{"id":1143,"date":"2018-09-12T03:31:50","date_gmt":"2018-09-12T03:31:50","guid":{"rendered":"http:\/\/www.ipcpu.com\/?p=1143"},"modified":"2018-12-12T03:41:18","modified_gmt":"2018-12-12T03:41:18","slug":"mongodb-replset","status":"publish","type":"post","link":"https:\/\/c.ipcpu.com\/2018\/09\/mongodb-replset\/","title":{"rendered":"MongoDB\u526f\u672c\u96c6ReplSet"},"content":{"rendered":"<p>MongoDB\u7684\u526f\u672c\u96c6ReplSet.md<\/p>\n<h2 id=\"\u4e00\u3001MongoDB\u7b80\u4ecb\">\u4e00\u3001MongoDB\u7b80\u4ecb<\/h2>\n<p>MongoDB\u662f\u4e00\u4e2a\u57fa\u4e8e\u6587\u6863\u7684\u5206\u5e03\u5f0f\u6587\u4ef6\u5b58\u50a8\u6570\u636e\u5e93\uff0c\u65e8\u5728\u63d0\u4f9b\u53ef\u6269\u5c55\u7684\u9ad8\u6027\u80fd\u6570\u636e\u5b58\u50a8\u89e3\u51b3\u65b9\u6848\u3002\u5176\u9ad8\u6027\u80fd\uff0c\u6613\u90e8\u7f72\uff0c\u6613\u4f7f\u7528\uff0c\u5b58\u50a8\u65b9\u4fbf\u7684\u7279\u70b9\u4f7f\u5176\u6df1\u53d7\u5e7f\u5927\u5f00\u53d1\u8005\u559c\u7231\u3002<\/p>\n<h2 id=\"\u4e8c\u3001MongoDB\u4e3b\u8981\u7279\u6027\">\u4e8c\u3001MongoDB\u4e3b\u8981\u7279\u6027<\/h2>\n<blockquote>\n<p>\u9ad8\u6027\u80fd\uff1a\u5355\u70b9\u538b\u6d4bTPS\uff1a10w+<\/p>\n<p>\u9ad8\u53ef\u7528\uff1a\u7531\u4e8e\u7f51\u7edc\u95ee\u9898\u3001\u673a\u5668\u91cd\u542f\u6216\u5176\u4ed6\u95ee\u9898\u5bfc\u81f4\u4e3b\u5e93\u4e0d\u53ef\u7528\u65f6\uff0c\u96c6\u7fa4\u4f1a\u89e6\u53d1\u9009\u4e3e\u4ee5\u9009\u51fa\u65b0\u7684\u4e3b\u8282\u70b9\u7ee7\u7eed\u63d0\u4f9b\u670d\u52a1<\/p>\n<p>\u4e00\u81f4\u6027\uff1a\u63d0\u4f9bfsync\uff0cjournal\u5237\u76d8\u7b56\u7565\u53ca{ w: <value>, j: true\/false , wtimeout: n }\u5199\u7b56\u7565\u4fdd\u8bc1\u6570\u636e\u4e00\u81f4\u6027\u3002\u5982\u679c\u96c6\u7fa4\u9009\u4e3e\u5bfc\u81f4\u6570\u636e\u4e0d\u4e00\u81f4\u65f6\uff0c\u5f85\u539f\u4e3b\u8282\u70b9\u6dfb\u52a0\u81f3\u96c6\u7fa4\u65f6\uff0c\u591a\u51fa\u6765\u7684\u6570\u636e\u5c06\u4ee5BSON\u683c\u5f0f\u5bfc\u51fa\u5230rollback\u6587\u4ef6\u4e2d\uff0c\u4ee5\u4fdd\u8bc1\u6570\u636e\u4e00\u81f4\u6027\u3002<\/value><\/p>\n<p>\u5f3a\u538b\u7f29\uff1a\u652f\u6301snappy\u53cazlib\u538b\u7f29\u6a21\u5f0f\uff0c\u53ef\u63d0\u4f9b2-7\u500d\u538b\u7f29\u6bd4<\/p>\n<p>\u5206\u5e03\u5f0f\uff1a\u57fa\u4e8e\u6587\u6863\u7684\u5206\u5e03\u5f0f\u6570\u636e\u5b58\u50a8\u7cfb\u7edf\uff0c\u63d0\u4f9b\u5bb9\u91cf\u53ca\u8bfb\u5199\u6269\u5c55<\/p>\n<p>\u6587\u6863\u5316\uff1a\u57fa\u4e8ejson\u5316\u7684\u6587\u6863\u8bb0\u5f55\u683c\u5f0f\uff0c\u5b57\u6bb5\u81ea\u7531\u589e\u51cf\uff0c3.0\u540e\u9ed8\u8ba4\u6587\u6863\u7ea7\u522b\u9501<\/p>\n<\/blockquote>\n<h2 id=\"\u4e09\u3001\u90e8\u7f72\u67b6\u6784\">\u4e09\u3001\u90e8\u7f72\u67b6\u6784<\/h2>\n<h4 id=\"3.1\u5355\u70b9\u90e8\u7f72\">3.1 \u5355\u70b9\u90e8\u7f72<\/h4>\n<p>\u6240\u8c13\u7684\u5355\u70b9\u5c31\u662f\u4ec5\u8d77\u4e00\u4e2amongod\u8fdb\u7a0b\u63d0\u4f9b\u670d\u52a1\u3002<\/p>\n<p>\u7279\u70b9\uff1a\u8d44\u6e90\u6d88\u8017\u6700\u5c11\uff0c\u90e8\u7f72\u7b80\u5355\uff0c\u7ba1\u7406\u65b9\u4fbf\uff0c\u4f46\u6545\u969c\u6062\u590d\u6210\u672c\u8f83\u9ad8<\/p>\n<h4 id=\"3.2\u4e3b\u4ece\u6a21\u5f0f\">3.2  \u4e3b\u4ece\u6a21\u5f0f<\/h3>\n<p>\u7c7b\u4f3c\u4e8eMySQL\u6570\u636e\u5e93\u65f6\u5e7f\u6cdb\u91c7\u7528\u7684\u6a21\u5f0f\uff0c\u91c7\u7528\u53cc\u673a\u5907\u4efd\u540e\u4e3b\u8282\u70b9\u6302\u6389\u4e86\u540e\u4ece\u8282\u70b9\u53ef\u4ee5\u63a5\u66ff\u4e3b\u673a\u7ee7\u7eed\u670d\u52a1\u3002\u6240\u4ee5\u8fd9\u79cd\u6a21\u5f0f\u6bd4\u5355\u8282\u70b9\u7684\u8981\u53ef\u9760\u5f97\u591a\u3002<\/p>\n<p>MongoDB\u7684\u4e3b\u4ece\u590d\u5236\u662f\u901a\u8fc7Oplog\u5b9e\u73b0\u7684\u3002\u5c31\u662f\u4e3b\u8282\u70b9\u4e2d\u6240\u6709\u7684\u5199\u5165\u64cd\u4f5c\u90fd\u4f1a\u8bb0\u5f55\u5230MongoDB Oplog\u4e2d\uff0c\u7136\u540e\u4ece\u5e93\u4f1a\u6765\u4e3b\u5e93\u4e00\u76f4\u62c9\u53d6Oplog\u5e76\u5e94\u7528\u5230\u81ea\u5df1\u7684\u6570\u636e\u5e93\u4e2d\u3002<\/p>\n<p>MongoDB\u5b98\u65b9\u5df2\u7ecf\u4e0d\u5efa\u8bae\u4f7f\u7528\u4e3b\u4ece\u6a21\u5f0f\u4e86\uff0c\u66ff\u4ee3\u65b9\u6848\u662f\u91c7\u7528\u526f\u672c\u96c6\u7684\u6a21\u5f0f\u3002<\/p>\n<h4 id=\"3.3\u96c6\u7fa4\u90e8\u7f72\">3.3 \u96c6\u7fa4\u90e8\u7f72<\/h4>\n<p>\u591a\u53f0\u670d\u52a1\u5668\u5171\u540c\u63d0\u4f9b\u670d\u52a1\uff0c\u4ee5\u6570\u636e\u5197\u4f59\u7684\u65b9\u5f0f\u63d0\u4f9b\u9ad8\u53ef\u7528\u7684\u670d\u52a1\u3002\u5e38\u7528\u7684\u96c6\u7fa4\u90e8\u7f72\u67b6\u6784\u6709\u4ee5\u4e0b\u4e24\u79cd\uff1a<\/p>\n<h4 id=\"3.4\u526f\u672c\u96c6\uff08replsetset\uff09\">3.4 \u526f\u672c\u96c6\uff08replset set\uff09<\/h4>\n<p>\u7b80\u5355\u5730\u8bf4\uff0c\u526f\u672c\u96c6\u5c31\u662f\u6709\u81ea\u52a8\u6545\u969c\u6062\u590d\u529f\u80fd\u7684\u4e3b\u4ece\u96c6\u7fa4\u3002\u526f\u672c\u96c6\u5177\u6709\u591a\u4e2a\u526f\u672c\u4fdd\u8bc1\u4e86\u5bb9\u9519\u6027\uff0c\u5e76\u4e14\u53ef\u4ee5\u81ea\u52a8\u9009\u4e3eMaster\u8282\u70b9\u4fdd\u969c\u9ad8\u53ef\u7528\u3002<\/p>\n<p>\u526f\u672c\u96c6\u662f\u4e00\u7ec4\u5305\u542b\u76f8\u540c\u6570\u636e\u7684mongod\u670d\u52a1\uff0c\u67b6\u6784\u56fe\u5982\uff1a<\/p>\n<p><img decoding=\"async\" src=\"\/\/www.ipcpu.com\/wp-content\/uploads\/2018\/12\/283bb6482199d1dead4527e098b8a586_2018-03-23_2.jpg\"><\/p>\n<p>\u7279\u70b9\uff1a\u8d44\u6e90\u6d88\u8017\u5c11\uff0c\u4f7f\u7528\u53ca\u540e\u671f\u8fd0\u7ef4\u65b9\u4fbf <br \/>\n\u9650\u5236\uff1a\u96c6\u7fa4\u7684\u5b58\u50a8\u5bb9\u91cf\u53caTPS\u53d7\u9650\u4e8e\u5355\u53f0\u670d\u52a1\u5668\u5e38\u89c1<\/p>\n<h4 id=\"3.5\u5206\u5e03\u5f0f\u96c6\u7fa4\uff08monogs\uff09\uff08\u5206\u7247\uff09\">3.5 \u5206\u5e03\u5f0f\u96c6\u7fa4\uff08monogs\uff09\uff08\u5206\u7247\uff09<\/h4>\n<p>mongos\u662fMongoDB\u63d0\u51fa\u7684\u901a\u8fc7\u5bf9\u6570\u636e\u548c\u8bbf\u95ee\u7684\u6c34\u5e73\u62c6\u5206\u4ee5\u5e94\u5bf9\u5927\u6570\u636e\u91cf\u548c\u9ad8\u541e\u5410\u91cf\u5e94\u7528\u7684\u6570\u636e\u5b58\u50a8\u7cfb\u7edf\u7684\u89e3\u51b3\u65b9\u6848\u3002\u901a\u8fc7\u5bf9\u6570\u636e\u548c\u8bbf\u95ee\u7684\u6c34\u5e73\u62c6\u5206\u4ee5\u6ee1\u8db3\u5927\u6570\u636e\u91cf\u548c\u9ad8\u541e\u5410\u91cf\u7684\u5e94\u7528\u573a\u666f\u3002\u67b6\u6784\u56fe\u5982\uff1a<\/p>\n<p><img decoding=\"async\" src=\"\/\/www.ipcpu.com\/wp-content\/uploads\/2018\/12\/283bb6482199d1dead4527e098b8a586_6a623f63-5c99-4946-825a-f985b9a46e0e.jpg\"><\/p>\n<p>\u8282\u70b9\u8bf4\u660e\uff1a<\/p>\n<blockquote>\n<p>shard\uff1a\u6bcf\u4e2ashard\u4fdd\u5b58\u96c6\u7fa4\u7684\u90e8\u5206\u6570\u636e\uff0c\u5408\u5e76\u540e\u6784\u6210\u4e00\u4efd\u5b8c\u6574\u7684\u6570\u636e\u96c6\u3002\u7ebf\u4e0a\u73af\u5883\u4e2d\uff0cShard\u5efa\u8bae\u90e8\u7f72\u4e3a\u4e00\u4e2a\u526f\u672c\u96c6\u4ee5\u63d0\u4f9b\u6570\u636e\u5197\u4f59\u53ca\u9ad8\u53ef\u7528\u3002<\/p>\n<p>mongos\uff1a\u67e5\u8be2\u8def\u7531\uff0c\u5c06\u67e5\u8be2\u53ca\u66f4\u65b0\u64cd\u4f5c\u8def\u7531\u81f3\u96c6\u7fa4\u76f8\u5e94shard\u5206\u7247\uff0c\u5e76\u5c06\u6267\u884c\u7ed3\u679c\u53cd\u9988\u7ed9\u7528\u6237\u6216\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n<p>configserver\uff1a\u5b58\u50a8\u96c6\u7fa4\u7684\u5143\u6570\u636e\u4fe1\u606f\u30023.2+\u5f00\u59cb\uff0cconfig\u670d\u52a1\u5668\u7531\u955c\u50cf\u6a21\u5f0f\uff08SCCC\uff09\u5347\u7ea7\u4e3a\u526f\u672c\u96c6\u6a21\u5f0f\uff08CSRS\uff09\uff0c\u4ee5\u5229\u7528\u6807\u51c6\u7684\u526f\u672c\u96c6\u7684\u8bfb\u53d6\u548c\u5199\u5165\u534f\u8bae\u5904\u7406\u5206\u7247\u7684\u914d\u7f6e\u5143\u6570\u636e\uff0c\u4fdd\u8bc1config\u7684\u9ad8\u53ef\u7528\u53ca\u6570\u636e\u4e00\u81f4\u6027\u3002<\/p>\n<\/blockquote>\n<p>\u7279\u70b9\uff1a\u7ed3\u6784\u590d\u6742\u3001\u5f39\u6027\u6269\u5c55\u3001\u5f39\u6027\u5bb9\u91cf<\/p>\n<p>\u672c\u6b21\u53ea\u4ecb\u7ecd\u526f\u672c\u96c6ReplSet\u7684\u90e8\u7f72\uff0c\u5206\u5e03\u5f0f\u96c6\u7fa4\uff08\u5206\u7247\uff09\u4ee5\u540e\u518d\u8bb2\u3002<\/p>\n<h2 id=\"\u56db\u3001\u526f\u672c\u96c6ReplSet\u7684\u90e8\u7f72\">\u56db\u3001\u526f\u672c\u96c6ReplSet\u7684\u90e8\u7f72<\/h2>\n<p>\u51c6\u5907\u4e09\u53f0\u670d\u52a1\u5668\uff1a192.168.1.101\u3001192.168.1.102\u3001192.168.1.103<\/p>\n<p>\u5206\u522b\u5b89\u88c5\u5e76\u542f\u52a8mongoDB\u670d\u52a1\u3002\u6211\u8fd9\u91cc\u4f7f\u7528\u4e86\u7edf\u4e00\u7684\u914d\u7f6e\u6587\u4ef6\uff0c\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n<div>\n<pre><code>#start