{"id":571,"date":"2021-07-28T21:10:55","date_gmt":"2021-07-28T13:10:55","guid":{"rendered":"https:\/\/egonlin.com\/?p=571"},"modified":"2021-07-30T10:38:47","modified_gmt":"2021-07-30T02:38:47","slug":"%e6%95%b0%e6%8d%ae%e5%ba%93%e4%bc%98%e5%8c%96","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=571","title":{"rendered":"\u6570\u636e\u5e93\u4f18\u5316"},"content":{"rendered":"<h1>\u6570\u636e\u5e93\u4f18\u5316<\/h1>\n<h2>\u4e00\u3001\u6570\u636e\u5e93\u786c\u4ef6\u4f18\u5316\uff08\u9009\u578b\uff09<\/h2>\n<h3>1.\u4e00\u822c\u6570\u636e\u5e93\u9009\u62e9<\/h3>\n<pre><code class=\"language-bash\">1.\u771f\u5b9e\u7684\u786c\u4ef6\uff0c\u7269\u7406\u673a\n2.\u4e91\u4ea7\u54c1ECS\uff0c\u81ea\u5df1\u642d\u5efa\u6570\u636e\u5e93\n3.\u4e91\u6570\u636e\u5e93\uff08RDS\u3001DRDS\uff09<\/code><\/pre>\n<h3>2.\u6570\u636e\u5e93\u7c7b\u578b<\/h3>\n<pre><code class=\"language-bash\">1.OLTP   \u5728\u7ebf\u4e8b\u52a1\u5904\u7406\u7cfb\u7edf\n    \u652f\u6301\u5927\u91cf\u5e76\u53d1\u7528\u6237\u5b9a\u671f\u6dfb\u52a0\u548c\u4fee\u6539\u6570\u636e\u3002\n    \u53cd\u6620\u968f\u65f6\u53d8\u5316\u7684\u5355\u4f4d\u72b6\u6001\uff0c\u4f46\u4e0d\u4fdd\u5b58\u5176\u5386\u53f2\u8bb0\u5f55\u3002\n    \u5305\u542b\u5927\u91cf\u6570\u636e\uff0c\u5176\u4e2d\u5305\u62ec\u7528\u4e8e\u9a8c\u8bc1\u4e8b\u52a1\u7684\u5927\u91cf\u6570\u636e\u3002\n    \u53ef\u4ee5\u8fdb\u884c\u4f18\u5316\u4ee5\u5bf9\u4e8b\u52a1\u6d3b\u52a8\u505a\u51fa\u54cd\u5e94\u3002\n    \u63d0\u4f9b\u7528\u4e8e\u652f\u6301\u5355\u4f4d\u65e5\u5e38\u8fd0\u8425\u7684\u6280\u672f\u57fa\u7840\u7ed3\u6784\u3002\n    \u4e2a\u522b\u4e8b\u52a1\u80fd\u591f\u5f88\u5feb\u5730\u5b8c\u6210\uff0c\u5e76\u4e14\u53ea\u9700\u8bbf\u95ee\u76f8\u5bf9\u8f83\u5c11\u7684\u6570\u636e\u3002\n    \u5b9e\u65f6\u6027\u8981\u6c42\u9ad8\u3002\n    \u4ea4\u6613\u4e00\u822c\u662f\u786e\u5b9a\u7684\uff0c\u6240\u4ee5OLTP\u662f\u5bf9\u786e\u5b9a\u6027\u7684\u6570\u636e\u8fdb\u884c\u5b58\u53d6\u3002(\u6bd4\u5982\u5b58\u53d6\u6b3e\u90fd\u6709\u4e00\u4e2a\u7279\u5b9a\u7684\u91d1\u989d)\n    \u5e76\u53d1\u6027\u8981\u6c42\u9ad8\u5e76\u4e14\u4e25\u683c\u7684\u8981\u6c42\u4e8b\u52a1\u7684\u5b8c\u6574\u3001\u5b89\u5168\u6027\u3002\n\n2.OLAP   \u6570\u636e\u4ed3\u5e93\uff0c\u6570\u636e\u5904\u7406\uff0c\u6570\u636e\u5c55\u793a\uff08\u4f7f\u7528nosql\u66f4\u9002\u5408\uff09\n    ROLAP\n    MOLAP\n    HOLAP<\/code><\/pre>\n<h3>3.