_s 15:17 pts\/1    00:00:00 python test.py\n1 S root      42802  42801  0  80   0 - 37800 poll_s 15:17 pts\/1    00:00:00 python test.py\n1 Z root      42803  42802  0  80   0 -     0 do_exi 15:17 pts\/1    00:00:00 [python] &lt;defunct&gt;\n1 Z root      42804  42802  0  80   0 -     0 do_exi 15:17 pts\/1    00:00:00 [python] &lt;defunct&gt;\n1 Z root      42805  42802  0  80   0 -     0 do_exi 15:17 pts\/1    00:00:00 [python] &lt;defunct&gt;\n0 S root      44990   6509  0  80   0 - 28182 pipe_w 15:21 pts\/0    00:00:00 grep --color=auto python\n\n# \u8fdb\u7a0b\u7684\u5173\u7cfb\uff1a\n        \u7236\u8fdb\u7a0b                 \u5b50\u8fdb\u7a0b     \u5b59\u5b50\u8fdb\u7a0b     \u66fe\u5b59\u5b50\u8fdb\u7a0b  \n\u8fdb\u7a0b\u5373bash\uff0cpid\u4e3a63047--------\u300b42801----\u300b42802----\u300b42803\u300142804\u300142805\n\n# \u6ce8\u610f\uff0cbash\u8fd9\u4e2a\u8fdb\u7a0b\u4e5f\u6709\u5b9a\u671f\u53d1\u8d77wait\u4e0ewaitpid\u7684\u529f\u80fd\uff0c\u6240\u4ee5\u5f53\u5b83\u7684\u513f\u5b50\u6b7b\u6389\u540e\uff0c\u662f\u4f1a\u88ab\u56de\u6536\u7684\n\n# \u5b9e\u9a8c1\uff1a\u5c1d\u8bd5\u6740\u6389\u66fe\u5b59\u5b50\u8fdb\u7a0b\uff1a42803\u300142804\u300142805\uff0c\u4f1a\u53d1\u73b0\u662f\u6740\u4e0d\u6b7b\u7684\nkill -9 42803\nkill -9 42804\nkill -9 42805\n\n# \u5b9e\u9a8c2\uff1a\u5c1d\u8bd5\u6740\u6389\u5b59\u5b50\u8fdb\u7a0b42802\uff0c\u5b83\u7684\u7239\u8fdb\u7a0b42801\u5728\u539f\u5730sleep\u4f4f\u4e86\uff0c\u6240\u4ee5\u4e0d\u4f1a\u56de\u6536\u5b83\uff0c\u5b83\u4f1a\u8fdb\u5165\u50f5\u5c38\u8fdb\u7a0b\u7684\u72b6\u6001\uff0c\u4f46\u662f\u4f46\u662f\u4f46\u662f42802\u7684\u4e09\u4e2a\u50f5\u5c38\u513f\u5b50\u4f1a\u6210\u4e3a\u5b64\u513f\u88abpid\u4e3a1\u7684\u6536\u517b\uff0c\u7136\u540e\u88ab\u56de\u6536\uff0c\u6240\u4ee5\u6211\u4eec\u4f1a\u770b\u5230\u53ea\u670942802\u8fd9\u4e2a\u8fdb\u7a0b\u79f0\u4e3a\u50f5\u5c38\n[root@test01 test2]# ps -elf |grep python\n0 S root      42801  63047  0  80   0 - 37800 poll_s 15:17 pts\/1    00:00:00 python test.py\n1 Z root      42802  42801  0  80   0 -     0 do_exi 15:17 pts\/1    00:00:00 [python] &lt;defunct&gt;\n\n# \u5b9e\u9a8c3\uff1a\u7136\u540e\u6211\u4eec\u6740\u6b7b\u5b50\u8fdb\u7a0b42801\uff0c\u5728\u5b83\u6b7b\u540e\u5b83\u80af\u5b9a\u4f1a\u6210\u4e3a\u50f5\u5c38\uff0c\u95ee\u9898\u662f\u5b83\u723963047\u4f1a\u4e0d\u4f1a\u56de\u6536\uff0c\u4f1a\uff0c\u56e0\u4e3a\u5979\u7239\u662fbash\u662f\u6709\u8fd9\u4e2a\u529f\u80fd\u7684\uff0c\u6240\u4ee5\u5b83\u7684\u50f5\u5c38\u72b6\u6001\u4e0d\u4f1a\u6b8b\u7559\n[root@test01 test2]# kill -9 42801\n[root@test01 test2]# ps -elf |grep python\n0 S root      50846   6509  0  80   0 - 28182 pipe_w 15:34 pts\/0    00:00:00 grep --color=auto python<\/code><\/pre>\n<p>linux\u8fdb\u7a0b\u7ba1\u7406\u66f4\u591a\u5185\u5bb9\uff1a\u8be6\u89c1https:\/\/egonlin.com\/?p=210<\/p>\n<h1>\u4e09 \u5bb9\u5668\u5185\u7684\u50f5\u5c38\u8fdb\u7a0b<\/h1>\n<h2>3.1 \u5bb9\u5668\u5185\u6b8b\u7559\u50f5\u5c38\u8fdb\u7a0b\u7684\u539f\u56e0<\/h2>\n<p>\u518d\u6b21\u91cd\u7533\u4e00\u4e2a\u91cd\u70b9\uff1a<\/p>\n<p>\u64cd\u4f5c\u7cfb\u7edf\u5185\u67091\u53f7\u8fdb\u7a0b\uff0c\u5bb9\u5668\u5185\u4e5f\u6709\u4e00\u4e2a1\u53f7\u8fdb\u7a0b<\/p>\n<p>\u533a\u522b\u662f\u64cd\u4f5c\u7cfb\u7edf\u5185\u76841\u53f7\u8fdb\u7a0b\u91cc\u7684\u4ee3\u7801\u662f\u522b\u4eba\u5f00\u53d1\u7684\uff0c\u5f00\u53d1\u8005\u4e3a\u5176\u52a0\u5165\u4e86\u4e24\u4e2a\u4e2a\u91cd\u8981\u7684\u529f\u80fd<\/p>\n<ul>\n<li>\u5f53\u8fdb\u7a0b\u79f0\u4e3a\u5b64\u513f\u8fdb\u7a0b\u540e\uff0c1\u53f7\u8fdb\u7a0b\u4f1a\u6536\u517b\u8be5\u5b64\u513f\u3001\u79f0\u4e3a\u4ed6\u7684\u7239<\/li>\n<li>\u5b9a\u4e49\u53d1\u8d77wait\u6216waitpid\u7684\u7cfb\u7edf\u8c03\u7528\u53bb1\u53f7\u8fdb\u7a0b\u7684\u50f5\u5c38\u513f\u5b50\u3002<\/li>\n<\/ul>\n<p>\u800c\u5bb9\u5668\u91cc\u76841\u53f7\u8fdb\u7a0b\u7684\u4ee3\u7801\u662f\u4f60\u5f00\u53d1\u7684\uff0c\u4f60\u5e76\u6ca1\u6709\u8003\u8651\u53d1\u8d77wait\u4e0ewaitpid\u8fd9\u4e2a\u7cfb\u7edf\u8c03\u7528\u7684\u64cd\u4f5c\u3002\u4e8e\u662f<\/p>\n<p>\u5728\u5bb9\u5668\u8fd0\u884c\u4e00\u6bb5\u65f6\u95f4\u540e\uff0c\u5982\u679c\u6709\u5b50\u8fdb\u7a0b\u5148\u6302\u6389\u4e86\uff0c\u5b83\u7239\u53c8\u6ca1\u6709\u8d1f\u8d23\u56de\u6536\uff0c\u90a3\u4e48\u50f5\u5c38\u8fdb\u7a0b\u7684\u72b6\u6001\u5c31\u6b8b\u7559\u4e86\u4e0b\u6765\uff0cpid\u8d44\u6e90\u5c31\u88ab\u767d\u767d\u5360\u4f4f\u4e86<\/p>\n<p>\u6709\u4eba\u4f1a\u95ee\uff0c\u90a3\u5982\u679c\u6211\u5173\u6389\u5bb9\u5668\uff0c\u6216\u8005\u5220\u6389k8s\u91cc\u7684pod\uff0c\u5bb9\u5668\u91cc\u7684\u50f5\u5c38\u8fdb\u7a0b\u8fd8\u4f1a\u6b8b\u7559\u5417\uff0c\u7b54\u6848\u662f\u80af\u5b9a\u4e0d\u4f1a\u6b8b\u7559\uff0c\u4e3a\u4ec0\u4e48\u5462\uff1f<\/p>\n<pre><code class=\"language-bash\">\u5728\u5bb9\u5668\u5e73\u53f0\u4e0a\uff0c\u65e0\u8bba\u4f60\u662f\u7528k8s\u53bb\u5220\u9664\u4e00\u4e2apod\uff0c\u6216\u8005\u7528docker\u5173\u95ed\u4e00\u4e2a\u5bb9\u5668\uff0c\u90fd\u4f1a\u7528\u5230Containerd\u8fd9\u4e2a\u670d\u52a1\n\n1\u3001\u521b\u5efa\u5bb9\u5668\u65f6\uff1akubelet\u8c03\u7528`dockerDaemon`\u53d1\u8d77\u521b\u5efa\u5bb9\u5668\u8bf7\u6c42\uff0c\u7136\u540e\u7531`containerd`\u63a5\u6536\u5e76\u521b\u5efa`containerd-shim`\uff0c`containerd-shim`\u5373\u5bb9\u5668\u5185\u76840\u53f7\u8fdb\u7a0b\u3002\u6240\u4ee5\u5b9e\u9645\u7684\u521b\u5efa\u5bb9\u5668\u3001\u5bb9\u5668\u5185\u6267\u884c\u6307\u4ee4\u7b49\u90fd\u662f\u6b64\u8fdb\u7a0b\u5728\u505a\n\n2\u3001\u540c\u65f6\uff0c`containerd-shim`\u5177\u6709\u56de\u6536\u50f5\u5c38\u8fdb\u7a0b\u7684\u529f\u80fd\uff0c\u5bb9\u56681\u53f7\u8fdb\u7a0b\u9000\u51fa\u540e\uff0c\u5185\u6838\u6e05\u7406\u5176\u4e0b\u5b50\u5b59\u8fdb\u7a0b\uff0c\u8fd9\u4e9b\u5b50\u5b59\u8fdb\u7a0b\u88ab`containerd-shim`\u6536\u517b\u5e76\u6e05\u7406\u3002 \u6ce8\u610f\uff1a\u5982\u679c1\u53f7\u8fdb\u7a0b\u4e0d\u88abKill\uff0c\u90a3\u4e48\u5176\u4e0b\u8fdb\u7a0b\u5982\u679c\u6709\u50f5\u5c38\u8fdb\u7a0b\uff0c\u662f\u65e0\u6cd5\u88ab\u5904\u7406\u7684\u3002\u6240\u4ee5\u7528\u6237\u5f00\u53d1\u7684\u5bb9\u5668\u9996\u8fdb\u7a0b\u8981\u6ce8\u610f\u56de\u6536\u9000\u51fa\u8fdb\u7a0b\u3002\n\nps: \u5728\u6240\u6709\u5bb9\u5668\u90fd\u6e05\u7406\u540e\uff0ck8s\u4e2d\u7684pod\u4e5f\u5c31\u88ab\u5220\u9664\u4e86\u3002 <\/code><\/pre>\n<p>\u6240\u4ee5\u8bf4\uff0c\u4f60\u8981\u77e5\u9053\u7684\u662f\uff0c\u5373\u4fbf\u5bb9\u5668\u5185\u76841\u53f7\u8fdb\u7a0b\u6ca1\u6709\u56de\u6536\u50f5\u5c38\u513f\u5b50\u7684\u80fd\u529b\uff0c0\u53f7\u8fdb\u7a0b\u662f\u4e3a\u5176\u515c\u5e95\u7684\u3002<\/p>\n<p>\u800c\u6211\u4eec\u63a5\u4e0b\u6765\u8981\u8ba8\u8bba\u7684\u4e0d\u662f\u5bb9\u5668\u51851\u53f7\u8fdb\u7a0b\u6302\u6389\u7684\u60c5\u51b5\uff0c\u800c\u662f\u8981\u8ba8\u8bba\u57281\u53f7\u8fdb\u7a0b\u6d3b\u7740\u7684\u60c5\u51b5\u4e0b\uff0c\u5b83\u82e5\u6ca1\u6709\u56de\u6536\u50f5\u5c38\u8fdb\u7a0b\u7684\u80fd\u529b\u5bb9\u5668\u5185\u4f1a\u4ea7\u751f\u4f55\u79cd\u73b0\u8c61\uff0c\u5e94\u8be5\u5982\u4f55\u5904\u7406\u3002\u542c\u61c2\u4e86\u6ca1\u6709\uff0c\u4e0d\u662f\u7c97\u9c81\u5730\u76f4\u63a5\u5e72\u6389\u5bb9\u5668\u6765\u56de\u6536\u4e00\u5207\uff0c\u8fd9\u64cd\u4f5c\u8c01\u90fd\u4f1a\u3002<\/p>\n<p>\u6211\u4eec\u7528python\u89e3\u91ca\u5668\u4f5c\u4e3a1\u53f7\u8fdb\u7a0b\u6765\u6d4b\u8bd5\uff08\u5f3a\u8c03\uff0cpython\u89e3\u91ca\u5668\u4e0ebash\u89e3\u91ca\u4e00\u6837\u90fd\u5177\u5907\u5b9a\u671f\u56de\u6536\u50f5\u5c38\u513f\u5b50\u7684\u529f\u80fd\uff0c\u4f46\u662f\u6211\u4eec\u518d\u6b21\u7528sleep\u5c06python\u7236\u8fdb\u7a0b\u505c\u4f4f\uff0c\u5b83\u4e0d\u52a8\u5f39\u4e86\u4e5f\u5c31\u4e0d\u4f1a\u53d1\u8d77\u56de\u6536\u4e86\uff0c\u6211\u4eec\u4e5f\u5c31\u80fd\u770b\u5230\u50f5\u5c38\u513f\u5b50\u4e86\uff09<\/p>\n<pre><code class=\"language-bash\"># 1\u3001\u521b\u5efa\u5de5\u4f5c\u76ee\u5f55\nmkdir \/test\ncd \/test\n\n# 2\u3001\u521b\u5efa\u811a\u672c\u6587\u4ef6run1.sh\ncat &gt;&gt; test.py &lt;&lt; EOF\n#coding:utf-8\nfrom multiprocessing import Process\nimport os\nimport time\n\ndef task1(n):\n    print(&quot;\u513f\u5b50,PID:%s PPID:%s&quot; %(os.getpid(),os.getppid()))\n    pp1=Process(target=task2,args=(10,))\n    pp2=Process(target=task2,args=(10,))\n    pp3=Process(target=task2,args=(10,))\n    pp1.start()\n    pp2.start()\n    pp3.start()\n    time.sleep(n)\n\ndef task2(n):\n    print(&quot;\u5b59\u5b50,PID:%s PPID:%s&quot; %(os.getpid(),os.getppid()))\n    time.sleep(n)\n\nif __name__ == &quot;__main__&quot;:\n    p=Process(target=task1,args=(10000,))\n    p.start()\n\n    print(&quot;\u7238\u7238,PID: %s&quot; %os.getpid())\n    time.sleep(10000)\n\nEOF\n\n# 3\u3001\u521b\u5efadockerfile\ncat &gt; dockerfile &lt;&lt; EOF\nFROM centos:7\n\nADD test.py \/opt\nCMD python \/opt\/test.py\n\nEOF\n\n# 4\u3001\u6784\u5efa\u955c\u50cf\u5e76\u8fd0\u884c\ndocker build -t test_defunct:v1 .\/\ndocker run -d --name test1 test_defunct:v1\n\n# 5\u3001\u8fdb\u5165\u5bb9\u5668\u4f1a\u53d1\u73b0\u6709\u50f5\u5c38\u8fdb\u7a0b\u4ea7\u751f\uff1a \u56e0\u4e3a1\u53f7\u8fdb\u7a0b\u4e00\u76f4sleep\u5728\u539f\u5730\uff0c\u6839\u672c\u6ca1\u6709\u673a\u4f1a\u53bb\u56de\u6536\u50f5\u5c38\u7684\u513f\u5b50\uff0c\u5982\u6b64\uff0c\u6548\u679c\u5c31\u6a21\u62df\u51fa\u6765\u4e86\n[root@test01 test]# docker exec -ti test1 sh\nsh-4.2# ps -ef\nUID         PID   PPID  C STIME TTY          TIME CMD\nroot          1      0  0 07:50 ?        00:00:00 python \/opt\/test.py\nroot          7      1  0 07:50 ?        00:00:00 python \/opt\/test.py\nroot          8      7  0 07:50 ?        00:00:00 [python] &lt;defunct&gt;\nroot          9      7  0 07:50 ?        00:00:00 [python] &lt;defunct&gt;\nroot         10      7  0 07:50 ?        00:00:00 [python] &lt;defunct&gt;\nroot         11      0  0 07:50 pts\/0    00:00:00 sh\nroot         18     11  0 07:51 pts\/0    00:00:00 ps -ef\n\n\u6b64\u65f6\u4f60\u662f\u65e0\u6cd5\u6740\u6b7b\u90a3\u4e09\u4e2a\u50f5\u5c38\u7684\uff0c\u90a3\u6211\u4eec\u6740\u6b7b\u4ed6\u4eec\u7684\u7239\uff0c\u5373pid\u4e3a7\u7684\u8fdb\u7a0b\nsh-4.2# kill -9 7\nsh-4.2# ps -ef\nUID         PID   PPID  C STIME TTY          TIME CMD\nroot          1      0  0 07:50 ?        00:00:00 python \/opt\/test.py\nroot          7      1  0 07:50 ?        00:00:00 [python] &lt;defunct&gt;\nroot          8      1  0 07:50 ?        00:00:00 [python] &lt;defunct&gt;\nroot          9      1  0 07:50 ?        00:00:00 [python] &lt;defunct&gt;\nroot         10      1  0 07:50 ?        