{"id":560,"date":"2021-07-28T21:06:12","date_gmt":"2021-07-28T13:06:12","guid":{"rendered":"https:\/\/egonlin.com\/?p=560"},"modified":"2021-07-30T10:37:41","modified_gmt":"2021-07-30T02:37:41","slug":"mha%e9%ab%98%e5%8f%af%e7%94%a8","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=560","title":{"rendered":"MHA\u9ad8\u53ef\u7528"},"content":{"rendered":"<h1>MHA\u9ad8\u53ef\u7528<\/h1>\n<h2>\u4e00 MHA\u80cc\u666f\u4ecb\u7ecd<\/h2>\n<p>MHA \u662fPerl\u8bed\u8a00\u5199\u7684\uff0c\u5f00\u6e90\u7684MYSQL\u6545\u969c\u5207\u6362\u65b9\u6848\uff1b\u5168\u79f0\uff1aMaster High Availability\uff0c\u6545\u969c\u5207\u6362\u65f6\u95f410-30s<\/p>\n<p>\u6709\u4eba\u8bf4\uff0c\u6211\u4e0d\u8981MHA\u884c\u4e0d\u884c\u554a\uff1b \u53ef\u4ee5\uff0c\u6ca1\u95ee\u9898\uff0c \u5982\u679c\u4e3b\u6570\u636e\u5e93\u6545\u969c\u4e86\uff1f<\/p>\n<p>\u9996\u5148\uff0c\u4f60\u9700\u8981\u624b\u52a8\u4e00\u4e2a\u4e00\u4e2a\u5730\u767b\u5f55\u4e0a\u6240\u6709\u7684SLAVE\u4ece\u5e93\uff0c\u7136\u540e\u4e00\u4e2a\u4e2a\u5bf9\u6bd4\uff0c\u770b\u8c01\u6267\u884c\u7684BINLOG\u6bd4\u8f83\u65b0\uff0c\u7136\u540e\u5c06\u5176\u4f5c\u4e3a\u4e3b\u5e93\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u4f60\u8fd8\u9700\u8981\u624b\u52a8\u628a\u6240\u6709\u7684\u4ece\u5e93CHANGE MASTER\u5230\u65b0\u9009\u51fa\u7684\u4e3b\u5e93\u3002<\/p>\n<p>\u4e00\u4e2a\u5b57\u201c\u8d39\u52b2\u201d\uff01<\/p>\n<p>\u8fd9\u8981\u662f\u522b\u7684\u4e8b\uff0c\u4e5f\u8fd8\u53ef\u4ee5\u5fcd\uff0c\u4f46\u4e3b\u5e93\u6302\u6389\uff0c\u4f1a\u5bfc\u81f4\u4e1a\u52a1\u65e0\u6cd5\u8bbf\u95ee\uff0c\u4e00\u5806\u4eba\u7ad9\u4f60\u65c1\u8fb9\u770b\u7740\u4f60\uff0c\u5230\u65f6\u5019\u4e00\u7d27\u5f20\u518d\u5fd8\u8bb0\u5f00\u5199\u4e86\u3001SLAVE\u6302\u4e0d\u4e0a\u53bb\uff0c\u8fd9\u4e2a\u5f71\u54cd\u65f6\u95f4\u5c31\u4e0d\u662f\u4e00\u661f\u534a\u70b9\u4e86\uff1b<\/p>\n<p>\u4e3a\u4e86\u89e3\u51b3\u4e0a\u8ff0\u95ee\u9898\uff0c\u5c31\u6709\u4eba\u5199\u4e86\u4e2a\u7a0b\u5e8f\uff0c\u6765\u6267\u884c\u81ea\u52a8\u7684\u4e3b\u4ece\u6545\u969c\u5207\u6362\uff0c\u8fd9\u5c31\u662fMHA\uff1b<\/p>\n<h2>\u4e8c MHA\u7b80\u4ecb<\/h2>\n<p>\u3000\u3000MHA\uff08Master High Availability\uff09\u662f\u7531\u65e5\u672c\u4eba yoshinorim\uff08\u539f\u5c31\u804c\u4e8eDeNA\u73b0\u5c31\u804c\u4e8eFaceBook\uff09\u5f00\u53d1\u7684\u4e00\u6b3e\u6210\u719f\u7684\u3001\u5f00\u6e90\u7684 MySQL \u7684\u9ad8\u53ef\u7528\u7a0b\u5e8f\u3002\u5b83\u4e3a MySQL \u4e3b\u4ece\u590d\u5236\u67b6\u6784\u63d0\u4f9b\u4e86\u81ea\u52a8\u6545\u969c\u5207\u6362\uff08 automating master failover\uff09 \u529f\u80fd\u3002        MHA \u5728\u76d1\u63a7\u5230 master \u8282\u70b9\u6545\u969c\u65f6\uff0c\u4f1a\u63d0\u5347\u5176\u4e2d\u62e5\u6709\u6700\u65b0\u6570\u636e\u7684 slave \u8282\u70b9\u6210\u4e3a\u65b0\u7684master \u8282\u70b9\uff0c\u5728\u6b64\u671f\u95f4\uff0cMHA \u4f1a\u901a\u8fc7\u4e8e\u5176\u5b83\u4ece\u8282\u70b9\u83b7\u53d6\u989d\u5916\u4fe1\u606f\u6765\u907f\u514d\u4e00\u81f4\u6027\u65b9\u9762\u7684\u95ee\u9898\uff0c\u4ece\u800c\u5728\u6700\u5927\u7a0b\u5ea6\u4e0a\u4fdd\u8bc1\u6570\u636e\u7684\u4e00\u81f4\u6027\uff0c\u4ee5\u8fbe\u5230\u771f\u6b63\u610f\u4e49\u4e0a\u7684\u9ad8\u53ef\u7528\uff0c\u800c\u4e14\u6574\u4e2a\u6545\u969c\u8f6c\u79fb\u8fc7\u7a0b\u5bf9\u5e94\u7528\u7a0b\u5e8f\u5b8c\u5168\u900f\u660e\u3002\u6700\u503c\u5f97\u79f0\u8d5e\u7684\u4e00\u70b9\u662f\uff1a<strong>\u8fd9\u4e00\u81ea\u52a8\u6545\u969c\u5207\u6362\u64cd\u4f5c\uff0cMHA\u80fd\u572810~30\u79d2\u4e4b\u5185\u5b8c\u6210<\/strong>\u3002<\/p>\n<p>\u200b   \u6b64\u5916\uff0cMHA \u8fd8\u63d0\u4f9b\u4e86 master \u8282\u70b9\u7684\u5728\u7ebf\u5207\u6362\u529f\u80fd\uff0c\u5373\u6309\u9700\u5207\u6362 master\/slave \u8282\u70b9\uff0c\u5927\u6982<strong>0.5-2\u79d2<\/strong>\u5185\u5373\u53ef\u5b8c\u6210\u3002<\/p>\n<p>\u200b   \u76ee\u524dMHA\u4e3b\u8981\u652f\u6301\u4e00\u4e3b\u591a\u4ece\u7684\u67b6\u6784\uff0c\u8981\u642d\u5efaMHA,\u8981\u6c42\u4e00\u4e2a\u590d\u5236\u96c6\u7fa4\u4e2d\u5fc5\u987b\u6700\u5c11\u6709\u4e09\u53f0\u6570\u636e\u5e93\u670d\u52a1\u5668\uff0c\u4f8b\u5982\u4e00\u4e3b\u4e8c\u4ece\u3002\u56e0\u4e3a\u81f3\u5c11\u9700\u8981\u4e09\u53f0\u670d\u52a1\u5668\uff0c\u51fa\u4e8e\u673a\u5668\u6210\u672c\u7684\u8003\u8651\uff0c\u6dd8\u5b9d\u4e5f\u5728\u8be5\u57fa\u7840\u4e0a\u8fdb\u884c\u4e86\u6539\u9020\uff0c\u76ee\u524d\u6dd8\u5b9d\u7684<strong>TMHA<\/strong>\u5df2\u7ecf\u652f\u6301\u4e00\u4e3b\u4e00\u4ece\u3002<\/p>\n<h2>\u4e09 MHA\u5de5\u4f5c\u539f\u7406<\/h2>\n<h3>3.1 MHA\u7684\u7ec4\u6210<\/h3>\n<p>MHA\u7531node\u548cmanager\u7ec4\u6210\uff1b<\/p>\n<ul>\n<li>MHA Node(\u6570\u636e\u8282\u70b9)\uff1a<\/li>\n<\/ul>\n<pre><code class=\"language-bash\">\u76f8\u5f53\u4e8e\u76d1\u63a7\u5ba2\u6237\u7aef,\u6240\u6709\u6570\u636e\u5e93\u673a\u5668\u90fd\u9700\u8981\u90e8\u7f72node<\/code><\/pre>\n<ul>\n<li>\n<p>MHA Manager(\u7ba1\u7406\u8282\u70b9)<\/p>\n<p>Manager\u76f8\u5f53\u4e8e\u670d\u52a1\u7aef\uff0cMHA Manager\u4f1a\u5b9a\u65f6\u63a2\u6d4b\u96c6\u7fa4\u4e2d\u7684master\u8282\u70b9\uff0c\u5f53master\u51fa\u73b0\u6545\u969c\u65f6\uff0c\u5b83\u53ef\u4ee5\u81ea\u52a8\u5c06\u6700\u65b0\u6570\u636e\u7684slave\u63d0\u5347\u4e3a\u65b0\u7684master\uff0c\u7136\u540e\u5c06\u6240\u6709\u5176\u4ed6\u7684slave\u91cd\u65b0\u6307\u5411\u65b0\u7684master\uff08\u5982\u679c\u539f\u4e3b\u5e93\u6062\u590d\uff0c\u53ea\u80fd\u5f53\u4ece\u5e93\uff09\u3002<\/p>\n<p>\u901a\u5e38\u5355\u72ec\u90e8\u7f72\u5728\u4e00\u53f0\u72ec\u7acb\u673a\u5668\u4e0a\u7ba1\u7406\u591a\u4e2a master\/slave \u96c6\u7fa4(\u7ec4)\uff0c\u6bcf\u4e2a master\/slave \u96c6\u7fa4\u79f0\u4f5c\u4e00\u4e2a application\uff0c\u7528\u6765\u7ba1\u7406\u7edf\u7b79\u6574\u4e2a\u96c6\u7fa4\u3002<\/p>\n<p>Manager\u5e94\u8be5\u5c3d\u91cf\u907f\u514d\u90e8\u7f72\u5728\u4e3b\u5e93\u4e0a\uff0c\u5426\u5219\u4e3b\u673a\u4e00\u6302\u5219\u5168\u6302\uff0c\u4e0d\u4ec5\u4e3b\u5e93\u5b8c\u86cb\u4e86\uff0c\u8d1f\u8d23\u81ea\u52a8\u8fc1\u79fb\u7684Manager\u4e5f\u5b8c\u86cb\u4e86\uff0c\u4e5f\u6ca1\u4eba\u8d1f\u8d23\u81ea\u52a8\u6545\u969c\u8fc1\u79fb\u4e86\uff0c\u5bfc\u81f4\u67b6\u6784\u4e0d\u53ef\u7528\u4e86\u3002<\/p>\n<p>\u53ef\u4ee5\u8003\u8651\u90e8\u7f72\u5728\u67d0\u4e00\u4e2aslave\u4e0a\uff0c\u6b64\u65f6\u8fd9\u53f0\u4e3b\u673a\u6302\u6389\u4e86\uff0c\u53ea\u662f\u6302\u4e86\u4e00\u4e2aslave\uff0c\u4ee5\u53caManager\uff0c\u5982\u679c\u6b64\u65f6\u4f60\u4e0d\u662f\u5012\u4e86\u9709\uff0c\uff08\u4e3b\u5e93\u4e5f\u6302\u4e86\uff09\uff0c\u90a3\u8fd8\u4e0d\u81f3\u4e8e\u67b6\u6784\u4e0d\u53ef\u7528\u3002\u4f46\u6709\u4e00\u70b9\u9700\u8981\u6ce8\u610f\u7684\u662f\uff1a\u5982\u679cManager\u90e8\u7f72\u5728slave\u4e0a\uff0c\u90a3\u4e48\u8be5slave\u5c31\u65e0\u6cd5\u88ab\u5347\u7ea7\u4e3a\u4e3b\u5e93\uff1b<br \/>\n<div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2021\/07\/55.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2021\/07\/55.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n<\/li>\n<\/ul>\n<p>\u3000\u7531\u4e0a\u56fe\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\uff0c\u6bcf\u4e2a\u590d\u5236\u7ec4\u5185\u90e8\u548c Manager \u4e4b\u95f4\u90fd\u9700\u8981ssh\u5b9e\u73b0\u65e0\u5bc6\u7801\u4e92\u8fde\uff0c\u53ea\u6709\u8fd9\u6837\uff0c\u5728 Master \u51fa\u6545\u969c\u65f6\uff0c Manager \u624d\u80fd\u987a\u5229\u7684\u8fde\u63a5\u8fdb\u53bb\uff0c\u5b9e\u73b0\u4e3b\u4ece\u5207\u6362\u529f\u80fd\u3002<\/p>\n<h3>3.2 MHA\u81ea\u52a8\u6545\u969c\u5207\u6362\u7684\u6b65\u9aa4<\/h3>\n<p>\uff081\uff09\uff0c Manager\u4f1a\u6bcf\u96943\u79d2\u949f\u63a2\u6d4b\u4e00\u6b21MASTER\u4e3b\u5e93\uff1b \uff08Hi, \u4e3b\u5e93\u4f60\u8fd8\u6d3b\u7740\u5417\uff1f\uff09<\/p>\n<pre><code>ping_interval \u63a7\u5236\u95f4\u9694\u65f6\u95f4\uff1b\n\nping_type \u63a7\u5236\u63a2\u6d4b\u65b9\u5f0f\uff0cSELECT\uff08\u6267\u884cSELECT 1\uff09\u548cCONNECT\uff08\u521b\u5efa\u8fde\u63a5\/\u65ad\u5f00\u8fde\u63a5\uff09<\/code><\/pre>\n<p>\uff082\uff09\uff0c \u5982\u679cManager\u63a2\u6d4b\u5230MASTER\u4e3b\u5e93\u6545\u969c\u3001\u65e0\u6cd5\u8bbf\u95ee\uff0cManager\u4f1a\u6267\u884c\u4e0b\u9762\u64cd\u4f5c\uff1a<\/p>\n<pre><code>1\u3001\u4ece\u5176\u4ed6node\u53d1\u8d77ssh\u8fde\u63a5\uff0c\u68c0\u67e5\u4e3b\u5e93\u662f\u5426\u80fd\u591fSSH\u4e0a\u53bb\uff1b\n\n2\u3001\u4ece\u5176\u4ed6node\u53d1\u8d77mysql\u8fde\u63a5\uff0c\u68c0\u67e5MASTER\u5e93\u662f\u5426\u80fd\u591f\u767b\u9646\uff1b<\/code><\/pre>\n<p>\uff083\uff09\uff0c \u5982\u679c\u6240\u6709Node\u8282\u70b9ssh\u8fde\u63a5\u3001msyql\u4e3b\u5e93\u8fde\u63a5\u5747\u8fde\u63a5\u5931\u8d25\uff0c\u5219\u5f00\u59cb\u6545\u969c\u8f6c\u79fb\uff0c<\/p>\n<p>\u7b80\u5355\u5730\u8bf4<\/p>\n<pre><code class=\"language-bash\">1.\u627e\u5230\u6570\u636e\u6700\u65b0\u7684\u4ece\u5e93\uff08\u901a\u8fc7\u5bf9\u6bd4relay-log\uff0c\u67e5\u770bshow slave status\u5373\u53ef\uff09\n2.\u5c06\u6700\u65b0\u7684\u4ece\u5e93\u4e0a\u7684\u65b0\u6570\u636e\u540c\u6b65\u5230\u5176\u4ed6\u4ece\u5e93\n3.\u63d0\u5347\u4e00\u4e2a\u4ece\u5e93\u4e3a\u4e3b\u5e93\uff08\u4e00\u822c\u60c5\u51b5\u63d0\u5347\u6570\u636e\u6700\u65b0\u7684\uff0c\u4e8c\u822c\u60c5\u51b5\u63d0\u5347\u6211\u4eec\u6307\u5b9a\u7684\u4ece\u5e93\u4e3a\u4e3b\u5e93\uff09\n4.\u901a\u8fc7\u539f\u6765\u4e3b\u5e93\u7684binlog\u8865\u5168\u65b0\u7684\u4e3b\u5e93\u6570\u636e\n5.\u5176\u4ed6\u4ece\u5e93\u4ee5\u65b0\u7684\u4e3b\u5e93\u4e3a\u4e3b\u505a\u4e3b\u4ece\u590d\u5236<\/code><\/pre>\n<p>\u8be6\u7ec6\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n<table cellspacing=\"0\">\n<tbody>\n<tr>\n<td style=\"vertical-align:bottom;width:88pt;\"><span style=\"color:#000000;\">Phase 1<\/span><\/td>\n<td style=\"vertical-align:bottom;width:300pt;\"><span style=\"color:#000000;\">Configuration Check Phase..<\/span><\/td>\n<td style=\"vertical-align:bottom;width:460pt;\"><span style=\"color:#000000;\"><span style=\"color:#000000;\">\u68c0\u67e5\u6570\u636e\u5e93\u7248\u672c<br \/> \u68c0\u67e5\u662f\u5426\u542f\u7528<\/span><span style=\"color:#000000;\">GTID<\/span><br \/><span style=\"color:#000000;\">\u68c0\u67e5\u4ece\u5e93\u662f\u5426\u5b58\u6d3b<br \/> \u68c0\u67e5\u914d\u7f6e\u6587\u4ef6\u7684<\/span><span style=\"color:#000000;\">candidate<\/span><\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"vertical-align:bottom;\"><span style=\"color:#000000;\">Phase 2<\/span><\/td>\n<td style=\"vertical-align:bottom;\"><span style=\"color:#000000;\">Dead Master Shutdown Phase.<\/span><\/td>\n<td style=\"vertical-align:bottom;width:460pt;\"><span style=\"color:#000000;\"><span style=\"color:#000000;\">\u8be5\u9636\u6bb5\u4f1a\u8c03\u7528<\/span><span style=\"color:#000000;\">master_ip_failover<\/span><span style=\"color:#000000;\">\u811a\u672c\uff1b\u53bb\u5173\u95ed\u6240\u6709<\/span><span style=\"color:#000000;\">Node<\/span><span style=\"color:#000000;\">\u7684<\/span><span style=\"color:#000000;\">IO Thread<\/span><br \/><span style=\"color:#000000;\">\u8c03\u7528<\/span><span style=\"color:#000000;\">shutdown_script <\/span><span style=\"color:#000000;\">\u5f3a\u5236\u5173\u95ed<\/span><span style=\"color:#000000;\">MASTER<\/span><span style=\"color:#000000;\">\u5b9e\u4f8b\uff0c\u9632\u6b62\u5e94\u7528\u7a0b\u5e8f\u6765\u8fde\u63a5\uff1b<\/span><\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"vertical-align:bottom;\"><span style=\"color:#000000;\">Phase 3<\/span><\/td>\n<td style=\"vertical-align:bottom;\"><span style=\"color:#000000;\">Master Recovery Phase..