shell: numactl --interleave=all \/usr\/bin\/mongod -f \/etc\/mongodb\/mongodb.conf --journal\r\nsystemLog:\r\n destination: file\r\n path: \"\/data\/logs\/mongodb\/mongodb.log\"\r\n quiet: true\r\n logAppend: true\r\n timeStampFormat: iso8601-utc\r\nstorage:\r\n wiredTiger:\r\n  engineConfig:\r\n   cacheSizeGB: 6\r\n dbPath: \"\/data\/mongodb\"\r\n directoryPerDB: true\r\n indexBuildRetry: false\r\n# quota:\r\n# enforced: false\r\n# maxFilesPerDB: 8\r\n syncPeriodSecs: 60\r\n# repairPath: \"\/var\/lib\/mongo\/_tmp\"\r\n journal:\r\n  enabled: false\r\n# debugFlags: 1\r\n# commitIntervalMs: 100\r\nprocessManagement:\r\n fork: true\r\n pidFilePath: \"\/data\/run\/mongodb\/mongod.pid\"\r\nnet:\r\n# bindIp: 127.0.0.1\r\n port: 27017\r\n# http:\r\n# enabled: true\r\n# RESTInterfaceEnabled: false\r\n# ssl:\r\n# mode: \"requireSSL\"\r\n# PEMKeyFile: \"\/etc\/ssl\/mongodb.pem\"\r\noperationProfiling:\r\n slowOpThresholdMs: 100\r\n mode: \"slowOp\"\r\n#security:\r\n# keyFile: \"\/var\/lib\/mongo\/mongodb-keyfile\"\r\n# clusterAuthMode: \"keyFile\"\r\n# authorization: \"disabled\"\r\nreplication:\r\n oplogSizeMB: 1024\r\n replSetName: \"replname\"\r\n secondaryIndexPrefetch: \"all\"<\/code><\/pre>\n<\/div>\n<p>\u7136\u540e\uff0c\u6211\u4eec\u9700\u8981\u53bb\u521d\u59cb\u5316\u526f\u672c\u96c6\u3002\u767b\u9646\u5176\u4e2d1\u53f0Mongo\u4e2d\uff0c\u6267\u884c<\/p>\n<div>\n<pre><code>#\u8bbe\u7f6ereplset\u670d\u52a1\u5668\r\nconfig = { _id:\"replname\", members:[\r\n... {_id:0,host:\" 192.168.1.101:27017\"},\r\n... {_id:1,host:\" 192.168.1.102:27017\"},\r\n... {_id:2,host:\" 192.168.1.103:27017\"}]\r\n... }\r\n#\u6267\u884c\u521d\u59cb\u5316\r\nrs.initiate(config);<\/code><\/pre>\n<\/div>\n<p>\u5b8c\u6210\u4ee5\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528rs.status();\u67e5\u770b\u5f53\u524dmongodb\u6240\u5904\u7684\u72b6\u6001\u3002<\/p>\n<div>\n<pre><code>replname:PRIMARY&gt; rs.status()\r\n{\r\n \"name\" : \"192.168.1.101:27017\",\r\n \"health\" : 1,\r\n \"state\" : 1,\r\n \"stateStr\" : \"PRIMARY\",<\/code><\/pre>\n<\/div>\n<p>\u5bf9\u4e8ers.status();\u67e5\u770b\u5230\u7684\u526f\u672c\u96c6\u72b6\u6001\uff0c\u53ef\u4ee5\u6709\u5982\u4e0b\u60c5\u51b5\uff1a<\/p>\n<blockquote>\n<p>PRIMARY \uff1a \u4e3b\u8282\u70b9 <br \/>\n  SECONDARY \uff1a \u5907\u4efd\u8282\u70b9 <br \/>\n  STARTUP \uff1a \u521a\u52a0\u5165\u5230\u590d\u5236\u96c6\u4e2d\uff0c\u914d\u7f6e\u8fd8\u672a\u52a0\u8f7d <br \/>\n  STARTUP2 \uff1a \u914d\u7f6e\u5df2\u52a0\u8f7d\u5b8c\uff0c\u521d\u59cb\u5316\u72b6\u6001 <br \/>\n  RECOVERING \uff1a \u6b63\u5728\u6062\u590d\uff0c\u4e0d\u9002\u7528\u8bfb <br \/>\n  ARBITER:\u4ef2\u88c1\u8005 <br \/>\n  DOWN \uff1a \u8282\u70b9\u4e0d\u53ef\u5230\u8fbe <br \/>\n  UNKNOWN \uff1a \u672a\u83b7\u53d6\u5176\u4ed6\u8282\u70b9\u72b6\u6001\u800c\u4e0d\u77e5\u662f\u4ec0\u4e48\u72b6\u6001\uff0c\u4e00\u822c\u53d1\u751f\u5728\u53ea\u6709\u4e24\u4e2a\u6210\u5458\u7684\u67b6\u6784\uff0c\u8111\u88c2 <br \/>\n  REMOVED \uff1a \u79fb\u9664\u590d\u5236\u96c6 <br \/>\n  ROLLBACK \uff1a \u6570\u636e\u56de\u6eda\uff0c\u5728\u56de\u6eda\u7ed3\u675f\u65f6\uff0c\u8f6c\u79fb\u5230RECOVERING\u6216SECONDARY\u72b6\u6001 <br \/>\n  FATAL \uff1a \u51fa\u9519\u3002\u67e5\u770b\u65e5\u5fd7grep \"replSet FATAL\"\u627e\u51fa\u9519\u539f\u56e0\uff0c\u91cd\u65b0\u505a\u540c\u6b65<\/p>\n<\/blockquote>\n<p>\u9ed8\u8ba4\u60c5\u51b5\u53ea\u5141\u8bb8\u4e3b\u8282\u70b9\u8bfb\u5199\u6570\u636e\uff0c\u526f\u672c\u8282\u70b9\u4e0d\u5141\u8bb8\u8bfb\uff0c\u53ea\u8981\u8bbe\u7f6e\u526f\u672c\u53ef\u4ee5\u8bfb\u5373\u53ef\u3002 <br \/>\n\u5728\u526f\u672c\u8282\u70b9\u4e0a\u6267\u884c\uff1ars.slaveOk() <\/p>\n<h2 id=\"\u4e94\u3001\u526f\u672c\u96c6\u7684\u4fee\u6539\u548c\u7ba1\u7406\">\u4e94\u3001\u526f\u672c\u96c6\u7684\u4fee\u6539\u548c\u7ba1\u7406<\/h2>\n<h4 id=\"5.1\u6dfb\u52a0\u65b0\u6210\u5458\">5.1    \u6dfb\u52a0\u65b0\u6210\u5458<\/h4>\n<div>\n<pre><code>rs.add(\"server-3:27017\");\r\nrs.add( { host: \"mongodb3.example.net:27017\", priority: 