00:00:00 [python] &lt;defunct&gt;\nroot         11      0  0 07:50 pts\/0    00:00:00 sh\nroot         19     11  0 07:52 pts\/0    00:00:00 ps -ef\n\n\u6b64\u65f6\u4f60\u4f1a\u53d1\u73b0\u4e24\u4e2a\u975e\u5e38\u6709\u8da3\u7684\u73b0\u8c61\n1\u3001\u53c8\u591a\u4e00\u4e2a\u50f5\u5c38\u8fdb\u7a0b\n2\u3001pid\u4e3a7\u30018\u30019\u300110\u7684\u8fdb\u7a0b\u7684ppid\u90fd\u53d8\u6210\u4e861\uff0c\u4e5f\u5c31\u662f\u8bf4\u4ed6\u4eec\u90fd\u88ab1\u53f7\u8fdb\u7a0b\u6536\u517b\u4e86\n\n\u5f88\u7b80\u5355\uff0c\u5f53\u6211\u4eec\u6740\u6b7bpid\u4e3a7\u7684\u8fdb\u7a0b\u7684\u65f6\u5019\uff0c\u5b83\u7239\u4e5f\u5c31\u662f1\u53f7\u8fdb\u7a0b\u5728\u539f\u5730sleep\u5462\uff0c\u5e76\u4e0d\u4f1a\u56de\u6536\u5b83\uff0c\u6240\u4ee5\u5b83\u505c\u7559\u5728\u50f5\u5c38\u72b6\u6001\n\u800cpid\u4e3a7\u7684\u8fdb\u7a0b\u4e00\u65e6\u6495\u6389\uff0c\u5b83\u7684\u4e09\u4e2a\u50f5\u5c38\u513f\u5b50\u4eec\u5c31\u6210\u4e86\u5b64\u513f\uff0c\u81ea\u7136\u4f1a\u88abpid\u4e3a1\u7684\u8fdb\u7a0b\u6536\u517b\uff0c\u518d\u8bf4\u4e00\u53e5\uff0c\u8fd9\u91cc\u7684pid\u4e3a1\u7684\u8fdb\u7a0b\u88absleep\u4f4f\u4e86\uff0c\u80af\u5b9a\n\u4e0d\u4f1a \u56de\u6536\u4ed6\u4eec\uff0c\u4e8e\u662f\u5b83\u4eec\u4e09\u4e5f\u6b8b\u7559\u7740\uff0c\u8fd9\u5c31\u662f\u4f60\u770b\u5230\u76844\u4e2a\u50f5\u5c38\u8fdb\u7a0b\n\n\u6700\u540e\uff0c\u4e0d\u80fd\u518d\u6740\u4e86\uff0c\u800c\u4e14\u4f60kill -9 1\u4e5f\u662f\u65e0\u6548\u7684\uff0c1\u53f7\u8fdb\u7a0b\u662f\u65e0\u6cd5\u88ab\u5f3a\u5236\u6740\u6b7b\u7684\uff0c\u8fd9\u4e00\u70b9\u6211\u4eec\u540e\u9762\u518d\u8bf4\u3002<\/code><\/pre>\n<h2>3.1 \u5982\u4f55\u770b\u5f85\u5bb9\u5668\u5185\u7684\u50f5\u5c38\u8fdb\u7a0b\u53ca\u89e3\u51b3\u65b9\u6848<\/h2>\n<p>\u57282.2 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bomb\u7684\u884c\u4e3a\u3002fork bomb\u662f\u9ed1\u5ba2\u653b\u51fb\u884c\u4e3a\u7684\u4e00\u79cd\uff0c\u6307\u7684\u662f\u4e0d\u65ad\u521b\u5efa\u65b0\u8fdb\u7a0b\u76f4\u5230\u5360\u6ee1\u6574\u4e2a\u4e3b\u673a\u7684pid\u53f7\u4e3a\u6b62\uff0c\u6b64\u65f6\uff0c\u8be5\u4e3b\u673a\u4fbf\u65e0\u6cd5\u518d\u521b\u5efa\u4efb\u4f55\u65b0\u8fdb\u7a0b\uff0c\u5bbf\u4e3b\u673a\u53ca\u5176\u4e0a\u8fd0\u884c\u7684\u6240\u6709\u5bb9\u5668\u90fd\u53d7\u5230\u5f71\u54cd\u3002<\/p>\n<p>\u7efc\u4e0a\uff0c\u4e0d\u7ba1\u5bb9\u5668\u662f\u6b63\u5e38\u7684\u4e0d\u65ad\u4ea7\u751f\u65b0\u7684\u8fdb\u7a0b\uff0c\u8fd8\u662f\u8bf4\u56e0\u4e3a\u51fa\u73b0bug\u4e0d\u65ad\u7d2f\u79ef\u50f5\u5c38\u8fdb\u7a0b\uff0c\u90fd\u662f\u4e00\u79cd\u4e0d\u5408\u7406\u5730\u3001\u65e0\u8282\u5236\u5730\u6d88\u8017\u5bbf\u4e3b\u673apid\u8d44\u6e90\u7684\u884c\u4e3a\uff0c\u5982\u4f55\u89e3\u51b3\u5462\uff1f\u6709\u4e24\u5927\u65b9\u5f0f<\/p>\n<ul>\n<li>\n<p>1\u3001\u7ad9\u5728\u5bb9\u5668\u5916\u7684\u89d2\u5ea6\uff0c\u4ece\u6839\u672c\u4e0a\u9650\u5236\u4f4f\u4e00\u4e2a\u5bb9\u5668\u53ef\u7528\u7684pid\u6570\u76ee\uff0c\u65e0\u8bba\u4f60\u662f\u6b63\u5e38\u4ea7\u751f\u8fdb\u7a0b\uff0c\u8fd8\u662f\u51fa\u4e86bug\u4e0d\u65ad\u7d2f\u79ef\u50f5\u5c38\u8fdb\u7a0b\uff0c\u7edf\u7edf\u4e0d\u5141\u8bb8\u65e0\u9650\u5360\u7528pid\u53f7\uff0c\u5177\u4f53\u64cd\u4f5c\u6211\u4eec\u53ef\u4ee5\u5728\u5bbf\u4e3b\u673a\u4e0a\u914d\u7f6ePID  CGROUP\u6765\u9650\u5236\u6bcf\u4e2a\u5bb9\u5668\u7684\u6700\u5927\u8fdb\u7a0b\u6570\u76ee<\/p>\n<\/li>\n<li>\n<p>2\u3001\u7ad9\u5728\u5bb9\u5668\u5185\u7684\u89d2\u5ea6\uff0c<\/p>\n<ul>\n<li>\uff081\uff09\u3001\u5982\u679c\u4f60\u662f\u4ee3\u7801\u7684\u5f00\u53d1\u8005\uff0c\u90a3\u4e48\u4f60\u5e94\u8be5\u5c3d\u91cf\u4fee\u6b63\u4f60\u6240\u7f16\u5199\u4ee3\u7801\u7684\u903b\u8f91\uff0c\u8ba9\u4f60\u7684\u4e3b\u8fdb\u7a0b\u80fd\u591f\u5b9a\u671f\u53d1\u8d77\u56de\u6536\u50f5\u5c38\u8fdb\u7a0b\u7684\u64cd\u4f5c<\/li>\n<\/ul>\n<pre><code class=\"language-bash\"> \u9488\u5bf92.2\u5c0f\u8282\u7684\u6848\u5217\n  \uff081\uff09\u6211\u4eec\u53ef\u4ee5\u53bb\u67e5\u770bp1.join()\u7684\u4ee3\u7801\uff0c\u91cc\u9762\u6709\u4e00\u4e2a\u5173\u4e8ewait\u7684\u8c03\u7528\uff0c\u5728\u4e3b\u8fdb\u7a0b\u91cc\u8c03\u7528p1.join()\u7684\u76ee\u7684\u5c31\u662f\u7b49\u5b50\u8fdb\u7a0b\u6302\u6389\u540e\u800c\u56de\u6536\u5b83\u7684\u5c38\u4f53\uff0c\u6240\u4ee5python\u4ee3\u7801\u591a\u8fdb\u7a0b\u7f16\u7a0b\uff0c\u5728\u4e3b\u8fdb\u7a0b\u91cc\u5efa\u8bae\u5728\u4e3b\u8fdb\u7a0b\u91cc\u4e00\u4e2a\u4e2ajoin\u5b50\u8fdb\u7a0b\n  \uff082\uff09\u800c\u4e14\u5373\u4fbf\u4f60\u6ca1\u6709\u6267\u884cp.join\uff08\uff09,\u53ea\u8981\u4f60\u7684\u4e3b\u8fdb\u7a0b\u5728\u8fd0\u884c\u7740\uff0c\u5b83\u4e5f\u4f1a\u5b9a\u671f\u53d1\u8d77\u56de\u6536\u50f5\u5c38\u8fdb\u7a0b\u7684\u64cd\u4f5c\uff0c\u6015\u5c31\u6015\u4f60\u65e2\u6ca1\u6709\u8c03\u7528join\u65b9\u6cd5\uff0c\u8fd8\u8ba9\u4e3b\u8fdb\u7a0b\u8fdb\u5165\u4e86\u7c7b\u4f3csleep\u4e00\u6837\u7684\u963b\u585e\u72b6\u6001\uff0c\u90a3\u50f5\u5c38\u8fdb\u7a0b\u7684\u72b6\u6001\u5c31\u6b8b\u7559\u4f4f\u4e86  \n  \u4ee5\u4e0a\u4e24\u70b9\u90fd\u662f\u5728\u7f16\u5199python\u7a0b\u5e8f\u65f6\u9700\u8981\u6ce8\u610f\u5904\u7406\u597d\u7684\u4ee3\u7801\u903b\u8f91\uff0c\u4ee5\u6b64\u6765\u907f\u514d\u50f5\u5c38\u8fdb\u7a0b\u7684\u6b8b\u7559<\/code><\/pre>\n<ul>\n<li>\uff082\uff09\u3001\u5982\u679c\u4f60\u53ea\u662f\u4ee3\u7801\u7684\u7ef4\u62a4\u8005\uff0c\u78b0\u5230\u4e86\u4f1a\u6b8b\u7559\u50f5\u5c38\u8fdb\u7a0b\u7684\u8f6f\u4ef6\uff0c\u90a3\u610f\u5473\u7740\u8be5\u8f6f\u4ef6\u7684\u4e3b\u8fdb\u7a0b\u6ca1\u6709\u6216\u8005\u6ca1\u505a\u597d\u56de\u6536\u50f5\u5c38\u8fdb\u7a0b\u7684\u5de5\u4f5c\uff0c\u4f60\u9700\u8981\u5728\u5bb9\u5668\u5185\u5f15\u5165\u4e00\u4e2a\u5177\u5907\u56de\u6536\u50f5\u5c38\u8fdb\u7a0b\u80fd\u529b\u7684\u8fdb\u7a0b\u4f5c\u4e3a1\u53f7\u8fdb\u7a0b\uff0c\u5c31\u597d\u50cf\u64cd\u4f5c\u7cfb\u7edf\u62e5\u6709init\u8fdb\u7a0b\u4e00\u6837\uff0c\u5982\u6b64\uff0c\u5f53\u50f5\u5c38\u8fdb\u7a0b\u4ea7\u751f\u65f6\uff0c\u4f60\u8fd8\u53ef\u4ee5\u6740\u6389\u5b83\u7684\u7236\u8fdb\u7a0b\u4e4b\u540e\u8be5\u50f5\u5c38\u4f1a\u88ab1\u53f7\u8fdb\u7a0b\u81ea\u52a8\u63a5\u7ba1\u5e76\u56de\u6536<\/li>\n<\/ul>\n<pre><code class=\"language-bash\">\u6709\u65f6\u5019\u7ad9\u5728\u7a0b\u5e8f\u903b\u8f91\u6216\u67b6\u6784\u7684\u89d2\u5ea6\uff0c\u6b8b\u7559\u50f5\u5c38\u8fdb\u7a0b\u662f\u65e0\u6cd5\u907f\u514d\u7684\uff0c\u90a3\u4e48\u5c31\u53ea\u80fd\u4e3a\u5bb9\u5668\u5f15\u5165\u4e00\u4e2a\u53ef\u4ee5\u5b9a\u671f\u56de\u6536\u50f5\u5c38\u8fdb\u7a0b\u7684\u8fdb\u7a0b\u4f5c\u4e3a\u5bb9\u5668\u76841\u53f7\u8fdb\u7a0b\uff0c\u5e76\u4e14\u8be5\u8fdb\u7a0b\u8981\u6709\u80fd\u591f\u6267\u884c\u4f60\u539f\u6765\u4e3b\u8fdb\u7a0b\u4ee3\u7801\u7684\u80fd\u529b\u624d\u884c\uff0c\u5982\u6b64\uff0c\u4f60\u539f\u6765\u7684\u4e3b\u8fdb\u7a0b\u624d\u80fd\u88ab\u5176\u7ba1\u7406\u561b\n\n\u8bf4\u9053\u4e3a\u5bb9\u5668\u5b9a\u5236\u4e00\u4e2a1\u53f7\u8fdb\u7a0b\uff0c\u5177\u4f53\u5b9e\u53ef\u4ee5\u6709\u5f88\u591a\u79cd\uff0c\u6211\u4eec\u5217\u4e3e\u4e86\u5982\u4e0b\u4e24\u79cd\uff0c\u7b2c\u4e00\u79cd\u53ea\u662f\u4e3a\u4e86\u505a\u94fa\u57ab\u8f85\u52a9\u5927\u5bb6\u7406\u89e3\uff0c\u5e76\u4e0d\u63a8\u8350\uff0c\u7b2c\u4e8c\u79cd\u624d\u662f\u771f\u6b63\u63a8\u8350\u7684\u65b9\u6848\u3002\u770b\u5b8c\u65b9\u6848\u4e00\u624d\u80fd\u886c\u6258\u51fa\u65b9\u6848\u4e8c\u7684\u5b8c\u5584\n\n- \u65b9\u6848\u4e00\u3001bash\u89e3\u91ca\u5668\uff1a\u5728linux\u7cfb\u7edf\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u4efb\u610f\u547d\u4ee4\uff08\u5f53\u7136\u5305\u62ec\u4f60\u539f\u672c\u7684\u4e3b\u8fdb\u7a0b\uff09\u653e\u5230\u4e00\u4e2abash\u811a\u672c\u91cc\uff0c\u7136\u540e\u7528bash\u89e3\u91ca\u5668\u6267\u884c\uff0c\u5982\u6b64bash\u5c31\u6210\u4e86\u5bb9\u5668\u91cc\u76841\u53f7\u8fdb\u7a0b\uff0c\u4f60\u539f\u672c\u7684\u4e3b\u8fdb\u7a0b\u5c31\u6210\u4e86\u5b83\u7684\u5b50\u8fdb\u7a0b\u53d7\u5176\u7ba1\u7406\uff0c\u5e76\u4e14bash\u662f\u5177\u5907\u5b9a\u671f\u56de\u6536\u50f5\u5c38\u8fdb\u7a0b\u7684\u80fd\u529b\u7684\n\n- \u65b9\u6848\u4e8c\u3001tini\uff1a\u8fd9\u662f\u4e00\u4e2a\u5f00\u6e90\u9879\u76ee\uff0ctini\u662f\u4e00\u4e2a\u66ff\u4ee3\u5e9e\u5927\u590d\u6742\u7684systemd\u4f53\u7cfb\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u662f\u4e00\u4e2a\u6700\u5c0f\u5316init\u7cfb\u7edf\uff0c\u4e13\u95e8\u9002\u7528\u4e8e\u5145\u5f53\u5bb9\u5668\u5185\u76841\u53f7\u8fdb\u7a0b\uff0c\u5bb9\u5668\u5185\u6240\u6709\u5176\u4ed6\u8fdb\u7a0b\u90fd\u53d7\u5176\u7ba1\u7406\u3002\n\ntini\u547d\u4ee4\u96c6\u6210\u4e86\u7c7b\u4f3c\u64cd\u4f5c\u7cfb\u7edfinit\u7684\u529f\u80fd\uff0c\u6240\u4ee5\uff0ctini\u4e0d\u4ec5\u5177\u5907\u5b9a\u671f\u53d1\u8d77\u7cfb\u7edf\u8c03\u7528\u56de\u6536\u50f5\u5c38\u513f\u5b50\u7684\u80fd\u529b\uff0c\u8fd8\u5177\u5907\u4fe1\u53f7\u8f6c\u53d1\u7684\u80fd\u529b\uff0c\n\u6bd4\u5982\u4f60\u60f3tini\u53d1\u9001\u4fe1\u53f7\uff0c\u90a3\u4e48\u5b83\u4e5f\u4f1a\u5411\u5b83\u81ea\u5df1\u7684\u5b50\u8fdb\u7a0b\u53d1\u9001\u540c\u6837\u7684\u4fe1\u53f7\uff0c\u8fd9\u5728\u5e73\u6ed1\u5173\u95ed\u4fdd\u8bc1\u8d44\u6e90\u6b63\u5e38\u56de\u6536\u7684\u64cd\u4f5c\u975e\u5e38\u6709\u7528\u3002\n\n\u4e86\u89e3tini\n  tini\u9879\u76ee\u5730\u5740\uff1ahttps:\/\/github.com\/krallin\/tini\u3002\n\n  tini\u662f\u5982\u4f55\u5b9a\u671f\u56de\u6536\u50f5\u5c38\u8fdb\u7a0b\u7684\uff1f\n  # 1\u3001\u5173\u4e8ewait\u4e0ewaitpid\n  - wait() \u7cfb\u7edf\u8c03\u7528\u662f\u4e00\u4e2a\u963b\u585e\u7684\u8c03\u7528\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u5982\u679c\u6ca1\u6709\u5b50\u8fdb\u7a0b\u662f\u50f5\u5c38\u8fdb\u7a0b\u7684\u8bdd\uff0c\u8fd9\u4e2a\u8c03\u7528\u5c31\u4e00\u76f4\u4e0d\u4f1a\u8fd4\u56de\uff0c\u90a3\u4e48\u6574\u4e2a\u8fdb\u7a0b\u5c31\u4f1a\u88ab\u963b\u585e\u4f4f\uff0c\u800c\u4e0d\u80fd\u53bb\u505a\u522b\u7684\u4e8b\u4e86\u3002\n\n  - Linux \u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7c7b\u4f3c\u7684\u7cfb\u7edf\u8c03\u7528waitpid()\uff0c\u8fd9\u4e2a\u8c03\u7528\u7684\u53c2\u6570\u66f4\u591a\u3002\u5176\u4e2d\u5c31\u6709\u4e00\u4e2a\u53c2\u6570 WNOHANG\uff0c\u5b83\u7684\u542b\u4e49\u5c31\u662f\uff0c\u5982\u679c\u5728\u8c03\u7528\u7684\u65f6\u5019\u6ca1\u6709\u50f5\u5c38\u8fdb\u7a0b\uff0c\u90a3\u4e48\u51fd\u6570\u5c31\u9a6c\u4e0a\u8fd4\u56de\u4e86\uff0c\u800c\u4e0d\u4f1a\u50cf wait() \u8c03\u7528\u90a3\u6837\u4e00\u76f4\u7b49\u5f85\u5728\u90a3\u91cc\u3002\n\n  # 2\u3001\u5728tini\u91cc\u4f1a\u4e0d\u65ad\u5728\u8c03\u7528\u5e26WNOHANG \u53c2\u6570\u7684 waitpid()\uff0c\u901a\u8fc7\u8fd9\u4e2a\u65b9\u5f0f\u6e05\u7406\u5b83\u7684\u50f5\u5c38\u513f\u5b50\uff0c\u6ce8\u610f\u4e86\uff0c\u53ea\u80fd\u662f\u513f\u5b50\n\n===>\u8bb0\u5f55\u4e00\u4e0b\uff0c\u5199\u4f5c\u65f6\u7684\u5fc3\u8def\u5386\u7a0b\uff0c\u4e8b\u5b9e\u8bc1\u660e\u6700\u540e\u7684\u63a8\u65ad\u662f\u6b63\u786e\u7684\uff0c\u8bfb\u8005\u4e5f\u53ef\u4ee5\u8fd9\u4e48\u505a\uff0c\u5148\u63d0\u51fa\u8bbe\u60f3\uff0c\u7136\u540e\u53bb\u9a8c\u8bc1\u6216\u8005\u63a8\u7ffb\u81ea\u5df1\u7684\u8bbe\u60f3\uff0c\u8fd9\u662f\u4e00\u4e2a\u4e0d\u9519\u7684\u5b66\u4e60\u65b9\u5f0f\uff01\n\n\u53ef\u80fd\u6211\u4eec\u4e4b\u524d\u5904\u7406\u7684\u65b9\u5f0f\u90fd\u662f\u6267\u884c\u8fd0\u884c\u4e00\u6761java\u547d\u4ee4\u4f5c\u4e3a\u5bb9\u5668\u76841\u53f7\u8fdb\u7a0b\uff0c\u8be51\u53f7\u8fdb\u7a0b\u53ef\u80fd\u4e0d\u4f1a\u53d1\u8d77\u56de\u6536\u50f5\u5c38\u513f\u5b50\u7684\u64cd\u4f5c\n\u4f46\u5b9e\u9a8c\u8fc7\u7a0b\u4e2d\u53d1\u73b0\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u8fd9\u6761java\u547d\u4ee4\u653e\u5230\u4e00\u4e2abash\u811a\u672c\u91cc\uff0c\u7136\u540e\u8fd0\u884cbash\u6765\u542f\u52a8\uff0cbash\u4f1a\u5b9a\u671f\u53d1\u8d77\u56de\u6536\u50f5\u5c38\u513f\u5b50\u7684\u64cd\u4f5c\n\n\u6211\u4eec\u53ef\u4ee5\u4e00\u5c42\u5c42\u5f80\u4e0a\u6740\uff0c\u76f4\u5230\u6700\u540e\u5269bash\u8fdb\u7a0b\u5c31\u884c\n\n\u96be\u9053\u8bf4tini\u7684\u6838\u5fc3\u4f5c\u7528\u5728\u4e8e\u4fe1\u53f7\u8f6c\u53d1\u300b\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\n\n\u901a\u8fc7Tini\uff0c <code>SIGTERM<\/code> \u53ef\u4ee5\u7ec8\u6b62\u8fdb\u7a0b\uff0c\u4e0d\u9700\u8981\u4f60\u660e\u786e\u5b89\u88c5\u4e00\u4e2a\u4fe1\u53f7\u5904\u7406\u5668\n\n\u6700\u540e\u786e\u8ba4\uff0c\u786e\u5b9e\u5982\u6b64\uff0c\u5982\u679c\u53ea\u662f\u7ad9\u5728\u56de\u6536\u50f5\u5c38\u513f\u5b50\u7684\u89d2\u5ea6\uff0c\u6211\u4eec\u7528bash\u505a\u5bb9\u5668\u76841\u53f7\u8fdb\u7a0b\u5c31\u5b8c\u5168\u53ef\u4ee5\uff0c\u800c\u4e14\u5f88\u591a\u8bed\u8a00\u6bd4\u5982python\u89e3\u91ca\u672c\u8eab\u5c31\u6709\u5b9a\u671f\u56de\u6536\u50f5\u5c38\u513f\u5b50\u7684\u529f\u80fd\uff0c\u4f46\u9664\u6b64\u4e4b\u5916\u8fd8\u6709\u4fe1\u53f7\u8f6c\u53d1\u4fdd\u8bc1\u5e73\u6ed1\u5173\u95ed\u7684\u9700\u6c42\uff0c\u5982\u6b64\u770b\u6765\u53ea\u6709tini\u517c\u5177\u4e8c\u8005\uff0c\u80af\u5b9a\u662f\u4e00\u4e2a\u6700\u4f18\u9009\u62e9<\/code><\/pre>\n<\/li>\n<\/ul>\n<p>\u4e0b\u9762\u6211\u4eec\u5c31\u6765\u5206\u522b\u4ecb\u7ecd\u5728\u5bb9\u5668\u5916\u4e0e\u5bb9\u5668\u5185\u7684\u5904\u7406\u65b9\u5f0f<\/p>\n<h1>\u56db \u5728\u5bb9\u5668\u5916\u4f7f\u7528pids CGROUP<\/h1>\n<p>\u7ad9\u5728\u5bb9\u5668\u5916\u7684\u89d2\u5ea6\uff0c\u5728\u5bbf\u4e3b\u673a\u4e0a\u914d\u7f6ePID  CGROUP\u6765\u9650\u5236\u6bcf\u4e2a\u5bb9\u5668\u7684\u6700\u5927\u8fdb\u7a0b\u6570\u76ee\uff0c\u9632\u6b62\u5bb9\u5668\u7d2f\u79ef\u8fdb\u7a0b\u6570\u8fc7\u591a\u6d88\u8017\u5b8c\u5bbf\u4e3b\u673a\u7684pid\u8d44\u6e90<\/p>\n<pre><code class=\"language-bash\"># \u5728linux\u7cfb\u7edf\u4e2d\u53ef\u4ee5\u521b\u5efa\u7684\u8fdb\u7a0b\u6570\u76ee\u662f\u6709\u9650\u7684\uff0c\u53ef\u4ee5\u5728\u5bbf\u4e3b\u673a\u6267\u884c\u5982\u4e0b\u547d\u4ee4\u67e5\u770b\uff0c\u5982\u679c\u8d85\u8fc7\u4e86\u8be5\u503c\uff0c\u5219\u65e0\u6cd5\u542f\u52a8\u4efb\u4f55\u65b0\u8fdb\u7a0b\uff0c\u4efb\u4f55\u547d\u4ee4\u4e5f\u90fd\u65e0\u6cd5\u6267\u884c\uff0c\u56e0\u4e3a\u6267\u884c\u547d\u4ee4\u4e5f\u90fd\u662f\u5728\u4ea7\u751f\u8fdb\u7a0b\uff0c\u867d\u7136\u6267\u884c\u5b8c\u6bd5\u5c31\u9500\u6bc1\u8be5\u8fdb\u7a0b\uff0c\u4f46\u56e0\u4e3a\u8fdb\u7a0b\u6570\u8fbe\u5230\u4e0a\u9650\uff0c\u4f60\u662f\u65e0\u6cd5\u5f00\u542f\u4efb\u4f55\u65b0\u8fdb\u7a0b\u7684\ncat \/proc\/sys\/kernel\/pid_max \n\n\u8be5\u503c\u53ef\u8bbe\u7f6e\uff0clinux\u64cd\u4f5c\u7cfb\u7edf\u652f\u6301\u7684\u6700\u5927\u7684pid\u8303\u56f4\u662f0-4194304\u4e2a\n\n\u65e0\u8bba\u5bb9\u5668\u5185\u662f\u6b63\u5e38\u521b\u5efa\u65b0\u8fdb\u7a0b\uff0c\u8fd8\u662f\u56e0\u4e3abug\u800c\u4e0d\u65ad\u7d2f\u79ef\u50f5\u5c38\u8fdb\u7a0b\uff0c\u6211\u4eec\u603b\u5f52\u5e94\u8be5\u5bf9\u5176\u8fdb\u884c\u9650\u5236\uff0c\u4e0d\u80fd\u8ba9\u4e00\u4e2a\u5bb9\u5668\u65e0\u6cd5\u65e0\u5929\u5730\u521b\u5efa\u8fdb\u7a0b\uff0c\u6b64\u65f6\u5c31\u7528\u5230Cgoup\u673a\u5236\uff0c\u5177\u4f53\u662f\u662f\u6307pids Cgroup\uff0c\u4e00\u822cCgroup\u6587\u4ef6\u7cfb\u7edf\u6302\u8f7d\u70b9\u5728\/sys\/fs\/cgroup\/pids\n\n\u6bcf\u521b\u5efa\u4e00\u5bb9\u5668\uff0c\u521b\u5efa\u5bb9\u5668\u7684\u670d\u52a1\u5c31\u4f1a\u5728\u5bbf\u4e3b\u673a\u7684\/sys\/fs\/cgroup\/pids\n# \u5728\u5bbf\u4e3b\u673a\u6267\u884c\n[root@test01 pids]# cd \/sys\/fs\/cgroup\/pids\n[root@test01 pids]# df .\n\u6587\u4ef6\u7cfb\u7edf       1K-\u5757  \u5df2\u7528  \u53ef\u7528 \u5df2\u7528% \u6302\u8f7d\u70b9\ncgroup             0     0     0     - \/sys\/fs\/cgroup\/pids\n\n\u5982\u679c\u662fdocker\u547d\u4ee4\u76f4\u63a5\u542f\u52a8\u7684\u5bb9\u5668\uff0c\u5219\u67e5\u770b\uff0c\u540e\u9762\u8ddf\u7740\u7684id\u53f7\u662f\u7528\u547d\u4ee4docker container ls |grep test2\u67e5\u770b\u5230\u7684\uff0c\u6ce8\u610f\u5fc5\u987b\u662f\u5b58\u6d3b\u7684\u5bb9\u5668\u624d\u53ef\u4ee5\n[root@test01 pids]# ls docker\/67c4f885b2a8e72c7ea7f4b8f7e28f413fdc7a8060881d8fc1a5ff484da801e5\/\ncgroup.clone_children  cgroup.procs       pids.current  tasks\ncgroup.event_control   notify_on_release  pids.max\n\n\u5982\u679c\u662fkubelet\u8c03\u7528\u5bb9\u5668\u5f15\u64ce\u4ea7\u751f\u7684\u5bb9\u5668\uff0c\u5219\u67e5\u770b\uff0c\n[root@test01 pids]# ls system.slice\/data-docker-overlay2-8a0bb1b29a2e51278f278ac5f1e8aa4206ce817b767c908cedbb9d5cb6f7a8f5-merged.mount\/\ncgroup.clone_children  cgroup.procs       pids.current  tasks\ncgroup.event_control   notify_on_release  pids.max\n\n\u53ef\u4ee5df | grep 8a0bb1b29a\u67e5\u770b\u5230\u5bf9\u5e94\u7684\u6302\u8f7d\n\n\u6211\u4eec\u5148\u6253\u5f00\u4e00\u4e2a\u7ec8\u7aef\uff0c\u8fdb\u5165test2\u5bb9\u5668\u5185\uff0c\n[root@test01 ~]# docker exec -ti test2 sh\nsh-4.2# ps aux\nUSER      PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND\nroot        1  0.0  0.0  11692  1332 ?        Ss   05:11   0:00 sh \/opt\/run.sh\nroot       20  0.0  0.0   4400   352 ?        S    05:12   0:00 tail -f \/dev\/null\nroot       34  0.2  0.0  11824  1660 pts\/0    Ss   13:53   0:00 sh\nroot       40  0.0  0.0  51732  1704 pts\/0    R+   13:53   0:00 ps aux\nsh-4.2# \n\u5bb9\u5668\u5185\u76ee\u524d\u603b\u5171\u67093\u4e2a\u8fdb\u7a0b\uff0c\u4e24\u4e2a\u5bb9\u5668\u81ea\u5e26\u7684\uff0c\u4e00\u4e2a\u6211\u4eec\u6267\u884csh\u8fdb\u5165\u5bb9\u5668\u4ea7\u751f\u7684\uff0c\u8fd8\u8981\u4e00\u4e2aps aux\u547d\u4ee4\u7684\u8fdb\u7a0b\u6267\u884c\u5b8c\u6bd5\u540e\u7acb\u523b\u7ed3\u675f\u4e86\uff0c\n\n\u6253\u5f00\u53e6\u5916\u4e00\u4e2a\u4e2d\u65ad\uff0c\u7136\u540e\u4fee\u6539test2\u5bb9\u5668\u7684pid.max\u4e3a3\uff0c\u518d\u8fdb\u5165\u5bb9\u5668\u5c31\u4f1a\u53d1\u73b0\u65e0\u6cd5\u6267\u884c\u4efb\u4f55\u547d\u4ee4\n[root@test01 pids]# pwd\n\/sys\/fs\/cgroup\/pids\n[root@test01 pids]# echo 3 &gt; docker\/67c4f885b2a8e72c7ea7f4b8f7e28f413fdc7a8060881d8fc1a5ff484da801e5\/pids.max \n[root@test01 pids]# \n\n\u7136\u540e\u56de\u5230\u4e0a\u9762\u90a3\u4e2a\u7ec8\u7aef\uff0c\u4f1a\u53d1\u73b0\u4efb\u4f55\u547d\u4ee4\u90fd\u65e0\u6cd5\u6267\u884c\nsh-4.2# ps aux\nsh: fork: retry: No child processes\nsh: fork: retry: No child processes\nsh: fork: retry: No child processes\nsh: fork: retry: No child processes\nsh: fork: Resource temporarily unavailable\nsh-4.2# <\/code><\/pre>\n<p>==============\u300b\u8865\u5145\u5728k8s\u4e2d\u5982\u4f55\u9650\u5236pod\u5185\u7684pid\u6570<\/p>\n<ul>\n<li>\n<p>1\u3001Kubelet \u5f00\u542f PodPidsLimit \u529f\u80fd <\/p>\n<p>Kubernetes \u91cc\u9762\u7684\u6bcf\u4e2a\u8282\u70b9\u90fd\u4f1a\u8fd0\u884c\u4e00\u4e2a\u53eb\u505a Kubelet \u7684\u670d\u52a1\uff0c\u8d1f\u8d23\u8282\u70b9\u4e0a\u5bb9\u5668\u7684\u72b6\u6001\u548c\u751f\u547d\u5468\u671f\uff0c\u6bd4\u5982\u521b\u5efa\u548c\u5220\u9664\u5bb9\u5668\u3002\u6839\u636e Kubernetes \u7684\u5b98\u65b9\u6587\u6863 <a href=\"https:\/\/kubernetes.io\/docs\/concepts\/policy\/pid-limiting\/\">Process ID Limits And Reservations<\/a> \u5185\u5bb9\uff0c\u53ef\u4ee5\u8bbe\u7f6e Kubelet \u670d\u52a1\u7684 <strong>\u2013pod-max-pids<\/strong> \u914d\u7f6e\u9009\u9879\uff0c\u4e4b\u540e\u5728\u8be5\u8282\u70b9\u4e0a\u521b\u5efa\u7684\u5bb9\u5668\uff0c\u6700\u7ec8\u90fd\u4f1a\u4f7f\u7528 Cgroups pid \u63a7\u5236\u5668\u9650\u5236\u5bb9\u5668\u7684\u8fdb\u7a0b\u6570\u91cf\u3002<\/p>\n<p>\u6211\u4eec Kubernetes \u662f\u5728 CentOS 7 \u4e0a\u4f7f\u7528 kubeadm \u90e8\u7f72\u7684 v1.15.9 \u7248\u672c\uff0c\u9700\u8981\u989d\u5916\u8bbe\u7f6e <strong>SupportPodPidsLimit<\/strong> \u7684 feature-gate\uff0c\u5bf9\u5e94\u64cd\u4f5c\u5982\u4e0b\uff08\u5176\u5b83\u53d1\u884c\u7248\u5e94\u8be5\u4e5f\u7c7b\u4f3c\uff09\uff1a<\/p>\n<pre><code class=\"language-bash\"># kubelet \u4f7f\u7528 systemd \u542f\u52a8\u7684\uff0c\u53ef\u4ee5\u901a\u8fc7\u7f16\u8f91 \/etc\/sysconfig\/kubelet\n# \u6dfb\u52a0\u989d\u5916\u7684\u542f\u52a8\u53c2\u6570\uff0c\u8bbe\u7f6e pod \u6700\u5927\u8fdb\u7a0b\u6570\u4e3a 1024\n$ vim \/etc\/sysconfig\/kubelet\nKUBELET_EXTRA_ARGS=\"--pod-max-pids=1024 --feature-gates=\\\"SupportPodPidsLimit=true\\\"\"\n\n# \u91cd\u542f kubelet \u670d\u52a1\n$ systemctl restart kubelet\n\n# \u67e5\u770b\u53c2\u6570\u662f\u5426\u751f\u6548\n$ ps faux | grep kubelet | grep pod-max-pids\nroot     104865 10.5  0.6 1731392 107368 ?      Ssl  11:56   0:30 \/usr\/bin\/kubelet ... --pod-max-pids=10 --feature-gates=SupportPodPidsLimit=true<\/code><\/pre>\n<\/li>\n<li>\n<p>2\u3001\u9a8c\u8bc1 PodPidsLimit<\/p>\n<p>\u901a\u8fc7\u914d\u7f6e Kubelet \u7684 <strong>\u2013pod-max-pids=1024<\/strong> \u9009\u9879\uff0c\u9650\u5236\u4e86\u4e00\u4e2a\u5bb9\u5668\u5185\u5141\u8bb8\u7684\u6700\u5927\u8fdb\u7a0b\u6570\u4e3a 1024 \u4e2a\u3002\u73b0\u5728\u6765\u6d4b\u8bd5\u4e0b\u5982\u679c\u5bb9\u5668\u5185\u4e0d\u65ad fork \u5b50\u8fdb\u7a0b\uff0c\u6570\u76ee\u5230\u8fbe 1024 \u4e2a\u65f6\u4f1a\u89e6\u53d1\u4ec0\u4e48\u884c\u4e3a\u3002<\/p>\n<p>\u53c2\u8003 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Fork_bomb\">Fork bomb<\/a> \u7684\u5185\u5bb9\uff0c\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a pod\uff0c\u4e0d\u65ad fork \u5b50\u8fdb\u7a0b\u3002<\/p>\n<pre><code class=\"language-bash\"># \u521b\u5efa\u666e\u901a\u7684 nginx pod yaml\n$ cat <<EOF > test-nginx.yaml\napiVersion: v1\nkind: Pod\nmetadata:\nname: test-nginx\nspec:\ncontainers:\n- name: nginx\n  image: nginx\nEOF\n\n# \u521b\u5efa\u5230 Kubernetes \u96c6\u7fa4\n$ kubectl apply -f test-nginx.yaml\n\n# \u8fdb\u5165 nginx \u5bb9\u5668\u6a21\u62df fork bomb \n$ kubectl exec -ti test-nginx bash\nroot@test-nginx:\/# bash -c \"fork() { fork | fork &  }; fork\"\nenvironment: fork: retry: Resource temporarily unavailable\nenvironment: fork: retry: Resource temporarily unavailable\nenvironment: fork: retry: Resource temporarily unavailable<\/code><\/pre>\n<p>\u901a\u8fc7\u8fdb\u5165\u4e00\u4e2a nginx \u5bb9\u5668\u91cc\u9762\u4f7f\u7528 bash \u8fd0\u884c fork bomb \u547d\u4ee4\uff0c\u6211\u4eec\u4f1a\u53d1\u73b0\u5f53 fork \u7684\u5b50\u8fdb\u7a0b\u8fbe\u5230\u9650\u5236\u7684\u4e0a\u9650\u6570\u76ee\u540e\uff0c\u4f1a\u62a5 <strong>retry: Resource temporarily unavailable<\/strong> \u7684\u9519\u8bef\uff0c\u8fd9\u4e2a\u65f6\u5019\u518d\u770b\u4e0b\u5bbf\u4e3b\u673a\u7684 fork \u8fdb\u7a0b\u6570\u76ee\u3002<\/p>\n<pre><code class=\"language-bash\"># \u901a\u8fc7\u5728\u5916\u90e8\u5bbf\u4e3b\u673a\u6267\u884c\u4e0b\u9762\u7684\u547d\u4ee4\uff0c\u4f1a\u53d1\u73b0 fork \u7684\u8fdb\u7a0b\u6570\u76ee\u63a5\u8fd1 1024 \u4e2a\n$ ps faux | grep fork | wc -l\n1019<\/code><\/pre>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u7684\u5b9e\u9a8c\uff0c\u53d1\u73b0\u80fd\u591f\u901a\u8fc7\u8bbe\u7f6e Kubelet \u7684 <strong>\u2013pod-max-pids<\/strong> \u9009\u9879\uff0c\u9650\u5236\u5bb9\u5668\u7c7b\u7684\u8fdb\u7a0b\u6570\uff0c\u907f\u514d\u5bb9\u5668\u8fdb\u7a0b\u6570\u4e0d\u65ad\u4e0a\u5347\u6700\u7ec8\u8017\u5c3d\u5bbf\u4e3b\u673a\u8d44\u6e90\uff0c\u62d6\u57ae\u6574\u4e2a\u5bbf\u4e3b\u673a\u7cfb\u7edf\u3002<\/p>\n<p>\u4e0a\u8ff0\u539f\u7406\u8be6\u89c1\u9644\u5f55\u300a\u9644\u5f551\uff1a\u5728k8s\u4e2d\u9650\u5236pod\u7684pid\u6570\u300b<\/p>\n<\/li>\n<\/ul>\n<h1>\u4e94 bash\u4f5c\u4e3a\u5bb9\u5668\u5185\u76841\u53f7\u8fdb\u7a0b<\/h1>\n<p>\u5982\u679c\u53ea\u662f\u7ad9\u5728\u56de\u6536\u50f5\u5c38\u8fdb\u7a0b\u7684\u89d2\u5ea6\uff0cbash\u4e0etini\u90fd\u53ef\u4ee5\u5145\u5f53\u5bb9\u5668\u5185\u76841\u53f7\u8fdb\u7a0b\uff0c\u4f46\u5982\u679c\u662f\u7ad9\u5728\u4e00\u4e2a\u5b8c\u5584\u76841\u53f7\u8fdb\u7a0b\u7684\u89d2\u5ea6\uff0c\u80af\u5b9a\u662f\u63a8\u8350tini\uff0c\u6211\u4eec\u5148\u6765\u6f14\u793a\u4e00\u4e0b\u4f7f\u7528bash\u4f5c\u4e3a\u5bb9\u5668\u5185\u76841\u53f7\u8fdb\u7a0b\uff0c\u8d70\u5b8c\u6574\u4f53\u601d\u8def\u540e\uff0c\u4f60\u4f1a\u5bf9tini\u7684\u5e94\u7528\u6709\u4e00\u4e2a\u66f4\u6e05\u6670\u7684\u8ba4\u77e5\uff0c\u6211\u4eec\u540e\u7eed\u80af\u5b9a\u90fd\u662f\u4f1a\u7528tini\u4f5c\u4e3a1\u53f7\u8fdb\u7a0b<\/p>\n<p>=================\u5148\u6765\u6f14\u793a\u4e00\u4e0b\uff0c\u5c31\u7528\u6211\u4eec\u81ea\u5df1\u7684\u4e3b\u8fdb\u7a0b\u4f5c\u4e3a1\u53f7\u8fdb\u7a0b\u7684\u6548\u679c\uff0c\u4f1a\u53d1\u73b0\u6b8b\u7559\u50f5\u5c38\u8fdb\u7a0b\uff0c\u5e76\u4e14\u4f60\u65e0\u6cd5\u5728\u4e0d\u5173\u95ed\u5bb9\u5668\u7684\u60c5\u51b5\u4e0b\u56de\u6536\u8fd9\u4e9b\u50f5\u5c38<\/p>\n<p>\u5b9e\u9a8c<\/p>\n<pre><code class=\"language-bash\">[root@test01 test1]# cd \/test1\/\n[root@test01 test1]# ls\ndockerfile  run.sh  test.py<\/code><\/pre>\n<p>test.py\u5185\u5bb9\u5982\u4e0b<\/p>\n<pre><code class=\"language-bash\">#coding:utf-8\nfrom multiprocessing import Process\nimport os\nimport time\n\ndef task1(n):\n    print(&quot;\u513f\u5b50,PID:%s PPID:%s&quot; %(os.getpid(),os.getppid()))\n    pp1=Process(target=task2,args=(10,))\n    pp2=Process(target=task2,args=(10,))\n    pp3=Process(target=task2,args=(10,))\n    pp1.start()\n    pp2.start()\n    pp3.start()\n    time.sleep(n)\n\ndef task2(n):\n    print(&quot;\u5b59\u5b50,PID:%s PPID:%s&quot; %(os.getpid(),os.getppid()))\n    time.sleep(n)\n\nif __name__ == &quot;__main__&quot;:\n    p=Process(target=task1,args=(10000,))\n    p.start()\n\n    print(&quot;\u7238\u7238,PID: %s&quot; %os.getpid())\n    time.sleep(10000)<\/code><\/pre>\n<p>\u6211\u4eec\u5148\u7528\u4e3b\u8fdb\u7a0b\uff0c\u5373\u6211\u4eec\u7684python\u7a0b\u5e8f\u4f5c\u4e3a1\u53f7\u8fdb\u7a0b\uff0c\u6765\u770b\u4e0b\u6548\u679c\uff0cdockerfile\u5185\u5bb9\u5982\u4e0b<\/p>\n<pre><code class=\"language-bash\">FROM centos:7\n\nADD test.py \/opt\n\nCMD [&quot;python&quot;,&quot;\/opt\/test.py&quot;]<\/code><\/pre>\n<p>\u5236\u4f5c\u955c\u50cf<\/p>\n<pre><code class=\"language-bash\">[root@test01 test1]# docker build -t t1:v1 .\/<\/code><\/pre>\n<p>\u542f\u52a8<\/p>\n<pre><code class=\"language-bash\">[root@test01 test1]# docker run -d --name test1 t1:v1<\/code><\/pre>\n<p>\u8fc7\u5927\u698210s\u540e\u8fdb\u5165\u5bb9\u5668\u5185\u67e5\u770b\uff0c\u4f1a\u53d1\u73b0\u6709\u4e09\u4e2a\u50f5\u5c38\u8fdb\u7a0b<\/p>\n<pre><code class=\"language-bash\">[root@test01 test1]# docker exec -ti test1 sh\nsh-4.2# ps -ef\nUID         PID   PPID  C STIME TTY          TIME CMD\nroot          1      0  0 03:56 ?        00:00:00 python \/opt\/test.py\nroot          7      1  0 03:56 ?        00:00:00 python \/opt\/test.py\nroot          8      7  0 03:56 ?        00:00:00 [python] &lt;defunct&gt;\nroot          9      7  0 03:56 ?        00:00:00 [python] &lt;defunct&gt;\nroot         10      7  0 03:56 ?        00:00:00 [python] &lt;defunct&gt;\nroot         11      0  0 03:57 pts\/0    00:00:00 sh\nroot         18     11  0 03:57 pts\/0    00:00:00 ps -ef<\/code><\/pre>\n<p>\u6740\u6b7bpid\u4e3a7\u7684\u8fdb\u7a0b\uff0c\u4f60\u4f1a\u53d1\u73b0\u6b8b\u7559\u7684\u50f5\u5c38\u8fdb\u7a0b\u6709\u591a\u4e86\u4e00\u4e2a\uff0c\u73b0\u5728\u4e3a4\u4e2a\u4e86<\/p>\n<pre><code class=\"language-bash\">sh-4.2# kill -9 7\nsh-4.2# ps -ef\nUID         PID   PPID  C STIME TTY          TIME CMD\nroot          1      0  0 03:56 ?        00:00:00 python \/opt\/test.py\nroot          7      1  0 03:56 ?        00:00:00 [python] &lt;defunct&gt;\nroot          8      1  0 03:56 ?        00:00:00 [python] &lt;defunct&gt;\nroot          9      1  0 03:56 ?        00:00:00 [python] &lt;defunct&gt;\nroot         10      1  0 03:56 ?        00:00:00 [python] &lt;defunct&gt;\nroot         11      0  0 03:57 pts\/0    00:00:00 sh\nroot         19     11  0 03:57 pts\/0    00:00:00 ps -ef<\/code><\/pre>\n<p>\u56e0\u4e3a\u4f60\u6740\u6b7b7\u53f7\u8fdb\u7a0b\uff0c\u5b83\u7684\u4e09\u4e2a\u513f\u5b50\u6ca1\u6709\u7239\u4e86\uff0c\u6210\u4e86\u5b64\u513f\uff0c\u4f1a\u88ab1\u53f7\u8fdb\u7a0b\u5f53\u5b64\u513f\u6536\u517b\uff0c\u5982\u4e0a\u6240\u793a\uff0c\u4f46\u662f1\u53f7\u8fdb\u7a0b\u4e3a\u6211\u4eec\u81ea\u5df1\u7684python\u4e3b\u8fdb\u7a0b\u5b83\u5728\u539f\u5730sleep\u5462\u5e76\u4e0d\u4f1a\u56de\u6536\u8fd9\u4ee8\u50f5\u5c38\u513f\u5b50\uff0c\u6240\u4ee5\u5b83\u4e09\u4f9d\u7136\u8fd8\u5728\uff0c\u81f3\u4e8e\u8bf47\u53f7\u8fdb\u7a0b\uff0c\u628a\u5b83\u6740\u6389\u540e\uff0c\u5b83\u7239\u539f\u6765\u5c31\u662f1\u53f7\u8fdb\u7a0b\uff0c\u6ca1\u6709\u56de\u6536\u5b83\uff0c\u81ea\u7136\u5b83\u4e5f\u6210\u4e86\u6b8b\u7559\u7684\u50f5\u5c38\u8fdb\u7a0b<\/p>\n<p>ps\uff1a\u5728\u5bb9\u5668\u5185\u90e8\uff0c\u4f60\u6267\u884ckill -9 1\u662f\u65e0\u6cd5\u6740\u6b7b1\u53f7\u8fdb\u7a0b\u7684\uff0c\u8fd9\u4e00\u70b9\u6211\u4eec\u4e4b\u540e\u518d\u505a\u8be6\u7ec6\u89e3\u91ca<\/p>\n<p>=================\u63a5\u4e0b\u6765\u5148\u6765\u6f14\u793a\u4e00\u4e0b\uff0c\u7528bash\u8fdb\u7a0b\u4f5c\u4e3a\u5bb9\u5668\u51851\u53f7\u8fdb\u7a0b\u7684\u6548\u679c\uff0c\u6b64\u65f6\u4f60\u53ef\u4ee5\u5728\u4e0d\u5173\u95ed\u5bb9\u5668\u7684\u60c5\u51b5\u4e0b\uff0c\u56de\u6536\u50f5\u5c38<\/p>\n<p>\u5177\u4f53\u64cd\u4f5c<\/p>\n<pre><code class=\"language-bash\">[root@test01 test1]# cd \/test1\n[root@test01 test1]# ls # \u65b0\u589e\u4e00\u4e2arun.sh\u7684bash\u811a\u672c\ndockerfile  run.sh  test.py<\/code><\/pre>\n<p>test.py\u7684\u5185\u5bb9\u540c\u4e0a\u9762\u4e00\u6837<\/p>\n<p>run.sh<\/p>\n<pre><code class=\"language-bash\">#!\/bin\/bash\npython \/opt\/test.py\n\n# \u6dfb\u52a0\u8fd9\u4e00\u6837\u662f\u4e3a\u4e86\u9632\u6b62\u4e0a\u9762\u90a3\u4e00\u884c\u8fdb\u7a0b\u88ab\u5e72\u6389\u540e\uff0c\u672c\u8fdb\u7a0b\u8fd8\u6709\u4ee3\u7801\u5728\u8fd0\u884c\u7740\uff0c\u5426\u5219\u5c31\u4e5f\u7ed3\u675f\u4e86\ntail -f \/dev\/null <\/code><\/pre>\n<p>dockerfile<\/p>\n<pre><code class=\"language-bash\">FROM centos:7\n\nADD test.py \/opt    \nADD run.sh \/opt\nCMD sh \/opt\/run.sh\n<\/code><\/pre>\n<p>\u5236\u4f5c\u955c\u50cf\u5e76\u6d4b\u8bd5<\/p>\n<pre><code class=\"language-bash\">docker build -t t2:v2 .\/\ndocker run -d --name test2 t2:v2<\/code><\/pre>\n<p>\u6b64\u65f6\u8fdb\u5165\u5230\u5bb9\u5668\u91cc\u67e5\u770b<\/p>\n<pre><code class=\"language-bash\">[root@test01 test1]# docker exec -ti test2 sh\nsh-4.2# ps -ef\nUID         PID   PPID  C STIME TTY          TIME CMD\nroot          1      0  0 04:57 ?        00:00:00 sh \/opt\/run.sh\nroot          7      1  0 04:57 ?        00:00:00 python \/opt\/test.py\nroot          8      7  0 04:57 ?        00:00:00 python \/opt\/test.py\nroot          9      8  0 04:57 ?        00:00:00 [python] &lt;defunct&gt;\nroot         10      8  0 04:57 ?        00:00:00 [python] &lt;defunct&gt;\nroot         11      8  0 04:57 ?        00:00:00 [python] &lt;defunct&gt;\nroot         20      0  1 04:58 pts\/0    00:00:00 sh\nroot         25     20  0 04:58 pts\/0    00:00:00 ps -ef\nsh-4.2# \n<\/code><\/pre>\n<p>\u5148\u67408\u53f7\u8fdb\u7a0b\uff0c\u4f1a\u56de\u65363\u50f5\u5c38\uff0c\u6b8b\u7559\u4e00\u4e2a\u50f5\u5c38<\/p>\n<pre><code class=\"language-bash\">sh-4.2# kill -9 8\nsh-4.2# ps -ef\nUID         PID   PPID  C STIME TTY          TIME CMD\nroot          1      0  0 04:57 ?        00:00:00 sh \/opt\/run.sh\nroot          7      1  0 04:57 ?        00:00:00 python \/opt\/test.py\nroot          8      7  0 04:57 ?        00:00:00 [python] &lt;defunct&gt;\nroot         20      0  0 04:58 pts\/0    00:00:00 sh\nroot         26     20  0 04:58 pts\/0    00:00:00 ps -ef\nsh-4.2# <\/code><\/pre>\n<p>\u7136\u540e\u67407\uff0c\u7236\u8fdb\u7a0bsh\u4f1a\u56de\u6536\u50f5\u5c387<\/p>\n<pre><code class=\"language-bash\">sh-4.2# kill -9 7\nsh-4.2# ps -ef\nUID         PID   PPID  C STIME TTY          TIME CMD\nroot          1      0  0 04:57 ?        00:00:00 sh \/opt\/run.sh\nroot         20      0  0 04:58 pts\/0    00:00:00 sh\nroot         27      1  0 04:59 ?        00:00:00 tail -f \/dev\/null\nroot         28     20  0 04:59 pts\/0    00:00:00 ps -ef\n<\/code><\/pre>\n<p>\u7136\u540e\u6211\u4eec\u8fd8\u53ef\u4ee5\u7ee7\u7eed\u5728\u5bb9\u5668\u5185\u542f\u52a8python\u7a0b\u5e8f\uff0c\u6bd4\u5982<\/p>\n<pre><code class=\"language-bash\">sh-4.2# (python \/opt\/test.py &amp;)  # \u4f1a\u88ab0\u53f7\u8fdb\u7a0b\u7ba1\u7406\u7ba1\u7406\uff0c\u5373containerd-shim\n\nsh-4.2# ps -ef\nUID         PID   PPID  C STIME TTY          TIME CMD\nroot          1      0  0 04:57 ?        00:00:00 sh \/opt\/run.sh\nroot         27      1  0 04:59 ?        00:00:00 tail -f \/dev\/null\nroot         69      0  0 05:01 pts\/0    00:00:00 sh\nroot         79      0  0 05:02 pts\/0    00:00:00 python \/opt\/test.py\nroot         80     79  0 05:02 pts\/0    00:00:00 python \/opt\/test.py\nroot         81     80  0 05:02 pts\/0    00:00:00 [python] &lt;defunct&gt;\nroot         82     80  0 05:02 pts\/0    00:00:00 [python] &lt;defunct&gt;\nroot         83     80  0 05:02 pts\/0    00:00:00 [python] &lt;defunct&gt;\nroot         87     69  0 05:02 pts\/0    00:00:00 ps -ef\n\nsh-4.2# kill -9 80\nsh-4.2# ps -ef\nUID         PID   PPID  C STIME TTY          TIME CMD\nroot          1      0  0 04:57 ?        00:00:00 sh \/opt\/run.sh\nroot         27      1  0 04:59 ?        00:00:00 tail -f \/dev\/null\nroot         69      0  0 05:01 pts\/0    00:00:00 sh\nroot         79      0  0 05:02 pts\/0    00:00:00 python \/opt\/test.py\nroot         80     79  0 05:02 pts\/0    00:00:00 [python] &lt;defunct&gt;\nroot         88     69  0 05:02 pts\/0    00:00:00 ps -ef\nsh-4.2# kill -9 79\nsh-4.2# ps -ef\nUID         PID   PPID  C STIME TTY          TIME CMD\nroot          1      0  0 04:57 ?        