redo log\u3001bin log\u3001undo log<\/p>\n\n\n\n
\u5148\u8bf4\u4e00\u4e0b\uff0credo log\u548cundo log\u662finnodb\u5f15\u64ce\u7ea7\u522b\u7684\u4e1c\u897f\uff0cbinlog\u662fmysql\u7ea7\u522b\u7684<\/p>\n\n\n\n
redo log \u4fdd\u8bc1\u4e86\u6301\u4e45\u6027<\/p>\n\n\n\n
undo log\u4fdd\u8bc1\u4e86\u539f\u5b50\u6027<\/p>\n\n\n\n
binlog\u7528\u6765\u6062\u590d\u6570\u636e\u548c\u540c\u6b65\u6570\u636e<\/p>\n\n\n\n
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redo log\u662f\u5728\u6570\u636e\u5199\u5165\u78c1\u76d8\u4e4b\u524d\uff0c\u5148\u5199\u7684\u4e00\u4efd\u6570\u636e\uff0c\u6709\u4e86redo log\uff0c\u5982\u679cmysql\u670d\u52a1\u6302\u4e86\uff0c\u53ef\u4ee5\u6062\u590d\u6570\u636e\u5230\u78c1\u76d8\u3002\u4e4b\u524d\u8bf4binlog\u8bb0\u5f55\u4e86\u4fee\u6539\u7684\u903b\u8f91\uff0cmysql\u7684\u57fa\u672c\u5b58\u50a8\u7ed3\u6784\u5f0f\u9875\uff0credo log\u53ef\u4ee5\u8bf4\u662f\u76f4\u63a5\u8bb0\u5f55\u7740xx\u9875\u505a\u4e86xx\u4fee\u6539\uff0c\u6240\u4ee5\u6587\u4ef6\u8f83\u5c0f\uff0c\u6062\u590d\u6570\u636e\u5f88\u8fc5\u901f\uff0credo log\u5199\u5165\u6570\u636e\u5230\u78c1\u76d8\u4e2d\u95f4\u4e5f\u6709buffer\uff0c\u662f\u987a\u5e8fio\u7684\u3002<\/p>\n\n\n\n
redo log\u4e0d\u4f1a\u8bb0\u5f55\u4fee\u6539\u7684\u5386\u53f2\uff0c\u53ea\u6709\u4fee\u6539\u7684\u7ed3\u679c\uff0c\u6240\u4ee5\u5982\u679c\u8981\u6062\u590d\u67d0\u4e2a\u6570\u636e\uff0c\u53ea\u80fd\u4f7f\u7528binlog\u3002<\/p>\n\n\n\n
mysql\u9700\u8981\u4fdd\u8bc1redo log\u548cbinlog\u7684\u7ed3\u679c\u4e00\u81f4\uff0c\u6240\u4ee5\u6709\u4e86\u4e00\u4e2a\u4e8c\u9636\u6bb5\u63d0\u4ea4\u3002redo log\u5199\u5b8c\u4e4b\u540e\uff0c\u8fdb\u5165prepare\u72b6\u6001\uff0cbinlog\u5199\u5b8c\u8fdb\u5165commit\u72b6\u6001\u3002\u6bcf\u4e2a\u4e8b\u52a1binlog\u7684\u672b\u5c3e\uff0c\u4f1a\u8bb0\u5f55\u4e00\u4e2aXID event\uff0c\u6807\u5fd7\u7740\u4e8b\u52a1\u662f\u5426\u63d0\u4ea4\u6210\u529f\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u6062\u590d\u8fc7\u7a0b\u4e2d\uff0cbinlog\u6700\u540e\u4e00\u4e2a XID event \u4e4b\u540e\u7684\u5185\u5bb9\u90fd\u5e94\u8be5\u88ab purge\u3002(\u597d\u50cf\u662fXA\u4e8b\u52a1\uff0c\u56de\u5934\u5728\u6574\u7406\u4e0b\u4e8b\u52a1\u7684\u5185\u5bb9)\uff0c\u540e\u6765\u786e\u8ba4\u4e86\uff0c\u8fd9\u91cc\u662f\u5185\u90e8XA\u4e8b\u52a1\u3002<\/p>\n\n\n\n
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mysql\u9ed8\u8ba4\u7684\u9694\u79bb\u7ea7\u522b\u662fread repeatable\u5982\u679c\u6709\u4e8b\u52a1\u5360\u7528\u67d0\u6761\u8bb0\u5f55\uff0c\u90a3\u4e48\u5176\u4ed6\u4e8b\u52a1\u8bfb\u53d6\u5230\u7684\u603b\u662f\u4e8b\u52a1\u5f00\u59cb\u65f6\u5019\u7684\u7248\u672c\u3002\u5bf9\u4e8eRC\u7684\u9694\u79bb\u7ea7\u522b\uff0c\u8bfb\u5230\u7684\u8bb0\u5f55\u603b\u662f\u6700\u65b0\u7684\u8bb0\u5f55\u3002<\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":" redo log\u3001bin log\u3001undo log \u5148\u8bf4\u4e00\u4e0b\uff0credo log\u548cundo log\u662finnodb […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[28,30,29],"_links":{"self":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/629"}],"collection":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=629"}],"version-history":[{"count":28,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/629\/revisions"}],"predecessor-version":[{"id":718,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/629\/revisions\/718"}],"wp:attachment":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=629"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=629"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=629"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}