{"id":963,"date":"2017-10-09T22:23:13","date_gmt":"2017-10-09T14:23:13","guid":{"rendered":"http:\/\/www.5x44.cn\/?p=963"},"modified":"2018-07-03T09:10:27","modified_gmt":"2018-07-03T01:10:27","slug":"mysql%e4%b8%bb%e4%bb%8e%e5%a4%8d%e5%88%b6","status":"publish","type":"post","link":"https:\/\/www.5x44.cn\/?p=963","title":{"rendered":"mysql5.7\u4e3b\u4ece\u590d\u5236\uff081\uff09"},"content":{"rendered":"<p>Chapter 16 Replication<\/p>\n<h1>\u4e00\u3001\u4ecb\u7ecd<\/h1>\n<p>\u4e3b\u4ece\u590d\u5236\u5141\u8bb8\u6570\u636e\u4ece\u4e00\u4e2amysql\u6570\u636e\u5e93\u670d\u52a1\u5668\uff08master\uff09\u590d\u5236\u5230\u53e6\u4e00\u4e2a\u6216\u591a\u4e2amysql\u670d\u52a1\u5668\uff08slave\uff09\u4e0a\u3002<strong>\u9ed8\u8ba4\u60c5\u51b5\u4e3b\u4ece\u590d\u5236\u662f\u5f02\u6b65\u6267\u884c\u7684<\/strong>\uff1b\u4ece\u5e93\u4e0d\u7528\u4e00\u76f4\u94fe\u63a5\u5230\u4e3b\u5e93\u4e0a\u66f4\u65b0\u4e3b\u5e93\u6570\u636e\u3002\u6839\u636e\u914d\u7f6e\uff0c\u4f60\u53ef\u4ee5\u670d\u52a1\u6240\u6709\u7684\u6570\u636e\u5e93\u6216\u90e8\u5206\u7684\u6570\u636e\u5e93\uff0c\u751a\u81f3\u6570\u636e\u5e93\u4e0a\u7684\u67d0\u4e2a\u8868\u3002<\/p>\n<h2>Mysql\u4e2d\u590d\u5236\u4f18\u70b9\u5305\u62ec\uff1a<\/h2>\n<ul>\n<li>\u6a2a\u5411\u6269\u5c55\uff08Scale-out\uff09\u89e3\u51b3\u529e\u6cd5\uff1a\u628a\u8d1f\u8f7d\u5206\u6563\u5230\u4ece\u5e93\u4e0a\uff0c\u4ee5\u6539\u53d8\u6027\u80fd\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6240\u6709\u7684\u5199\u548c\u66f4\u65b0\u90fd\u5728\u4e3b\u5e93\u4e0a\u6267\u884c\u3002\u8fd9\u65f6\u53ef\u4ee5\u628a\u8bfb\u64cd\u4f5c\u653e\u5230\u4e00\u4e2a\u6216\u591a\u4e2a\u4ece\u5e93\u4e0a\u6267\u884c\u3002\u8fd9\u79cd\u6a21\u578b\u53ef\u4ee5\u6539\u5584\u5199\u6027\u80fd\uff08\u56e0\u4e3a\u4e3b\u5e93\u53ea\u8d1f\u8d23\u5199\uff09\u7684\u540c\u65f6\u589e\u52a0\u8bfb\u53d6\u901f\u5ea6\u3002<\/li>\n<li>\u6570\u636e\u5b89\u5168\uff1a\u56e0\u4e3a\u6570\u636e\u88ab\u590d\u5236\u5230\u4ece\u5e93\u4e0a\uff0c\u5e76\u4e14\u4ece\u5e93\u53ef\u4ee5\u6682\u505c\u590d\u5236\u8fdb\u8fdb\u7a0b\uff0c\u5b83\u53ef\u4ee5\u8fd0\u884c\u5907\u4efd\u670d\u52a1\uff0c\u800c\u4e0d\u9700\u8981\u4e2d\u65ad\u4e3b\u5e93\u7684\u670d\u52a1\u3002<\/li>\n<li>\u5206\u6790\uff1a\u5728\u7ebf\u6570\u636e\u5b58\u5728\u4e3b\u5e93\u4e0a\uff0c\u540c\u65f6\u53ef\u4ee5\u5728\u4ece\u5e93\u4e0a\u6267\u884c\u6570\u636e\u5206\u6790\u64cd\u4f5c\uff0c\u8fd9\u6837\u4e0d\u4f1a\u5f71\u54cd\u4e3b\u5e93\u7684\u6027\u80fd\u3002<\/li>\n<li>\u8fdc\u8ddd\u79bb\u6570\u636e\u5206\u5e03\uff1a\u53ef\u4ee5\u7528\u590d\u5236\u529f\u80fd\u53bb\u521b\u5efa\u6570\u636e\u7684\u672c\u5730\u590d\u672c\uff0c\u7528\u4e8e\u8fdc\u7a0b\u7ad9\u70b9\u4f7f\u7528\uff0c\u800c\u4e0d\u9700\u8981\u8ba9\u4ed6\u4eec\u6c38\u4e45\u7684\u8bbf\u95ee\u4e3b\u5e93\u3002<\/li>\n<\/ul>\n<p>MySQL5.7\u652f\u6301\u4e0d\u540c\u7684\u590d\u5236\u65b9\u6cd5\u3002<strong>\u4f20\u7edf\u7684\u65b9\u6cd5<\/strong>\u662f\u57fa\u4e8e\u4ece\u4e3b\u5e93\u7684bin log\u4e2d\u590d\u5236\u4e8b\u4ef6\uff0c\u5e76\u8bf7\u6c42\u65e5\u5fd7\u6587\u4ef6\u548c\u65e5\u5fd7\u7684\u5f53\u524d\u4f4d\u7f6e\uff0c\u901a\u8fc7\u8fd9\u79cd\u65b9\u6cd5\u5728\u4e3b\u4ece\u5e93\u4e2d\u540c\u6b65\u6570\u636e\u3002\u6700\u65b0\u7684\u65b9\u6cd5\u662f\u57fa\u4e8e<u>\u5168\u5c40\u4e8b\u52a1\u6807\u793a\u7b26<\/u>\uff08GTIDs\uff09\uff0c\u5b83\u662f\u4e8b\u52a1\u6027\u8d28\u7684\uff0c\u56e0\u6b64\u4e0d\u9700\u8981\u518d\u8bf7\u6c42bin log\u6587\u4ef6\u6216\u6587\u4ef6\u4e2d\u7684\u4f4d\u7f6e\u4e86\uff0c\u5b83\u6781\u5927\u7684\u7b80\u5316\u4e86\u5f88\u591a\u65e5\u5e38\u590d\u5236\u4efb\u52a1\u3002\u4f7f\u7528GTIDs\u7684\u590d\u5236\uff0c\u53ef\u4ee5\u4fdd\u8bc1\u6240\u6709\u7684\u4e8b\u52a1\u5728\u4e3b\u5e93\u4e0a\u63d0\u4ea4\u7684\u540c\u65f6\u4e5f\u5728\u4ece\u5e93\u4e0a\u63d0\u4ea4\uff0c\u8fd9\u6837\u4e3b\u4ece\u5e93\u7684\u4e00\u81f4\u6027\u5f97\u5230\u4e86\u4fdd\u8bc1\u3002<\/p>\n<p>MySQL\u652f\u6301\u4e0d\u540c\u7c7b\u578b\u7684\u540c\u6b65\u65b9\u6cd5\u3002\u6700\u521d\u59cb\u7684\u540c\u6b65\u65b9\u6cd5\u662fOne-way\u2014\u2014\u5f02\u6b65\u590d\u5236\uff0c\u5728\u8fd9\u79cd&#8221;\u540c\u6b65&#8221;\u65b9\u6cd5\u65f6\uff0c\u4e00\u4e2a\u670d\u52a1\u5668\u505a\u4e3a\u4e3b\u5e93\uff0c\u540c\u65f6\u6709\u4e00\u4e2a\u6216\u591a\u4e2a\u670d\u52a1\u5668\u505a\u4e3a\u4ece\u5e93\u3002<\/p>\n<p>\u4e0e\u5176\u76f8\u5bf9\u7684\u53e6\u4e00\u4e2a\u540c\u6b65\u65b9\u6cd5\u662fNDB\u7fa4\u96c6\u7684\u4e00\u4e2a\u7279\u6027\u3002<\/p>\n<p>\u5728MYSQL5.7\u4e2d\uff0c\u534a\u540c\u6b65\uff08semisynchronous\uff09\u590d\u5236\u88ab\u652f\u6301\uff0c\u5e76\u5185\u5efa\u5230\u5f02\u6b65\u590d\u5236\u5f53\u4e2d\u3002\u5728\u4f7f\u7528\u534a\u540c\u6b65\u590d\u5236\u65f6\uff0c\u4e3b\u5e93\u6267\u884c\u63d0\u4ea4\u4f1a\u88ab\u963b\u585e\uff0c\u76f4\u5230\u81f3\u5c11\u4e00\u4e2a\u4ece\u5e93\u5df2\u7ecf\u6536\u5230\u5e76\u8bb0\u5f55\u4e86\u4e8b\u52a1\u4e8b\u4ef6\u4e4b\u540e\u963b\u585e\u624d\u4f1a\u89e3\u9664\uff1b see <a class=\"xref\" title=\"16.3.9\u00a0Semisynchronous Replication\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-semisync.html\">Section\u00a016.3.9, \u201cSemisynchronous Replication\u201d<\/a>\u3002<\/p>\n<p>MYSQL5.7\u540c\u6837\u652f\u6301\u5ef6\u8fdf\u590d\u5236\uff0c\u5c31\u50cf\u4ece\u5e93\u6545\u610f\u8981\u5728\u4e3b\u5e93\u4e4b\u540e\u4e00\u6bb5\u65f6\u95f4\u518d\u8fdb\u884c\u64cd\u4f5c\u4e00\u6837\uff08see <a class=\"xref\" title=\"16.3.10\u00a0Delayed Replication\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-delayed.html\">Section\u00a016.3.10, \u201cDelayed Replication\u201d<\/a>.