00:00:00 sh \/opt\/run.sh\nroot         27      1  0 04:59 ?        00:00:00 tail -f \/dev\/null\nroot         69      0  0 05:01 pts\/0    00:00:00 sh\nroot         89     69  0 05:02 pts\/0    00:00:00 ps -ef\n<\/code><\/pre>\n<p>=================\u7528bash\u8fdb\u7a0b\u4f5c\u4e3a\u5bb9\u5668\u51851\u53f7\u8fdb\u7a0b\u5b58\u5728\u7684\u95ee\u9898<\/p>\n<p>\u4e0a\u4f8b\u4e2d\uff0c\u6211\u4eec\u6f14\u793a\u4e86\u53ea\u7ad9\u5728\u56de\u6536\u50f5\u5c38\u8fdb\u7a0b\u7684\u89d2\u5ea6\uff0c\u7528bash\u4f5c\u4e3a1\u53f7\u8fdb\u7a0b\uff0c\u8fd9\u80af\u5b9a\u662f\u53ef\u4ee5\u7684\uff0c\u4f46\u73b0\u5b9e\u4f7f\u7528\u65f6\u6211\u4eec\u901a\u5e38\u5bf91\u53f7\u8fdb\u7a0b\u7684\u8981\u6c42\u8fdc\u4e0d\u6b62\u56de\u6536\u50f5\u5c38\u8fdb\u7a0b\u8fd9\u4e00\u70b9\uff0c\u6bd4\u5982\u6211\u4eec\u60f3\u8981\u5e73\u6ed1\u5173\u95ed\u5bb9\u5668\u7684\u5185\u7684\u6240\u6709\u8fdb\u7a0b<\/p>\n<pre><code class=\"language-bash\">[root@test01 test1]# docker run -d --name test3 t2:v2\n\n[root@test01 test1]# docker exec -ti test3 sh\nsh-4.2# ps -ef\nUID         PID   PPID  C STIME TTY          TIME CMD\nroot          1      0  0 11:19 ?        00:00:00 sh \/opt\/run.sh\nroot          6      1  0 11:19 ?        00:00:00 python \/opt\/test.py\nroot          7      6  0 11:19 ?        00:00:00 python \/opt\/test.py\nroot          8      7  0 11:19 ?        00:00:00 [python] &lt;defunct&gt;\nroot          9      7  0 11:19 ?        00:00:00 [python] &lt;defunct&gt;\nroot         10      7  0 11:19 ?        00:00:00 [python] &lt;defunct&gt;\nroot         11      0  0 11:19 pts\/0    00:00:00 sh\nroot         18     11  0 11:20 pts\/0    00:00:00 ps -ef\n\n[root@test01 ~]# docker container inspect test3 |grep -i pid  # \u83b7\u53d6\u5bb9\u5668\u7684pid\uff0c\u5bf9\u5e94\u5bb9\u5668\u51851\u53f7\u8fdb\u7a0b\u7684pid\n            &quot;Pid&quot;: 17771,\n            &quot;PidMode&quot;: &quot;&quot;,\n            &quot;PidsLimit&quot;: null,\n\n[root@test01 ~]# yum install strace -y\n\n[root@test01 ~]# strace -p 17771  # \u8ffd\u8e2a\u5bb9\u5668\u5185\u4fe1\u53f7\uff0c\u7136\u540e\u6253\u5f00\u53e6\u5916\u4e00\u4e2a\u7ec8\u7aef\u6267\u884cdocker stop test3\uff0c\u4f1a\u5f97\u5230\u5982\u4e0b\u5185\u5bb9\nstrace: Process 17771 attached\nwait4(-1, 0x7ffc632b6990, 0, NULL)      = ? ERESTARTSYS (To be restarted if SA_RESTART is set)\n# 1\u53f7\u8fdb\u7a0b\u6536\u5230\u4e86SIGTERM\u4fe1\u53f7\n--- SIGTERM {si_signo=SIGTERM, si_code=SI_USER, si_pid=0, si_uid=0} ---\nwait4(-1, 0x7ffc632b6990, 0, NULL)      = ? ERESTARTSYS (To be restarted if SA_RESTART is set)\n# \u5176\u4ed6\u8fdb\u7a0b\u5219\u6536\u5230\u4e86SIGKILL\u4fe1\u53f7\n+++ killed by SIGKILL +++<\/code><\/pre>\n<p>\u6211\u4eec\u6267\u884cdocker stop test3\u65f6\uff0c\u901a\u8fc7strace\u547d\u4ee4\u53ef\u4ee5\u770b\u52301\u53f7\u8fdb\u7a0b\u6536\u5230\u7684\u662f\u5e73\u6ed1\u5173\u95ed\u7684\u4fe1\u53f7SIGTERM\uff0c\u800c\u5bb9\u5668\u5185\u5176\u4ed6\u8fdb\u7a0b\u6536\u5230\u7684\u5219\u662f\u5f3a\u5236\u6740\u6b7b\u7684\u4fe1\u53f7SIGKILL\uff0c\u8fd9\u662f\u6709\u95ee\u9898\u7684\uff0c\u5982\u679c\u5bb9\u5668\u51851\u53f7\u8fdb\u7a0b\u4e4b\u5916\u7684\u5b50\u8fdb\u7a0b\u6b63\u5728\u5904\u7406\u4e00\u4e9b\u6570\u636e\u5e93\u8fde\u63a5\u3001\u6253\u5f00\u7740\u6587\u4ef6\uff0c\u5f3a\u5236\u6740\u6b7b\u540e\uff0c\u8fd9\u4e9b\u8d44\u6e90\u77ed\u65f6\u95f4\u5185\u90fd\u4e0d\u4f1a\u88ab\u91ca\u653e\u6389\uff0c\u767d\u767d\u5360\u7528\u8d44\u6e90\uff0c\u5982\u679c\u78b0\u4e0a\u4e86\u9ad8\u5e76\u53d1\u538b\u529b\uff0c\u8fd9\u662f\u7edd\u5bf9\u4e0d\u5141\u8bb8\u7684\u3002\u6211\u4eec\u5e94\u8be5\u4fdd\u8bc1\u5bb9\u5668\u5728\u88abstop\u65f6\u80fd\u591f\u54cd\u5e94-15\u4fe1\u53f7\u800c\u5e73\u6ed1\u5173\u95ed<\/p>\n<p>\u8fd9\u91cc\u6709\u4e24\u4e2a\u95ee\u9898\u9700\u8981\u7814\u7a76\u660e\u767d<\/p>\n<p>1\u3001\u4e3a\u4f55kill -9 \u6216\u8005kill -19\u5c31\u4e0d\u662f\u5e73\u6ed1\u5173\u95ed\u8fdb\u7a0b\uff0c\u800c-15\u5219\u662f\u4e00\u4e2a\u53ef\u4ee5\u88ab\u54cd\u5e94\u5e76\u4fdd\u8bc1\u5e73\u6ed1\u5173\u95ed\u7684\u4fe1\u53f7<\/p>\n<p>2\u3001\u4e3a\u4f551\u53f7\u8fdb\u7a0b\u6536\u5230\u7684\u662fSIGTERM\u4fe1\u53f7\uff0c\u800c\u5176\u4ed6\u8fdb\u7a0b\u6536\u5230\u7684\u5219\u662fSIGKILL\u4fe1\u53f7\u5462\uff1f\uff1f\uff1f<\/p>\n<p>\u641e\u6e05\u695a\u4e0a\u8ff0\u95ee\u9898\u4e4b\u540e\uff0c\u6211\u4eec\u6700\u7ec8\u4f1a\u5f97\u51fa\u4e00\u4e2a\u7ed3\u8bba\uff0c\u8fd8\u662f\u4f7f\u7528tini\u4f5c\u4e3a\u5bb9\u5668\u5185\u76841\u53f7\u8fdb\u7a0b\u662f\u4e00\u4e2a\u76f8\u5bf9\u5b8c\u5584\u7684\u9009\u62e9\uff0c\u4f46\u5728\u6b64\u4e4b\u524d\uff0c\u5148\u6765\u50a8\u5907\u4e00\u4e0b\u4fe1\u53f7\u76f8\u5173\u77e5\u8bc6\uff0c\u5728\u9605\u8bfb\u5b8c6.1-6.5\u5c0f\u8282\u4e4b\u540e\uff0c\u4f60\u5c06\u4f1a\u77e5\u9053\u4e0a\u8ff0\u4e24\u4e2a\u95ee\u9898\u7684\u7b54\u6848<\/p>\n<h1>\u516d linux\u7cfb\u7edf\u4e2d\u7684\u8fdb\u7a0b\u4fe1\u53f7<\/h1>\n<h2>6.1 \u4e86\u89e3\u4fe1\u53f7<\/h2>\n<p>\u4fe1\u53f7\u5c31\u662flinux\u8fdb\u7a0b\u6536\u5230\u7684\u4e00\u4e2a\u901a\u77e5\uff0c\u8fdb\u7a0b\u9488\u5bf9\u81ea\u5df1\u6ca1\u6709\u6ce8\u518c\u8fc7\u7684\u4fe1\u53f7\u5219\u6267\u884c\u7f3a\u7701\u884c\u4e3a\uff0c\u9488\u5bf9\u81ea\u5df1\u6ce8\u518c\u8fc7\u7684\u4fe1\u53f7\u5219\u5728\u6536\u5230\u4fe1\u53f7\u540e\u89e6\u53d1\u81ea\u5b9a\u4e49\u7684\u884c\u4e3a\u3002<\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u7528kill\u547d\u4ee4\u5411\u8fdb\u7a0b\u53d1\u9001\u5982\u4e0b\u4fe1\u53f7<\/p>\n<p>\u4f8b\u5982<\/p>\n<p>1\u3001kill -9 666\uff0c\u4ee3\u8868\u5411666\u53f7\u8fdb\u7a0b\u53d1\u9001SIGKILL\u4fe1\u53f7<\/p>\n<p>2\u3001kill 666\uff0c\u6ca1\u6709\u6307\u5b9a\u4fe1\u53f7\uff0c\u9ed8\u8ba4\u53d1\u9001\u7684\u662f-15\u4fe1\u53f7\uff0c\u5373SIGTERM<\/p>\n<pre><code class=\"language-bash\">[root@test01 ~]# kill -l # \u67e5\u770b\u4fe1\u53f7\u7684\u4ee3\u53f7\u4e0e\u540d\u79f0\n 1) SIGHUP   2) SIGINT   3) SIGQUIT  4) SIGILL   5) SIGTRAP\n 6) SIGABRT  7) SIGBUS   8) SIGFPE   9) SIGKILL 10) SIGUSR1\n11) SIGSEGV 12) SIGUSR2 13) SIGPIPE 14) SIGALRM 15) SIGTERM\n16) SIGSTKFLT   17) SIGCHLD 18) SIGCONT 19) SIGSTOP 20) SIGTSTP\n21) SIGTTIN 22) SIGTTOU 23) SIGURG  24) SIGXCPU 25) SIGXFSZ\n26) SIGVTALRM   27) SIGPROF 28) SIGWINCH    29) SIGIO   30) SIGPWR\n31) SIGSYS  34) SIGRTMIN    35) SIGRTMIN+1  36) SIGRTMIN+2  37) SIGRTMIN+3\n38) SIGRTMIN+4  39) SIGRTMIN+5  40) SIGRTMIN+6  41) SIGRTMIN+7  42) SIGRTMIN+8\n43) SIGRTMIN+9  44) SIGRTMIN+10 45) SIGRTMIN+11 46) SIGRTMIN+12 47) SIGRTMIN+13\n48) SIGRTMIN+14 49) SIGRTMIN+15 50) SIGRTMAX-14 51) SIGRTMAX-13 52) SIGRTMAX-12\n53) SIGRTMAX-11 54) SIGRTMAX-10 55) SIGRTMAX-9  56) SIGRTMAX-8  57) SIGRTMAX-7\n58) SIGRTMAX-6  59) SIGRTMAX-5  60) SIGRTMAX-4  61) SIGRTMAX-3  62) SIGRTMAX-2\n63) SIGRTMAX-1  64) SIGRTMAX    \n[root@test01 ~]# \n<\/code><\/pre>\n<p>\u4e5f\u53ef\u4ee5\u901a\u8fc7\u5176\u4ed6\u65b9\u5f0f\u4e3a\u8fdb\u7a0b\u53d1\u9001\u4fe1\u53f7\uff0c\u4f8b\u5982<\/p>\n<ul>\n<li>\n<p>1\u3001\u7ec4\u5408\u952e<\/p>\n<pre><code class=\"language-bash\">\u4e00\u3001ctrl-c\n\u3000\u3000\u9488\u5bf9\u4e00\u4e2a\u524d\u53f0\u8fd0\u884c\u7684\u8fdb\u7a0b\uff0c\u6309\u4e0bctrl+c\u7ec4\u5408\u952e\uff0c\u4ee3\u8868\u53d1\u9001 SIGINT \u4fe1\u53f7\uff08\u7a0b\u5e8f\u7ec8\u6b62(interrupt)\u4fe1\u53f7\uff09\u7ed9\u524d\u53f0\u8fdb\u7a0b\u7ec4\u4e2d\u7684\u6240\u6709\u8fdb\u7a0b\u3002\n\u3000\u3000\u5e38\u7528\u4e8e\u7ec8\u6b62\u6b63\u5728\u8fd0\u884c\u7684\u7a0b\u5e8f\u3002\n\n\u4e8c\u3001ctrl-z\n\u3000\u3000\u53d1\u9001 SIGTSTP \u4fe1\u53f7\uff08\u505c\u6b62\u8fdb\u7a0b\u7684\u8fd0\u884c, \u4f46\u8be5\u4fe1\u53f7\u53ef\u4ee5\u88ab\u5904\u7406\u548c\u5ffd\u7565\uff09\n\u3000\u3000\u7ed9\u524d\u53f0\u8fdb\u7a0b\u7ec4\u4e2d\u7684\u6240\u6709\u8fdb\u7a0b\uff0c\u5e38\u7528\u4e8e\u6302\u8d77\u4e00\u4e2a\u8fdb\u7a0b\u3002\n\u3000\u3000\u5982\u679c\u9700\u8981\u6062\u590d\u5230\u524d\u53f0\u8f93\u5165fg\uff0c\u6062\u590d\u5230\u540e\u53f0\u8f93\u5165bg<\/code><\/pre>\n<\/li>\n<li>\n<p>2\u3001\u5982\u679c\u4ee3\u7801\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u51fa\u73b0bug\uff0c\u5bfc\u81f4\u5185\u5b58\u8bbf\u95ee\u51fa\u9519\uff0c\u5f53\u524d\u8fdb\u7a0b\u5c31\u4f1a\u6536\u5230\u4e00\u4e2a\u4fe1\u53f7SIGSEGV<\/p>\n<\/li>\n<\/ul>\n<h2>6.2 \u8fdb\u7a0b\u6536\u5230\u4fe1\u53f7\u540e\u7684\u4e09\u79cd\u53cd\u5e94<\/h2>\n<p>\u4e00\u4e2a\u8fdb\u7a0b\u6536\u5230\u4fe1\u53f7\u540e\u6709\u4e09\u79cd\u53cd\u5e94\uff1a<\/p>\n<ul>\n<li>\n<p>1\u3001\u5ffd\u7565\uff08Ignore\uff09: \u5c31\u662f\u5bf9\u8be5\u4fe1\u53f7\u4e0d\u505a\u4efb\u4f55\u5904\u7406\uff0c<\/p>\n<\/li>\n<li>\n<p>2\u3001\u6355\u83b7\uff08Catch\uff09\uff1a\u5c31\u662f\u8ba9\u7528\u6237\u8fdb\u7a0b\u53ef\u4ee5\u6ce8\u518c\u81ea\u5df1\u9488\u5bf9\u8fd9\u4e2a\u4fe1\u53f7\u7684handler\uff0c\u4f8b\u5982\u7528shell\u6f14\u793a\u4e00\u4e0b\uff0c\u5982\u6b64\uff0c\u4e00\u65e6\u8fdb\u7a0b\u6536\u5230\u8be5\u4fe1\u53f7\u540e<\/p>\n<p>\u200b      \u5c31\u4f1a\u89e6\u53d1handler\u7684\u529f\u80fd\u8fd0\u884c\uff0c\u7528shell\u6f14\u793a\u4e00\u4e0b<\/p>\n<pre><code class=\"language-bash\">#!\/bin\/bash\n# \u64cd\u4f5c1\uff1a\u6355\u6349\u4fe1\u53f7\u3001\u6267\u884c\u5f15\u53f7\u5185\u7684\u64cd\u4f5c\ntrap \"echo \u5df2\u7ecf\u8bc6\u522b\u4fe1\u53f7TERM\" TERM\n\ntrap \"echo \u5df2\u7ecf\u8bc6\u522b\u4e2d\u65ad\u4fe1\u53f7:ctrl+c\" INT\n\n# \u793a\u4f8b2\uff1a\u6355\u6349\u4fe1\u53f7\u3001\u4e0d\u6267\u884c\u4efb\u4f55\u64cd\u4f5c\n# trap \"\" INT  \n\n# \u793a\u4f8b3\uff1a\u4e5f\u53ef\u4ee5\u540c\u65f6\u6355\u83b7\u591a\u4e2a\u4fe1\u53f7\n# trap \"\" HUP INT QUIT TSTP\n\nwhile true;\ndo\n  sleep 0.5\ndone<\/code><\/pre>\n<\/li>\n<li>\n<p>3\u3001\u9ed8\u8ba4\/\u7f3a\u7701\u884c\u4e3a\uff08Default\uff09\uff1alinux\u7cfb\u7edf\u4e3a\u6bcf\u4e2a\u4fe1\u53f7\u90fd\u5b9a\u4e49\u4e86\u9ed8\u8ba4\u8981\u505a\u7684\u4e8b\u60c5\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7man 7 signal\u6765\u67e5\u770b\uff0c\u5bf9\u4e8e\u5927\u591a\u6570\u4fe1  \u53f7\u6765\u8bf4\uff0c\u6211\u4eec\u90fd\u4e0d\u9700\u8981\u6355\u83b7\u5e76\u6ce8\u518c\u81ea\u5df1\u7684handler\uff0c\u4f7f\u7528\u9ed8\u8ba4\u7684\u5c31\u597d<\/p>\n<\/li>\n<\/ul>\n<h2>6.3 \u4e24\u4e2a\u7279\u6743\u4fe1\u53f7<\/h2>\n<p>\u9700\u8981\u5f3a\u8c03\u7684\u4e00\u70b9\u662f\uff0clinux\u4fe1\u53f7\u91cc\u6709\u4e24\u4e2a\u7279\u6743\u4fe1\u53f7\uff1a<\/p>\n<ul>\n<li>1\u3001SIGKILL\uff08-9\uff09<\/li>\n<li>2\u3001SIGSTOP\uff08-19\uff09<\/li>\n<\/ul>\n<p>\u4ee3\u8868\u5f3a\u5236\u6740\u6b7b\uff0c\u8fd9\u4e24\u4e2a\u4fe1\u53f7\u6709\u4e24\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u7279\u70b9<\/p>\n<ul>\n<li>\n<p>1\u3001\u65e0\u6cd5\u88ab\u5ffd\u7565\uff08Ignore\uff09<\/p>\n<\/li>\n<li>\n<p>2\u3001\u65e0\u6cd5\u88ab\u6355\u83b7\uff08Catch\uff09<\/p>\n<\/li>\n<\/ul>\n<p>\u56e0\u4e3a\u8fd9\u4e24\u4fe1\u53f7\u662flinux\u7cfb\u7edf\u4e3a\u5185\u6838\u548c\u8d85\u7ea7\u7528\u6237\u51c6\u5907\u7684\u7279\u6743-\u300b\u53ef\u4ee5\u5220\u9664\u4efb\u610f\u7684\u8fdb\u7a0b\uff0c\u4efb\u4f55\u8fdb\u7a0b\u53ea\u8981\u6536\u5230\u4e86\u8fd9\u4fe9\u4fe1\u53f7,\u53ea\u80fd\u6267\u884c\u7f3a\u7701\u884c\u4e3a\uff0c\u4efb\u4f55\u8fdb\u7a0b\u6536\u5230\u4e86\u8fd9\u4fe9\u4fe1\u53f7\u90fd\u53ea\u80fd\u4e56\u4e56\u542c\u8bdd\u3001\u6362\u53e5\u8bdd\u8bf4\u78b0\u4e0a\u4e86\u53ea\u6709\u6b7b\u7684\u4efd\u3002<\/p>\n<p>\u81f3\u4e8eSIGTERM\uff08-15\uff09\u4fe1\u53f7\uff0c\u4ee3\u8868\u7684\u662f\u5e73\u6ed1\u5173\u95ed\uff0c\u8be5\u4fe1\u53f7\u662f\u53ef\u4ee5\u88ab\u5ffd\u7565\u6216\u8005\u8bf4\u6355\u83b7\u7684<\/p>\n<p>\u6b64\u5916\u987b\u77e5<\/p>\n<pre><code