<\/span><\/td>\n<td style=\"vertical-align:bottom;\"><span style=\"color:#000000;\">\u3000<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align:right;vertical-align:bottom;\"><span style=\"color:#000000;\">Phase 3.1<\/span><\/td>\n<td style=\"vertical-align:bottom;\"><span style=\"color:#000000;\">Getting Latest Slaves Phase.<\/span><\/td>\n<td style=\"vertical-align:bottom;\"><span style=\"color:#000000;\"><span style=\"color:#000000;\">\u68c0\u67e5\u6240\u6709\u8282\u70b9\uff0c\u4ece<\/span><span style=\"color:#000000;\">show slave status<\/span><span style=\"color:#000000;\">\u4e2d\u5bf9\u6bd4\u83b7\u53d6\u6700\u65b0\u7684<\/span><span style=\"color:#000000;\">binlog\/position<\/span><\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align:right;vertical-align:bottom;\"><span style=\"color:#000000;\">Phase 3.2<\/span><\/td>\n<td style=\"vertical-align:bottom;\"><span style=\"color:#000000;\">Saving Dead Master&#8217;s Binlog Phase..<\/span><\/td>\n<td style=\"vertical-align:bottom;width:460pt;\"><span style=\"color:#000000;\"><span style=\"color:#000000;\">\u5982\u679c\u8001\u7684<\/span><span style=\"color:#000000;\">Master<\/span><span style=\"color:#000000;\">\u53ef\u4ee5<\/span><span style=\"color:#000000;\">SSH<\/span><span style=\"color:#000000;\">\uff0c\u4e0a\u53bb\u83b7\u53d6<\/span><span style=\"color:#000000;\">BINLOG<\/span><span style=\"color:#000000;\">\uff0c\u4ece<\/span><span style=\"color:#000000;\">position<\/span><span style=\"color:#000000;\">\u5230<\/span><span style=\"color:#000000;\">END<\/span><span style=\"color:#000000;\">\u4f4d\u7f6e\uff0c\u83b7\u53d6\u8fd9\u6bb5<\/span><span style=\"color:#000000;\">BINLOG<\/span><span style=\"color:#000000;\">\uff08<\/span><span style=\"color:#000000;\">MASETER<\/span><span style=\"color:#000000;\">\u4ea7\u751f\u8fd9\u6bb5<\/span><span style=\"color:#000000;\">BINLOG<\/span><span style=\"color:#000000;\">\uff0c\u8fd8\u672a\u6765\u5f97\u53ca\u53d1\u9001\u7ed9<\/span><span style=\"color:#000000;\">SLAVE<\/span><span style=\"color:#000000;\">\uff09\u5c06\u8fd9\u90e8\u5206\u65e5\u5fd7\u53d1\u9001\u7ed9<\/span><span style=\"color:#000000;\">Manager<\/span><span style=\"color:#000000;\">\u8282\u70b9<\/span><span style=\"color:#000000;\">(manager_workdir<\/span><span style=\"color:#000000;\">\u4f4d\u7f6e<\/span><span style=\"color:#000000;\">)<\/span><span style=\"color:#000000;\">\uff1b<br \/> \u5982\u679c\u6545\u969c<\/span><span style=\"color:#000000;\">Master<\/span><span style=\"color:#000000;\">\u65e0\u6cd5<\/span><span style=\"color:#000000;\">SSH<\/span><span style=\"color:#000000;\">\uff0c\u5219\u65e0\u6cd5\u83b7\u53d6\u8fd9\u6bb5\u65e5\u5fd7<\/span><\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align:right;vertical-align:bottom;\"><span style=\"color:#000000;\">Phase 3.3<\/span><\/td>\n<td style=\"vertical-align:bottom;\"><span style=\"color:#000000;\">Determining New Master Phase..<\/span><\/td>\n<td style=\"vertical-align:bottom;width:460pt;\"><span style=\"color:#000000;\"><span style=\"color:#000000;\">\u5bf9\u6bd4\u6240\u6709<\/span><span style=\"color:#000000;\">SLAVE<\/span><span style=\"color:#000000;\">\uff0c\u4ece\u6700\u65b0<\/span><span style=\"color:#000000;\">SALVE<\/span><span style=\"color:#000000;\">\u4e2d\u540c\u6b65\u5dee\u5f02<\/span><span style=\"color:#000000;\">realy log<\/span><span style=\"color:#000000;\">\u7ed9\u5176\u4ed6<\/span><span style=\"color:#000000;\">slave;<\/span><span style=\"color:#000000;\">\u6700\u7ec8\u786e\u4fdd\u6240\u6709<\/span><span style=\"color:#000000;\">SLAVE<\/span><span style=\"color:#000000;\">\u6570\u636e\u4e00\u81f4<\/span><\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align:right;vertical-align:bottom;\"><span style=\"color:#000000;\">Phase 3.3<\/span><\/td>\n<td style=\"vertical-align:bottom;\"><span style=\"color:#000000;\">New Master Diff Log Generation Phase..<\/span><\/td>\n<td style=\"vertical-align:bottom;width:460pt;\"><span style=\"color:#000000;\"><span style=\"color:#000000;\">\u786e\u8ba4\u65b0<\/span><span style=\"color:#000000;\">master <\/span><span style=\"color:#000000;\">\u662f\u5426\u4e3a\u6700\u65b0<\/span><span style=\"color:#000000;\">slave<\/span><span style=\"color:#000000;\">\uff0c\u5982\u679c\u4e0d\u662f\uff0c\u5219\u4ece\u6700\u65b0<\/span><span style=\"color:#000000;\">slave<\/span><span style=\"color:#000000;\">\u83b7\u53d6\u5dee\u5f02\u65e5\u5fd7\uff1b<br \/> \u5c06<\/span><span style=\"color:#000000;\">manager<\/span><span style=\"color:#000000;\">\u4e0a\u83b7\u53d6\u7684<\/span><span style=\"color:#000000;\">BINLOG<\/span><span style=\"color:#000000;\">\u65e5\u5fd7\u53d1\u9001\u7ed9<\/span><span style=\"color:#000000;\">new master<\/span><span style=\"color:#000000;\">\uff1b<\/span><\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align:right;vertical-align:bottom;\"><span style=\"color:#000000;\">Phase 3.4<\/span><\/td>\n<td style=\"vertical-align:bottom;\"><span style=\"color:#000000;\">Master Log Apply Phase..