\uff09\u3002<\/p>\n<p>\u5bf9\u4e8e\u540c\u6b65\u590d\u5236\u7684\u9700\u6c42\uff0c\u8981\u4f7f\u7528NDB\u96c6\u7fa4\uff08see <a class=\"xref\" title=\"Chapter\u00a021\u00a0MySQL NDB Cluster 7.5 and NDB Cluster 7.6\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/mysql-cluster.html\">Chapter\u00a021, <i>MySQL NDB Cluster 7.5 and NDB Cluster 7.6<\/i><\/a>\uff09<\/p>\n<p>\u591a\u79cd\u590d\u5236\u65b9\u6cd5\u7684\u9009\u62e9\u53d6\u51b3\u4e8e\u6570\u636e\u548c\u5f15\u64ce\u3002<\/p>\n<p>\u8fd9\u6709\u4e24\u79cd\u6838\u5fc3\u590d\u5236\u7c7b\u578b\u683c\u5f0f\uff0c\u57fa\u4e8e\u590d\u5236\u8bed\u53e5\uff08SBR,Statement Based Replication\uff09\u5b83\u590d\u5236\u6240\u6709\u7684SQL\u8bed\u53e5\u3002\u548c\u57fa\u4e8e\u590d\u5236\u6570\u636e\uff08RBR\uff0cRow Based Replication\uff09\u5b83\u590d\u5236\u539f\u59cb\u6570\u636e\u3002\u8fd8\u53ef\u4ee5\u4f7f\u7528\u7b2c\u4e09\u79cd\uff0c\u57fa\u4e8e\u6df7\u5408\u7684\u590d\u5236\uff08MBR\uff0cMixed Based Replication\uff09\u3002\u4e0d\u540c\u590d\u5236\u683c\u5f0f\u7684\u4fe1\u606f <a class=\"xref\" title=\"16.2.1\u00a0Replication Formats\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-formats.html\">Section\u00a016.2.1, \u201cReplication Formats\u201d<\/a><\/p>\n<p>\u63a7\u5236\u590d\u5236\u7684\u9009\u9879\u548c\u53d8\u91cf\uff1a<a class=\"xref\" title=\"16.1.6\u00a0Replication and Binary Logging Options and Variables\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-options.html\">Section\u00a016.1.6, \u201cReplication and Binary Logging Options and Variables\u201d<\/a>.<\/p>\n<p>&nbsp;<\/p>\n<h1>\u4e8c\u3001\u5f00\u542f\u4e3b\u4ece\u590d\u5236<\/h1>\n<h2>\u57fa\u4e8eBINARY LOG\u4e3b\u4ece\u590d\u5236\u6cd5\uff1a<\/h2>\n<p><a class=\"xref\" title=\"16.1.2\u00a0Setting Up Binary Log File Position Based Replication\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-howto.html\">Section\u00a016.1.2, \u201cSetting Up Binary Log File Position Based Replication\u201d<\/a>,<\/p>\n<p>1\u3001\u5728\u914d\u7f6e\u6587\u4ef6my.cnf\u4e2d\u914d\u7f6ebind-address 0.0.0.0\uff0c\u5f00\u542fbin log\uff0c\u8bbe\u7f6eserver-id\uff0c\u4e3b\u4ece\u670d\u52a1\u5668\u7684server-id\u8981\u8bbe\u7f6e\u4e3a\u4e0d\u540c\u7684\u503c\uff0c\u4e0d\u7136\u4ece\u5e93\u4e0d\u4f1a\u590d\u5236\u4e3b\u5e93\u6570\u636e\u3002<\/p>\n<p>2\u3001\u5728\u4e3b\u670d\u52a1\u5668\u4e0a\u5efa\u4e00\u4e2a\u7528\u6237\uff0c\u8d4b\u4e88replication slave\u6743\u9650:<code>grant replication slave on *.* to repl@'192.168.1.50' ;<\/code><\/p>\n<p>3\u3001\u914d\u7f6e\u590d\u5236\u4fe1\u606f\uff0c\u5728\u4ece\u5e93\u4e0a\u6267\u884c\uff1a<\/p>\n<pre>CHANGE MASTER TO\r\n  MASTER_HOST='master2.mycompany.com',\r\n  MASTER_USER='replication',\r\n  MASTER_PASSWORD='bigs3cret',\r\n  MASTER_PORT=3306,\r\n  MASTER_LOG_FILE='master2-bin.001',\r\n  MASTER_LOG_POS=4,#binlog\u7684\u4f4d\u7f6e\r\n  MASTER_CONNECT_RETRY=10;\r\n<\/pre>\n<p>4\u3001\u5728\u4ece\u5e93\u4e0a\u542f\u52a8\u590d\u5236\uff1a<br \/>\nstart slave<\/p>\n<h2>\u4f7f\u7528\u4e2d\u7684\u95ee\u9898<\/h2>\n<h3>1\u3001\u4ece\u5e93\u5e94\u7528relay-log\u901f\u5ea6\u6162<\/h3>\n<h4>\u5e76\u884c\u590d\u5236<\/h4>\n<p>\u6309\u987a\u5e8f\u5e76\u884c\u5316\uff1aslave_preserve_commit_order=1<\/p>\n<p>\u5e76\u884c\u65b9\u5f0f\u4f7f\u7528\u201c\u4e8b\u52a1\u7ec4\u201d\uff1aslave_parallel_type=LOGICAL_CLOCK<\/p>\n<p>\u5e76\u884c\u7ebf\u7a0b\u6570\uff1aslave_parallel_workers=N<\/p>\n<p>\u5f00\u542flog-bin\u548clog-slave-updates(\u7ea7\u8054\u66f4\u65b0)\u8fd9\u4e24\u4e2a\u9009\u9879\u662f\u5fc5\u987b\u5f00\u542f\u7684\u3002<\/p>\n<h3>2\u3001\u6570\u636e\u4e0d\u4e00\u81f4\u7684\u95ee\u9898<\/h3>\n<p>1\u3001\u5f00\u542f\u534a\u540c\u6b65\u590d\u5236<\/p>\n<p>2\u3001\u4f7f\u7528GTID\u590d\u5236\u65b9\u6cd5<\/p>\n<h2>\u57fa\u4e8eGTID\u4e8b\u52a1\u590d\u5236\u6cd5\uff1a<\/h2>\n<p><a class=\"xref\" title=\"16.1.3\u00a0Replication with Global Transaction Identifiers\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-gtids.html\">Section\u00a016.1.3, \u201cReplication with Global Transaction Identifiers\u201d<\/a><\/p>\n<p>\u5f53\u4f7f\u7528GTID\u590d\u5236\u6cd5\u65f6\uff0c\u6bcf\u4e2a\u4e8b\u52a1\u90fd\u88ab\u6807\u8bb0\u5e76\u8ddf\u8e2a\uff0c\u56e0\u4e3a\u8fd9\u4e9b\u5728\u539f\u59cb\u4e3b\u670d\u52a1\u5668\u4e0a\u5e94\u7528\u7684\u4e8b\u52a1\u540c\u6837\u8981\u88ab\u4ece\u670d\u52a1\u5668\u5e94\u7528\u3002\u5728\u8fd9\u79cd\u65b9\u6cd5\u4e0b\u4e00\u81f4\u6027\u53ef\u4ee5\u5f97\u5230\u4fdd\u8bc1\u3002\u53ef\u4ee5\u5728GTID\u65b9\u5f0f\u4e2d\u4f7f\u7528statement-based\u6216row-based\u590d\u5236\u65b9\u6cd5\uff08see <a class=\"xref\" title=\"16.2.1\u00a0Replication Formats\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-formats.html\">Section\u00a016.2.1, \u201cReplication Formats\u201d<\/a>\uff09\u3002\u4f46\u662f\u5f3a\u70c8\u5efa\u8bae\u4f7f\u7528row-based\u683c\u5f0f\u3002<\/p>\n<h3>\u5728MYSQL5.7\u4e2d\u5982\u4f55\u521b\u5efa\u4e00\u4e2aGTID\u4e3b\u4ece\u590d\u5236<\/h3>\n<p>(see <a class=\"xref\" title=\"16.1.3.1\u00a0GTID Concepts\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-gtids-concepts.html\">Section\u00a016.1.3.1, \u201cGTID Concepts\u201d<\/a>)<\/p>\n<p>GTID\u662f\u5728\u4e3b\u670d\u52a1\u5668\u4e0a\u63d0\u4ea4\u4e8b\u52a1\u65f6\u7684\u552f\u4e00ID\uff0c\u8fd9\u4e2aID\u4e0d\u4ec5\u4ec5\u662f\u5728\u4e3b\u670d\u52a1\u5668\u4e0a\u662f\u552f\u4e00\u7684\uff0c\u5b83\u5728\u6574\u4e2a\u670d\u52a1\u5668\u7fa4\u4e2d\u4e5f\u662f\u552f\u4e00\u7684\uff0c\u4e8b\u52a1\u548cGTID\u662f\u4e00\u4e00\u5bf9\u5e94\u7684\u3002<\/p>\n<p>GTID\u662f\u4e00\u5bf9\u7531\u5192\u53f7\uff08\uff1a\uff09\u5206\u5f00\u7684\u6570\uff0c\u5982\uff1a<\/p>\n<pre class=\"programlisting line-numbers one-line language-ini\"><code class=\" language-ini\"><span class=\"token constant\">GTID<\/span> <span class=\"token attr-value\"><span class=\"token punctuation\">=<\/span> <em class=\"replaceable\">source_id<\/em>:<em class=\"replaceable\">transaction_id<\/em><\/span><\/code><\/pre>\n<p><strong>source_id<\/strong>\u6807\u793a\u4e86\u539f\u59cb\u670d\u52a1\u5668\u3002\u901a\u5e38\u8fd9\u90e8\u5206\u662f\u670d\u52a1\u5668\u7684<a class=\"link\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-options.html#sysvar_server_uuid\"><code class=\"literal\">server_uuid<\/code><\/a>\u3002transaction_id\u662f\u4e8b\u52a1\u7684\u5e8f\u5217\u53f7\uff0c\u5b83\u7531\u4e8b\u52a1\u63d0\u4ea4\u7684\u987a\u5e8f\u51b3\u5b9a\u3002\u5982\uff1a\u7b2c\u4e00\u4e2a\u63d0\u4ea4\u7684\u4e8b\u52a1transaction_id\u662f1\uff0c\u90a3\u4e48\u7b2c10\u4e2a\u5c31\u662f10\uff0c\u8fd9\u4e2a\u503c\u4e0d\u4f1a\u662f0\u3002\u4e00\u4e2a\u5b8c\u6574\u7684GTID\u770b\u8d77\u6765\u662f\u8fd9\u4e2a\u6837\u5b50\u7684\uff1a<\/p>\n<pre