class=\"language-python\"># KILL (9)\n\u7528\u6765\u7acb\u5373\u7ed3\u675f\u7a0b\u5e8f\u7684\u8fd0\u884c. \u672c\u4fe1\u53f7\u4e0d\u80fd\u88ab\u963b\u585e\u3001\u5904\u7406\u548c\u5ffd\u7565\u3002\u5982\u679c\u7ba1\u7406\u5458\u53d1\u73b0\u67d0\u4e2a\u8fdb\u7a0b\u7ec8\u6b62\u4e0d\u4e86\uff0c\u53ef\u5c1d\u8bd5\u53d1\u9001\u8fd9\u4e2a\u4fe1\u53f7\u3002\n# TERM(15): \n\u7ec8\u6b62,\u662f\u4e0d\u5e26\u53c2\u6570\u65f6kill\u9ed8\u8ba4\u53d1\u9001\u7684\u4fe1\u53f7\uff0c\u9ed8\u8ba4\u662f\u6740\u6b7b\u8fdb\u7a0b\uff0c\u4e0eSIGKILL\u4e0d\u540c\u7684\u662f\u8be5\u4fe1\u53f7\u53ef\u4ee5\u88ab\u963b\u585e\u548c\u5904\u7406\u3002\u901a\u5e38\u7528TERM\u4fe1\u53f7\u6765\u8981\u6c42\u7a0b\u5e8f\u81ea\u5df1\u6b63\u5e38\u9000\u51fa\uff0c\u5982\u679c\u8fdb\u7a0b\u7ec8\u6b62\u4e0d\u4e86\uff0c\u6211\u4eec\u624d\u4f1a\u5c1d\u8bd5SIGKILL\u3002<\/code><\/pre>\n<h2>6.4 kill \u547d\u4ee4\u7684\u6267\u884c\u6d41\u7a0b<\/h2>\n<p>kill\u547d\u4ee4\u6267\u884c\u65f6\u672c\u8eab\u5c31\u662f\u4e00\u4e2a\u8fdb\u7a0b\uff0c\u8be5\u8fdb\u7a0b\u9700\u8981\u7ed9\u53e6\u5916\u4e00\u4e2a\u8fdb\u7a0b\u53d1\u9001\u4fe1\u53f7\uff08\u5c31\u662f\u4f60\u7528pid\u53f7\u6307\u5b9a\u7684\u90a3\u4e2a\u8fdb\u7a0b\uff09\uff0c\u4e2d\u95f4\u9700\u8981\u7ecf\u8fc7\u5185\u6838\u8f6c\u53d1<\/p>\n<p>kill\u547d\u4ee4&#8212;&#8212;&#8212;&#8212;-\u300b\u5185\u6838&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;\u300b\u53e6\u5916\u4e00\u4e2a\u8fdb\u7a0b<\/p>\n<p>\u6240\u4ee5\uff0ckill\u547d\u4ee4\u662f\u662f\u5411\u5185\u6838\u53d1\u9001\u4fe1\u53f7\uff0ckill\u5728\u7528\u6237\u6001\uff0c\u6267\u884ckill\u547d\u4ee4\u5219\u4f1a\u8c03\u7528\u7cfb\u7edf\u8c03\u7528\u63a5\u53e3kill()\uff0c\u7136\u540e\u8fdb\u5165\u5230\u5185\u6838\u51fd\u6570sys_kill()<\/p>\n<p>\u7136\u540e\u5185\u6838\u6001\u6d41\u7a0b\uff1asys_kill()&#8212;&gt; _send_signal() &#8212;&#8212;&gt;sig_task_ignored()<\/p>\n<p>\u6ca1\u6709\u88absig_task_ignored()\u5ffd\u7565\u6389\u7684\u4fe1\u53f7\u624d\u4f1a\u53d1\u9001\u7ed9\u7528\u6237\u6001\u7684\u7684\u53e6\u5916\u4e00\u4e2a\u8fdb\u7a0b\uff0csig_task_ignored()\u5c31\u76f8\u5f53\u4e8e\u4e00\u5c42\u5173\u5361\uff0c\u88ab\u5b83\u653e\u884c\u7684\u4fe1\u53f7\u624d\u4f1a\u901a\u77e5\u7ed9\u7528\u6237\u6001\u7684\u6307\u5b9a\u8fdb\u7a0b\uff08\u5982\u4e0b\u56fe\u6240\u793apid\u4e3a1\u7684\u8fdb\u7a0b\uff09<\/p>\n<p>\u5982\u4e0b\u56fe\u6240\u793a<br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/07\/image-1659092779576.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/07\/image-1659092779576.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><\/p>\n<p>\u56e0\u6b64\u4e0a\u56fe\u7528\u6237\u6001pid\u4e3a1\u7684\u8fdb\u7a0b\u80fd\u5426\u6536\u5230kill\u53d1\u6765\u7684\u4fe1\u53f7\uff0c\u4e3b\u8981\u770bsig_task_ignored()\u7684\u529f\u80fd<\/p>\n<p>sig_task_ignored()\u4ee3\u7801\u5982\u4e0b\uff0c\u4e3b\u8981\u6709\u4e09\u4e2a\u5224\u65ad\u6761\u4ef6\uff0c\u4efb\u610f\u4e00\u4e2a\u6761\u4ef6\u6210\u7acb\uff0c\u90fd\u4f1a\u8fd4\u56detrue\uff0c\u4ee3\u8868\u5e94\u8be5\u5ffd\u7565\uff08Ignore\uff09\u5f53\u524d\u4fe1\u53f7<br \/>\n\u7b2c\u4e00\u4e2aif\u5224\u65ad\u4e0e\u7b2c\u4e09\u4e2aif\u5224\u65ad\u4e0e\u6211\u4eec\u8ba8\u8bba\u7684\u95ee\u9898\u65e0\u5173\uff0c\u53ef\u4ee5\u53c2\u8003\u6ce8\u91ca\u81ea\u884c\u4e86\u89e3\uff0c\u6211\u4eec\u4e3b\u8981\u770b\u4e00\u4e0b\u7b2c\u4e8c\u4e2aif\u5224\u65ad<br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2022\/07\/image-1659092804541.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2022\/07\/image-1659092804541.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"file\" \/><\/div><\/p>\n<p>\u7b2c\u4e8c\u4e2aif\u5224\u65ad\u529b\u7684\u6761\u4ef6\uff0c\u53c8\u5206\u4e3a\u4e09\u4e2a\u5b50\u6761\u4ef6<\/p>\n<ul>\n<li>\n<p>1\u3001\u201ct-&gt;signal-&gt;flags &amp; SIGNAL_UNKILLABLE\u201d\uff0c\u8be5\u6761\u4ef6\u4ee3\u8868\u8fdb\u7a0b\u5fc5\u987b\u662f SIGNAL_UNKILLABLE <\/p>\n<pre><code class=\"language-bash\">\u5728\u6bcf\u4e2aNamespace\u76841\u53f7\u8fdb\u7a0b\u521b\u5efa\u65f6\uff0c\u90fd\u4f1a\u88ab\u6253\u4e0aSIGNAL_UNKILLABLE \u8fd9\u4e2a\u6807\u7b7e\uff0c\u4e5f\u5c31\u662f\u8bf4\u53ea\u8981\u662f1\u53f7\u8fdb\u7a0b\u90fd\u4f1a\u6709\u8be5flag\uff0c\u6b64\u6761\u4ef6\u9488\u5bf91\u53f7\u8fdb\u7a0b\u4e00\u5b9a\u6ee1\u8db3<\/code><\/pre>\n<\/li>\n<li>\n<p>2\u3001\u201chandler == SIG_DFL\uff0c\u4ee3\u8868\u5224\u65ad\u4fe1\u53f7\u7684handler\u662f\u5426\u4e3aSIG_DFL\uff0c\u5982\u679c\u7528\u6237\u8fdb\u7a0b\u6ca1\u6709\u4e3a\u8be5\u8fdb\u884c\u6ce8\u518c\u8d44\u91d1\u7684handler\uff0c\u90a3\u9ed8\u8ba4\u80af\u5b9a\u9488\u5bf9\u8be5\u4fe1\u53f7\u6709\u4e00\u4e2a\u7f3a\u7701\u7684handler\uff0c\u8fd9\u4e2a\u7f3a\u7701\u7684handler\u5c31\u53ebSIG_DFL\uff0c\u603b\u7ed3\u4e00\u53e5\u8bdd\u5c31\u662f\uff1a\u5982\u679c\u4f60\u6ca1\u6709\u6ce8\u518chandler\uff0c\u90a3\u4e48\u8be5\u6761\u4ef6\u5c31\u6210\u7acb<\/p>\n<\/li>\n<\/ul>\n<pre><code class=\"language-bash\">\u9488\u5bf9\u7279\u6743\u4fe1\u53f7SIGKILL\uff08-9\uff09\u4e0eSIGSTOP\uff08-19\uff09\u4f60\u662f\u65e0\u6cd5\u6ce8\u518chandler\u7684\uff0c\u6240\u4ee5\u8fd9\u4fe9\u4fe1\u53f7\u7684handler\u4e00\u5b9a\u662fSIG_DFL\uff0c\u8be5\u6761\u4ef6\u4e00\u5b9a\u6ee1\u8db3\n\n\u4f46\u662f\uff0c\u9488\u5bf9SIGTERM\uff08-15\uff09\u4fe1\u53f7\uff0c\u4f60\u8fd8\u662f\u53ef\u4ee5\u6ce8\u518c\u8d44\u91d1\u7684handler\u7684\uff0c\u90a3\u5b83\u5c31\u4e0d\u662fSIG_DFL\uff0c\u8be5\u6761\u4ef6\u5c31\u4e0d\u6210\u7acb\uff0c\u5f53\u7136\u5982\u679c\u4f60\u6ca1\u6709\u6ce8\u518chandler\uff0c\u5219\u9ed8\u8ba4\u8fd8\u662fSIG_DFL\uff0c\u8be5\u6761\u4ef6\u8fd8\u662f\u6210\u7acb<\/code><\/pre>\n<ul>\n<li>3\u3001&quot;!(force &amp;&amp; sig_kernel_only(sig))&quot; \uff0cforce \u7531\u53d1\u9001\u4fe1\u53f7\u7684\u8fdb\u7a0b\u548c\u63a5\u53d7\u4fe1\u53f7\u8fdb\u7a0b\u662f\u5426\u5728\u540c\u4e00\u4e2anamespace\u91cc\u51b3\u5b9a\uff0c\u6211\u4eec\u662f\u5728\u5bb9\u5668\u5185\u6267\u884ckill -9\u547d\u4ee4\uff0c\u5e76\u4e14\u53d1\u9001\u7ed9\u7684\u76ee\u6807\u8fdb\u7a0b\u4e5f\u662f\u5bb9\u5668\u5185\u7684\u8fdb\u7a0b\uff0c\u6240\u4ee5\u8be5force\u503c\u4e00\u5b9a\u4e3a0\uff08\u6ce8\u610f\u5728c\u8bed\u8a00\u4e2d0\u4ee3\u8868\u5047False\uff09\uff0c\u800csig_kernel_only\u51fd\u6570\u662f\u7528\u4e86\u5224\u65ad\u4fe1\u53f7\u662f\u4e0d\u662fsigkill\u6216\u8005sigstop\u7684\uff0c\u5982\u679c\u662f\u8fd9\u4e24\u4e2a\u4fe1\u53f7\u4e4b\u4e00\u624d\u4f1a\u8fd4\u56detrue\uff0c\u5f88\u660e\u663ekill -9\u7b26\u5408\u8fd9\u4e2a\u4e00\u70b9\uff0c\u6240\u4ee5&quot;!(force &amp;&amp; sig_kernel_only(sig))&quot; \u5373&quot;!(False &amp;&amp; True)&quot;\u6700\u7ec8\u7ed3\u679c\u4e3aTrue\uff0c\u8be5\u6761\u4ef6\u4e5f\u6210\u7acb<\/li>\n<\/ul>\n<h2>6.5 \u5728\u5bb9\u5668\u5185-9\u3001-19\u3001-15\u5bf91\u53f7\u8fdb\u7a0b\u7684\u5f71\u54cd<\/h2>\n<p>\u5728k8s\uff0c\u5982\u679c\u6211\u4eec\u5df2\u53d1\u5e03\u7684\u955c\u50cf\u6709bug\uff0c\u4ee5\u6b64\u542f\u52a8\u4e86\u4e00\u4e2apod\uff0c\u60f3\u4fee\u8be5\u955c\u50cf\u91cc\u7684bug\uff0c\u4f46\u662f\u56e0\u4e3a\u7f51\u7edc\u914d\u7f6e\u95ee\u9898\uff0c\u53c8\u4e0d\u60f3\u91cd\u5efapod\u53bb\u6539\u53d8pod IP\uff0c\u5373\u6211\u4eec\u53ea\u60f3\u91cd\u542fpod\u5185\u76841\u53f7\u8fdb\u7a0b\u8ba9\u5b83\u91cd\u65b0\u52a0\u8f7d\u914d\u7f6e\uff0c\u800c\u4e0d\u60f3\u91cd\u5efapod\uff0c\u600e\u4e48\u529e\uff1f<\/p>\n<p>k8s\u91cc\u662f\u6ca1\u6709restart pod\u8fd9\u79cd\u547d\u4ee4\u7684\uff0c\u4f60\u53ef\u80fd\u4f1a\u60f3\u5230exec\u5230pod\u5185\u6267\u884c\u5f3a\u5236\u6740\u6b7b1\u53f7\u8fdb\u7a0b\uff0c\u5bb9\u5668\u4e0d\u5c31\u91cd\u542f\u4e86\u5417\uff1f\u60f3\u6cd5\u662f\u597d\u7684\uff0c\u4f46\u662f\u73b0\u5b9e\u4e2d\u6709\u5751\uff01\uff01\uff01<\/p>\n<p>\u9488\u5bf9\u5bb9\u5668\u5185\u76841\u53f7\u8fdb\u7a0b\uff0c\u6211\u4eec\u5728\u5bb9\u5668\u5185\u90e8\u4f7f\u7528kill\u547d\u4ee4\u5bf9\u5176\u53d1\u9001\u5982\u4e0b\u7ec8\u6b62\u4fe1\u53f7<\/p>\n<ul>\n<li>-9\u4e0e-19\u5bf9\u4e8e1\u53f7\u8fdb\u7a0b\u6765\u8bf4\u5747\u65e0\u6548\uff0c\u5373\u4f60\u65e0\u6cd5\u5728\u5bb9\u5668\u5185\u7528kill -9\u6216kill -19\u6740\u6b7b\u5bb9\u5668\u5185\u76841\u53f7\u8fdb\u7a0b\uff0c\u5f53\u7136\u4f60\u5728\u5bb9\u5668\u5916\u5219\u662f\u53ef\u4ee5\u6b63\u5e38\u6740\u6b7b\u524d\u63d0\u662f\u4f60\u627e\u5230\u5bb9\u5668\u51851\u53f7\u8fdb\u7a0b\u6620\u5c04\u5230\u7269\u7406\u673a\u7684pid\u53f7<\/li>\n<li>-15\u4fe1\u53f7\u5bf91\u53f7\u8fdb\u7a0b\u6765\u8bf4\u53ef\u80fd\u6709\u6548\uff0c\u81f3\u4e8e\u662f\u5426\u6709\u6548\u9700\u8981\u770b1\u53f7\u8fdb\u7a0b\u662f\u5426\u6ce8\u518c\u4e86\u5173\u4e8e-15\u4fe1\u53f7\u7684handler\u3002\u5373\u4f60\u5728\u5bb9\u5668\u5185\u662f\u6709\u53ef\u80fd\u7528kill -15 1\u6740\u6b7b\u5bb9\u5668\u5185\u76841\u53f7\u8fdb\u7a0b\u7684<\/li>\n<\/ul>\n<pre><code class=\"language-bash\">\u6ce8\u610f\uff1a\u6b64\u5904\u8ba8\u8bba\u7684\u4e00\u5b9a\u662f\u5728\u5bb9\u5668\u5185\u90e8\u53d1\u9001\u547d\u4ee4\uff0c\u5177\u4f53\u4f60\u8bfe\u53ef\u4ee5\u53c2\u8003\u4e0a\u4e00\u5c0f\u8282sig_task_ignored()\u4e2d\u8ba8\u8bba\u7684force\u503c<\/code><\/pre>\n<p><strong>====================\u300b\u4e3a\u4f55-9\u6216-19\u4fe1\u53f7\u65e0\u6cd5\u5728\u5bb9\u5668\u5185\u6740\u6b7b\u5bb9\u5668\u76841\u53f7\u8fdb\u7a0b\uff1f\uff1f\uff1f\u300a====================<\/strong><\/p>\n<p>\u57fa\u4e8e\u4e0a\u4e00\u5c0f\u8282\u6240\u8ff0\uff0c\u89e3\u6790\u539f\u56e0\u5982\u4e0b<\/p>\n<pre><code class=\"language-bash\">\u5f53\u4f60\u5728\u5bb9\u5668\u5185\uff0c\u5728\u5bb9\u5668\u5185\uff0c\u5728\u5bb9\u5668\u5185\uff0c\u4f7f\u7528kill\u53d1-9\u6216\u8005-19\u7ed9\u5bb9\u5668\u5185\u5bb9\u5668\u5185\u5bb9\u5668\u5185\u76841\u53f7\u8fdb\u7a0b\uff0c\u5173\u4e8esig_task_ignored()\u7b2c\u4e8c\u4e2a\u6761\u4ef6\u91cc\u7684\u4e09\u4e2a\u5b50\u6761\u4ef6\n\n- \u6761\u4ef61\n\u5bf9\u4e8e\u5bb9\u5668\u5185\u76841\u53f7\u8fdb\u7a0b\u6765\u8bf4\uff0c\u6761\u4ef61\u6c38\u8fdc\u6210\u7acb\uff0c\u56e0\u4e3a1\u53f7\u8fdb\u7a0b\u5728\u521b\u5efa\u4e4b\u521d\u5c31\u4f1a\u88ab\u6253\u4e0aSIGNAL_UNKILLABLE \u6807\u7b7e\n\n- \u6761\u4ef62 \n\u6761\u4ef62\u6210\u7acb\uff0c\u56e0\u4e3a-9\u53ca-19\u4fe1\u53f7\u90fd\u5c5e\u4e8e\u7279\u6743\u4fe1\u53f7\uff0c\u65e0\u6cd5\u4e3a\u5176\u6ce8\u518chandler\uff0c\u6240\u4ee5\u5b83\u7684\u6807\u7b7e\u4e00\u5b9a\u662fSIG_DFL\n\n- \u6761\u4ef63\n\u4f60\u662f\u5728\u5bb9\u5668\u5185\u6267\u884c\u7684kill\u547d\u4ee4\uff0c\u5e76\u53d1\u9001\u7684\u76ee\u6807\u8fdb\u7a0b\u4e5f\u662f\u5bb9\u5668\u5185\u8fdb\u7a0b\uff0c\u5e76\u4e14\u6b64\u5904\u8ba8\u8bba\u7684\u662f-9\u6216-19\u4fe1\u53f7\uff0c\n\u6240\u4ee5\u6761\u4ef63\u91ccforce\u503c\u4e3a0\u4ee3\u8868False\uff0csig_kernel_only(sig)\u5339\u914d-9\u6216-19\u6210\u529f\u4e5f\u4e3a\u771fTrue\uff0c\u6761\u4ef63&quot;!