<\/span><\/td>\n<td style=\"vertical-align:bottom;width:460pt;\"><span style=\"color:#000000;\"><span style=\"color:#000000;\">\u5bf9\u6bd4\u65b0<\/span><span style=\"color:#000000;\">master<\/span><span style=\"color:#000000;\">\u7684<\/span><span style=\"color:#000000;\">Exec_Master_Log_Pos<\/span><span style=\"color:#000000;\">\u548c<\/span><span style=\"color:#000000;\">Read_Master_Log_Pos<\/span><span style=\"color:#000000;\">\uff0c\u5224\u65ad\u6062\u590d\u7684\u4f4d\u7f6e\uff1b<br \/> \u5728\u672c\u5730\u56de\u653e<\/span><span style=\"color:#000000;\"> 3.3 Phase<\/span><span style=\"color:#000000;\">\u7684\u5dee\u5f02\u65e5\u5fd7\uff1b<br \/> \u83b7\u53d6\u65b0<\/span><span style=\"color:#000000;\">master<\/span><span style=\"color:#000000;\">\u7684<\/span><span style=\"color:#000000;\">binlog<\/span><span style=\"color:#000000;\">\u548c<\/span><span style=\"color:#000000;\">position<\/span><span style=\"color:#000000;\">\uff1b<\/span><\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"vertical-align:bottom;\"><span style=\"color:#000000;\">Phase 4<\/span><\/td>\n<td style=\"vertical-align:bottom;\"><span style=\"color:#000000;\">Slaves Recovery Phase..<\/span><\/td>\n<td style=\"vertical-align:bottom;\"><span style=\"color:#000000;\">\u3000<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align:right;vertical-align:bottom;\"><span style=\"color:#000000;\">Phase 4.1<\/span><\/td>\n<td style=\"vertical-align:bottom;\"><span style=\"color:#000000;\">Starting Parallel Slave Diff Log Generation Phase.<\/span><\/td>\n<td style=\"vertical-align:bottom;width:460pt;\"><span style=\"color:#000000;\"><span style=\"color:#000000;\">\u5bf9\u6bcf\u4e2a<\/span><span style=\"color:#000000;\">SLAVE<\/span><span style=\"color:#000000;\">\u6062\u590d\uff1a\u6240\u6709<\/span><span style=\"color:#000000;\">SLAVE<\/span><span style=\"color:#000000;\">\u548c\u6700\u65b0<\/span><span style=\"color:#000000;\">Slave<\/span><span style=\"color:#000000;\">\u505a\u5bf9\u6bd4\uff0c\u5982\u679c<\/span><span style=\"color:#000000;\">position<\/span><span style=\"color:#000000;\">\u4e0d\u4e00\u81f4\uff0c\u5219\u751f\u4ea7\u5dee\u5f02\u65e5\u5fd7<\/span><\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align:right;vertical-align:bottom;\"><span style=\"color:#000000;\">Phase 4.2<\/span><\/td>\n<td style=\"vertical-align:bottom;\"><span style=\"color:#000000;\">Starting Parallel Slave Log Apply Phase.<\/span><\/td>\n<td style=\"vertical-align:bottom;width:460pt;\"><span style=\"color:#000000;\"><span style=\"color:#000000;\">\u6bcf\u4e2a<\/span><span style=\"color:#000000;\">SLAVE <\/span><span style=\"color:#000000;\">\u5e94\u7528\u5dee\u5f02\u65e5\u5fd7\uff1b<br \/> \u6267\u884c<\/span><span style=\"color:#000000;\">CHANGE MASTER <\/span><span style=\"color:#000000;\">\u6302\u5728\u5230\u65b0<\/span><span style=\"color:#000000;\">Master<\/span><\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"vertical-align:bottom;\"><span style=\"color:#000000;\">Phase 5<\/span><\/td>\n<td style=\"vertical-align:bottom;\"><span style=\"color:#000000;\">New master cleanup phase..<\/span><\/td>\n<td style=\"vertical-align:bottom;width:460pt;\"><span style=\"color:#000000;\">reset slave all;<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u56db MHA\u7684\u4f18\u70b9\u603b\u7ed3<\/h2>\n<blockquote>\n<p>1\u3001\u81ea\u52a8\u7684\u6545\u969c\u68c0\u6d4b\u4e0e\u8f6c\u79fb\uff0c\u901a\u5e38\u572810-30\u79d2\u4ee5\u5185;<\/p>\n<p>2\u3001MHA\u8fd8\u63d0\u4f9b\u5728\u7ebf\u4e3b\u5e93\u5207\u6362\u7684\u529f\u80fd\uff0c\u80fd\u591f\u5b89\u5168\u5730\u5207\u6362\u5f53\u524d\u8fd0\u884c\u7684\u4e3b\u5e93\u5230\u4e00\u4e2a\u65b0\u7684\u4e3b\u5e93\u4e2d(\u901a\u8fc7\u5c06\u4ece\u5e93\u63d0\u5347\u4e3a\u4e3b\u5e93),\u5927\u69820.5-2\u79d2\u5185\u5373\u53ef\u5b8c\u6210\u3002<\/p>\n<p>3\u3001\u5f88\u597d\u5730\u89e3\u51b3\u4e86\u4e3b\u5e93\u5d29\u6e83\u6570\u636e\u7684\u4e00\u81f4\u6027\u95ee\u9898<\/p>\n<p>4\u3001\u4e0d\u9700\u8981\u5bf9\u5f53\u524d\u7684mysql\u73af\u5883\u505a\u91cd\u5927\u4fee\u6539<\/p>\n<p>5\u3001\u4e0d\u9700\u8981\u5728\u73b0\u6709\u7684\u590d\u5236\u6846\u67b6\u4e2d\u6dfb\u52a0\u989d\u5916\u7684\u670d\u52a1\u5668\uff0c\u4ec5\u9700\u8981\u4e00\u4e2amanager\u8282\u70b9\uff0c\u800c\u4e00\u4e2aManager\u80fd\u7ba1\u7406\u591a\u5957\u590d\u5236\uff0c\u6240\u4ee5\u80fd\u5927\u5927\u5730\u8282\u7ea6\u670d\u52a1\u5668\u7684\u6570\u91cf;<\/p>\n<p>6\u3001\u6027\u80fd\u4f18\u79c0\uff0c\u53ef\u4ee5\u5de5\u4f5c\u5728\u534a\u540c\u6b65\u548c\u5f02\u6b65\u590d\u5236\u6846\u67b6\uff0c\u652f\u6301gtid\uff0c\u5f53\u76d1\u63a7mysql\u72b6\u6001\u65f6\uff0c\u4ec5\u9700\u8981\u6bcf\u9694N\u79d2\u5411master\u53d1\u9001ping\u5305(\u9ed8\u8ba43\u79d2)\uff0c\u6240\u4ee5\u5bf9\u6027\u80fd\u65e0\u5f71\u54cd\u3002\u4f60\u53ef\u4ee5\u7406\u89e3\u4e3aMHA\u7684\u6027\u80fd\u548c\u7b80\u5355\u7684\u4e3b\u4ece\u590d\u5236\u6846\u67b6\u6027\u80fd\u4e00\u6837\u3002<\/p>\n<p>7\u3001\u53ea\u8981replication\u652f\u6301\u7684\u5b58\u50a8\u5f15\u64ce\u90fd\u652f\u6301MHA\uff0c\u4e0d\u4f1a\u5c40\u9650\u4e8einnodb<\/p>\n<p>8\u3001\u5bf9\u4e8e\u4e00\u822c\u7684keepalived\u9ad8\u53ef\u7528\uff0c\u5f53vip\u5728\u4e00\u53f0\u673a\u5668\u4e0a\u7684\u65f6\u5019\uff0c\u53e6\u4e00\u53f0\u673a\u5668\u662f\u95f2\u7f6e\u7684\uff0c\u800cMHA\u4e2d\u5e76\u65e0\u95f2\u7f6e\u4e3b\u673a\u3002<\/p>\n<\/blockquote>\n<h2>\u4e94 GTID\u4e3b\u4ece\u590d\u5236<\/h2>\n<h3>5.1 \u4ec0\u4e48\u662fGTID<\/h3>\n<p>\u200b   \u5728MHA\u81ea\u52a8\u6545\u969c\u5207\u6362\u8fc7\u7a0b\u4e2d\uff0cMHA\u8bd5\u56fe\u4ece\u5b95\u673a\u7684\u4e3b\u670d\u52a1\u5668\u4e0a\u4fdd\u5b58\u4e8c\u8fdb\u5236\u65e5\u5fd7\uff0c\u6700\u5927\u7a0b\u5ea6\u7684\u4fdd\u8bc1\u6570\u636e\u7684\u4e0d\u4e22\u5931\uff0c\u4f46\u8fd9\u5e76\u4e0d\u603b\u662f\u53ef\u884c\u7684\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4e3b\u670d\u52a1\u5668\u786c\u4ef6\u6545\u969c\u6216\u65e0\u6cd5\u901a\u8fc7ssh\u8bbf\u95ee\uff0cMHA\u6ca1\u6cd5\u4fdd\u5b58\u4e8c\u8fdb\u5236\u65e5\u5fd7\uff0c\u53ea\u8fdb\u884c\u6545\u969c\u8f6c\u79fb\u800c\u4e22\u5931\u4e86\u6700\u65b0\u7684\u6570\u636e\u3002\u4f7f\u7528\u81eaMySQL 5.5\u5f00\u59cb\u5f15\u5165\u7684\u534a\u540c\u6b65\u590d\u5236\uff0c\u53ef\u4ee5\u5927\u5927\u964d\u4f4e\u6570\u636e\u4e22\u5931\u7684\u98ce\u9669\u3002<\/p>\n<p>\u3000\u3000MHA\u53ef\u4ee5\u4e0e\u534a\u540c\u6b65\u590d\u5236\u7ed3\u5408\u8d77\u6765\u3002\u5982\u679c\u53ea\u6709\u4e00\u4e2aslave\u5df2\u7ecf\u6536\u5230\u4e86\u6700\u65b0\u7684\u4e8c\u8fdb\u5236\u65e5\u5fd7\uff0cMHA\u53ef\u4ee5\u5c06\u6700\u65b0\u7684\u4e8c\u8fdb\u5236\u65e5\u5fd7\u5e94\u7528\u4e8e\u5176\u4ed6\u6240\u6709\u7684slave\u670d\u52a1\u5668\u4e0a\uff0c\u56e0\u6b64\u53ef\u4ee5\u4fdd\u8bc1\u6240\u6709\u8282\u70b9\u7684\u6570\u636e\u4e00\u81f4\u6027\uff0c\u6216\u8005\u91c7\u7528GTID\u3002<\/p>\n<p>\u200b   \u90a3\u4ec0\u4e48\u662fGTID\u5462???<\/p>\n<pre><code class=\"language-bash\">\u4eceMySQL 5.6.2 \u5f00\u59cb\u65b0\u589e\u4e86\u4e00\u79cd\u57fa\u4e8e GTID \u7684\u590d\u5236\u65b9\u5f0f\uff0c\u7528\u4ee5\u66ff\u4ee3\u4ee5\u524d\u4f20\u7edf\u7684\u590d\u5236\u65b9\u5f0f\uff0c\u5230MySQL5.6.10\u540e\u9010\u6e10\u5b8c\u5584\u3002\u901a\u8fc7 GTID \u4fdd\u8bc1\u4e86\u6bcf\u4e2a\u5728\u4e3b\u5e93\u4e0a\u63d0\u4ea4\u7684\u4e8b\u52a1\u5728\u96c6\u7fa4\u4e2d\u6709\u4e00\u4e2a\u552f\u4e00\u7684ID\u3002\u8fd9\u79cd\u65b9\u5f0f\u5f3a\u5316\u4e86\u6570\u636e\u5e93\u7684\u4e3b\u5907\u4e00\u81f4\u6027\uff0c\u6545\u969c\u6062\u590d\u4ee5\u53ca\u5bb9\u9519\u80fd\u529b\uff0c\u90a3\u4e48\u5b83\u5982\u4f55\u505a\u5230\u7684\u5462\uff1f\n\n\u8981\u60f3\u5728\u5206\u5e03\u5f0f\u96c6\u7fa4\u73af\u5883\u4e2d\u4e0d\u4e22\u5931\u4e8b\u52a1\uff0c\u5c31\u5fc5\u987b\u4e3a\u6bcf\u4e2a\u4e8b\u52a1\u5b9a\u5236\u4e00\u4e2a\u5168\u5c40\u552f\u4e00\u7684ID\u53f7\uff0c\u5e76\u4e14\u8be5ID\u662f\u8d8b\u52bf\u9012\u589e\u7684\uff0c\u4ee5\u6b64\u6211\u4eec\u4fbf\u53ef\u4ee5\u65b9\u4fbf\u5730\u987a\u5e8f\u8bfb\u53d6\u3001\u4e0d\u4e22\u4e8b\u52a1\uff0c\u5176\u5b9eGTID\u5c31\u662f\u4e00\u79cd\u5f88\u597d\u7684\u5206\u5e03\u5f0fID\u5b9e\u8df5\u65b9\u6848\uff0c\u5b83\u6ee1\u8db3\u5206\u5e03ID\u7684\u4e24\u4e2a\u57fa\u672c\u8981\u6c42\n1\uff09\u5168\u5c40\u552f\u4e00\u6027\n2\uff09\u8d8b\u52bf\u9012\u589e\n\nGTID (Global Transaction ID\u5168\u5c40\u4e8b\u52a1ID)\u662f\u5982\u4f55\u505a\u5230\u5168\u5c40\u552f\u4e00\u4e14\u8d8b\u52bf\u9012\u589e\u7684\u5462\uff0c\u5b83\u662f\u7531UUID+TID\u4e24\u90e8\u5206\u7ec4\u6210\n    UUID\u662f\u6570\u636e\u5e93\u5b9e\u4f8b\u7684\u6807\u8bc6\u7b26\n    TID\u8868\u793a\u4e8b\u52a1\u63d0\u4ea4\u7684\u6570\u91cf\uff0c\u4f1a\u968f\u7740\u4e8b\u52a1\u7684\u63d0\u4ea4\u9012\u589e\n    #\u5177\u4f53\u5f62\u5f0f\uff1a5426a3c1-ade1-11e9-90b3-000c29bb4490:23\n\u56e0\u6b64\u4ed6\u4e0e\u4e3b\u5e93\u4e0a\u63d0\u4ea4\u7684\u6bcf\u4e2a\u4e8b\u52a1\u76f8\u5173\u8054,GTID\u4e0d\u4ec5\u5bf9\u5176\u53d1\u8d77\u7684\u670d\u52a1\u5668\u662f\u552f\u4e00\u7684\uff0c\u800c\u4e14\u5728\u7ed9\u5b9a\u590d\u5236\u8bbe\u7f6e\u4e2d\u7684\u6240\u6709\u670d\u52a1\u5668\u90fd\u662f\u552f\u4e00\u7684\uff0c\u5373\u6240\u6709\u7684\u4e8b\u52a1\u548c\u6240\u6709\u7684GTID\u90fd\u662f1\u5bf91\u7684\u6620\u5c04\u3002\n\n\u5f53\u5728\u4e3b\u5e93\u4e0a\u63d0\u4ea4\u4e8b\u52a1\u6216\u8005\u88ab\u4ece\u5e93\u5e94\u7528\u65f6\uff0c\u53ef\u4ee5\u5b9a\u4f4d\u548c\u8ffd\u8e2a\u6bcf\u4e00\u4e2a\u4e8b\u52a1\uff0c\u5bf9DBA\u6765\u8bf4\u610f\u4e49\u5c31\u5f88\u5927\u4e86\uff0c\u6211\u4eec\u53ef\u4ee5\u9002\u5f53\u7684\u89e3\u653e\u51fa\u6765\uff0c\u4e0d\u7528\u624b\u5de5\u53bb\u53ef\u4ee5\u627e\u504f\u79fb\u91cf\u7684\u503c\u4e86\uff0c\u800c\u662f\u901a\u8fc7CHANGE MASTER TO MASTER_HOST=&#039;xxx&#039;, MASTER_AUTO_POSITION=1\u7684\u5373\u53ef\u65b9\u4fbf\u7684\u642d\u5efa\u4ece\u5e93\uff0c\u5728\u6545\u969c\u4fee\u590d\u4e2d\u4e5f\u53ef\u4ee5\u91c7\u7528MASTER_AUTO_POSITION=\u2018X\u2019\u7684\u65b9\u5f0f\u3002\n\n5.7\u7248\u672cGTID\u505a\u4e86\u589e\u5f3a\uff0c\u4e0d\u624b\u5de5\u5f00\u542f\u4e5f\u81ea\u52a8\u7ef4\u62a4\u533f\u540d\u7684GTID\u4fe1\u606f<\/code><\/pre>\n<h3>5.2 GTID\u4e3b\u4ece\u7684\u539f\u7406<\/h3>\n<h4>\uff081\uff09\u4e00\u4e2aGTID\u7684\u751f\u547d\u5468\u671f<\/h4>\n<pre><code class=\"language-bash\">1.\u4e8b\u52a1\u5728\u4e3b\u5e93\u4e0a\u6267\u884c\u5e76\u63d0\u4ea4\u7ed9\u4e8b\u52a1\u5206\u914d\u4e00\u4e2agtid\uff08\u7531\u4e3b\u5e93\u7684uuid\u548c\u8be5\u670d\u52a1\u5668\u4e0a\u672a\u4f7f\u7528\u7684\u6700\u5c0f\u4e8b\u52a1\u5e8f\u5217\u53f7\uff09\uff0c\u8be5GTID\u88ab\u5199\u5165\u5230binlog\u4e2d\u3002\n\n2.\u5907\u5e93\u8bfb\u53d6relaylog\u4e2d\u7684gtid\uff0c\u5e76\u8bbe\u7f6esession\u7ea7\u522b\u7684gtid_next\u7684\u503c\uff0c\u4ee5\u544a\u8bc9\u5907\u5e93\u4e0b\u4e00\u4e2a\u4e8b\u52a1\u5fc5\u987b\u4f7f\u7528\u8fd9\u4e2a\u503c\n\n3.\u5907\u5e93\u68c0\u67e5\u8be5gtid\u662f\u5426\u5df2\u7ecf\u88ab\u5176\u4f7f\u7528\u5e76\u8bb0\u5f55\u5230\u4ed6\u81ea\u5df1\u7684binlog\u4e2d\u3002slave\u9700\u8981\u62c5\u4fdd\u4e4b\u524d\u7684\u4e8b\u52a1\u6ca1\u6709\u4f7f\u7528\u8fd9\u4e2agtid\uff0c\u4e5f\u8981\u62c5\u4fdd\u6b64\u65f6\u5df2\u5206\u8bfb\u53d6gtid\uff0c\u4f46\u672a\u63d0\u4ea4\u7684\u4e8b\u52a1\u4e5f\u4e0d\u6069\u5462\u8fc7\u4f7f\u7528\u8fd9\u4e2agtid.\n\n4.