\u786c\u4ef6\u9009\u578b<\/h3>\n<h4>1\uff09CPU\u9009\u578b<\/h4>\n<pre><code class=\"language-bash\">1.IO\u5bc6\u96c6\u578b\uff1a\u7ebf\u4e0a\u7cfb\u7edf\uff0cOLTP\u4e3b\u8981\u662fIO\u5bc6\u96c6\u578b\u7684\u4e1a\u52a1\uff0c\u9ad8\u5e76\u53d1\uff08OLTP\uff09\uff0cE\u7cfb\u5217\uff08\u81f3\u5f3a\uff09\uff0c\u4e3b\u9891\u76f8\u5bf9\u4f4e\uff0c\u6838\u5fc3\u6570\u91cf\u591a\n2.CPU\u5bc6\u96c6\u578b\uff1a\u6570\u636e\u5206\u6790\u6570\u636e\u5904\u7406\uff0cOLAP\uff0ccpu\u5bc6\u96c6\u578b\u7684\uff0c\u9700\u8981CPU\u9ad8\u8ba1\u7b97\u80fd\u529b\uff08OLAP\uff0c\u4e0d\u9700\u8981\u5f88\u9ad8\u7684\u5e76\u53d1\uff0c\u8ba1\u7b97\u53ea\u7528\u4e00\u4e2a\u7528\u6237\u5c31\u53ef\u4ee5\u4e86\uff09\uff0cI\u7cfb\u5217\u7684\uff08IBM\uff09\uff0c\u4e3b\u9891\u5f88\u9ad8\uff0c\u6838\u5fc3\u5c11 \uff08\u6253\u6e38\u620f\u4e00\u822c\u9009\u62e9CPU\u5bc6\u96c6\u578b\uff09<\/code><\/pre>\n<h4>2\uff09\u5185\u5b58\u9009\u62e9<\/h4>\n<pre><code class=\"language-bash\">1.\u5efa\u8bae2-3\u500dcpu\u6838\u5fc3\u6570\u91cf \uff08ECC\uff09\n2.\u5185\u5b58\u8d8a\u5927\u5b83\u4f7f\u7528\u8d8a\u591a\uff0c\u6d6a\u8d39\u8d8a\u591a\uff0c\u547d\u4e2d\u7387\u8d8a\u4f4e<\/code><\/pre>\n<h4>3\uff09\u78c1\u76d8\u9009\u62e9<\/h4>\n<pre><code class=\"language-bash\">1.SATA-III   \n2.SAS    \n3.Fc    \n4.SSD\uff08sata\uff09 \n    pci-e  \u7ea7\u522b\n    Flash  \u7ea7\u522b<\/code><\/pre>\n<h4>4\uff09\u5b58\u50a8\u9009\u62e9\uff08\u4e00\u822c\u5927\u578b\u4f01\u4e1a\uff09<\/h4>\n<h4>5\uff09\u7f51\u7edc\u9009\u62e9<\/h4>\n<pre><code class=\"language-bash\">1.\u786c\u4ef6\u4e70\u597d\u7684\uff08\u5355\u5361\u5355\u53e3\uff0c\u7f51\u5361\u6709\u5f88\u591a\u4e2a\u53e3\uff0c\u9009\u62e9\u5355\u53e3\u7684\uff0c\u6027\u80fd\u66f4\u597d\uff09\n    \u4e00\u822c\u53ef\u4ee5\u63d24\u5757\u5361\uff0c\u4e24\u4e2a\u5185\u7f51\u4e24\u4e2a\u5916\u7f51\uff0c\u907f\u514d\u4e00\u5757\u51fa\u73b0\u95ee\u9898\u5c31\u6302\u6389\n2.