(force &amp;&amp; sig_kernel_only(sig))&quot; \u5373&quot;!(False &amp;&amp; True)&quot;\u6700\u7ec8\u7ed3\u679c\u4e3aTrue\uff0c\u6240\u4ee5\u5728\u5f53\u524d\u573a\u666f\u4e0b\uff0c\u6761\u4ef63\u4e5f\u6c38\u8fdc\u6210\u7acb<\/code><\/pre>\n<p>PS:\u5982\u679c\u4f60\u662f\u5728\u5bb9\u5668\u5916\u3001\u5bbf\u4e3b\u673a\u4e0a\uff0c \u4f60\u60f3\u600e\u4e48\u6740\u5bb9\u5668\u5c31\u600e\u4e48\u6740\u5bb9\u5668\uff0c\u53ea\u8981\u4f60\u627e\u5230\u5bb9\u5668\u5185\u8fdb\u7a0b\u5bf9\u5e94\u5bbf\u4e3b\u673a\u7684pid\u5c31\u53ef\u4ee5<\/p>\n<p>\u6848\u4f8b\u6f14\u793a\uff0c\u6015\u4f60\u770b\u4e0d\u89c1\uff0c\u518d\u6b21\u5f3a\u8c03\u4e00\u5b9a\u662f\u5728\u5bb9\u5668\u5185\uff0c\u6ce8\u610f\u4e00\u5b9a\u662f\u5728\u5bb9\u5668\u5185\u6267\u884ckill -9 1\u4e0ekill -19 1<\/p>\n<p>\u6848\u4f8b1\uff1ago\u7a0b\u5e8f\u4f5c\u4e3a1\u53f7\u8fdb\u7a0b<\/p>\n<pre><code class=\"language-bash\"># 1\u3001\u5b89\u88c5go\n[root@test01 init1]# wget https:\/\/golang.google.cn\/dl\/go1.18.4.linux-amd64.tar.gz\n[root@test01 init]# tar xf go1.18.4.linux-amd64.tar.gz -C \/usr\/local\/\n[root@test01 init]# ls \/usr\/local\/go\/bin\/\ngo  gofmt\n[root@test01 init]# echo &#039;export PATH=\/usr\/local\/go\/bin\/:$PATH&#039; &gt;&gt; \/etc\/profile\n[root@test01 init]# source \/etc\/profile\n\n# 2\u3001\u5de5\u4f5c\u76ee\u5f55\n[root@test01 init1]# cd \/root\/init\n[root@test01 init]# ls\ndockerfile  go.mod  main.go\n\n# 3\u3001\u521b\u5efago.mod\u6587\u4ef6\uff1avim go.mod\nmodule golang\n\ngo 1.17\n\n# 4\u3001\u7f16\u5199go\u4ee3\u7801\uff1avim run.go\npackage main \n\nimport ( \n    &quot;fmt&quot;\n    &quot;time&quot;\n) \n\nfunc main() { \n    fmt.Println(&quot;go\u4e3b\u8fdb\u7a0b...&quot;) \n    time.Sleep(1000000 * time.Second) \n}\n\n# 5\u3001\u7f16\u8bd1go\u7a0b\u5e8f\ngo build -v -o .\/run\n\n# 6\u3001\u7f16\u5199dockerfile\nFROM centos:7\n\nADD run \/opt\n\nCMD \/opt\/run\n\n# 7\u3001\u6784\u5efa\u955c\u50cf\uff0c\u5e76\u542f\u52a8\u5bb9\u5668\ndocker build -t gotest:v1.0 .\/\ndocker run -d --name test1 gotest:v1.0\n\n# 8\u3001\u8fdb\u5165\u5bb9\u5668\uff0c\u6267\u884ckill -9\u6216\u8005-19\u67401\u53f7\u8fdb\u7a0b\uff0c\u53d1\u73b0\u6839\u672c\u6740\u4e0d\u6b7b\n[root@test01 init]# docker exec -ti test1 sh\nsh-4.2# ps aux\nUSER      PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND\nroot        1  0.3  0.0 702760   960 ?        Ssl  10:28   0:00 \/opt\/run\nroot       11  0.5  0.0  11824  1656 pts\/0    Ss   10:28   0:00 sh\nroot       17  0.0  0.0  51732  1704 pts\/0    R+   10:28   0:00 ps aux\n\nsh-4.2# kill -9 1\nsh-4.2# kill -19 1\nsh-4.2# ps aux\nUSER      PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND\nroot        1  0.0  0.0 702760   960 ?        Ssl  10:28   0:00 \/opt\/run\nroot       11  0.0  0.0  11824  1656 pts\/0    Ss   10:28   0:00 sh\nroot       18  0.0  0.0  51732  1696 pts\/0    R+   10:29   0:00 ps aux\n<\/code><\/pre>\n<p>\u6848\u4f8b2\uff1apython\u7a0b\u5e8f\u4f5c\u4e3a1\u53f7\u8fdb\u7a0b<\/p>\n<pre><code class=\"language-bash\"># 1\u3001\u5de5\u4f5c\u76ee\u5f55\n[root@test01 init1]# cd \/root\/init1\/\n[root@test01 init1]# ls\ndockerfile  run.py\n\n# 2\u3001run.py\u5185\u5bb9\nimport time\n\nif __name__ == &quot;__main__&quot;:\n    print(&quot;hello world&quot;)\n    time.sleep(1000000)\n\n# 3\u3001dockerfile\u6587\u4ef6\u5185\u5bb9\nFROM centos:7\n\nADD run.py \/opt\n\nCMD python \/opt\/run.py\n\n# 4\u3001\u6784\u5efa\u955c\u50cf\uff0c\u5e76\u542f\u52a8\u5bb9\u5668\ndocker build -t pytest:v1.0 .\/\ndocker run -d --name test2 pytest:v1.0\n\n# 5\u3001\u8fdb\u5165\u5bb9\u5668\uff0c\u6267\u884ckill -9\u6216\u8005-19\u67401\u53f7\u8fdb\u7a0b\uff0c\u53d1\u73b0\u6839\u672c\u6740\u4e0d\u6b7b\n[root@test01 init1]# docker exec -ti test2 sh\nsh-4.2# ps -elf\nF S UID       PID PPID  C PRI  NI ADDR SZ WCHAN  STIME TTY          TIME CMD\n4 S root        1    0  0  80   0 -  5460 poll_s 10:11 ?        00:00:00 python \/opt\/run.py\n4 S root        6    0  0  80   0 -  2956 do_wai 10:11 pts\/0    00:00:00 sh\n4 R root       12    6  0  80   0 - 12933 -      10:11 pts\/0    00:00:00 ps -elf\nsh-4.2# kill -9 1\nsh-4.2# kill -19 1\nsh-4.2# ps -elf\nF S UID       PID PPID  C PRI  NI ADDR SZ WCHAN  STIME TTY          TIME CMD\n4 S root        1    0  0  80   0 -  5460 poll_s 10:11 ?        00:00:00 python \/opt\/run.py\n4 S root        6    0  0  80   0 -  2956 do_wai 10:11 pts\/0    00:00:00 sh\n0 R root       13    6  0  80   0 - 12933 -      10:11 pts\/0    00:00:00 ps -elf\nsh-4.2# \n<\/code><\/pre>\n<p>\u6848\u4f8b3\uff1abash\u4f5c\u4e3a1\u53f7\u8fdb\u7a0b<\/p>\n<pre><code class=\"language-bash\"># 1\u3001\u5de5\u4f5c\u76ee\u5f55\n[root@test01 init2]# cd \/root\/init2\/\n[root@test01 init2]# ls\ndockerfile  run.sh\n\n# 2\u3001run.sh\u5185\u5bb9\n[root@test01 init2]# cat run.sh \n#!\/bin\/bash\necho &quot;hello world&quot;\nsleep 1000000\n\n# 3\u3001dockerfile\u5185\u5bb9\n[root@test01 init2]# cat dockerfile \nFROM centos:7 \n\nADD run.sh \/opt\n\nCMD bash \/opt\/run.sh\n\n# 4\u3001\u6784\u5efa\u955c\u50cf\uff0c\u5e76\u542f\u52a8\u5bb9\u5668\ndocker build -t bashtest:v1.0 .\/\ndocker run -d --name test3 bashtest:v1.0\n\n# 5\u3001\u8fdb\u5165\u5bb9\u5668\uff0c\u6267\u884ckill -9\u6216\u8005-19\u67401\u53f7\u8fdb\u7a0b\uff0c\u53d1\u73b0\u6839\u672c\u6740\u4e0d\u6b7b\n[root@test01 init2]# docker exec -ti test3 sh\nsh-4.2# \nsh-4.2# ps aux\nUSER      PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND\nroot        1  0.1  0.0  11692  1356 ?        Ss   10:32   0:00 bash \/opt\/run.sh\nroot        6  0.0  0.0   4364   356 ?        S    10:32   0:00 sleep 1000000\nroot        7  1.0  0.0  11824  1660 pts\/0    Ss   10:32   0:00 sh\nroot       12  0.0  0.0  51732  1704 pts\/0    R+   10:32   0:00 ps aux\nsh-4.2# \nsh-4.2# kill -9 1\nsh-4.2# kill -9 1\nsh-4.2# ps aux\nUSER      PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND\nroot        1  0.0  0.0  11692  1356 ?        Ss   10:32   0:00 bash \/opt\/run.sh\nroot        6  0.0  0.0   4364   356 ?        S    10:32   0:00 sleep 1000000\nroot        7  0.0  0.0  11824  1660 pts\/0    Ss   10:32   0:00 sh\nroot       13  0.0  0.0  51732  1696 pts\/0    R+   10:32   0:00 ps aux<\/code><\/pre>\n<p>\u6848\u4f8b\u6f14\u793a\u5b8c\u6bd5<\/p>\n<ul>\n<li>\n<p>test1\u5bb9\u5668\u4e2d\uff0cgo\u7a0b\u5e8f\u4f5c\u4e3a1\u53f7\u8fdb\u7a0b<\/p>\n<\/li>\n<li>\n<p>test2\u5bb9\u5668\u4e2d\uff0cpython\u7a0b\u5e8f\u4f5c\u4e3a1\u53f7\u8fdb\u7a0b<\/p>\n<\/li>\n<li>\n<p>test3\u5bb9\u5668\u4e2d\uff0cbash\u7a0b\u5e8f\u4f5c\u4e3a1\u53f7\u8fdb\u7a0b<\/p>\n<\/li>\n<\/ul>\n<p>\u9a8c\u8bc1\u4e86\uff0c\u5728\u5bb9\u5668\u5185\u5bf91\u53f7\u8fdb\u7a0b\u53d1\u9001SIGKILL\uff08-9\uff09\u4e0eSIGSTOP\uff08-19\uff09\u4fe1\u53f7\u603b\u4f1a\u88ab\u5ffd\u7565\uff0c\u4f60\u662f\u65e0\u6cd5\u7528-9\u6216\u8005-19\u5f3a\u5236\u6740\u6b7b1\u53f7\u8fdb\u7a0b\u7684<\/p>\n<p><strong>====================\u300b\u4e3a\u4f55-15\u4fe1\u53f7\u5728\u5bb9\u5668\u5185\u4ec5\u4ec5\u53ea\u662f\u6709\u53ef\u80fd\u4f1a\u6740\u6b7b\u5bb9\u5668\u76841\u53f7\u8fdb\u7a0b\uff1f\uff1f\uff1f\u300a====================<\/strong><\/p>\n<p>\u57fa\u4e8e\u4e0a\u4e00\u5c0f\u8282\u6240\u8ff0\uff0c\u89e3\u6790\u539f\u56e0\u5982\u4e0b<\/p>\n<pre><code class=\"language-bash\">\u5f53\u4f60\u5728\u5bb9\u5668\u5185\uff0c\u5728\u5bb9\u5668\u5185\uff0c\u5728\u5bb9\u5668\u5185\uff0c\u4f7f\u7528kill -15\u7ed9\u5bb9\u5668\u5185\u5bb9\u5668\u5185\u5bb9\u5668\u5185\u76841\u53f7\u8fdb\u7a0b\uff0c\u5173\u4e8esig_task_ignored()\u7b2c\u4e8c\u4e2a\u6761\u4ef6\u91cc\u7684\u4e09\u4e2a\u5b50\u6761\u4ef6\n\n- \u6761\u4ef61\n\u5bf9\u4e8e\u5bb9\u5668\u5185\u76841\u53f7\u8fdb\u7a0b\u6765\u8bf4\uff0c\u6761\u4ef61\u6c38\u8fdc\u6210\u7acb\uff0c\u56e0\u4e3a1\u53f7\u8fdb\u7a0b\u5728\u521b\u5efa\u4e4b\u521d\u5c31\u4f1a\u88ab\u6253\u4e0aSIGNAL_UNKILLABLE \u6807\u7b7e\n\n- \u6761\u4ef62 \n\u53ef\u80fd\u6210\u7acb\u4e5f\u53ef\u80fd\u4e0d\u6210\u7acb\uff0c\u5982\u679c\u4f60\u4e3a1\u53f7\u8fdb\u7a0b\u6ce8\u518c\u8fc7-15\u4fe1\u53f7\u7684handler\uff0c\u90a3\u4e48\u91c7\u7528\u7684\u5c31\u4e0d\u662f\u9ed8\u8ba4\u7684handler\u5373SIG_DFL\uff0c\u672c\u6761\u4ef6\u4fbf\u4e0d\u6210\u7acb\uff0c\u53cd\u4e4b\uff0c\u5982\u679c\u4f60\u6ca1\u6709\u4e3a1\u53f7\u8fdb\u7a0b\u6ce8\u518c\u8fc7-15\u4fe1\u53f7\u7684hanlder\uff0c\u90a3\u4e48\u5c31\u7528\u9ed8\u8ba4\u7684handler\u5373SIG_DFL,\u672c\u6761\u4ef6\u5c31\u6210\u7acb\n\n- \u6761\u4ef63\n\u4f60\u662f\u5728\u5bb9\u5668\u5185\u6267\u884c\u7684kill\u547d\u4ee4\uff0c\u5e76\u53d1\u9001\u7684\u76ee\u6807\u8fdb\u7a0b\u4e5f\u662f\u5bb9\u5668\u5185\u8fdb\u7a0b\uff0c\u5e76\u4e14\u6b64\u5904\u8ba8\u8bba\u7684\u662f-15\u4fe1\u53f7\uff0c\n\u6240\u4ee5\u6761\u4ef63\u91ccforce\u503c\u4e3a0\u4ee3\u8868False\uff0csig_kernel_only(sig)\u5339\u914d-9\u6216-19\u624d\u4e3a\u771f\uff0c\u6b64\u5904\u4e3a-15\uff0c\u6240\u4ee5\u7ed3\u679c\u4e3aFalse\uff0c\u6761\u4ef63&quot;!(force &amp;&amp; sig_kernel_only(sig))&quot; \u5373&quot;!(False &amp;&amp; False)&quot;\u6700\u7ec8\u7ed3\u679c\u4e3aTrue\uff0c\u6240\u4ee5\u5728\u5f53\u524d\u573a\u666f\u4e0b\uff0c\u6761\u4ef63\u4e5f\u6c38\u8fdc\u6210\u7acb<\/code><\/pre>\n<p>\u5206\u6790\u5230\u8fd9\u91cc\uff0c\u5bf9\u6bd4\u4e4b\u524d\u5173\u4e8e-9\u4e0e-19\u7684\u5206\u6790\uff0c\u6211\u4eec\u53ef\u4ee5\u603b\u7ed3\u51fa\u7ed3\u8bba<\/p>\n<p>1\u3001-9\u4e0e-19\u4fe1\u53f7\u5728\u5bb9\u5668\u5185\uff0c\u662f\u65e0\u8bba\u5982\u4f55\u4e5f\u65e0\u6cd5\u6740\u6b7b1\u53f7\u8fdb\u7a0b\u7684<\/p>\n<p>2\u3001-15\u4fe1\u53f7\u5728\u5bb9\u5668\u5185\u80fd\u5426\u6740\u6b7b1\u53f7\u8fdb\u7a0b\uff0c\u53d6\u51b3\u4e8e1\u53f7\u8fdb\u7a0b\u6709\u6ca1\u6709\u4e3a-15\u4fe1\u53f7\u6ce8\u518chanlder\u5e76\u5728handler\u91cc\u6267\u884c\u9000\u51fa\u4ee3\u7801\uff0c\u5176\u4ed6\u7684\u6761\u4ef6\u90fd\u53ef\u4ee5\u4e0d\u7528\u5206\u6790\u4e86<\/p>\n<p>\u793a\u4f8b\u5982\u4e0b\uff1a\u6211\u4eec\u7ee7\u7eed\u6cbf\u7528\u4e0a\u4e00\u5c0f\u8282\u4e2d\u7684\u6848\u4f8b\uff0c\u8fd8\u662f\u90a3\u4e09\u4e2a\u5bb9\u5668test1\u3001test2\u3001test3<\/p>\n<p>\u6211\u4eec\u5148\u6765\u9a8c\u8bc1\u5728\u5bb9\u5668\u5185\u53d1\u9001SIGTERM\uff08-15\uff09\u4fe1\u53f7\u7ed91\u53f7\u8fdb\u7a0b\uff0c\u4e09\u4e2a\u5bb9\u5668\u76841\u53f7\u8fdb\u7a0b\u5206\u522b\u6709\u4f55\u53cd\u5e94<\/p>\n<p>1\u3001go\u7a0b\u5e8f\u4f5c\u4e3a1\u53f7\u8fdb\u7a0b\u54cd\u5e94\u4e86-15\u4fe1\u53f7\uff0c1\u53f7\u8fdb\u7a0b\u88ab\u5e72\u6389<\/p>\n<pre><code class=\"language-bash\">[root@test01 ~]# docker exec -ti test1 sh\nsh-4.2# ps aux\nUSER      PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND\nroot        1  0.0  0.0 702760   960 ?        