\u7531\u4e8egtid_next\u975e\u7a7a\uff0cslave\u4e0d\u4f1a\u53bb\u751f\u6210\u4e00\u4e2a\u65b0\u7684gtid\uff0c\u800c\u662f\u4f7f\u7528\u4ece\u4e3b\u5e93\u83b7\u5f97\u7684gtid\u3002\u8fd9\u53ef\u4ee5\u4fdd\u8bc1\u5728\u4e00\u4e2a\u590d\u5236\u62d3\u6251\u4e2d\u7684\u540c\u4e00\u4e2a\u4e8b\u52a1gtid\u4e0d\u53d8\u3002\u7531\u4e8eGTID\u5728\u5168\u5c40\u7684\u552f\u4e00\u6027\uff0c\u901a\u8fc7GTID\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u81ea\u52a8\u5207\u6362\u65f6\u5bf9\u4e00\u4e9b\u590d\u6742\u7684\u590d\u5236\u62d3\u6251\u5f88\u65b9\u4fbf\u7684\u63d0\u5347\u65b0\u4e3b\u5e93\u53ca\u65b0\u5907\u5e93\uff0c\u4f8b\u5982\u901a\u8fc7\u6307\u5411\u7279\u5b9a\u7684GTID\u6765\u786e\u5b9a\u65b0\u5907\u5e93\u590d\u5236\u5750\u6807\u3002<\/code><\/pre>\n<h4>\uff082\uff09\u67b6\u6784\u56fe<\/h4>\n<p>\u540c\u6837\u7684GTID\u4e0d\u80fd\u88ab\u6267\u884c\u4e24\u6b21\uff0c\u5982\u679c\u6709\u540c\u6837\u7684GTID\uff0c\u4f1a\u81ea\u52a8\u88abskip\u6389\u3002<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2021\/07\/56.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2021\/07\/56.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n<p>slave1\uff1a\u5c06\u81ea\u5df1\u7684UUID1\uff1a1\u53d1\u9001\u7ed9master\uff0c\u7136\u540e\u63a5\u6536\u5230\u4e86UUID1\uff1a2\uff0cUUID1\uff1a3 event<\/p>\n<p>slave2\uff1a\u5c06\u81ea\u5df1\u7684UUID1\uff1a1\uff0cUUID1\uff1a2\u53d1\u9001\u7ed9master\uff0c\u7136\u540e\u63a5\u6536\u5230\u4e86UUID1\uff1a3\u4e8b\u4ef6<\/p>\n<h3>5.3 \u90e8\u7f72\u57fa\u4e8eGTID\u7684\u4e3b\u4ece\u590d\u5236<\/h3>\n<p>\u6ce8\u610f\uff1a<\/p>\n<p>\u200b       ? \u4e3b\u5e93\u548c\u4ece\u5e93\u90fd\u8981\u5f00\u542fbinlog<\/p>\n<p>\u3000\u3000? \u4e3b\u5e93\u548c\u4ece\u5e93server-id\u5fc5\u987b\u4e0d\u540c<\/p>\n<p>\u3000\u3000? \u8981\u6709\u4e3b\u4ece\u590d\u5236\u7528\u6237<\/p>\n<p>\u4e3b\uff1amysql5.6\uff0c192.168.15.100\uff0c\u914d\u7f6e\u5982\u4e0b<\/p>\n<pre><code class=\"language-bash\">[mysqld]\n\u3002\u3002\u3002\u3002\u3002\u3002\u3002\n\nserver-id=100\nbinlog_format=row\nlog-bin=mysql-bin\nskip-name-resolve # \u8df3\u8fc7\u57df\u540d\u89e3\u6790\uff08\u975e\u5fc5\u987b\uff09\ngtid-mode=on # \u542f\u7528gtid\u7c7b\u578b\uff0c\u5426\u5219\u5c31\u662f\u666e\u901a\u7684\u590d\u5236\u67b6\u6784\nenforce-gtid-consistency=true #\u5f3a\u5236GTID\u7684\u4e00\u81f4\u6027\nlog-slave-updates=1 # slave\u66f4\u65b0\u662f\u5426\u8bb0\u5165\u65e5\u5fd7\uff085.6\u5fc5\u987b\u7684\uff09\nrelay_log_purge = 0 # \u5173\u95edrelay_log\u81ea\u52a8\u6e05\u9664\u529f\u80fd\uff0c\u4fdd\u969c\u6545\u969c\u65f6\u7684\u6570\u636e\u4e00\u81f4<\/code><\/pre>\n<p>\u4ece1\uff1amysql5.6\uff0c192.168.15.101\uff0c\u914d\u7f6e\u5982\u4e0b\uff0c\u53ea\u6709server-id\u4e0e\u4e3b\u4e0d\u540c<\/p>\n<pre><code class=\"language-bash\">[mysqld]\n\u3002\u3002\u3002\u3002\u3002\u3002\u3002\nserver-id=101\nbinlog_format=row\nlog-bin=mysql-bin\nskip-name-resolve # \u8df3\u8fc7\u57df\u540d\u89e3\u6790\uff08\u975e\u5fc5\u987b\uff09\ngtid-mode=on # \u542f\u7528gtid\u7c7b\u578b\uff0c\u5426\u5219\u5c31\u662f\u666e\u901a\u7684\u590d\u5236\u67b6\u6784\nenforce-gtid-consistency=true #\u5f3a\u5236GTID\u7684\u4e00\u81f4\u6027\nlog-slave-updates=1 # slave\u66f4\u65b0\u662f\u5426\u8bb0\u5165\u65e5\u5fd7\uff085.6\u5fc5\u987b\u7684\uff09\nrelay_log_purge = 0 # \u5173\u95edrelay_log\u81ea\u52a8\u6e05\u9664\u529f\u80fd\uff0c\u4fdd\u969c\u6545\u969c\u65f6\u7684\u6570\u636e\u4e00\u81f4<\/code><\/pre>\n<p>\u4ece2\uff1amysql5.6\uff0c192.168.15.102\uff0c\u914d\u7f6e\u5982\u4e0b\uff0c\u53ea\u6709server-id\u4e0e\u4e3b\u4e0d\u540c<\/p>\n<pre><code class=\"language-bash\">[mysqld]\n\u3002\u3002\u3002\u3002\u3002\u3002\u3002\nserver-id=102\nbinlog_format=row\nlog-bin=mysql-bin\nskip-name-resolve # \u8df3\u8fc7\u57df\u540d\u89e3\u6790\uff08\u975e\u5fc5\u987b\uff09\ngtid-mode=on # \u542f\u7528gtid\u7c7b\u578b\uff0c\u5426\u5219\u5c31\u662f\u666e\u901a\u7684\u590d\u5236\u67b6\u6784\nenforce-gtid-consistency=true #\u5f3a\u5236GTID\u7684\u4e00\u81f4\u6027\nlog-slave-updates=1 # slave\u66f4\u65b0\u662f\u5426\u8bb0\u5165\u65e5\u5fd7\uff085.6\u5fc5\u987b\u7684\uff09\nrelay_log_purge = 0 # \u5173\u95edrelay_log\u81ea\u52a8\u6e05\u9664\u529f\u80fd\uff0c\u4fdd\u969c\u6545\u969c\u65f6\u7684\u6570\u636e\u4e00\u81f4<\/code><\/pre>\n<p>\u4e3b\u5e93\u521b\u5efa\u590d\u5236\u8d26\u6237<\/p>\n<pre><code class=\"language-bash\">mysql&gt; GRANT REPLICATION SLAVE ON *.* TO egon@&#039;%&#039; IDENTIFIED BY &#039;123&#039;;\nQuery OK, 0 rows affected (0.00 sec)\n\nmysql&gt; flush privileges;\nQuery OK, 0 rows affected (0.00 sec)<\/code><\/pre>\n<p>\u4e24\u4e2a\u4ece\u5e93\u5f00\u542f\u590d\u5236<\/p>\n<pre><code class=\"language-bash\">change master to \n    master_host=&#039;192.168.15.100&#039;,\n    master_user=&#039;egon&#039;,\n    master_password=&#039;123&#039;,\n    MASTER_AUTO_POSITION=1;<\/code><\/pre>\n<p>\u542f\u52a8\u4ece\u5e93\u7684\u590d\u5236<\/p>\n<pre><code class=\"language-bash\">start slave;\nshow slave status\\G\nshow variables like &#039;%gtid%&#039;;<\/code><\/pre>\n<p>\u6d4b\u8bd5\u4e3b\u4ece<\/p>\n<p>\u5982\u679c\u60f3\u5236\u4f5c\u53cc\u4e3b\uff0c\u6b65\u9aa4\u5982\u4e0b<\/p>\n<pre><code class=\"language-bash\"># \u627e\u4e00\u53f0\u4ece\u5e93\uff0c\u5047\u8bbe\u4e3a192.168.15.101\uff0c\u5728\u8be5\u4e3b\u673a\u4e0a\u521b\u5efa\u8d26\u53f7\nGRANT REPLICATION SLAVE ON *.