0, votes: 0 } )\r\nrs.add({_id: 3, host: \"172.28.9.178:27017\", priority: 0, votes: 0, hidden: true})\r\n<\/code><\/pre>\n<\/div>\n<p>\u6210\u5458\u53ef\u4ee5\u6709\u4ee5\u4e0b\u5c5e\u6027<\/p>\n<blockquote>\n<p><strong>priority<\/strong>\uff1a\u8868\u793a\u4e00\u4e2a\u6210\u5458\u88ab\u9009\u4e3e\u4e3aPrimary\u8282\u70b9\u7684\u4f18\u5148\u7ea7\uff0c\u9ed8\u8ba4\u503c\u662f1\uff0c\u53d6\u503c\u8303\u56f4\u662f\u4ece0\u5230100\uff0c\u5c06priority\u8bbe\u7f6e\u4e3a0\u6709\u7279\u6b8a\u542b\u4e49\uff1aPriority\u4e3a0\u7684\u6210\u5458\u6c38\u8fdc\u4e0d\u80fd\u6210\u4e3aPrimary \u8282\u70b9\u3002Replica Set\u4e2d\uff0cPriority\u6700\u9ad8\u7684\u6210\u5458\uff0c\u4f1a\u4f18\u5148\u88ab\u9009\u4e3e\u4e3aPrimary \u8282\u70b9\uff0c\u53ea\u8981\u5176\u6ee1\u8db3\u6761\u4ef6\u3002<\/p>\n<p><strong>hidden<\/strong>\uff1a\u5c06\u6210\u5458\u914d\u7f6e\u4e3a\u9690\u85cf\u6210\u5458\uff0c\u8981\u6c42Priority \u4e3a0\u3002Client\u4e0d\u4f1a\u5411\u9690\u85cf\u6210\u5458\u53d1\u9001\u8bf7\u6c42\uff0c\u56e0\u6b64\u9690\u85cf\u6210\u5458\u4e0d\u4f1a\u6536\u5230Client\u7684Request\u3002<\/p>\n<p><strong>slaveDelay<\/strong>\uff1a\u5355\u4f4d\u662f\u79d2\uff0c\u5c06Secondary \u6210\u5458\u914d\u7f6e\u4e3a\u5ef6\u8fdf\u5907\u4efd\u8282\u70b9\uff0c\u8981\u6c42Priority \u4e3a0\uff0c\u8868\u793a\u8be5\u6210\u5458\u6bd4Primary \u6210\u5458\u6ede\u540e\u6307\u5b9a\u7684\u65f6\u95f4\uff0c\u624d\u80fd\u5c06Primary\u4e0a\u8fdb\u884c\u7684\u5199\u64cd\u4f5c\u540c\u6b65\u5230\u672c\u5730\u3002\u4e3a\u4e86\u6570\u636e\u8bfb\u53d6\u7684\u4e00\u81f4\u6027\uff0c\u5e94\u5c06\u5ef6\u8fdf\u5907\u4efd\u8282\u70b9\u7684hidden\u8bbe\u7f6e\u4e3atrue\uff0c\u907f\u514d\u7528\u6237\u8bfb\u53d6\u5230\u660e\u663e\u6ede\u540e\u7684\u6570\u636e\u3002Delayed members maintain a copy of the data that reflects the state of the data at some time in the past.<\/p>\n<p><strong>votes<\/strong>\uff1a\u6709\u6548\u503c\u662f0\u62161\uff0c\u9ed8\u8ba4\u503c\u662f1\uff0c\u5982\u679cvotes\u662f1\uff0c\u8868\u793a\u8be5\u6210\u5458\uff08voting member\uff09\u6709\u6743\u9650\u9009\u4e3ePrimary \u6210\u5458\u3002\u5728\u4e00\u4e2aReplica Set\u4e2d\uff0c\u6700\u591a\u67097\u4e2a\u6210\u5458\uff0c\u5176votes \u5c5e\u6027\u7684\u503c\u662f1\u3002<\/p>\n<p><strong>arbiterOnly<\/strong>\uff1a\u8868\u793a\u8be5\u6210\u5458\u662f\u4ef2\u88c1\u8005\uff0carbiter\u7684\u552f\u4e00\u4f5c\u7528\u662f\u5c31\u662f\u53c2\u4e0e\u9009\u4e3e\uff0c\u5176votes\u5c5e\u6027\u662f1\uff0carbiter\u4e0d\u4fdd\u5b58\u6570\u636e\uff0c\u4e5f\u4e0d\u4f1a\u4e3aclient\u63d0\u4f9b\u670d\u52a1\u3002<\/p>\n<\/blockquote>\n<p>\u5176\u4e2dvotes\u5c5e\u6027\u5fc5\u987b\u7279\u522b\u6ce8\u610f\uff0c\u56e0\u4e3a\u9009\u4e3eprimary\uff0c\u5fc5\u987b\u8981\u6c42\u6210\u5458\u83b7\u5f97\u534a\u6570\u4ee5\u4e0a\u5b58\u6d3b\u7ed3\u70b9\u7684votes\u901a\u8fc7\u3002 <br \/>\n\u5982\u679c\u6dfb\u52a0hidden\u8282\u70b9\uff0c\u5176\u9ed8\u8ba4votes\u5c5e\u6027\u4e3a1\uff0c\u5728\u505c\u673a\u7ef4\u62a4\u65f6\u5982\u679c\u51fa\u73b01\/2\u8282\u70b9\u505c\u673a\u4f1a\u51fa\u73b0\u4e25\u91cd\u7684\u65e0\u6cd5\u9009\u4e3eprimary\u7684\u95ee\u9898\uff0c\u56e0\u6b64hidden\u8282\u70b9votes\u5c5e\u6027\u6700\u597d\u8bbe\u7f6e\u4e3a0\uff0c\u8fd9\u6837hidden\u8282\u70b9\u505c\u673a\u4e0d\u4f1a\u5f71\u54cd\u96c6\u7fa4\u7684\u9009\u4e3e\u3002<\/p>\n<h4 id=\"5.2\u5220\u9664\u6210\u5458\">5.2    \u5220\u9664\u6210\u5458<\/h4>\n<div>\n<pre><code>rs.remove(\"SERVER-3:27017\");<\/code><\/pre>\n<\/div>\n<p>\u5728\u5220\u9664\u6210\u5458\u65f6\u4f1a\u62a5\u9519\u65e0\u6cd5\u8fde\u63a5\u5230\u6570\u636e\u5e93\u7684\u4fe1\u606f\uff0c\u8fd9\u662f\u6b63\u5e38\u7684\uff0c\u8bf4\u660e\u914d\u7f6e\u4fee\u6539\u6210\u529f\u4e86\u3002 <br \/>\n\u91cd\u65b0\u914d\u7f6e\u526f\u672c\u96c6\u8fc7\u7a0b\u4e2d\u7684\u6700\u540e\u4e00\u6b65\uff0c\u4e3b\u8282\u70b9\u4f1a\u5173\u95ed\u6240\u6709\u8fde\u63a5\uff0c\u56e0\u6b64shell\u4f1a\u77ed\u6682\u65ad\u5f00\u7136\u540e\u91cd\u65b0\u81ea\u52a8\u5efa\u7acb\u8fde\u63a5\u3002<\/p>\n<h4 id=\"5.3\u914d\u7f6e\u526f\u672c\u96c6\u5185\u5bb9\u5e76\u91cd\u8f7d\">5.3    \u914d\u7f6e\u526f\u672c\u96c6\u5185\u5bb9\u5e76\u91cd\u8f7d<\/h4>\n<p>\u540c\u6837\u4e5f\u53ef\u4ee5\u4fee\u6539config\u5185\u5bb9\u540e\u8fdb\u884c\u91cd\u8f7d<\/p>\n<div>\n<pre><code>#\u8f7d\u5165\u914d\u7f6e\r\ncfg = rs.conf()\r\n#\u8bbe\u7f6evotes\u503c\r\ncfg.members[0].votes = 1\r\ncfg.members[1].votes = 1\r\ncfg.members[2].votes = 1\r\ncfg.members[3].votes = 0\r\n#\u91cd\u8f7d\r\nrs.reconfig(cfg)<\/code><\/pre>\n<\/div>\n<h4 id=\"5.4\u4f7f\u4e3b\u8282\u70b9\u53d8\u6210\u5907\u4efd\u8282\u70b9\">5.4    \u4f7f\u4e3b\u8282\u70b9\u53d8\u6210\u5907\u4efd\u8282\u70b9<\/h4>\n<div>\n<pre><code>rs.stepDown(time) <\/code><\/pre>\n<\/div>\n<p>\u53ef\u4ee5\u8ba9\u4e3b\u8282\u70b9\u9000\u6210\u5907\u4efd\u8282\u70b9\uff0ctimie\u5355\u4f4d\u662f\u79d2\uff0c\u9ed8\u8ba460s\u300260s\u5185\u4e3b\u88ab\u526f\u672c\u96c6\u7684\u5176\u4ed6\u6210\u5458\u83b7\u5f97\uff0c\u65f6\u95f4\u5230\u540e\uff0c\u4f1a\u91cd\u65b0\u8fdb\u884c\u9009\u4e3e\uff0c\u4e00\u822c\u90fd\u4f1a\u91cd\u65b0\u6210\u4e3a\u4e3b\uff08\u4f18\u5148\u7ea7\uff09\u3002<\/p>\n<h4 id=\"5.5\u963b\u6b62\u9009\u4e3e\">5.5    \u963b\u6b62\u9009\u4e3e<\/h4>\n<div>\n<pre><code>rs.freeze(time)<\/code><\/pre>\n<\/div>\n<p>\u963b\u6b62\u9009\u4e3e\uff0c\u59cb\u7ec8\u51fa\u4e8e\u5907\u4efd\u8282\u70b9\u72b6\u6001\u3002\u6bd4\u5982\u4e3b\u8282\u70b9\u9700\u8981\u505a\u4e00\u4e9b\u7ef4\u62a4\uff0c\u4e0d\u5e0c\u671b\u5176\u4ed6\u6210\u5458\u9009\u4e3e\u4e3a\u4e3b\u8282\u70b9\uff0c\u53ef\u4ee5\u5728\u6bcf\u4e2a\u5907\u4efd\u8282\u70b9\u4e0a\u6267\u884c\u3002\u5f3a\u5236\u4ed6\u4eec\u51fa\u4e8e\u5907\u4efd\u8282\u70b9\u72b6\u6001\u3002<\/p>\n<h4 id=\"5.6\u76d1\u63a7\u590d\u5236\u5ef6\u8fdf\u65f6\u95f4\">5.6    \u76d1\u63a7\u590d\u5236\u5ef6\u8fdf\u65f6\u95f4<\/h4>\n<p>\u5728\u5907\u5e93\u4e0a\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4<\/p>\n<div>\n<pre><code>replname:SECONDARY&gt;db.printSlaveReplicationInfo()\r\nsource: 192.168.1.101:27017\r\n syncedTo:Mon Dec 01 2014 18:12:32 GMT+0800 (CST)\r\n 0secs (0 hrs) behind the primary\r\nsource: 192.168.1.102:27019\r\n syncedTo: Mon Dec 01 2014 18:12:32 GMT+0800 (CST)\r\n 0 secs (0 hrs) behind the primary<\/code><\/pre>\n<\/div>\n<p>\u4e4b\u6240\u4ee5\u67092\u4e2a\u540c\u6b65\u6e90\uff0c\u662f\u56e0\u4e3a\u542f\u7528\u4e86\u94fe\u5f0f\u590d\u5236\u3002<\/p>\n<h2 id=\"\u516d\u3001\u526f\u672c\u96c6\u7684\u8bfb\u5199\u5206\u79bb\">\u516d\u3001\u526f\u672c\u96c6\u7684\u8bfb\u5199\u5206\u79bb<\/h2>\n<p>\u4e3b\u8282\u70b9\u8bfb\u5199\u538b\u529b\u8fc7\u5927\uff0c\u5982\u4f55\u89e3\u51b3\u5462\uff1f\u5e38\u89c1\u7684\u89e3\u51b3\u65b9\u6848\u662f\u8bfb\u5199\u5206\u79bb\uff0cMongoDB\u526f\u672c\u96c6\u7684\u8bfb\u5199\u5206\u79bb\u5982\u4f55\u505a\u5462\uff1f<\/p>\n<p>Mongodb\u7684\u5ba2\u6237\u7aef\uff08\u9a71\u52a8\uff09\u652f\u63015\u79cd\u590d\u5236\u96c6\u8bfb\u9009\u9879\uff1a<\/p>\n<blockquote>\n<p>primary\uff1a\u9ed8\u8ba4\u6a21\u5f0f\uff0c\u6240\u6709\u7684\u8bfb\u64cd\u4f5c\u90fd\u5728\u590d\u5236\u96c6\u7684 \u4e3b\u8282\u70b9 \u8fdb\u884c\u7684\u3002 <br \/>\n  primaryPreferred\uff1a\u5728\u5927\u591a\u6570\u60c5\u51b5\u65f6\uff0c\u8bfb\u64cd\u4f5c\u5728 \u4e3b\u8282\u70b9 \u4e0a\u8fdb\u884c\uff0c\u4f46\u662f\u5982\u679c\u4e3b\u8282\u70b9\u4e0d\u53ef\u7528\u4e86\uff0c\u8bfb\u64cd\u4f5c\u5c31\u4f1a\u8f6c\u79fb\u5230 \u4ece\u8282\u70b9 \u4e0a\u6267\u884c\u3002 <br \/>\n  secondary\uff1a\u6240\u6709\u7684\u8bfb\u64cd\u4f5c\u90fd\u5728\u590d\u5236\u96c6\u7684 \u4ece\u8282\u70b9 \u4e0a\u6267\u884c\u3002 <br \/>\n  secondaryPreferred\uff1a\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u8bfb\u64cd\u4f5c\u90fd\u662f\u5728 \u4ece\u8282\u70b9 \u4e0a\u8fdb\u884c\u7684\uff0c\u4f46\u662f\u5f53 \u4ece\u8282\u70b9 \u4e0d\u53ef\u7528\u4e86\uff0c\u8bfb\u64cd\u4f5c\u4f1a\u8f6c\u79fb\u5230 \u4e3b\u8282\u70b9 \u4e0a\u8fdb\u884c\u3002 <br \/>\n  nearest\uff1a\u8bfb\u64cd\u4f5c\u4f1a\u5728 \u590d\u5236\u96c6 \u4e2d\u7f51\u7edc\u5ef6\u65f6\u6700\u5c0f\u7684\u8282\u70b9\u4e0a\u8fdb\u884c\uff0c\u4e0e\u8282\u70b9\u7c7b\u578b\u65e0\u5173\u3002<\/p>\n<\/blockquote>\n<p>\u6ce8\u610f\uff1a\u5b9e\u9645\u751f\u4ea7\u4f7f\u7528\u4e2d\uff0c\u4f1a\u5b58\u5728\u4ece\u8282\u70b9\u4e0a\u7684\u6570\u636e\u53ef\u80fd\u4e0d\u662f\u6700\u65b0\u6570\u636e\u7684\u95ee\u9898\uff0c\u9700\u8981\u6839\u636e\u4e1a\u52a1\u60c5\u51b5\u51b3\u5b9a\u8bfb\u5199\u5206\u79bb\u3002<\/p>\n<h2 id=\"\u4e03\u3001\u526f\u672c\u96c6\u7684\u56de\u6eda\">\u4e03\u3001\u526f\u672c\u96c6\u7684\u56de\u6eda<\/h2>\n<p>\u6211\u4eec\u77e5\u9053\u5728\u53d1\u751f\u5207\u6362\u7684\u65f6\u5019\u662f\u6709\u53ef\u80fd\u9020\u6210\u6570\u636e\u4e22\u5931\u7684\uff0c\u4e3b\u8981\u662f\u56e0\u4e3a\u4e3b\u5e93\u5b95\u673a\uff0c\u4f46\u662f\u65b0\u5199\u5165\u7684\u6570\u636e\u8fd8\u6ca1\u6709\u6765\u5f97\u53ca\u540c\u6b65\u5230\u4ece\u5e93\u4e2d\uff0c\u8fd9\u4e2a\u65f6\u5019\u5c31\u4f1a\u53d1\u751f\u6570\u636e\u4e22\u5931\u7684\u60c5\u51b5\u3002<\/p>\n<p>\u90a3\u9488\u5bf9\u8fd9\u79cd\u60c5\u51b5\uff0cMongoDB\u589e\u52a0\u4e86\u56de\u6eda\u7684\u673a\u5236\u3002\u5728\u4e3b\u5e93\u6062\u590d\u540e\u91cd\u65b0\u52a0\u5165\u5230\u590d\u5236\u96c6\u4e2d\uff0c\u8fd9\u4e2a\u65f6\u5019\u8001\u4e3b\u5e93\u4f1a\u4e0e\u540c\u6b65\u6e90\u5bf9\u6bd4oplog\u4fe1\u606f\uff0c\u8fd9\u65f6\u5019\u5206\u4e3a\u4ee5\u4e0b\u4e24\u79cd\u60c5\u51b5\uff1a<\/p>\n<blockquote>\n<p>1\u3001 \u5728\u540c\u6b65\u6e90\u4e2d\u6ca1\u6709\u627e\u5230\u6bd4\u8001\u4e3b\u5e93\u65b0\u7684oplog\u4fe1\u606f\u3002 <br \/>\n  2\u3001 \u540c\u6b65\u6e90\u6700\u65b0\u4e00\u6761oplog\u4fe1\u606f\u8ddf\u8001\u4e3b\u5e93\u7684optime\u548coplog\u7684hash\u5185\u5bb9\u4e0d\u540c\u3002<\/p>\n<\/blockquote>\n<p>\u9488\u5bf9\u4e0a\u8ff0\u4e24\u79cd\u60c5\u51b5MongoDB\u4f1a\u8fdb\u884c\u56de\u6eda\uff0c\u56de\u6eda\u7684\u8fc7\u7a0b\u5c31\u662f\u9006\u5411\u5bf9\u6bd4oplog\u7684\u4fe1\u606f\uff0c\u76f4\u5230\u5728\u8001\u4e3b\u5e93\u548c\u540c\u6b65\u6e90\u4e2d\u627e\u5230\u5bf9\u5e94\u7684oplog\uff0c\u7136\u540e\u5c06\u8fd9\u671f\u95f4\u7684oplog\u5168\u90e8\u8bb0\u5f55\u5230rollback\u76ee\u5f55\u91cc\u7684\u6587\u4ef6\u4e2d\uff0c\u5982\u679c\u4f46\u662f\u51fa\u73b0\u4ee5\u4e0b\u60c5\u51b5\u4f1a\u7ec8\u6b62\u56de\u6eda\uff1a<\/p>\n<blockquote>\n<p>\u5bf9\u6bd4\u8001\u4e3b\u5e93\u7684optime\u548c\u540c\u6b65\u6e90\u7684optime\uff0c\u5982\u679c\u8d85\u8fc7\u4e8630\u5206\u949f\uff0c\u90a3\u4e48\u653e\u5f03\u56de\u6eda\u3002 <br \/>\n  \u5728\u56de\u6eda\u7684\u8fc7\u7a0b\u4e2d\uff0c\u5982\u679c\u53d1\u73b0\u5355\u6761oplog\u8d85\u8fc7512M\uff0c\u5219\u653e\u5f03\u56de\u6eda\u3002 <br \/>\n  \u5982\u679c\u6709dropDatabase\u64cd\u4f5c\uff0c\u5219\u653e\u5f03\u56de\u6eda\u3002 <br \/>\n  \u6700\u7ec8\u751f\u6210\u7684\u56de\u6eda\u8bb0\u5f55\u8d85\u8fc7300M\uff0c\u4e5f\u4f1a\u653e\u5f03\u56de\u6eda\u3002 <br \/>\n  \u4e0a\u8ff0\u6211\u4eec\u5df2\u7ecf\u77e5\u9053\u4e86MongoDB\u7684\u56de\u6eda\u539f\u7406\uff0c\u4f46\u662f\u6211\u4eec\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u600e\u4e48\u907f\u514d\u56de\u6eda\u64cd\u4f5c\u5462\uff0c\u56e0\u4e3a\u6bd5\u7adf\u56de\u6eda\u64cd\u4f5c\u5f88\u9ebb\u70e6\uff0c\u800c\u4e14\u9488\u5bf9\u6709\u65f6\u5e8f\u6027\u7684\u4e1a\u52a1\u903b\u8f91\u4e5f\u662f\u4e0d\u53ef\u63a5\u53d7\u7684\u3002\u90a3MongoDB\u4e5f\u63d0\u4f9b\u4e86\u5bf9\u5e94\u7684\u65b9\u6848\uff0c\u5c31\u662fWriteConcern\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u6570\u636e\u4fdd\u5b58\u8fdb\u5ea6\uff0c\u662f\u786e\u4fdd\u8fdb\u5ea6\u4fdd\u5b58\u5230journal\uff0c\u8fd8\u662f\u843d\u76d8\uff0c\u8fd8\u662fReplica Acknowledged\uff0c\u6709\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u4ed4\u7ec6\u4e86\u89e3\u3002\u5176\u5b9e\u8fd9\u4e5f\u662f\u5728CAP\u4e2d\u505a\u51fa\u4e00\u4e2a\u9009\u62e9\u3002<\/p>\n<\/blockquote>\n<p>\u66f4\u8be6\u7ec6\u7684\u56de\u6eda\u8d44\u6599\uff0c<a href=\"https:\/\/blog.csdn.net\/jianlong727\/article\/details\/73321905\">https:\/\/blog.csdn.net\/jianlong727\/article\/details\/73321905<\/a><\/p>\n<h2 