class=\"programlisting line-numbers one-line language-simple\"><code class=\" language-simple\">3E11FA47<span class=\"token operator\">-<\/span>71CA<span class=\"token operator\">-<\/span>11E1<span class=\"token operator\">-<\/span>9E33<span class=\"token operator\">-<\/span>C80AA9429562<span class=\"token operator\">:<\/span>23<\/code><\/pre>\n<p>\u8fd9\u4e2a\u683c\u5f0f\u7684GTID\u4f1a\u51fa\u73b0\u5728<code>SHOW SLAVE STATUS<\/code>\u548cbinary log\u4e2d\u3002\u5b83\u4eec\u540c\u6837\u80fd\u5728\u4f7f\u7528<code>mysqlbinlog --base64-output=DECODE-ROWS<\/code>\u67e5\u770b\u65e5\u5fd7\u6587\u4ef6\u6216<code>SHOW BINLOG EVENTS<\/code>\u7684\u8f93\u51fa\u4e2d\u770b\u5230\u3002<br \/>\n<code>SHOW MASTER STATUS<\/code>\u6216<code>SHOW SLAVE  STATUS<\/code>\u8f93\u51fa\u7684GTID\u5e8f\u5217\u4f1a\u88ab\u96c6\u6210\u5230\u4e00\u4e2a\u5355\u72ec\u8868\u8fbe\u5f0f\uff0c\u5982\uff1a<\/p>\n<pre class=\"programlisting line-numbers one-line language-simple\"><code class=\" language-simple\">3E11FA47<span class=\"token operator\">-<\/span>71CA<span class=\"token operator\">-<\/span>11E1<span class=\"token operator\">-<\/span>9E33<span class=\"token operator\">-<\/span>C80AA9429562<span class=\"token operator\">:<\/span>1<span class=\"token operator\">-<\/span>5<\/code><\/pre>\n<p>\u8fd9\u4e2a\u4f8b\u5b50\u663e\u793a\u4e86\u7b2c\u4e00\u5230\u7b2c\u4e94\u4e2a\u4e8b\u52a1\u3002\u670d\u52a1\u5668\u7684UUID\u662f<\/p>\n<pre class=\"programlisting line-numbers one-line language-simple\"><code class=\" language-simple\">3E11FA47<span class=\"token operator\">-<\/span>71CA<span class=\"token operator\">-<\/span>11E1<span class=\"token operator\">-<\/span>9E33<span class=\"token operator\">-<\/span>C80AA9429562\u3002<\/code><\/pre>\n<p>\u8fd9\u79cd\u683c\u5f0f\u540c\u6837\u88abSTART SLAVE\u9009\u9879\u7684SQL_BEFORE_GTIDS\u548cSQL_AFTER_GTID\u652f\u6301\u3002<\/p>\n<h4>GTID\u96c6<\/h4>\n<p>GTID\u96c6\u662fGTID\u7684\u96c6\u5408\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre class=\"programlisting line-numbers language-sql\"><code class=\" language-sql\"><em class=\"replaceable\">gtid_set<\/em>:\r\n    <em class=\"replaceable\">uuid_set<\/em> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">,<\/span> <em class=\"replaceable\">uuid_set<\/em><span class=\"token punctuation\">]<\/span> <span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span>\r\n    <span class=\"token operator\">|<\/span> <span class=\"token string\">''<\/span>\r\n\r\n<em class=\"replaceable\">uuid_set<\/em>:\r\n    <em class=\"replaceable\">uuid<\/em>:<span class=\"token keyword\"><em class=\"replaceable\">interval<\/em><\/span><span class=\"token punctuation\">[<\/span>:<span class=\"token keyword\"><em class=\"replaceable\">interval<\/em><\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span>\r\n\r\n<em class=\"replaceable\">uuid<\/em>:\r\n    <em class=\"replaceable\">hhhhhhhh<\/em><span class=\"token operator\">-<\/span><em class=\"replaceable\">hhhh<\/em><span class=\"token operator\">-<\/span><em class=\"replaceable\">hhhh<\/em><span class=\"token operator\">-<\/span><em class=\"replaceable\">hhhh<\/em><span class=\"token operator\">-<\/span><em class=\"replaceable\">hhhhhhhhhhhh<\/em>\r\n\r\n<em class=\"replaceable\">h<\/em>:\r\n    <span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token operator\">-<\/span><span class=\"token number\">9<\/span><span class=\"token operator\">|<\/span>A<span class=\"token operator\">-<\/span>F<span class=\"token punctuation\">]<\/span>\r\n\r\n<span class=\"token keyword\"><em class=\"replaceable\">interval<\/em><\/span>:\r\n    <em class=\"replaceable\">n<\/em><span class=\"token punctuation\">[<\/span><span class=\"token operator\">-<\/span><em class=\"replaceable\">n<\/em><span class=\"token punctuation\">]<\/span>\r\n\r\n    <span class=\"token punctuation\">(<\/span><em class=\"replaceable\">n<\/em> <span class=\"token operator\">&gt;=<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<p>GTID\u96c6\u5728MYSQL\u4e2d\u6709\u51e0\u79cd\u7528\u6cd5\u3002\u4f8b\u5982\uff0c\u5b58\u50a8\u5728 <a class=\"link\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-options-gtids.html#sysvar_gtid_executed\"><code class=\"literal\">gtid_executed<\/code><\/a> \u548c <a class=\"link\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-options-gtids.html#sysvar_gtid_purged\"><code class=\"literal\">gtid_purged<\/code><\/a> \u4e2d\u7684\u7cfb\u7edf\u53d8\u91cf\uff0c\u88ab\u63cf\u8ff0\u6210GTID\u96c6\u3002\u53e6\u5916\uff0c <a class=\"link\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/gtid-functions.html#function_gtid-subset\"><code class=\"literal\">GTID_SUBSET()<\/code><\/a> \u548c <a class=\"link\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/gtid-functions.html#function_gtid-subtract\"><code class=\"literal\">GTID_SUBTRACT()<\/code><\/a> \u51fd\u6570\u4ee5GTID\u96c6\u505a\u4e3a\u8f93\u5165\u3002\u5f53GTID\u96c6\u4ece\u670d\u52a1\u5668\u53d8\u91cf\u4e2d\u8fd4\u56de\u65f6\uff0cUUID\u662f\u4ee5\u5b57\u6bcd\u548c\u6570\u5b57\u5347\u5e8f\u6392\u5217\u7684\u3002<\/p>\n<p>GTID\u4e00\u76f4\u7528\u4e8e\u4e3b\u4ece\u670d\u52a1\u5668\u4e4b\u95f4\u3002\u8fd9\u610f\u5473\u7740\u4f60\u53ef\u4ee5\u4eceBINARY