\u7f51\u5361\u7ed1\u5b9a\uff08bonding\uff09\uff0c\u4ea4\u6362\u673a\u5806\u53e0\n    \u610f\u601d\u5c31\u50cf\u8d1f\u8f7d\u5747\u8861\uff0c\u5c06\u4e24\u5757\u7f51\u5361\u903b\u8f91\u7ed1\u5b9a\uff0c\u4e00\u4e2a\u7f51\u5361\u7ed1\u5b9a\u4e00\u4e2a\u4ea4\u6362\u673a\uff0c\u5982\u679c\u505a\u4e86\u7f51\u5361\u7ed1\u5b9a\uff0c\u4ea4\u6362\u673a\u4e5f\u4e00\u5b9a\u8981\u505a\u5806\u53e0\n    \u7ed1\u5b9a\u65b9\u5f0f\uff1a\u8d1f\u8f7d\u5747\u8861\u6a21\u5f0f\uff0c\u4e3b\u5907\u6a21\u5f0f<\/code><\/pre>\n<h3>4.\u64cd\u4f5c\u7cfb\u7edf\u4f18\u5316<\/h3>\n<h4>1\uff09Swap\u8c03\u6574<\/h4>\n<pre><code class=\"language-bash\">echo 0 &gt;\/proc\/sys\/vm\/swappiness\u7684\u5185\u5bb9\u6539\u62100\uff08\u4e34\u65f6\uff09\uff0c\n\n\/etc\/sysctl.conf \u4e0a\u6dfb\u52a0 vm.swappiness=0\uff08\u6c38\u4e45\uff09\nsysctl -p\n\n\u8fd9\u4e2a\u53c2\u6570\u51b3\u5b9a\u4e86Linux\u662f\u503e\u5411\u4e8e\u4f7f\u7528swap\uff0c\u8fd8\u662f\u503e\u5411\u4e8e\u91ca\u653e\u6587\u4ef6\u7cfb\u7edfcache\u3002\u5728\u5185\u5b58\u7d27\u5f20\u7684\u60c5\u51b5\u4e0b\uff0c\u6570\u503c\u8d8a\u4f4e\u8d8a\u503e\u5411\u4e8e\u91ca\u653e\u6587\u4ef6\u7cfb\u7edfcache\u3002\n\u5f53\u7136\uff0c\u8fd9\u4e2a\u53c2\u6570\u53ea\u80fd\u51cf\u5c11\u4f7f\u7528swap\u7684\u6982\u7387\uff0c\u5e76\u4e0d\u80fd\u907f\u514dLinux\u4f7f\u7528swap\u3002<\/code><\/pre>\n<h4>2\uff09IO\u8c03\u5ea6\u7b56\u7565<\/h4>\n<pre><code class=\"language-bash\">centos 7 \u9ed8\u8ba4\u662fdeadline\ncat \/sys\/block\/sda\/queue\/scheduler\n\n#\u4e34\u65f6\u4fee\u6539\u4e3adeadline(centos6)\necho deadline &gt; \/sys\/block\/sda\/queue\/scheduler \n\nvi \/boot\/grub\/grub.conf\n\u66f4\u6539\u5230\u5982\u4e0b\u5185\u5bb9:\nkernel \/boot\/vmlinuz-2.6.18-8.el5 ro root=LABEL=\/ elevator=deadline rhgb quiet<\/code><\/pre>\n<h3>5.\u5e94\u7528\u7aef\u4f18\u5316<\/h3>\n<pre><code class=\"language-bash\">1. \u51cf\u5c11\u70c2SQL\uff1a\u4e0d\u8d70\u7d22\u5f15\uff0c\u590d\u6742\u903b\u8f91\uff0c\u5207\u5272\u5927\u4e8b\u52a1\uff08\u63d2\u5165100\u4e07\u6761\u6570\u636e\u53ef\u4ee5\u62c6\u6210100\u6761\u63d2\u5165\u4e00\u6b21\uff09\n2. \u907f\u514d\u4e1a\u52a1\u903b\u8f91\u9519\u8bef\n3. \u8bf4\u767d\u4e86\u5c31\u662f\u4f7f\u7528\u6570\u636e\u5e93\u65f6\uff0c\u64cd\u4f5c\u6807\u51c6\u4e00\u4e9b<\/code><\/pre>\n<h2>\u4e8c\u3001\u521b\u5efa\u6570\u636e\u5e93<\/h2>\n<h3>1.