* TO egon@&#039;%&#039; IDENTIFIED BY &#039;123&#039;;\nflush privileges;\n\n# \u5728\u4e3b\u5e93\u4e0a\u6267\u884c\u4e0b\u8ff0\u64cd\u4f5c\uff0c\u6307\u5411\u4ece\u5e93192.168.15.101\nchange master to \n    master_host=&#039;192.168.15.101&#039;,\n    master_user=&#039;egon&#039;,\n    master_password=&#039;123&#039;,\n    MASTER_AUTO_POSITION=1;\n\n# \u5f00\u542f\u4e3b\u5e93\u7684slave\nstart slave;<\/code><\/pre>\n<h3>5.4 \u8df3\u8fc7\u4e8b\u52a1<\/h3>\n<pre><code class=\"language-bash\">\u4f20\u7edf\u7684\u590d\u5236\u4f8b\uff0c\u5982\u679c\u4e3b\u4ece\u590d\u5236\u9047\u5230\u4e86\u67d0\u6761sql\u9519\u8bef\uff0cSQL\u505c\u4e86\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e0b\u8ff0\u64cd\u4f5c\u8df3\u8fc7\u9519\u8bef\n    stop slave;\n    set global sql_slave_skip_counter=1;\n    start slave;\n\u5728\u4f20\u7edf\u7684\u4e3b\u4ece\u91cc\uff0ccounter=1\u662f\u8df3\u8fc7\u4e00\u6761sql\uff0c\u800cGTID\u662f\u57fa\u4e8e\u4e8b\u52a1\u7684\u4e3b\u4ece\u590d\u5236\uff0c\u5982\u679c\u8df3\u8fc7\u5c31\u662f\u8df3\u8fc7\u4e00\u6574\u4e2a\u4e8b\u52a1\uff0c\u6240\u4ee5\u4e0a\u8ff0\u65b9\u6cd5\u5e76\u4e0d\u9002\u7528\u4e8eGTID\n\n#\u8df3\u8fc7\u4e8b\u52a1\u7684\u65b9\u6cd5\uff1a\n1)\u505c\u6b62slave\u8fdb\u7a0b\nmysql&gt; STOP SLAVE;\n2)\u8bbe\u7f6e\u4e8b\u52a1\u53f7\uff0c\u6267\u884cshow slave status\\G\u67e5\u770bRetrieved_Gtid_Set\u7684\u503c\u5373\u4e8b\u52a1\u53f7\n\u5728session\u91cc\u8bbe\u7f6egtid_next\uff0c\u5373\u8df3\u8fc7\u8fd9\u4e2aGTID\nmysql&gt; SET GTID_NEXT= &#039;6d257f5b-5e6b-11e8-b668-5254003de1b6:1&#039;\n3)\u8bbe\u7f6e\u7a7a\u4e8b\u7269\nmysql&gt; BEGIN; COMMIT;\n4)\u6062\u590d\u4e8b\u7269\u53f7\nmysql&gt; SET SESSION GTID_NEXT = AUTOMATIC;\n5)\u542f\u52a8slave\u8fdb\u7a0b\nmysql&gt; START SLAVE;<\/code><\/pre>\n<h3>5.5 GTID\u4f18\u7f3a\u70b9\u603b\u7ed3<\/h3>\n<p><strong>GTID<\/strong>\u76f8\u6bd4\u4f20\u7edf\u590d\u5236\u7684\u4f18\u70b9(\u65b0\u7279\u6027)\uff1a<\/p>\n<blockquote>\n<p>1\u3001\u4e00\u4e2a\u4e8b\u52a1\u5bf9\u5e94\u4e00\u4e2a\u552f\u4e00ID\uff0c\u4e00\u4e2aGTID\u5728\u4e00\u4e2a\u670d\u52a1\u5668\u4e0a\u53ea\u4f1a\u6267\u884c\u4e00\u6b21\uff0c\u5f3a\u5316\u4e86\u4e00\u81f4\u6027<\/p>\n<p>2\u3001GTID\u662f\u7528\u6765\u4ee3\u66ff\u4f20\u7edf\u590d\u5236\u7684\u65b9\u6cd5\uff0cGTID\u590d\u5236\u4e0e\u666e\u901a\u590d\u5236\u6a21\u5f0f\u7684\u6700\u5927\u4e0d\u540c\u5c31\u662f\u4e0d\u9700\u8981\u6307\u5b9a\u4e8c\u8fdb\u5236\u6587\u4ef6\u540d\u548c\u4f4d\u7f6e\uff0c\u76f4\u63a5\u81ea\u52a8\u67e5\u627e<\/p>\n<p>3\u3001GTID\u4f1a\u5f00\u542f\u591a\u4e2aSQL\u7ebf\u7a0b\uff0c\u6bcf\u4e00\u4e2a\u5e93\uff0c\u5f00\u542f\u4e00\u4e2aSQL\u7ebf\u7a0b<\/p>\n<p>4\u3001\u652f\u6301\u5ef6\u65f6\u590d\u5236<\/p>\n<\/blockquote>\n<p><strong>GTID<\/strong>\u7684\u9650\u5236\uff1a<\/p>\n<blockquote>\n<p>1.\u4e0d\u652f\u6301\u975e\u4e8b\u52a1\u5f15\u64ce<\/p>\n<p>2.\u4e0d\u652f\u6301create table t1(&#8230;) select * from t2; \u8bed\u53e5\u590d\u5236(\u4e3b\u5e93\u76f4\u63a5\u62a5\u9519)<\/p>\n<p>\u3000\u3000\u539f\u7406\uff1a\uff08 \u4f1a\u751f\u6210\u4e24\u4e2asql\uff0c\u4e00\u4e2a\u662fDDL\u521b\u5efa\u8868SQL\uff0c\u4e00\u4e2a\u662finsert into \u63d2\u5165\u6570\u636e\u7684sql\u3002<\/p>\n<p>\u3000\u3000\u7531\u4e8eDDL\u4f1a\u5bfc\u81f4\u81ea\u52a8\u63d0\u4ea4\uff0c\u6240\u4ee5\u8fd9\u4e2asql\u81f3\u5c11\u9700\u8981\u4e24\u4e2aGTID\uff0c\u4f46\u662fGTID\u6a21\u5f0f\u4e0b\uff0c\u53ea\u80fd\u7ed9\u8fd9\u4e2asql\u751f\u6210\u4e00\u4e2aGTID \uff09\u3000\u3000<\/p>\n<p>3.\u4e0d\u5141\u8bb8\u4e00\u4e2aSQL\u540c\u65f6\u66f4\u65b0\u4e00\u4e2a\u4e8b\u52a1\u5f15\u64ce\u8868\u548c\u975e\u4e8b\u52a1\u5f15\u64ce\u8868<\/p>\n<p>4.\u5728\u4e00\u4e2a\u590d\u5236\u7ec4\u4e2d\uff0c\u5fc5\u987b\u8981\u6c42\u7edf\u4e00\u5f00\u542fGTID\u6216\u8005\u662f\u5173\u95edGTID<\/p>\n<p>5.\u5f00\u542fGTID\u9700\u8981\u91cd\u542f\uff085.7\u9664\u5916\uff09<\/p>\n<p>6.\u5f00\u542fGTID\u540e\uff0c\u5c31\u4e0d\u518d\u4f7f\u7528\u539f\u6765\u7684\u4f20\u7edf\u590d\u5236\u65b9\u5f0f<\/p>\n<p>7.\u5bf9\u4e8ecreate temporary table \u548c drop temporary table\u8bed\u53e5\u4e0d\u652f\u6301<\/p>\n<p>8.\u4e0d\u652f\u6301sql_slave_skip_counter<\/p>\n<p>9.mysqldump \u5907\u4efd\u8d77\u6765\u5f88\u9ebb\u70e6\uff0c\u9700\u8981\u989d\u5916\u52a0\u53c2\u6570 &#8211;set-gtid=on<\/p>\n<\/blockquote>\n<h2>\u516d \u90e8\u7f72MHA<\/h2>\n<h3>6.1 \u73af\u5883\u51c6\u5907<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u673a\u5668\u540d\u79f0<\/th>\n<th>IP\u5730\u5740<\/th>\n<th>\u89d2\u8272<\/th>\n<th>\u5907\u6ce8<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>manager<\/td>\n<td>192.168.15.200<\/td>\n<td>Manager\u63a7\u5236\u5668<\/td>\n<td>\u7528\u4e8e\u76d1\u63a7\u7ba1\u7406<\/td>\n<\/tr>\n<tr>\n<td>master<\/td>\n<td>192.168.15.100<\/td>\n<td>\u4e3b\u6570\u636e\u5e93\u670d\u52a1\u5668<\/td>\n<td>\u5f00\u542fbinlog\u3001relay-log\uff0c\u5173\u95edrelay_log_purge<\/td>\n<\/tr>\n<tr>\n<td>slave1<\/td>\n<td>192.168.15.101<\/td>\n<td>\u4ece1\u6570\u636e\u5e93\u670d\u52a1\u5668<\/td>\n<td>\u5f00\u542fbinlog\u3001relay-log\uff0c\u5173\u95edrelay_log_purge\u3001\u8bbe\u7f6eread_only=1<\/td>\n<\/tr>\n<tr>\n<td>slave2<\/td>\n<td>192.168.15.102<\/td>\n<td>\u4ece2\u6570\u636e\u5e93\u670d\u52a1\u5668<\/td>\n<td>\u5f00\u542fbinlog\u3001relay-log\uff0c\u5173\u95edrelay_log_purge\u3001\u8bbe\u7f6eread_only=1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5148\u57fa\u4e8e\u4e0a\u4e00\u5c0f\u8282\u5b8c\u6210\u57fa\u4e8eGTID\u7684\u4e00\u4e3b\u4e24\u4ece\u590d\u5236\uff0c\u5728\u505a\u4e3b\u4ece\u4e4b\u524d,\u8981\u4fdd\u8bc1\u4e3b\u4ece\u6570\u636e\u7684\u4e00\u81f4\u6027\u3002<\/p>\n<p>\u7136\u540e\u9700\u8981\u77e5\u9053\u7684\u662f\uff1a<\/p>\n<ul>\n<li>\n<p>1\u3001\u6240\u6709\u6570\u636e\u5e93\u670d\u52a1\u5668\u90fd\u9700\u8981\u5f00\u542fbinlog\u65e5\u5fd7<\/p>\n<\/li>\n<li>\n<p>2\u3001\u6240\u6709\u6570\u636e\u5e93\u90fd\u9700\u8981\u6709\u4e3b\u4ece\u590d\u5236\u7528\u6237\uff0c\u4f46\u6211\u4eec\u4e4b\u524d\u5728\u4e3b\u5e93\u4e0a\u6267\u884c\u8fc7\u4e0b\u8ff0\u547d\u4ee4\uff0c\u4ece\u5e93\u5df2\u7ecf\u540c\u6b65\u8fc7\u53bb\u4e86\uff0c\u6240\u4ee5\u4e0d\u5fc5\u91cd\u590d\u521b\u5efa\uff0c\u91cd\u590d\u521b\u5efa\u4e86\u4e5f\u6ca1\u5565\u5375\u7528<\/p>\n<pre><code class=\"language-bash\">GRANT REPLICATION SLAVE ON *.