LOG\u4e2d\u627e\u5230\u4efb\u4f55\u4e8b\u52a1\u5e94\u7528\u4e8e\u54ea\u53f0\u4ece\u670d\u52a1\u5668\u4e0a\u3002\u53e6\u5916\uff0c\u4e00\u4f46\u88ab\u63d0\u4ea4\u7684\u4e8b\u52a1\u88ab\u7ed9\u4e88\u4e00\u4e2aGTID\uff0c\u4efb\u4f55\u5b50\u4e8b\u52a1\u90fd\u6709\u76f8\u540c\u7684GTID\uff0c\u800c\u670d\u52a1\u5668\u4f1a\u5ffd\u7565\u5b83\u4eec\u3002\u56e0\u6b64\uff0c\u4e00\u4e2a\u5728\u4e3b\u670d\u52a1\u5668\u4e0a\u88ab\u63d0\u4ea4\u7684\u4e8b\u52a1\uff0c\u53ea\u80fd\u5728\u4ece\u670d\u52a1\u5668\u4e0a\u5e94\u7528\u4e00\u6b21\uff0c\u8fd9\u53ef\u4ee5\u4fdd\u8bc1\u4e00\u81f4\u6027\u3002<\/p>\n<p>\u5f53\u4f7f\u7528GTID\u65f6\uff0c\u4ece\u670d\u52a1\u5668\u4e0d\u9700\u8981\u4efb\u4f55\u975e\u672c\u5730\u6570\u636e\uff0c\u5982\u5728\u4e3b\u670d\u52a1\u5668\u4e0a\u7684\u6587\u4ef6\u540d\u548c\u8be5\u6587\u4ef6\u7684\u4f4d\u7f6e\uff08position\uff09\u3002\u6240\u6709\u548c\u4e3b\u670d\u52a1\u5668\u540c\u6b65\u7684\u5fc5\u8981\u4fe1\u606f\u90fd\u76f4\u63a5\u4ece\u590d\u5236\u6570\u636e\u6d41\u4e2d\u83b7\u53d6\u3002GTID\u4ee3\u66ff\u4e86\u4e4b\u524d\u7528\u4e8e\u51b3\u5b9a\u4e3b\u4ece\u670d\u52a1\u5668\u4ece\u54ea\u91cc\u5f00\u59cb\uff0c\u54ea\u91cc\u7ed3\u675f\u6216\u54ea\u91cc\u6062\u590d\u7684\u6587\u4ef6\u504f\u79fb\u91cf\u5bf9\u3002\u56e0\u6b64\uff0c\u5728<code>CHANGE MASTER TO<\/code> \u8bed\u53e5\u4e2d\u6ca1\u6709MASTER_LOG_FILE\u6216MASTER_LOG_POST\u9009\u9879\uff1b\u53d6\u800c\u4ee3\u4e4b\u7684\u662f\u5f00\u542f<code>MASTER_AUTO_POSITIONT<\/code>\u9009\u9879\u3002<\/p>\n<p>GTID\u7684\u4ea7\u751f\u548c\u751f\u547d\u5468\u671f\u7531\u4ee5\u4e0b\u51e0\u6b65\u7ec4\u6210\uff1a<\/p>\n<ol>\n<li>\u5728\u4e3b\u670d\u52a1\u5668\u4e0a\u63d0\u4ea4\u5e76\u6267\u884c\u4e00\u4e2a\u4e8b\u52a1\uff1a\u4e8b\u52a1\u4f1a\u5206\u914d\u4e00\u4e2aGTID\uff08\u670d\u52a1\u5668UUID\uff1a\u4e8b\u52a1\u5e8f\u5217\u53f7\uff09\uff1bGTID\u88ab\u5199\u5165\u5230\u4e3b\u670d\u52a1\u5668\u7684BINARY LOG\u4e2d\uff08\u5728\u4e8b\u52a1\u4e4b\u524d\u7acb\u5373\u5199\u5165\u65e5\u5fd7 (immediately preceding the transaction itself in the log)\uff09\u3002<\/li>\n<li>\u4e4b\u540ebinary log\u6570\u636e\u88ab\u4f20\u9001\u5230\u4ece\u670d\u52a1\u5668\u4e0a\u5e76\u88ab\u5b58\u50a8\u5230\u4ece\u670d\u52a1\u5668\u7684relay log\u4e2d\uff08\u5efa\u7acb\u8fde\u63a5\u673a\u5236\u8fc7\u7a0bsee <a class=\"xref\" title=\"16.2\u00a0Replication Implementation\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-implementation.html\">Section\u00a016.2, \u201cReplication Implementation\u201d<\/a>\uff09\uff0c\u4ece\u670d\u52a1\u5668\u8bfb\u53d6GTID\u5e76\u4ee5\u8be5\u503c\u8bbe\u7f6e\u7cfb\u7edf\u53d8\u91cf <a class=\"link\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-options-gtids.html#sysvar_gtid_next\"><code class=\"literal\">gtid_next<\/code><\/a>\u7684\u503c\u3002\u8fd9\u6b65\u544a\u77e5\u4ece\u670d\u52a1\u5668\u4e0b\u4e00\u4e2a\u4e8b\u52a1\u5fc5\u987b\u4f7f\u7528\u8fd9\u4e2aGTID\u8fdb\u884c\u8bb0\u5f55\u3002<strong>\u6ce8\u610f\uff1agtid_next\u662f\u5728session\u4e0a\u4e0b\u6587\u4e2d\u8bbe\u7f6e\u7684\u3002<\/strong><\/li>\n<li>\u4ece\u670d\u52a1\u5668\u9a8c\u8bc1\u8be5GTID\u5e76\u6ca1\u6709\u5728\u5b83\u81ea\u5df1\u7684binary log\u4e2d\u88ab\u4f7f\u7528\u8fc7\u3002\u5982\u679c\u8be5GTID\u6ca1\u6709\u4f7f\u7528\u8fc7\uff0c\u4ece\u670d\u52a1\u5668\u4f1a\u5199GTID\u5e76\u5e94\u7528\u4e8b\u52a1\uff0c\u7136\u540e\u628a\u4e8b\u52a1\u5199\u5230\u5b83\u7684binary log\u4e2d\u3002\u901a\u8fc7\u5148\u8bfb\u53d6\u68c0\u67e5\u4e8b\u52a1\u7684GTID\u6709\u6ca1\u6709\u4f7f\u7528\u8fc7\uff0c\u53ef\u4ee5\u786e\u5b9a\u5728\u591a\u5ba2\u6237\u7aef\u65f6\u4e0d\u4f1a\u5e76\u53d1\u5e94\u7528\u76f8\u540c\u7684\u4e8b\u52a1\u591a\u6b21\u3002<\/li>\n<li>\u56e0\u4e3a <a class=\"link\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-options-gtids.html#sysvar_gtid_next\"><code class=\"literal\">gtid_next<\/code><\/a> \u975e\u7a7a\uff0c\u4ece\u670d\u52a1\u5668\u4e0d\u4f1a\u5c1d\u8bd5\u4e3a\u8fd9\u4e2a\u4e8b\u52a1\u4ea7\u751f\u4e00\u4e2a\u81ea\u5df1\u7684GTID\uff0c\u800c\u662f\u4f7f\u7528gtid_next\u4e2d\u7684\u503c\uff0cGTID\u7684\u503c\u662f\u4ece\u4e3b\u670d\u52a1\u5668\u4e0a\u83b7\u53d6\u7684\u2014\u2014\u5728\u4e8b\u52a1\u6301\u4e45\u5316\u5230binlog\u4e4b\u524d\u83b7\u53d6\u5230\uff08immediately preceding the transaction in its binary log\uff09\u3002<\/li>\n<\/ol>\n<h4>mysql.gtid_executed\u8868<\/h4>\n<p>\u81ea\u4eceMYSQL 5.7.5\u5f00\u59cb\uff0cGTID\u88ab\u5b58\u50a8\u5728\u4e00\u4e2a\u540d\u4e3agtid_executed\u7684\u8868\u4e2d\uff0c\u5728mysql\u5e93\u4e2d\u3002\u8868\u4e2d\u7684\u6bcf\u4e00\u884c\u8bb0\u5f55\u4ee3\u8868\u4e00\u4e2aGTID\u6216GTID\u96c6\uff0c\u539f\u59cb\u670d\u52a1\u5668uuid\uff0c\u5f00\u59cb\u548c\u7ed3\u675f\u4e8b\u52a1ID\uff1b\u4e00\u884c\u8bb0\u5f55\u53ea\u6709\u4e00\u4e2aGTID\uff0c\u6700\u540e\u4e24\u4e2a\u503c\u662f\u4e00\u6837\u7684\u3002<\/p>\n<p>mysql.gtid_executed\u8868\u662f\u5728MYSQL\u670d\u52a1\u5b89\u88c5\u6216\u66f4\u65b0\u65f6\u521b\u5efa\u7684\u3002\uff08\u6ce8\u610f\u4e0d\u8981\u81ea\u5df1\u4fee\u6539\u8fd9\u4e2a\u8868\uff09<\/p>\n<p>\u53ea\u6709\u5f53<a class=\"link\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-options-gtids.html#sysvar_gtid_mode\"><code class=\"literal\">gtid_mode<\/code><\/a> \u662fON\u6216ON_PERMISSIVE\u65f6\uff0cGTID\u88ab\u5b58\u50a8\u5230mysql.gtid_executed\u4e2d\u3002GTID\u5b58\u50a8\u4e8e\u8be5\u8868\u548cbin-log\u662f\u5426\u5f00\u542f\u65e0\u5173\u3002\u4f46\u662f\uff0clog bin\u662f\u5426\u5f00\u542f\u4f1a\u5f71\u54cdGTID\u7684\u5b58\u50a8\u65b9\u5f0f\uff1a<\/p>\n<ul>\n<li>\u5982\u679cbinary log\u5173\u95ed\uff08log_bin\u662fOFF\uff09\uff0c\u670d\u52a1\u5668\u5b58\u50a8\u5c5e\u4e8e\u6bcf\u4e00\u4e2a\u4e8b\u52a1\u7684GTID\u3002\uff08 the server stores the GTID belonging to each transaction together with the transaction in the table. \uff09\u53e6\u5916\uff0c\u5f53binary log\u5173\u95ed\uff0c\u8fd9\u4e2a\u8868\u6839\u636e\u7528\u6237\u914d\u7f6e\u5468\u57fa\u7684\u538b\u7f29\u3002see <a class=\"xref\" title=\"mysql.gtid_executed Table Compression\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-gtids-concepts.html#replication-gtids-gtid-executed-table-compression\">mysql.gtid_executed Table Compression<\/a>, for more information.