\u521b\u5efa\u4e00\u4e2a\u5e93\u4e00\u4e2a\u8868\uff0c\u5e76\u63d2\u5165100\u4e07\u6570\u636e<\/h3>\n<pre><code class=\"language-bash\">#\u521b\u5efa\u5e93\ncreate database opt\nuse opt\n#\u521b\u5efa\u8868\ncreate table test(id int(11),num int(11),k1 char(2),k2 char(4),dt timestamp not null);\n\n#\u63d2\u5165100\u4e07\u6570\u636e\ndelimiter \/\/\ncreate procedure rand_data(in num int)\nbegin\ndeclare str char(62) default &#039;abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890&#039;;\ndeclare str2 char(2);\ndeclare str4 char(4);\ndeclare i int default 0;\nwhile i&lt;num do\nset str2=concat(substring(str,1+floor(rand()*61),1),substring(str,1+floor(rand()*61),1));\nset str4=concat(substring(str,1+floor(rand()*61),2),substring(str,1+floor(rand()*61),2));\nset i=i+1;\ninsert into test values(i,floor(rand()*num),str2,str4,now());\nend while;\nend;\n\/\/\ndelimiter;\n\nmysql&gt; call rand_data(1000000);<\/code><\/pre>\n<h3>2.\u67e5\u770b\u6570\u636e\u53ef\u7528\u6027<\/h3>\n<pre><code class=\"language-bash\">mysql -uroot -p123\nselect count(*) from opt.test;<\/code><\/pre>\n<h3>3.\u8fdb\u884c\u538b\u529b\u6d4b\u8bd5<\/h3>\n<pre><code class=\"language-bash\">mysqlslap --defaults-file=\/etc\/my.cnf \\\n--concurrency=100 --iterations=1 --create-schema=&#039;opt&#039; \\\n--query=&quot;select * from opt.test where num=&#039;505037&#039;&quot; engine=innodb \\\n--number-of-queries=20000 -uroot -p123 -verbose<\/code><\/pre>\n<h2>\u4e09\u3001\u6570\u636e\u5e93\u53c2\u6570\u4f18\u5316<\/h2>\n<h3>1.Max_connections<\/h3>\n<pre><code class=\"language-bash\">1.\u7b80\u4ecb\nMysql\u7684\u6700\u5927\u8fde\u63a5\u6570\uff0c\u5982\u679c\u670d\u52a1\u5668\u7684\u5e76\u53d1\u8bf7\u6c42\u91cf\u6bd4\u8f83\u5927\uff0c\u53ef\u4ee5\u8c03\u9ad8\u8fd9\u4e2a\u503c\uff0c\u5f53\u7136\u8fd9\u662f\u8981\u5efa\u7acb\u5728\u673a\u5668\u80fd\u591f\u652f\u6491\u7684\u60c5\u51b5\u4e0b\uff0c\u56e0\u4e3a\u5982\u679c\u8fde\u63a5\u6570\u8d8a\u6765\u8d8a\u591a\uff0cmysql\u4f1a\u4e3a\u6bcf\u4e2a\u8fde\u63a5\u63d0\u4f9b\u7f13\u51b2\u533a\uff0c\u5c31\u4f1a\u5f00\u9500\u7684\u8d8a\u591a\u7684\u5185\u5b58\uff0c\u6240\u4ee5\u9700\u8981\u9002\u5f53\u7684\u8c03\u6574\u8be5\u503c\uff0c\u4e0d\u80fd\u968f\u4fbf\u53bb\u63d0\u9ad8\u8bbe\u503c\u3002\n\n2.