id=\"\u516b\u3001\u7279\u6b8a\u60c5\u51b5\u4e0b\u96c6\u7fa4\u6210\u5458\u7684\u91cd\u65b0\u540c\u6b65\">\u516b\u3001\u7279\u6b8a\u60c5\u51b5\u4e0b\u96c6\u7fa4\u6210\u5458\u7684\u91cd\u65b0\u540c\u6b65<\/h2>\n<p>\u56e0\u4e3a\u67d0\u4e9b\u539f\u56e0\uff0c\u5bfc\u81f4\u526f\u672c\u96c6\u4e2d\u7684\u4ece\u8282\u70b9\u843d\u540e\u4e8e\u4e3b\u8282\u70b9\u592a\u591a\uff0c\u8ddf\u4e0d\u4e0a\u4e3b\u8282\u70b9\u7684\u6b65\u4f10\u4e86\uff0c\u4f1a\u5bfc\u81f4\u8fd9\u4e2a\u8282\u70b9\u4e00\u76f4\u5904\u5728RECOVERING\u72b6\u6001\u3002\u4e5f\u5c31\u662f\u5b98\u7f51\u6587\u6863\u6240\u8bf4\u7684stale\uff08\u9648\u65e7\u7684\uff09\u3002<\/p>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u9700\u8981\u91cd\u65b0\u540c\u6b65\u6570\u636e\uff08initial sync\uff09\u5230\u8be5\u8282\u70b9\uff0c\u5b98\u7f51\u63d0\u4f9b\u4e86\u4e24\u79cd\u65b9\u5f0f\uff1a<\/p>\n<blockquote>\n<ol class=\"wiz-list-level1\">\n<li>\n<p>Automatically Sync a Member <br \/>\n  \u505c\u6389mongodb\uff0c\u6e05\u7a7a\u6570\u636e\u76ee\u5f55\uff0c\u542f\u52a8mongodb\uff0c\u8ba9mongodb\u81ea\u52a8\u89e6\u53d1\u540c\u6b65\u3002\u8fd9\u662f\u4e2a\u7b80\u5355\u7684\u65b9\u5f0f\uff0c\u4f46\u662f\u8017\u65f6\u8f83\u957f\u3002(\u8981\u6c42oplog\u4e0d\u80fd\u8f6e\u8f6c\uff0c\u9002\u7528\u4e8e\u6570\u636e\u5e93\u96c6\u7fa4\u521b\u5efa\u521d\u671f)<\/p>\n<\/li>\n<li>\n<p>Sync by Copying Data Files from Another Member <br \/>\n  \u505c\u6389mongodb\uff0c\u6e05\u7a7a\u6570\u636e\u76ee\u5f55\uff0c\u4ece\u5176\u4ed6\u8282\u70b9\uff08\u9700\u8981\u505c\u6b62mongod\uff09\u62f7\u8d1d\u6570\u636e\uff0c\u7136\u540e\u542f\u52a8\u3002\u62f7\u8d1d\u6765\u7684\u6570\u636e\u65f6\u95f4\u4e0a\u8981\u6c42\u80fd\u8ddf\u4e0aoplog\u3002\u9700\u8981\u5305\u542blocal\u76ee\u5f55\u3002\u672c\u65b9\u5f0f\u64cd\u4f5c\u6b65\u9aa4\u8f83\u591a\uff0c\u4f46\u662f\u6700\u4e3a\u5feb\u901f\u3002<\/p>\n<\/li>\n<\/ol>\n<\/blockquote>\n<p>\u67e5\u770bOPlog\u65b9\u6cd5\uff1a<\/p>\n<div>\n<pre><code>shard1:SECONDARY&gt; db.printReplicationInfo();\r\nconfigured oplog size: 4096MB\r\nlog length start to end: 129346secs (35.93hrs)\r\noplog first event time: Tue Mar 22 2016 11:29:04 GMT+0800 (CST)\r\noplog last event time: Wed Mar 23 2016 23:24:50 GMT+0800 (CST)\r\nnow: Wed Mar 23 2016 23:24:50 GMT+0800 (CST)\r\nshard1:SECONDARY&gt;\r\n#\u6b64\u4f8b\u4e2d\uff0coplog\u5927\u5c0f\u4e3a4G\uff0c\u4fdd\u6301\u4e8635\u4e2a\u5c0f\u65f6\u7684\u6570\u636e<\/code><\/pre>\n<\/div>\n<p>\u5b98\u7f51\u76f8\u5173\u6587\u6863\uff0c<a href=\"https:\/\/docs.mongodb.com\/manual\/tutorial\/resync-replica-set-member\/#replica-set-resync-by-copying\">https:\/\/docs.mongodb.com\/manual\/tutorial\/resync-replica-set-member\/#replica-set-resync-by-copying<\/a><\/p>\n<h2 id=\"\u53c2\u8003\u8d44\u6599\">\u53c2\u8003\u8d44\u6599<\/h2>\n<p><a href=\"http:\/\/www.cnblogs.com\/lens\/p\/4833655.html\">http:\/\/www.cnblogs.com\/lens\/p\/4833655.html<\/a> <br \/>\n<a href=\"https:\/\/zhuanlan.zhihu.com\/p\/29530029\">https:\/\/zhuanlan.zhihu.com\/p\/29530029<\/a> <br \/>\n<a href=\"https:\/\/mp.weixin.qq.com\/s\/VuRCXWKgrP9Myp-3IptGhQ\">https:\/\/mp.weixin.qq.com\/s\/VuRCXWKgrP9Myp-3IptGhQ<\/a> <br \/>\n<a href=\"http:\/\/www.mongoing.com\/archives\/5200\">http:\/\/www.mongoing.com\/archives\/5200<\/a><\/p>\n<p><wiz_tmp_tag id=\"wiz-table-range-border\" contenteditable=\"false\" style=\"display: none;\"><\/p>\n<div id=\"wiz-table-col-line\" style=\"display: none;\"><\/div>\n<div id=\"wiz-table-row-line\" style=\"display: none;\"><\/div>\n<div id=\"wiz-table-range-border_start\" style=\"display: none;\">\n<div id=\"wiz-table-range-border_start_top\"><\/div>\n<div id=\"wiz-table-range-border_start_right\"><\/div>\n<div id=\"wiz-table-range-border_start_bottom\"><\/div>\n<div id=\"wiz-table-range-border_start_left\"><\/div>\n<div id=\"wiz-table-range-border_start_dot\"><\/div>\n<\/div>\n<div id=\"wiz-table-range-border_range\" style=\"display: none;\">\n<div id=\"wiz-table-range-border_range_top\"><\/div>\n<div id=\"wiz-table-range-border_range_right\"><\/div>\n<div id=\"wiz-table-range-border_range_bottom\"><\/div>\n<div id=\"wiz-table-range-border_range_left\"><\/div>\n<div id=\"wiz-table-range-border_range_dot\"><\/div>\n<\/div>\n<p><\/wiz_tmp_tag><\/p>\n<p>\u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff1a<a href=\"https:\/\/c.ipcpu.com\">IPCPU-\u7f51\u7edc\u4e4b\u8def<\/a> &raquo; <a