Ssl  10:28   0:00 \/opt\/run\nroot       19  0.5  0.0  11824  1660 pts\/0    Ss   10:38   0:00 sh\nroot       24  0.0  0.0  51732  1696 pts\/0    R+   10:38   0:00 ps aux\nsh-4.2# kill -15 1 \nsh-4.2# [root@test01 ~]# \n\n# \u5206\u6790\ngolang\u7a0b\u5e8f\u91cc\uff0c\u9ed8\u8ba4\u5c31\u4e3a\u5f88\u591a\u4fe1\u53f7\u6ce8\u518c\u4e86\u81ea\u5df1\u7684handler\uff0c\u5305\u62ecSIGTEM(-15)\u4fe1\u53f7\uff0c\u4e5f\u5c31\u662fbit 15\uff0c\u6240\u4ee5\u5f53\u6211\u4eec\u4e3atest1\u76841\u53f7\u8fdb\u7a0b\u53d1\u9001-15\u4fe1\u53f7\u65f6\uff0c\u56e0\u4e3a\u6ce8\u518c\u4e86handler\uff0c\u6240\u4ee5\u91c7\u7528\u7684\u90e8\u7f72\u7f3a\u7701\u7684handler\uff0c\u80af\u5b9a\u540d\u5b57\u4e0d\u53ebSIG_DFL\uff0c\u56e0\u6b64\u6211\u4eec\u4e0a\u9762\u63d0\u5230\u7684\u6761\u4ef62\u4e0d\u6ee1\u8db3\uff0c\u8be5\u4fe1\u53f7\u6ca1\u6709\u88ab\u5ffd\u7565\u6389\uff0c\u6b63\u5e38\u6267\u884c\u4e86\u9000\u51fa<\/code><\/pre>\n<p>2\u3001python\u7a0b\u5e8f\u4f5c\u4e3a1\u53f7\u8fdb\u7a0b\uff0c\u6ca1\u6709\u54cd\u5e94-15\u8fdb\u7a0b\uff0c1\u53f7\u8fdb\u7a0b\u4f9d\u7136\u5b58\u5728<\/p>\n<pre><code class=\"language-bash\">sh-4.2# ps aux\nUSER      PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND\nroot        1  0.0  0.1  21840  4468 ?        Ss   10:11   0:00 python \/opt\/run.py\nroot       14  1.0  0.0  11824  1660 pts\/0    Ss   10:39   0:00 sh\nroot       20  0.0  0.0  51732  1704 pts\/0    R+   10:39   0:00 ps aux\nsh-4.2# kill -15 1\nsh-4.2# ps aux\nUSER      PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND\nroot        1  0.0  0.1  21840  4468 ?        Ss   10:11   0:00 python \/opt\/run.py\nroot       14  0.1  0.0  11824  1660 pts\/0    Ss   10:39   0:00 sh\nroot       21  0.0  0.0  51732  1696 pts\/0    R+   10:39   0:00 ps aux\nsh-4.2# \n\n# \u5206\u6790\npython\u89e3\u91ca\u5668\u4e5f\u6ca1\u6709\u6ce8\u518c-15\u4fe1\u53f7<\/code><\/pre>\n<p>3\u3001bash\u7a0b\u5e8f\u4f5c\u4e3a1\u53f7\u8fdb\u7a0b\uff0c\u4e5f\u6ca1\u6709\u54cd\u5e94-15\u8fdb\u7a0b\uff0c1\u53f7\u8fdb\u7a0b\u4f9d\u7136\u5b58\u5728<\/p>\n<pre><code class=\"language-bash\">[root@test01 ~]# docker exec -ti test3 sh\nsh-4.2# ps aux\nUSER      PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND\nroot        1  0.0  0.0  11692  1356 ?        Ss   10:32   0:00 bash \/opt\/run.sh\nroot        6  0.0  0.0   4364   356 ?        S    10:32   0:00 sleep 1000000\nroot       14  0.5  0.0  11824  1656 pts\/0    Ss   10:40   0:00 sh\nroot       19  0.0  0.0  51732  1696 pts\/0    R+   10:40   0:00 ps aux\nsh-4.2# kill -15 1\nsh-4.2# ps aux\nUSER      PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND\nroot        1  0.0  0.0  11692  1356 ?        Ss   10:32   0:00 bash \/opt\/run.sh\nroot        6  0.0  0.0   4364   356 ?        S    10:32   0:00 sleep 1000000\nroot       14  0.1  0.0  11824  1656 pts\/0    Ss   10:40   0:00 sh\nroot       20  0.0  0.0  51732  1696 pts\/0    R+   10:40   0:00 ps aux\nsh-4.2# \n\n# \u5206\u6790\n\u800cbash\u7a0b\u5e8f\u9ed8\u8ba4\u6ce8\u518c\u4e86\u4e24\u4e2ahandler\uff0c\u4e00\u4e2a\u662fbit 2\u4ee3\u8868\uff08SIGINT\uff09\uff0c\u53e6\u5916\u4e00\u4e2a\u662fbit 17\uff08\u4ee3\u8868SIGCHLD\uff09\uff0c\u4f46\u662f\u6ca1\u6709\u6ce8\u518cSIGTERM\uff0c\u6240\u4ee5\u4f9d\u7136\u91c7\u7528\u7684\u662f\u9ed8\u8ba4\u7684hanlder\uff0c\u540d\u4e3aSIG_DFL\uff0c\u56e0\u6b64\u4e0a\u9762\u7684\u6761\u4ef62\u6ee1\u8db3\uff0c\u8be5\u8fdb\u884c\u4f1a\u88ab\u5ffd\u7565\u6389<\/code><\/pre>\n<p>\u90a3\u5982\u679c\u6211\u4eec\u5728bash\u811a\u672c\u4e86\u4e3a-15\u4fe1\u53f7\u6ce8\u518c\u4e86\u81ea\u5df1\u7684handler\uff0c\u7136\u540e\u5728handler\u505a\u4e00\u4e9b\u6e05\u7406\u5de5\u4f5c\u4e4b\u540e\u6b63\u5e38exit\u9000\u51fa\uff0c\u4f60\u5728\u5bb9\u5668\u5185kill -15 1\u80af\u5b9a\u662f\u53ef\u4ee5\u5e72\u63891\u53f7\u8fdb\u7a0b\u7684\uff0c\u56e0\u4e3a\u6709\u6211\u4eec\u81ea\u5b9a\u4e49\u7684handler\uff0c\u4f60\u80af\u5b9a\u53ef\u4ee5\u505a\u5230\u5e73\u6ed1\u5173\u95ed\uff08\u4fdd\u8bc1\u505a\u597d\u6e05\u7406\u5de5\u4f5c\uff09<\/p>\n<p>\u5728\u4e0a\u9762\u7684bash\u6848\u4f8b\u7684\u57fa\u7840\u4e0a\uff0c\u4fee\u6539\u4e00\u4e0brun.sh\u7684\u5185\u5bb9\uff0c\u6b64\u5904\u6211\u4eec\u4f7f\u7528\u4e86shell\u8bed\u6cd5\u4e2d\u7684trap &#8216;\u547d\u4ee4&#8217; \u4fe1\u53f7\uff0c\u5f15\u53f7\u91cc\u7684\u547d\u4ee4\u5c31\u662f\u6211\u4eec\u4e3a\u4fe1\u53f7\u6ce8\u518c\u7684handler\uff0c\u4e00\u65e6\u811a\u672c\u8fdb\u7a0b\u6536\u5230\u8be5\u8fdb\u884c\u5219\u89e6\u53d1handler\u7684\u8fd0\u884c<\/p>\n<pre><code class=\"language-bash\"># 1\u3001run.sh\u5185\u5bb9\n[root@test01 init3]# cat run.sh \n#!\/bin\/bash\ntrap &quot;echo &#039;\u6355\u6349\u5230\u4fe1\u53f7TERM\u53ef\u4ee5\u5728\u6b64\u6267\u884c\u4e00\u7cfb\u5217\u7684\u6e05\u7406\u5de5\u4f5c&#039; &amp;&amp; exit 0&quot; TERM # \u5982\u679c\u662f\u540e\u53f0\u8fd0\u884c\uff0c\u90a3echo\u7684\u6253\u5370\u5185\u5bb9\u5e76\u4e0d\u4f1a\u663e\u793a\u5230\u5f53\u524d\u7ec8\u7aef\necho $$\nwhile true;\ndo\n    sleep 0.5 # \u4e0d\u8981\u5728\u9ed8\u8ba4\u6765\u4e00\u4e2asleep 100000\uff0c\u90a3\u4e48bash\u76f4\u63a5\u5c31\u505c\u5728\u539f\u5730\u4e86\uff0ctrap\u5f15\u53f7\u91cc\u7684\u547d\u4ee4\u662f\u65e0\u6cd5\u6267\u884c\u7684\ndone\n\n# 2\u3001dockerfile\u5185\u5bb9\n[root@test01 init3]# cat dockerfile \nFROM centos:7 \n\nADD run.sh \/opt\n\nCMD bash \/opt\/run.sh\n\n# 2\u3001\u5236\u4f5c\u955c\u50cf\u5e76\u542f\u52a8\u5bb9\u5668\ndocker build -t bashtest:v2.0 .\/\ndocker run -d --name test4 bashtest:v2.0 \n\n# 3\u3001\u8fdb\u5165\u5bb9\u5668\u5185\uff0c\u6267\u884ckill -15 1\uff0c\u6b64\u65f6\u662f\u53ef\u4ee5\u6740\u6b7b1\u53f7\u8fdb\u7a0b\u7684\n[root@test01 init3]# docker exec -ti test4 sh\nsh-4.2# ps aux\nUSER      PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND\nroot        1  0.4  0.0  11692  1380 ?        Ss   01:44   0:00 bash \/opt\/run.sh\nroot       34  1.5  0.0  11824  1656 pts\/0    Ss   01:44   0:00 sh\nroot       43  0.0  0.0   4364   356 ?        S    01:44   0:00 sleep 0.5\nroot       44  0.0  0.0  51732  1696 pts\/0    R+   01:44   0:00 ps aux\nsh-4.2# kill -15 1 # \u6b64\u65f6-15\u4fe1\u53f7\u5c31\u53ef\u4ee5\u6740\u6b7b1\u53f7\u8fdb\u7a0b\u4e86\nsh-4.2# [root@test01 init3]# \n<\/code><\/pre>\n<p>\u66f4\u591a\u5173\u4e8eshell\u4fe1\u53f7\u7684\u77e5\u8bc6\u8be6\u89c1\uff1a<\/p>\n<p><a href=\"https:\/\/egonlin.com\/?p=407\">https:\/\/egonlin.com\/?p=407<\/a><\/p>\n<p>\u6211\u4eec\u5df2\u7ecf\u77e5\u9053\u4e86bash\u5982\u4f55\u6ce8\u518c\u4fe1\u53f7\uff0c\u4e0b\u9762\u6f14\u793a\u4e00\u4e0bpython\u5982\u4f55\u6ce8\u518c\u4fe1\u53f7<\/p><div id=\"rml_readmorelogin_placeholder\" style=\"position:relative;\"><div id=\"rml_fade_content\" style=\"position: absolute;\r\ntop:-10em;\r\nwidth:100%;\r\nheight:10em;\r\nbackground: -webkit-linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\r\nbackground-image: -moz-linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\r\nbackground-image: -o-linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\r\nbackground-image: linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\r\nbackground-image: -ms-linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\"><\/div><div class=\"wpf-controller aru_rml_from_in_post\" style=\"background-color:#eeeeee;border:5px solid #cce6ff;\" id=\"ARU_ReadMoreLogin_ReadMoreLoginController\"><h2 id=\"Header\">\u67e5\u770b\u66f4\u591a<\/h2><div id=\"Message\"><p>\u8054\u7cfb\u7ba1\u7406\u5458\u5fae\u4fe1tutu19192010\uff0c\u6ce8\u518c\u8d26\u53f7<\/p>\n<\/div><div id=\"StatusBarHeader\"><\/div><form id=\"ARU_ReadMoreLogin_ReadMoreLoginController\"><input name=\"post_id\" value=\"7096\" type=\"hidden\"\/><input name=\"_init_callback\" value=\"InitLogin\" type=\"hidden\"\/><input name=\"post_id\" value=\"7096\" type=\"hidden\"\/><input name=\"rt_ype\" value=\"1\" type=\"hidden\"\/><input name=\"nonce\" value=\"590190a677\" type=\"hidden\"\/><input name=\"_wpnonce\" value=\"b0e6d8f8bf\" type=\"hidden\"\/><input name=\"_controller\" value=\"ARU_ReadMoreLogin\\ReadMoreLoginController\" type=\"hidden\"\/><input name=\"_proxy_controller\" value=\"ARU_ReadMoreLogin\\ReadMoreLoginController\" type=\"hidden\"\/><input name=\"_view\" value=\"ARU_ReadMoreLogin\\ReadMoreLoginView\" type=\"hidden\"\/><table class=\"wpf-table-placeholder\"><tbody class=\"wpf-table-placeholder\"><tr class=\"wpf-table-placeholder\"><td class=\"wpf-table-placeholder-input\" width=\"400px\"><table class=\"wpf-table-placeholder\"><tbody class=\"wpf-table-placeholder\"><tr class=\"wpf-table-placeholder\"><th class=\"wpf-table-placeholder-input\"><label class=\"wpf-label\">Username:<\/label><\/th><\/tr><tr class=\"wpf-table-placeholder\"><td class=\"wpf-table-placeholder-input\"><input class=\"regular-text text_input\" name=\"username\" value=\"\" type=\"text\"\/><\/td><\/tr><tr class=\"wpf-table-placeholder\"><th class=\"wpf-table-placeholder-input\"><label class=\"wpf-label\">Password:<\/label><\/th><\/tr><tr class=\"wpf-table-placeholder\"><td class=\"wpf-table-placeholder-input\"><input class=\"regular-text text_input\" name=\"password\" value=\"\" type=\"password\"\/><\/td><\/tr><\/tbody><\/table><p class=\"wpf-table-placeholder submit\"><button class=\"wp_plugin_framework_ajax_button\" type=\"button\" style=\"background-color:#4D90FE;;color:#ffffff;;border:1px solid #3079ed;\" name=\"_event\" value=\"ButtonLogin\">Log in<\/button><\/p><\/td><td class=\"wpf-table-placeholder-input\"><\/td><\/tr><\/tbody><\/table><\/form><div id=\"ButtonStartRegister\"><a href=\"https:\/\/egonlin.com\/wp-login.php?action=register\">Register<\/a><\/div><div id=\"Link1\"><a href=\"https:\/\/egonlin.com\/wp-login.php?action=lostpassword\">Forgotten username or password?<\/a><\/div><div id=\"StatusBarFooter\"><\/div><\/div><\/div><div id=aru_remaining_content><\/div>","protected":false},"excerpt":{"rendered":"<p>\u4e00 \u5bb9\u5668\u5185\u7684\u4e24\u4e2a\u7279\u6b8a\u8fdb\u7a0b 1.1 \u4ecb\u7ecd \u5bb9\u5668\u6b63\u5e38\u542f\u52a8\u540e\uff0c\u4f7f\u7528docker exec contaienrID b [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[120],"tags":[],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/7096"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7096"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/7096\/revisions"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7096"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7096"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7096"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}