\u67e5\u770b\u65b9\u5f0f\nmysql&gt; show variables like &#039;max_connections&#039;;\nmysql&gt; select @@max_connections;\n#\u67e5\u770b\u5df2\u7ecf\u4f7f\u7528\u591a\u5c11\nmysql&gt; show status like &#039;Max_used_connections&#039;;\n\n3.\u4e00\u822c\u914d\u7f6e\nvim \/etc\/my.cnf \nMax_connections=1024\n\n4.\u8865\u5145:\n    1.\u5f00\u542f\u6570\u636e\u5e93\u65f6,\u6211\u4eec\u53ef\u4ee5\u4e34\u65f6\u8bbe\u7f6e\u4e00\u4e2a\u6bd4\u8f83\u5927\u7684\u6d4b\u8bd5\u503c\n    2.\u89c2\u5bdfshow status like &#039;Max_used_connections&#039;;\u53d8\u5316\n    3.\u5982\u679cmax_used_connections\u8ddfmax_connections\u76f8\u540c,\u90a3\u4e48\u5c31\u662fmax_connections\u8bbe\u7f6e\u8fc7\u4f4e\u6216\u8005\u8d85\u8fc7\u670d\u52a1\u5668\u7684\u8d1f\u8f7d\u4e0a\u9650\u4e86\uff0c\u4f4e\u4e8e10%\u5219\u8bbe\u7f6e\u8fc7\u5927.\n\n#\u989d\u5916\u6307\u6807\nIOPS    \u6bcf\u79d2\u652f\u6301\u7684IO\nconnections \u8fde\u63a5\u6570\nTPS     \u6bcf\u79d2\u6700\u591a\u5141\u8bb8\u7684\u4e8b\u52a1\nQPS     \u6bcf\u79d2\u6700\u591a\u7684\u67e5\u8be2\u91cf<\/code><\/pre>\n<h3>2.back_log<\/h3>\n<pre><code class=\"language-bash\">1.\u7b80\u4ecb\uff1a\nmysql\u80fd\u6682\u5b58\u7684\u8fde\u63a5\u6570\u91cf\uff0c\u5f53\u4e3b\u8981mysql\u7ebf\u7a0b\u5728\u4e00\u4e2a\u5f88\u77ed\u65f6\u95f4\u5185\u5f97\u5230\u975e\u5e38\u591a\u7684\u8fde\u63a5\u8bf7\u6c42\u65f6\u5019\u5b83\u5c31\u4f1a\u8d77\u4f5c\u7528\uff0c\u5982\u679cmysql\u7684\u8fde\u63a5\u6570\u636e\u8fbe\u5230max_connections\u65f6\u5019\uff0c\u65b0\u6765\u7684\u8bf7\u6c42\u5c06\u4f1a\u88ab\u5b58\u5728\u5806\u6808\u4e2d\uff0c\u7b49\u5f85\u67d0\u4e00\u8fde\u63a5\u91ca\u653e\u8d44\u6e90\uff0c\u8be5\u63a8\u6808\u7684\u6570\u91cf\u53caback_log\uff0c\u5982\u679c\u7b49\u5f85\u8fde\u63a5\u7684\u6570\u91cf\u8d85\u8fc7back_log\uff0c\u5c06\u4e0d\u88ab\u6388\u4e88\u8fde\u63a5\u8d44\u6e90\u3002\nback_log\u503c\u6307\u51fa\u5728mysql\u6682\u65f6\u505c\u6b62\u56de\u7b54\u65b0\u8bf7\u6c42\u4e4b\u524d\u7684\u77ed\u65f6\u95f4\u5185\u6709\u591a\u5c11\u4e2a\u8bf7\u6c42\u53ef\u4ee5\u88ab\u5b58\u5728\u63a8\u6808\u4e2d\uff0c\u53ea\u6709\u5982\u679c\u671f\u671b\u5728\u4e00\u4e2a\u77ed\u65f6\u95f4\u5185\u6709\u5f88\u591a\u8fde\u63a5\u7684\u65f6\u5019\u9700\u8981\u589e\u52a0\u5b83\n\n2.