<\/li>\n<li>\u5982\u679cbinary log\u5f00\u542f\uff08log_bin\u662fON\uff09\uff0c\u90a3\u4e48\u5728mysql.gtid_executed\u8868\u4e2d\u989d\u5916\u5b58\u50a8GTID\u3002\u65e0\u8bbabin log\u662f\u5426\u5728\u8f6e\u8be2\uff08is routated\uff09\u6216\u670d\u52a1\u5668\u5173\u95ed\uff08server shut down\uff09\uff0c\u670d\u52a1\u5668\u4f1a\u4e3a\u6240\u6709\u5df2\u7ecf\u5199\u5165\u5230\u65e7binary log\u4e2d\u7684\u65e5\u5fd7\u91cd\u65b0\u5199\u5230\u5e26GTID\u7684\u65b0binary log\u4e2d\u3002In the event of the server stopping unexpectedly, the set of GTIDs from the previous binary log is not saved in the <code class=\"literal\">mysql.gtid_executed<\/code> table. In this case, these GTIDs are added to the table and to the set of GTIDs in the <a class=\"link\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-options-gtids.html#sysvar_gtid_executed\"><code class=\"literal\">gtid_executed<\/code><\/a> system variable during recovery. \u5f53binary log\u5f00\u542f\u65f6mysql.gtid_executed\u8868\u4e0d\u63d0\u4f9b\u5b8c\u6574\u7684GTID\u8bb0\u5f55\u3002\u8fd9\u4e9b\u4fe1\u606f\u7531\u5168\u5c40\u7cfb\u7edf\u53d8\u91cf <a class=\"link\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-options-gtids.html#sysvar_gtid_executed\"><code class=\"literal\">gtid_executed<\/code><\/a> \u63d0\u4f9b\u3002<\/li>\n<\/ul>\n<p>mysql.gtid_executed\u8868\u53ef\u4ee5\u88ab <a class=\"link\" title=\"13.4.1.2\u00a0RESET MASTER Syntax\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/reset-master.html\"><code class=\"literal\">RESET MASTER<\/code><\/a> \u91cd\u7f6e\u3002<\/p>\n<h4>\u00a0mysql.gtid_executed\u8868\u538b\u7f29<\/h4>\n<p>\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\uff0cmysql.gtid_executed\u8868\u4f1a\u88ab\u5f88\u591a\u65e0\u6548\u7684GTID\u5806\u6ee1\uff0c\u5b83\u4eec\u90fd\u6e90\u81ea\u540c\u4e00\u4e2a\u670d\u52a1\u5668\uff0c\u5e76\u4e14\u5b83\u4eec\u7684\u4e8b\u52a1ID\u4ea7\u751f\u4e00\u4e2a\u5e8f\u5217\uff0c\u7c7b\u4f3c\u4e8e\u4e0b\u9762\u663e\u793a\u7684\uff1a<\/p>\n<pre class=\"programlisting line-numbers language-sql\"><code class=\" language-sql\"><span class=\"token prompt\">mysql&gt;<\/span> <span class=\"token keyword\">SELECT<\/span> <span class=\"token operator\">*<\/span> <span class=\"token keyword\">FROM<\/span> mysql<span class=\"token punctuation\">.<\/span>gtid_executed<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token output\"><span class=\"token punctuation\">+<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">+<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">+<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">+<\/span><\/span>\r\n<span class=\"token output\"><span class=\"token punctuation\">|<\/span> source_uuid                          <span class=\"token punctuation\">|<\/span> interval_start <span class=\"token punctuation\">|<\/span> interval_end <span class=\"token punctuation\">|<\/span><\/span>\r\n<span class=\"token output\"><span class=\"token punctuation\">|<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">+<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">+<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">|<\/span><\/span>\r\n<span class=\"token output\"><span class=\"token punctuation\">|<\/span> 3E11FA47<span class=\"token punctuation\">-<\/span>71CA<span class=\"token punctuation\">-<\/span>11E1<span class=\"token punctuation\">-<\/span>9E33<span class=\"token punctuation\">-<\/span>C80AA9429562 <span class=\"token punctuation\">|<\/span> 37             <span class=\"token punctuation\">|<\/span> 37           <span class=\"token punctuation\">|<\/span><\/span>\r\n<span class=\"token output\"><span class=\"token punctuation\">|<\/span> 3E11FA47<span class=\"token punctuation\">-<\/span>71CA<span class=\"token punctuation\">-<\/span>11E1<span class=\"token punctuation\">-<\/span>9E33<span class=\"token punctuation\">-<\/span>C80AA9429562 <span class=\"token punctuation\">|<\/span> 38             <span class=\"token punctuation\">|<\/span> 38           <span class=\"token punctuation\">|<\/span><\/span>\r\n<span class=\"token output\"><span class=\"token punctuation\">|<\/span> 3E11FA47<span class=\"token punctuation\">-<\/span>71CA<span class=\"token punctuation\">-<\/span>11E1<span class=\"token punctuation\">-<\/span>9E33<span class=\"token punctuation\">-<\/span>C80AA9429562 <span class=\"token punctuation\">|<\/span> 39             <span class=\"token punctuation\">|<\/span> 39           <span class=\"token punctuation\">|<\/span><\/span>\r\n<span class=\"token output\"><span class=\"token punctuation\">|<\/span> 3E11FA47<span class=\"token punctuation\">-<\/span>71CA<span class=\"token punctuation\">-<\/span>11E1<span class=\"token punctuation\">-<\/span>9E33<span class=\"token punctuation\">-<\/span>C80AA9429562 <span class=\"token punctuation\">|<\/span> 40             <span class=\"token punctuation\">|<\/span> 40           <span class=\"token punctuation\">|<\/span><\/span>\r\n<span class=\"token output\"><span class=\"token punctuation\">|<\/span> 3E11FA47<span class=\"token punctuation\">-<\/span>71CA<span class=\"token punctuation\">-<\/span>11E1<span class=\"token punctuation\">-<\/span>9E33<span class=\"token punctuation\">-<\/span>C80AA9429562 <span class=\"token punctuation\">|<\/span> 41             <span class=\"token punctuation\">|<\/span> 41           <span class=\"token punctuation\">|<\/span><\/span>\r\n<span class=\"token output\"><span class=\"token punctuation\">|<\/span> 3E11FA47<span class=\"token punctuation\">-<\/span>71CA<span class=\"token punctuation\">-<\/span>11E1<span class=\"token punctuation\">-<\/span>9E33<span class=\"token punctuation\">-<\/span>C80AA9429562 <span class=\"token punctuation\">|<\/span> 42             <span class=\"token punctuation\">|<\/span> 42           <span class=\"token punctuation\">|<\/span><\/span>\r\n<span class=\"token output\"><span class=\"token punctuation\">|<\/span> 3E11FA47<span class=\"token punctuation\">-<\/span>71CA<span class=\"token punctuation\">-<\/span>11E1<span class=\"token punctuation\">-<\/span>9E33<span class=\"token punctuation\">-<\/span>C80AA9429562 <span class=\"token punctuation\">|<\/span> 43             <span class=\"token punctuation\">|<\/span> 43           <span class=\"token