* TO egon@'%' IDENTIFIED BY '123';\nflush privileges;<\/code><\/pre>\n<\/li>\n<li>\n<p>3\u3001\u9700\u8981\u5728\u4e3b\u5e93\u4e0a\u521b\u5efa\u4e00\u4e2a\u7ba1\u7406\u7528\u6237\uff0c\u7528\u4e8e\u65e5\u540eMHA\u7684\u7ba1\u7406<\/p>\n<pre><code class=\"language-bash\"># \u5728\u4e3b\u5e93\u4e0a\u6267\u884c\u5373\u53ef\uff0c\u4ece\u5e93\u4f1a\u540c\u6b65\u8fc7\u53bb\ngrant all on *.* to 'mhaadmin'@'%' identified by '666';\nflush privileges;<\/code><\/pre>\n<\/li>\n<li>\n<p>4\u3001MHA \u5bf9 MYSQL \u590d\u5236\u73af\u5883\u6709\u7279\u6b8a\u8981\u6c42\uff0c\u4f8b\u5982\u5404\u8282\u70b9\u90fd\u8981\u5f00\u542f\u4e8c\u8fdb\u5236\u65e5\u5fd7\u53ca\u4e2d\u7ee7\u65e5\u5fd7\uff0c\u5404\u4e2a\u201cslave\u8282\u70b9\u201d\u5fc5\u987b\u663e\u5f0f\u542f\u75283\u5176<code>read-only<\/code>\u5c5e\u6027\uff0c\u5e76\u5173\u95ed<code>relay_log_purge<\/code>\u529f\u80fd\u7b49\u3002\u6240\u4ee5\u6211\u4eec\u9700\u8981<\/p>\n<pre><code class=\"language-bash\">#1\u3001\u5728\u4ece\u5e93\u4e0a\u8fdb\u884c\u64cd\u4f5c\n#\u8bbe\u7f6e\u53ea\u8bfb,\u4e0d\u8981\u6dfb\u52a0\u914d\u7f6e\u6587\u4ef6,\u56e0\u4e3a\u4ece\u5e93\u4ee5\u540e\u53ef\u80fd\u53d8\u6210\u4e3b\u5e93\nmysql> set global read_only=1;\n\n#2\u3001\u5728\u6240\u6709\u5e93\u4e0a\u90fd\u8fdb\u884c\u64cd\u4f5c\uff08\u8fd9\u4e00\u6b65\u6211\u4eec\u57285.3\u5c0f\u8282\u5df2\u7ecf\u505a\u8fc7\u4e86\uff0c\u6b64\u5904\u5ffd\u7565\u5373\u53ef\uff09\n#\u5173\u95edMySQL\u81ea\u52a8\u6e05\u9664relaylog\u7684\u529f\u80fd\nmysql> set global relay_log_purge = 0;\n\n#\u7f16\u8f91\u914d\u7f6e\u6587\u4ef6\n[root@mysql-db02 ~]# vim \/etc\/my.cnf\n[mysqld]\n#\u7981\u7528\u81ea\u52a8\u5220\u9664relay log\u6c38\u4e45\u751f\u6548\nrelay_log_purge = 0<\/code><\/pre>\n<\/li>\n<\/ul>\n<h3>6.2 \u914d\u7f6e\u514d\u5bc6\u767b\u5f55\uff08\u6240\u6709\u4e3b\u673a\u4e4b\u95f4\u4e92\u505a\uff09<\/h3>\n<h4>\u914d\u7f6e\u514d\u5bc6\u767b\u5f55\uff08\u6bcf\u4e00\u53f0\u673a\u5668\u90fd\u6267\u884c\u4e0b\u8ff0\u547d\u4ee4\uff09<\/h4>\n<pre><code class=\"language-bash\">#\u521b\u5efa\u79d8\u94a5\u5bf9\n#\u6b63\u5e38\u521b\u5efa ssh-keygen \u9700\u8981\u4ea4\u4e92 \u6309\u56de\u8f66\uff0c\u7528\u4ee5\u4e0b\u65b9\u6cd5\u8df3\u8fc7\u4ea4\u4e92\nssh-keygen -t dsa -P &#039;&#039; -f ~\/.ssh\/id_dsa &gt;\/dev\/null 2&gt;&amp;1\n#\u53d1\u9001\u516c\u94a5\uff0c\u5305\u62ec\u81ea\u5df1\nssh-copy-id -i \/root\/.ssh\/id_dsa.pub root@192.168.15.200\nssh-copy-id -i \/root\/.ssh\/id_dsa.pub root@192.168.15.100\nssh-copy-id -i \/root\/.ssh\/id_dsa.pub root@192.168.15.101\nssh-copy-id -i \/root\/.ssh\/id_dsa.pub root@192.168.15.102<\/code><\/pre>\n<h3>6.3 \u5b89\u88c5\u8f6f\u4ef6\u5305<\/h3>\n<p>\u5b89\u88c5\u4f9d\u8d56\uff08\u6240\u6709\u673a\u5668\uff09<\/p>\n<pre><code class=\"language-bash\"># \u5b89\u88c5yum\u6e90\nwget http:\/\/dl.fedoraproject.org\/pub\/epel\/epel-release-latest-7.noarch.rpm\nrpm -ivh epel-release-latest-7.noarch.rpm\n\n# \u5b89\u88c5MHA\u4f9d\u8d56\u7684perl\u5305\nyum install -y perl-DBD-MySQL perl-Config-Tiny perl-Log-Dispatch perl-Parallel-ForkManager<\/code><\/pre>\n<p>\u6ce8\u610f\u5148\u540e\u987a\u5e8f<\/p>\n<p>\u5148\u5728\u6240\u6709\u4e3b\u673a\u4e0a\u5b89\u88c5node\u5305<\/p>\n<pre><code class=\"language-bash\">wget https:\/\/qiniu.wsfnk.com\/mha4mysql-node-0.58-0.el7.centos.noarch.rpm --no-check-certificate\nrpm -ivh mha4mysql-node-0.58-0.el7.centos.noarch.rpm<\/code><\/pre>\n<h4>\u7136\u540e\u518d\u53bbmanager\u4e3b\u673a\u5b89\u88c5manager\u5305\uff08manager\u673a\u5668\uff0c192.168.15.200\uff09<\/h4>\n<pre><code class=\"language-bash\">wget https:\/\/qiniu.wsfnk.com\/mha4mysql-manager-0.58-0.el7.centos.noarch.rpm --no-check-certificate\nrpm -ivh mha4mysql-manager-0.58-0.el7.centos.noarch.rpm<\/code><\/pre>\n<h3>6.4 \u914d\u7f6eMHA Manager<\/h3>\n<h4>\uff081\uff09\u5728Manager\u4e3b\u673a\u4e0a\u521b\u5efa\u5de5\u4f5c\u76ee\u5f55<\/h4>\n<pre><code class=\"language-bash\">mkdir -p \/service\/mha\/\nmkdir \/service\/mha\/app1<\/code><\/pre>\n<h4>(2) \u4fee\u6539\u914d\u7f6e<\/h4>\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=\"560\" type=\"hidden\"\/><input name=\"_init_callback\" value=\"InitLogin\" type=\"hidden\"\/><input name=\"post_id\" value=\"560\" type=\"hidden\"\/><input name=\"rt_ype\" value=\"1\" type=\"hidden\"\/><input name=\"nonce\" value=\"2217b8fb1a\" 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>MHA\u9ad8\u53ef\u7528 \u4e00 MHA\u80cc\u666f\u4ecb\u7ecd MHA \u662fPerl\u8bed\u8a00\u5199\u7684\uff0c\u5f00\u6e90\u7684MYSQL\u6545\u969c\u5207\u6362\u65b9\u6848\uff1b\u5168\u79f0\uff1aMaster [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":565,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[95],"tags":[21,19,99,22,100,20],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/560"}],"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=560"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/560\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/media\/565"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=560"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=560"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=560"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}