\u67e5\u770b\u65b9\u5f0f\nmysql&gt; show variables like &#039;%back_log%&#039;;\nmysql&gt; select @@back_log;\n#\u67e5\u770b\u6709\u6ca1\u6709\u7b49\u5f85\u7684\uff0c\u5982\u53d1\u73b0\u5927\u91cf\u7684\u5f85\u8fde\u63a5\u8fdb\u7a0b\u65f6\uff0c\u5c31\u9700\u8981\u52a0\u5927back_log\u6216\u8005\u52a0\u5927max_connections\u7684\u503c\nmysql&gt; show full processlist\n\n3.\u914d\u7f6e\u65b9\u5f0f\nvim \/etc\/my.cnf \nback_log=1024<\/code><\/pre>\n<h3>3.wait_timeout\u548cinteractive_timeout<\/h3>\n<pre><code class=\"language-bash\">1.\u7b80\u4ecb\nwait_timeout\uff1a\u6307\u7684\u662fmysql\u5728\u5173\u95ed\u4e00\u4e2a\u975e\u4ea4\u4e92\u7684\u8fde\u63a5\u4e4b\u524d\u6240\u8981\u7b49\u5f85\u7684\u79d2\u6570\ninteractive_timeout\uff1a\u6307\u7684\u662fmysql\u5728\u5173\u95ed\u4e00\u4e2a\u4ea4\u4e92\u7684\u8fde\u63a5\u4e4b\u524d\u6240\u9700\u8981\u7b49\u5f85\u7684\u79d2\u6570\uff0c\u6bd4\u5982\u6211\u4eec\u5728\u7ec8\u7aef\u4e0a\u8fdb\u884cmysql\u7ba1\u7406\uff0c\u4f7f\u7528\u7684\u5373\u4f7f\u4ea4\u4e92\u7684\u8fde\u63a5\uff0c\u8fd9\u65f6\u5019\uff0c\u5982\u679c\u6ca1\u6709\u64cd\u4f5c\u7684\u65f6\u95f4\u8d85\u8fc7\u4e86interactive_timeout\u8bbe\u7f6e\u7684\u65f6\u95f4\u5c31\u4f1a\u81ea\u52a8\u7684\u65ad\u5f00\uff0c\u9ed8\u8ba4\u7684\u662f28800\uff0c\u53ef\u8c03\u4f18\u4e3a7200\u3002\nwait_timeout:\u5982\u679c\u8bbe\u7f6e\u592a\u5c0f\uff0c\u90a3\u4e48\u8fde\u63a5\u5173\u95ed\u7684\u5c31\u5f88\u5feb\uff0c\u4ece\u800c\u4f7f\u4e00\u4e9b\u6301\u4e45\u7684\u8fde\u63a5\u4e0d\u8d77\u4f5c\u7528\n#interactive_timeout\u7c7b\u4f3c\u8df3\u677f\u673a\uff0c\u8fc7\u4e86\u591a\u4e45\u6ca1\u64cd\u4f5c\u5c31\u4f1a\u8e22\u6389\u4f60\uff0c\u9700\u8981\u91cd\u65b0\u8fde\u63a5\n\n2.\u67e5\u770b\u65b9\u5f0f\nmysql&gt; select @@wait_timeout;\nmysql&gt; select @@interactive_timeout;\n#\u9ed8\u8ba4\u7684\u90fd\u662f\u662f28800\uff0c\u53ef\u8c03\u4f18\u4e3a7200\u3002\n\n3.\u914d\u7f6e\u65b9\u5f0f\uff08\u914d\u7f6e\u8fd9\u4e2a\u53ef\u4ee5\u51cf\u8f7b\u5185\u5b58\u7684\u538b\u529b\uff09\nwait_timeout=60\ninteractive_timeout=1200\n#\u5982\u679c\u8bbe\u7f6e\u592a\u5927\uff0c\u5bb9\u6613\u9020\u6210\u8fde\u63a5\u6253\u5f00\u65f6\u95f4\u8fc7\u957f\uff0c\u5728show processlist\u65f6\u5019\uff0c\u80fd\u770b\u5230\u5f88\u591a\u7684\u8fde\u63a5 \uff0c\u4e00\u822c\u5e0c\u671bwait_timeout\u5c3d\u53ef\u80fd\u4f4e\n#\u957f\u8fde\u63a5\u7684\u5e94\u7528\uff0c\u4e3a\u4e86\u4e0d\u53bb\u53cd\u590d\u7684\u56de\u6536\u548c\u5206\u914d\u8d44\u6e90\uff0c\u964d\u4f4e\u989d\u5916\u7684\u5f00\u9500\u3002\u4e00\u822c\u6211\u4eec\u4f1a\u5c06wait_timeout\u8bbe\u5b9a\u6bd4\u8f83\u5c0f\uff0cinteractive_timeout\u8981\u548c\u5e94\u7528\u5f00\u53d1\u4eba\u5458\u6c9f\u901a\u957f\u94fe\u63a5\u7684\u5e94\u7528\u662f\u5426\u5f88\u591a\u3002\u5982\u679c\u4ed6\u9700\u8981\u957f\u94fe\u63a5\uff0c\u90a3\u4e48\u8fd9\u4e2a\u503c\u53ef\u4ee5\u4e0d\u9700\u8981\u8c03\u6574\u3002<\/code><\/pre>\n<h3>4.key_buffer_size<\/h3>\n<pre><code class=\"language-bash\">1.\u7b80\u4ecb\nkey_buffer_size\u6307\u5b9a\u7d22\u5f15\u7f13\u51b2\u533a\u7684\u5927\u5c0f\uff0c\u5b83\u51b3\u5b9a\u7d22\u5f15\u5904\u7406\u7684\u901f\u5ea6\uff0c\u5c24\u5176\u662f\u7d22\u5f15\u8bfb\u7684\u901f\u5ea6\n    1)\u6b64\u53c2\u6570\u4e0emyisam\u8868\u7684\u7d22\u5f15\u6709\u5173\n    select table_name,engine from information_schema.tables where engine=&#039;myisam&#039;;\n    2)\u4e34\u65f6\u8868\u7684\u521b\u5efa\u6709\u5173\uff08\u591a\u8868\u94fe\u63a5\u3001\u5b50\u67e5\u8be2\u4e2d\u3001union\uff09\n        \u5728\u6709\u4ee5\u4e0a\u67e5\u8be2\u8bed\u53e5\u51fa\u73b0\u7684\u65f6\u5019\uff0c\u9700\u8981\u521b\u5efa\u4e34\u65f6\u8868\uff0c\u7528\u5b8c\u4e4b\u540e\u4f1a\u88ab\u4e22\u5f03\n        \u4e34\u65f6\u8868\u6709\u4e24\u79cd\u521b\u5efa\u65b9\u5f0f\uff1a\n                        \u5185\u5b58\u4e2d-------&gt;key_buffer_size\n                        \u78c1\u76d8\u4e0a-------&gt;ibdata1(5.6)\n                                     ibtmp1 (5.7\uff09\n\n2.\u67e5\u770b\u65b9\u5f0f\nmysql&gt; show variables like &quot;%key_buffer_size%&quot;;\n#\u9ed8\u8ba4\u662f8M\n#\u67e5\u770b\u6709\u591a\u5c11\u5728\u8d70\u7d22\u5f15\uff0c\u4e0a\u9762\u7684\u603b\u6570\uff0c\u4e0b\u9762\u7684\u662f\u8d70\u78c1\u76d8\u7684\nmysql&gt; show status like &quot;key_read%&quot;;\n\n3.