punctuation\">|<\/span><\/span>\r\n<span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><\/code><\/pre>\n<p>\u8003\u8651\u5230\u7a7a\u95f4\u95ee\u9898\uff0c\u5982\u679c\u8868\u88ab\u5468\u671f\u6027\u7684\u538b\u7f29\uff0c\u5c06\u8fd9\u4e9b\u884c\u66ff\u6362\u6210\u5355\u72ec\u4e00\u4e2a\u8bb0\u5f55\u53ef\u4ee5\u8282\u7701\u5f88\u591a\u7684\u7a7a\u95f4\uff0c\u5982\uff1a<\/p>\n<pre class=\"programlisting line-numbers language-sql\"><code class=\" language-sql\"><span class=\"token output\"><span class=\"token punctuation\">+<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">+<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">+<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">+<\/span><\/span>\r\n<span class=\"token output\"><span class=\"token punctuation\">|<\/span> source_uuid                          <span class=\"token punctuation\">|<\/span> interval_start <span class=\"token punctuation\">|<\/span> interval_end <span class=\"token punctuation\">|<\/span><\/span>\r\n<span class=\"token output\"><span class=\"token punctuation\">|<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">+<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">+<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">-<\/span><span class=\"token punctuation\">|<\/span><\/span>\r\n<span class=\"token output\"><span class=\"token punctuation\">|<\/span> 3E11FA47<span class=\"token punctuation\">-<\/span>71CA<span class=\"token punctuation\">-<\/span>11E1<span class=\"token punctuation\">-<\/span>9E33<span class=\"token punctuation\">-<\/span>C80AA9429562 <span class=\"token punctuation\">|<\/span> 37             <span class=\"token punctuation\">|<\/span> 43           <span class=\"token punctuation\">|<\/span><\/span>\r\n<span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><\/code><\/pre>\n<p>\u5f53GTID\u5f00\u542f\u65f6\uff0c\u670d\u52a1\u5668\u4f1a\u5728mysql.gtid_executed\u8868\u4e0a\u5468\u671f\u7684\u6267\u884c\u8fd9\u6837\u7684\u538b\u7f29\u3002\u4f60\u80fd\u63a7\u5236\u5141\u8bb8\u6267\u884c\u538b\u7f29\u524d\u6709\u591a\u5c11\u4e2a\u4e8b\u52a1\uff0c\u901a\u8fc7\u8bbe\u7f6e <a class=\"link\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-options-gtids.html#sysvar_executed_gtids_compression_period\"><code class=\"literal\">executed_gtids_compression_period<\/code><\/a>\u00a0 \u7cfb\u7edf\u53d8\u91cf\u63a7\u5236\u538b\u7f29\u9891\u7387\u3002\u8fd9\u4e2a\u53d8\u91cf\u7684\u9ed8\u8ba4\u503c\u662f1000\uff1b\u8fd9\u610f\u5473\u7740\uff0c\u5728\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u8868\u6267\u884c1000\u4e2a\u4e8b\u52a1\u624d\u4f1a\u6267\u884c\u538b\u7f29\u3002\u8bbe\u7f6eexecuted_gtid_compression_period\u4e3a0\uff0c\u4e0d\u6267\u884c\u538b\u7f29\uff1b\u5982\u679c\u8fd9\u4e48\u505a\u7684\u8bddgtid_executed\u8868\u53ef\u80fd\u4f1a\u53d8\u7684\u975e\u5e38\u7684\u5927\u3002<\/p>\n<p><strong>\u6ce8\u610f\uff1a\u5f53binary log\u5f00\u542f\u65f6\uff0cexecuted_gtids_compression_period\u662f\u4e0d\u4f7f\u7528\u7684\uff0c\u5e76\u4e14mysql.gtid_executed\u8868\u7684\u538b\u7f29\u5728\u6bcf\u6b21binary log \u8f6e\u8be2\u65f6\u6267\u884c\u3002<\/strong><\/p>\n<p>mysql.gtid_executed\u8868\u538b\u7f29\u7531\u4e00\u4e2a\u524d\u53f0\u4e13\u5c5e\u8fdb\u7a0b\u6267\u884c\u2014\u2014<code>thread\/sql\/compress_gtid_table<\/code>\u3002\u8fd9\u4e2a\u8fdb\u7a0b\u4e0d\u4f1a\u51fa\u73b0\u5728SHOW PROCESSLIST\uff0c\u4f46\u662f\u53ef\u4ee5\u5728<a class=\"link\" title=\"25.11.16.3\u00a0The threads Table\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/threads-table.html\"><code class=\"literal\">threads<\/code><\/a>\u8868\u4e2d\u67e5\u770b\u5230\uff0c\u5982\uff1a<\/p>\n<pre class=\"programlisting line-numbers language-sql\"><code class=\" language-sql\"><span class=\"token prompt\">mysql&gt;<\/span> <span class=\"token keyword\">SELECT<\/span> <span class=\"token operator\">*<\/span> <span class=\"token keyword\">FROM<\/span> performance_schema<span class=\"token punctuation\">.<\/span>threads <span class=\"token keyword\">WHERE<\/span> <span class=\"token keyword\">NAME<\/span> <span class=\"token operator\">LIKE<\/span> <span class=\"token string\">'%gtid%'<\/span>\\G\r\n<span class=\"token output\"><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span> 1. row <span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span><span class=\"token punctuation\">*<\/span>\r\n          THREAD_ID<span class=\"token punctuation\">:<\/span> 26\r\n               NAME<span class=\"token punctuation\">:<\/span> thread\/sql\/compress_gtid_table\r\n               TYPE<span class=\"token punctuation\">:<\/span> FOREGROUND\r\n     PROCESSLIST_ID<span class=\"token punctuation\">:<\/span> 1\r\n   PROCESSLIST_USER<span class=\"token punctuation\">:<\/span> NULL\r\n   PROCESSLIST_HOST<span class=\"token punctuation\">:<\/span> NULL\r\n     PROCESSLIST_DB<span class=\"token punctuation\">:<\/span> NULL\r\nPROCESSLIST_COMMAND<span class=\"token punctuation\">:<\/span> Daemon\r\n   PROCESSLIST_TIME<span class=\"token punctuation\">:<\/span> 1509\r\n  PROCESSLIST_STATE<span class=\"token punctuation\">:<\/span> Suspending\r\n   PROCESSLIST_INFO<span class=\"token punctuation\">:<\/span> NULL\r\n   PARENT_THREAD_ID<span class=\"token punctuation\">:<\/span> 1\r\n               ROLE<span class=\"token punctuation\">:<\/span> NULL\r\n       INSTRUMENTED<span class=\"token punctuation\">:<\/span> YES\r\n            HISTORY<span class=\"token punctuation\">:<\/span> YES\r\n    CONNECTION_TYPE<span class=\"token punctuation\">:<\/span> NULL\r\n       THREAD_OS_ID<span class=\"token punctuation\">:<\/span> 18677<\/span><\/code><\/pre>\n<p>thread\/sql\/compress_gtid_table\u7ebf\u7a0b\u901a\u5e38\u662f\u4f11\u7720\u72b6\u6001\uff0c\u76f4\u5230executed_gtids_compression_period\u4e8b\u52a1\u6267\u884c\u540e\uff0c\u5524\u9192\u8be5\u8fdb\u7a0b\u5bf9mysql.gtid_executed\u8868\u8fdb\u884c\u538b\u7f29\u3002\u6267\u884c\u538b\u7f29\u540e\u518d\u6b21\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u3002executed_gtids_compression_period\u8bbe\u7f6e\u4e3a0\u8868\u793a\u8be5\u7ebf\u7a0b\u4e00\u76f4\u4f11\u7720\uff0c\u4e0d\u88ab\u5524\u9192\u3002<\/p>\n<p>&nbsp;<\/p>\n<h3>\u901a\u5e38\u5982\u4f55\u8bbe\u7f6e\u548c\u542f\u52a8\u4e00\u4e2a\u57fa\u4e8eGTID\u7684\u590d\u5236<\/h3>\n<p>(see <a class=\"xref\" title=\"16.1.3.2\u00a0Setting Up Replication Using GTIDs\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-gtids-howto.html\">Section\u00a016.1.3.2, \u201cSetting Up Replication Using GTIDs\u201d<\/a>)<\/p>\n<h4>\u4f7f\u7528GTID\u8bbe\u7f6e\u590d\u5236<\/h4>\n<p>\u8bbe\u7f6e\u4e00\u4e2aGTID\u590d\u5236\u6280\u672f\u7684\u5173\u952e\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u5982\u679c\u590d\u5236\u5df2\u7ecf\u5f00\u59cb\uff0c\u540c\u6b65\u7684\uff08\u4e3b\u4ece\uff09\u670d\u52a1\u5668\u662f\u53ea\u8bfb\u7684\u3002<\/li>\n<li>\u505c\u6b62\u4e3b\u4ece\u670d\u52a1\u5668<\/li>\n<li>\u4f7f\u7528GTID\u91cd\u65b0\u542f\u52a8\u670d\u52a1\u5668\u5e76\u7ea0\u6b63\u914d\u7f6e\u9009\u9879\u3002<\/li>\n<li>\u901a\u77e5\u4ece\u670d\u52a1\u5668\u4ee5\u4e3b\u670d\u52a1\u5668\u4e3a\u590d\u5236\u6570\u636e\u6e90\u5e76\u4f7f\u7528auto-positioning\u3002<\/li>\n<li>\u505a\u4e00\u4e2a\u65b0\u7684\u5907\u4efd\u3002\u56e0\u4e3a\u4e4b\u524d\u7684\u5907\u4efd\u4e0d\u5305\u542bGTID\uff0c\u4e0d\u80fd\u7528\u4e8e\u65b0\u914d\u7f6e\uff0c\u6240\u4ee5\u8981\u505a\u4e00\u4e2a\u65b0\u7684\u5907\u4efd\u3002<\/li>\n<li>start the slave\uff0c\u518d\u6b21\u5141\u8bb8read\u6a21\u5f0f\uff0c\u4f7f\u5b83\u4eec\u80fd\u63a5\u53d7\u66f4\u65b0\u3002<\/li>\n<\/ol>\n<p>\u4e0b\u9762\u7684\u4f8b\u5b50\u4e24\u4e2a\u670d\u52a1\u5668\u5df2\u7ecf\u8fd0\u884c\u4e8e\u4e3b\u3001\u4ece\u670d\u52a1\u5668\uff0c\u4f7f\u7528\u7684\u662f\u57fa\u4e8e\u4e8c\u8fdb\u5236\u65e5\u5fd7\u4f4d\u7f6e\u7684\u590d\u5236\u534f\u8bae\u3002\u5982\u679c\u8981\u4ee5\u4e00\u4e2a\u65b0\u670d\u52a1\u5668\u5f00\u59cb\uff0c\u5148\u6dfb\u52a0\u4e00\u4e2a\u201c\u590d\u5236\u7528\u6237\u201d\u7136\u540e\u8bbe\u7f6e server_id\u53d8\u91cf\u3002<\/p>\n<p>\u4e0b\u9762\u7684\u6b65\u9aa4\u9700\u8981SUPER\u6743\u9650\u3002mysqladmin\u7684shutdown\u9700\u8981SUPER\u6743\u9650\u6216SHUTDOWN\u6743\u9650\u3002<\/p>\n<p><strong>Step 1:\u540c\u6b65\u670d\u52a1\u5668<\/strong>\u3002\u8fd9\u4e00\u6b65\u9700\u8981\u670d\u52a1\u5668\u662f\u540c\u6b65\u72b6\u6001\uff0c\u4f46\u6ca1\u6709\u4f7f\u7528GTID\u3002\u5bf9\u4e8e\u65b0\u670d\u52a1\u5668\u76f4\u63a5\u5230Step 3\u3002\u8bbe\u7f6e\u7cfb\u7edf\u53d8\u91cf <a class=\"link\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/server-system-variables.html#sysvar_read_only\"><code class=\"literal\">read_only<\/code><\/a> \u4e3aON\uff0c\u4f7f\u670d\u52a1\u5668\u53d8\u4e3a\u53ea\u8bfb\uff1a<\/p>\n<pre class=\"programlisting line-numbers one-line language-sql\"><code class=\" language-sql\"><span class=\"token prompt\">mysql&gt;<\/span> <span class=\"token keyword\">SET<\/span> <span class=\"token variable\">@@global.read_only<\/span> <span class=\"token operator\">=<\/span> <span class=\"token keyword\">ON<\/span><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<p>\u7b49\u5f85\u6240\u6709\u7684\u4e8b\u52a1\u63d0\u4ea4\u6216\u56de\u6eda\u3002\u7136\u540e\u4ece\u670d\u52a1\u5668\u548c\u4e3b\u670d\u52a1\u5668\u5b8c\u5168\u540c\u90e8\u3002<em><strong>\u8fd9\u4e00\u6b65\u6781\u5176\u91cd\u8981\uff0c\u4f60\u8981\u786e\u5b9a\u4ece\u670d\u52a1\u5668\u5df2\u7ecf\u5904\u7406\u5b8c\u6240\u6709\u7684\u66f4\u65b0\u64cd\u4f5c<\/strong><\/em>\u3002\uff08\u56e0\u4e3a\u5728\u5f00\u542fGTID\u4e4b\u524d\u7684\u4e8b\u52a1\u662f\u4e0d\u5305\u542bGTID\u7684\uff0c\u5982\u679c\u5f00\u542f\u4e86GTID\uff0c\u4f46\u8fd8\u5b58\u5728\u4e0d\u5305\u542bGTID\u7684\u4e8b\u52a1\uff0c\u90a3\u4e48\u670d\u52a1\u5668\u65e0\u6cd5\u8bc6\u522b\u3002\uff09<\/p>\n<p><strong>Step 2:\u505c\u6b62\u4e3b\u4ece\u670d\u52a1\u5668<\/strong>\u3002\u4f7f\u7528<code>mysqladmin<\/code>\u505c\u6b62\u4e3b\u4ece\u670d\u52a1\u5668\u3002<\/p>\n<pre class=\"programlisting line-numbers one-line language-terminal\"><code class=\" language-terminal\"><span class=\"token prompt\">shell&gt;<\/span><span class=\"token command\"> mysqladmin<\/span> <span class=\"token property\">-u<em class=\"replaceable\">username<\/em><\/span> <span class=\"token property\">-p<\/span> shutdown<\/code><\/pre>\n<p><strong>Step 3:\u4ee5GTID\u5f00\u542f\u4e3b\u4ece\u670d\u52a1\u5668<\/strong>\u3002\u5f00\u542f\u57fa\u4e8eGTID\u7684\u590d\u5236\uff0c\u901a\u8fc7\u8bbe\u7f6e\u53d8\u91cf <a class=\"link\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-options-gtids.html#sysvar_gtid_mode\"><code class=\"literal\">gtid_mode<\/code><\/a> \u4e3aON\uff0c\u542f\u52a8\u4e3b\u4ece\u670d\u52a1\u5668\u3002\u5e76\u5f00\u542f <a class=\"link\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-options-gtids.html#sysvar_enforce_gtid_consistency\"><code class=\"literal\">enforce_gtid_consistency<\/code><\/a>\u00a0 \u53d8\u91cf\uff0c\u786e\u5b9a\u53ea\u6709\u57fa\u4e8eGTID\u7684\u8bed\u53e5\u624d\u662f\u53ef\u4ee5\u88ab\u5b89\u5168\u8bb0\u5f55\u7684\u3002\u53e6\u5916\uff0c\u5728\u914d\u7f6e\u4ece\u670d\u52a1\u5668\u4e4b\u524d\u5e94\u8be5\u4ee5<a class=\"link\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/replication-options-slave.html#option_mysqld_skip-slave-start\"><code class=\"option\">--skip-slave-start<\/code><\/a> \u9009\u9879\u542f\u52a8\u4ece\u670d\u52a1\u5668\u3002<\/p>\n<p>\u5f00\u542fbinary log\u5e76\u975e\u5f3a\u5236\u3002\u8fd9\u610f\u5473\u7740\u4f60\u7684<strong>\u4ece\u670d\u52a1\u5668<\/strong>\u53ef\u4ee5\u4f7f\u7528GTID\uff0c\u4f46\u6ca1\u6709binary log\u3002\u4e3a\u4e86\u590d\u5236<strong>\u4e3b\u670d\u52a1\u5668\u5fc5\u987b<\/strong>\u4e00\u76f4\u5f00\u542fbinary log\u3002mysql\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684MYSQLD\u90e8\u5206\u8981\u6dfb\u52a0\uff1a<\/p>\n<pre class=\"programlisting line-numbers language-ini\"><code class=\" language-ini\"><span class=\"token constant\">gtid_mode<\/span><span class=\"token attr-value\"><span class=\"token punctuation\">=<\/span>ON<\/span>\r\n<span class=\"token constant\">enforce-gtid-consistency<\/span><span class=\"token attr-value\"><span class=\"token punctuation\">=<\/span>true<\/span><\/code><\/pre>\n<p><strong>Step 