\u67e5\u770b\u4e34\u65f6\u8868\u521b\u5efa\nmysql&gt; show status like &quot;created_tmp%&quot;;\n+-------------------------+-------+\n| Variable_name           | Value |\n+-------------------------+-------+\n| Created_tmp_disk_tables | 10    |     #\u521b\u5efa\u5728\u78c1\u76d8\u7684\u4e34\u65f6\u8868\n| Created_tmp_files       | 6     |     #\u4e00\u5171\u4e34\u65f6\u6587\u4ef6\u7684\u6570\u91cf\n| Created_tmp_tables      | 70    |     #\u521b\u5efa\u5728\u5185\u5b58\u4e2d\u7684\u4e34\u65f6\u8868\n+-------------------------+-------+\n#\u901a\u5e38\u5730\uff0c\u6211\u4eec\u4e60\u60ef\u4ee5\u78c1\u76d8\u5efa\u8868\u767e\u5206\u6bd4\u6216\u8005\u5df2\u5404\u81ea\u7684\u4e00\u4e2a\u65f6\u6bb5\u5185\u7684\u5dee\u989d\u8ba1\u7b97\uff0c\u6765\u5224\u65ad\u57fa\u4e8e\u5185\u5b58\u7684\u4e34\u65f6\u8868\u5229\u7528\u7387\u3002\u6240\u4ee5\uff0c\u6211\u4eec\u4f1a\u6bd4\u8f83\u5173\u6ce8 Created_tmp_disk_tables \u662f\u5426\u8fc7\u591a\uff0c\u4ece\u800c\u8ba4\u5b9a\u5f53\u524d\u670d\u52a1\u5668\u8fd0\u884c\u72b6\u51b5\u7684\u4f18\u52a3\u3002\n#\u5ffd\u7565mysqldump\u5907\u4efd\u65f6\u5bfc\u81f4\u7684\u5927\u91cf\u4f7f\u7528\u78c1\u76d8\u8868\n\n4.\u914d\u7f6e\u65b9\u5f0f\nkey_buffer_size=64M<\/code><\/pre>\n<h3>5.query_cache_size<\/h3>\n<p><\/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=\"571\" type=\"hidden\"\/><input name=\"_init_callback\" value=\"InitLogin\" type=\"hidden\"\/><input name=\"post_id\" value=\"571\" type=\"hidden\"\/><input name=\"rt_ype\" value=\"1\" type=\"hidden\"\/><input name=\"nonce\" value=\"fba3684b54\" type=\"hidden\"\/><input name=\"_wpnonce\" value=\"2d1dcda414\" 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>\u6570\u636e\u5e93\u4f18\u5316 \u4e00\u3001\u6570\u636e\u5e93\u786c\u4ef6\u4f18\u5316\uff08\u9009\u578b\uff09 1.\u4e00\u822c\u6570\u636e\u5e93\u9009\u62e9 1.\u771f\u5b9e\u7684\u786c\u4ef6\uff0c\u7269\u7406\u673a 2.\u4e91\u4ea7\u54c1ECS\uff0c\u81ea\u5df1\u642d\u5efa [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[97],"tags":[21,19,99,22,100,20],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/571"}],"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=571"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/571\/revisions"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=571"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=571"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=571"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}