4:\u914d\u7f6e\u4ece\u670d\u52a1\u5668\u4f7f\u7528\u57fa\u4e8eGTID\u7684auto-positioning<\/strong>\u3002\u544a\u77e5\u4ece\u670d\u52a1\u5668\u4ee5\u57fa\u4e8eGTID\u4e8b\u52a1\u7684\u4e3b\u670d\u52a1\u5668\u4e3a\u6570\u636e\u6e90\uff0c\u5e76\u4f7f\u7528\u57fa\u4e8eGTID\u7684auto-positioning\u800c\u4e0d\u662f\u57fa\u4e8e\u6587\u4ef6\u4f4d\u7f6e\u3002\u5728\u4ece\u670d\u52a1\u5668\u4e0a\u4f7f\u7528 <a class=\"link\" title=\"13.4.2.1\u00a0CHANGE MASTER TO Syntax\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/change-master-to.html\"><code class=\"literal\">CHANGE MASTER TO<\/code><\/a> \u8bed\u53e5\uff0c\u5305\u542bMASTER_AUTO_POSITION\u9009\u9879\u5728\u8bed\u53e5\u4e2d\uff0c\u544a\u77e5\u4ece\u670d\u52a1\u5668\u4e3b\u670d\u52a1\u5668\u7684\u4e8b\u52a1\u4ee5GTID\u6807\u8bc6\u3002<\/p>\n<p>\u586b\u5199\u76f8\u5e94\u7684\u4e3b\u673a\u5730\u5740\u3001\u7aef\u53e3\u3001\u7528\u6237\u540d\u3001\u5bc6\u7801\uff0c\u5982\u679c\u5df2\u7ecf\u6309step 1\u8bbe\u7f6e\u597d\u5e76\u6ca1\u6709\u4ec0\u4e48\u9700\u8981\u6539\u53d8\u7684\u5730\u65b9\uff0c\u4e00\u4e9b\u9009\u9879\u53ef\u4ee5\u5ffd\u7565\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre class=\"programlisting line-numbers language-sql\"><code class=\" language-sql\"><span class=\"token prompt\">mysql&gt;<\/span> <span class=\"token keyword\">CHANGE<\/span> <span class=\"token keyword\">MASTER<\/span> <span class=\"token keyword\">TO<\/span>\r\n     <span class=\"token operator\">&gt;<\/span>     <span class=\"token keyword\">MASTER_HOST<\/span> <span class=\"token operator\">=<\/span> <span class=\"token keyword\"><em class=\"replaceable\">host<\/em><\/span><span class=\"token punctuation\">,<\/span>\r\n     <span class=\"token operator\">&gt;<\/span>     <span class=\"token keyword\">MASTER_PORT<\/span> <span class=\"token operator\">=<\/span> <span class=\"token keyword\"><em class=\"replaceable\">port<\/em><\/span><span class=\"token punctuation\">,<\/span>\r\n     <span class=\"token operator\">&gt;<\/span>     <span class=\"token keyword\">MASTER_USER<\/span> <span class=\"token operator\">=<\/span> <span class=\"token keyword\"><em class=\"replaceable\">user<\/em><\/span><span class=\"token punctuation\">,<\/span>\r\n     <span class=\"token operator\">&gt;<\/span>     <span class=\"token keyword\">MASTER_PASSWORD<\/span> <span class=\"token operator\">=<\/span> <span class=\"token keyword\"><em class=\"replaceable\">password<\/em><\/span><span class=\"token punctuation\">,<\/span>\r\n     <span class=\"token operator\">&gt;<\/span>     <span class=\"token keyword\">MASTER_AUTO_POSITION<\/span> <span class=\"token operator\">=<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<p>\u56e0\u4e3a\u4f7f\u7528\u4e86MASTER_AUTO_POSITION=1\uff0c\u6240\u4ee5\u5373\u4e0d\u9700\u8981\u4f7f\u7528 <code class=\"literal\">MASTER_LOG_FILE<\/code> \u9009\u9879\uff0c\u4e5f\u4e0d\u9700\u8981<code class=\"literal\"> MASTER_LOG_POS \u9009\u9879\u3002\u5982\u679c\u4e00\u8d77\u4f7f\u7528\u4e86\u7684\u8bdd\u4f1a <a class=\"link\" title=\"13.4.2.1\u00a0CHANGE MASTER TO Syntax\" href=\"https:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/change-master-to.html\">CHANGE MASTER<br \/>\nTO<\/a> \u8bed\u53e5\u4f1a\u6267\u884c\u5931\u8d25\u3002<\/code><\/p>\n<p><strong>Step 5\uff1a\u5236\u505a\u4e00\u4e2a\u65b0\u5907\u4efd<\/strong>\u3002\u5728\u5f00\u542fGTID\u4e4b\u524d\u7684\u5907\u4efd\u5df2\u7ecf\u4e0d\u80fd\u4f7f\u7528\u4e86\uff0c\u56e0\u4e3a\u5176\u4e2d\u4e0d\u5305\u542bGTID\u4fe1\u606f\u3002<\/p>\n<p><strong>Setp 6\uff1a\u542f\u52a8\u4ece\u670d\u52a1\u5668\u5e76\u5f00\u542f\u8bfb\u6a21\u5f0f:<\/strong><\/p>\n<pre class=\"programlisting line-numbers one-line language-sql\"><code class=\" language-sql\"><span class=\"token prompt\">mysql&gt;<\/span> <span class=\"token keyword\">START<\/span> <span class=\"token keyword\">SLAVE<\/span><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<p>\u5982\u679c\u5728setp1\u4e2d\u914d\u7f6e\u4e86read-only\uff0c\u90a3\u4e48\u8fd9\u65f6\u5fc5\u987b\u8981\u53d6\u6d88\uff0c\u4e3a\u4e86\u670d\u52a1\u5668\u53ef\u4ee5\u63a5\u53d7\u66f4\u65b0\uff1a<\/p>\n<pre class=\"programlisting line-numbers one-line language-sql\"><code class=\" language-sql\"><span class=\"token prompt\">mysql&gt;<\/span> <span class=\"token keyword\">SET<\/span> <span class=\"token variable\">@@global.read_only<\/span> <span class=\"token operator\">=<\/span> OFF<span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<p>\u8fd9\u65f6\u57fa\u4e8eGTID\u7684\u590d\u5236\u5c31\u5b8c\u6210\u4e86\uff0c\u53ef\u4ee5\u6062\u590d\u4e3b\u670d\u52a1\u5668\u4e4b\u524d\u7684\u6fc0\u6d3b\u72b6\u6001\u4e86\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Chapter 16 Replication \u4e00\u3001\u4ecb\u7ecd \u4e3b\u4ece\u590d\u5236\u5141\u8bb8\u6570\u636e\u4ece\u4e00\u4e2amysql\u6570\u636e\u5e93\u670d\u52a1\u5668\uff08master\uff09\u590d\u5236\u5230\u53e6\u4e00\u4e2a\u6216\u591a\u4e2amysql\u670d\u52a1\u5668\uff08slav&#8230;<\/p>\n<p class=\"read-more\"><a class=\"btn btn-default\" href=\"https:\/\/www.5x44.cn\/?p=963\"> Read More<span class=\"screen-reader-text\">  Read More<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37],"tags":[],"class_list":["post-963","post","type-post","status-publish","format-standard","hentry","category-mysql"],"_links":{"self":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts\/963","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=963"}],"version-history":[{"count":34,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts\/963\/revisions"}],"predecessor-version":[{"id":1126,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=\/wp\/v2\/posts\/963\/revisions\/1126"}],"wp:attachment":[{"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=963"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=963"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.5x44.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=963"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}