href=\"https:\/\/c.ipcpu.com\/2018\/09\/mongodb-replset\/\">MongoDB\u526f\u672c\u96c6ReplSet<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>MongoDB\u7684\u526f\u672c\u96c6ReplSet.md \u4e00\u3001MongoDB\u7b80\u4ecb MongoDB\u662f\u4e00\u4e2a\u57fa\u4e8e\u6587\u6863\u7684\u5206\u5e03\u5f0f\u6587\u4ef6\u5b58\u50a8\u6570\u636e\u5e93\uff0c\u65e8\u5728\u63d0\u4f9b\u53ef\u6269\u5c55\u7684\u9ad8\u6027\u80fd\u6570\u636e\u5b58\u50a8\u89e3\u51b3\u65b9\u6848\u3002\u5176\u9ad8\u6027\u80fd\uff0c\u6613\u90e8\u7f72\uff0c\u6613\u4f7f\u7528\uff0c\u5b58\u50a8\u65b9\u4fbf\u7684\u7279\u70b9\u4f7f\u5176\u6df1\u53d7\u5e7f\u5927\u5f00\u53d1\u8005\u559c\u7231\u3002 \u4e8c\u3001MongoDB\u4e3b\u8981\u7279\u6027 \u9ad8\u6027\u80fd\uff1a\u5355\u70b9\u538b\u6d4bTPS\uff1a10w+ \u9ad8\u53ef\u7528\uff1a\u7531\u4e8e\u7f51\u7edc\u95ee\u9898\u3001\u673a\u5668\u91cd\u542f\u6216\u5176\u4ed6\u95ee\u9898\u5bfc\u81f4\u4e3b\u5e93\u4e0d\u53ef\u7528\u65f6\uff0c\u96c6\u7fa4\u4f1a\u89e6\u53d1\u9009\u4e3e\u4ee5\u9009\u51fa\u65b0\u7684\u4e3b\u8282\u70b9\u7ee7\u7eed\u63d0\u4f9b\u670d\u52a1 \u4e00\u81f4\u6027\uff1a\u63d0\u4f9bfsync\uff0cjournal\u5237\u76d8\u7b56\u7565\u53ca{ w: , j: true\/false , wtimeout: n }\u5199\u7b56\u7565\u4fdd\u8bc1\u6570\u636e\u4e00\u81f4\u6027\u3002\u5982\u679c\u96c6\u7fa4\u9009\u4e3e\u5bfc\u81f4\u6570\u636e\u4e0d\u4e00\u81f4\u65f6\uff0c\u5f85\u539f\u4e3b\u8282\u70b9\u6dfb\u52a0\u81f3\u96c6\u7fa4\u65f6\uff0c\u591a\u51fa\u6765\u7684\u6570\u636e\u5c06\u4ee5BSON\u683c\u5f0f\u5bfc\u51fa\u5230rollback\u6587\u4ef6\u4e2d\uff0c\u4ee5\u4fdd\u8bc1\u6570\u636e\u4e00\u81f4\u6027\u3002 \u5f3a\u538b\u7f29\uff1a\u652f\u6301snappy\u53cazlib\u538b\u7f29\u6a21\u5f0f\uff0c\u53ef\u63d0\u4f9b2-7\u500d\u538b\u7f29\u6bd4 \u5206\u5e03\u5f0f\uff1a\u57fa\u4e8e\u6587\u6863\u7684\u5206\u5e03\u5f0f\u6570\u636e\u5b58\u50a8\u7cfb\u7edf\uff0c\u63d0\u4f9b\u5bb9\u91cf\u53ca\u8bfb\u5199\u6269\u5c55 \u6587\u6863\u5316\uff1a\u57fa\u4e8ejson\u5316\u7684\u6587\u6863\u8bb0\u5f55\u683c\u5f0f\uff0c\u5b57\u6bb5\u81ea\u7531\u589e\u51cf\uff0c3.0\u540e\u9ed8\u8ba4\u6587\u6863\u7ea7\u522b\u9501 \u4e09\u3001\u90e8\u7f72\u67b6\u6784 3.1 \u5355\u70b9\u90e8\u7f72 \u6240\u8c13\u7684\u5355\u70b9\u5c31\u662f\u4ec5\u8d77\u4e00\u4e2amongod\u8fdb\u7a0b\u63d0\u4f9b\u670d\u52a1\u3002 \u7279\u70b9\uff1a\u8d44\u6e90\u6d88\u8017\u6700\u5c11\uff0c\u90e8\u7f72\u7b80\u5355\uff0c\u7ba1\u7406\u65b9\u4fbf\uff0c\u4f46\u6545\u969c\u6062\u590d\u6210\u672c\u8f83\u9ad8 3.2 \u4e3b\u4ece\u6a21\u5f0f \u7c7b\u4f3c\u4e8eMySQL\u6570\u636e\u5e93\u65f6\u5e7f\u6cdb\u91c7\u7528\u7684\u6a21\u5f0f\uff0c\u91c7\u7528\u53cc\u673a\u5907\u4efd\u540e\u4e3b\u8282\u70b9\u6302\u6389\u4e86\u540e\u4ece\u8282\u70b9\u53ef\u4ee5\u63a5\u66ff\u4e3b\u673a\u7ee7\u7eed\u670d\u52a1\u3002\u6240\u4ee5\u8fd9\u79cd\u6a21\u5f0f\u6bd4\u5355\u8282\u70b9\u7684\u8981\u53ef\u9760\u5f97\u591a\u3002 MongoDB\u7684\u4e3b\u4ece\u590d\u5236\u662f\u901a\u8fc7Oplog\u5b9e\u73b0\u7684\u3002\u5c31\u662f\u4e3b\u8282\u70b9\u4e2d\u6240\u6709\u7684\u5199\u5165\u64cd\u4f5c\u90fd\u4f1a\u8bb0\u5f55\u5230MongoDB Oplog\u4e2d\uff0c\u7136\u540e\u4ece\u5e93\u4f1a\u6765\u4e3b\u5e93\u4e00\u76f4\u62c9\u53d6Oplog\u5e76\u5e94\u7528\u5230\u81ea\u5df1\u7684\u6570\u636e\u5e93\u4e2d\u3002 MongoDB\u5b98\u65b9\u5df2\u7ecf\u4e0d\u5efa\u8bae\u4f7f\u7528\u4e3b\u4ece\u6a21\u5f0f\u4e86\uff0c\u66ff\u4ee3\u65b9\u6848\u662f\u91c7\u7528\u526f\u672c\u96c6\u7684\u6a21\u5f0f\u3002 3.3 \u96c6\u7fa4\u90e8\u7f72 \u591a\u53f0\u670d\u52a1\u5668\u5171\u540c\u63d0\u4f9b\u670d\u52a1\uff0c\u4ee5\u6570\u636e\u5197\u4f59\u7684\u65b9\u5f0f\u63d0\u4f9b\u9ad8\u53ef\u7528\u7684\u670d\u52a1\u3002\u5e38\u7528\u7684\u96c6\u7fa4\u90e8\u7f72\u67b6\u6784\u6709\u4ee5\u4e0b\u4e24\u79cd\uff1a 3.4 \u526f\u672c\u96c6\uff08replset set\uff09 \u7b80\u5355\u5730\u8bf4\uff0c\u526f\u672c\u96c6\u5c31\u662f\u6709\u81ea\u52a8\u6545\u969c\u6062\u590d\u529f\u80fd\u7684\u4e3b\u4ece\u96c6\u7fa4\u3002\u526f\u672c\u96c6\u5177\u6709\u591a\u4e2a\u526f\u672c\u4fdd\u8bc1\u4e86\u5bb9\u9519\u6027\uff0c\u5e76\u4e14\u53ef\u4ee5\u81ea\u52a8\u9009\u4e3eMaster\u8282\u70b9\u4fdd\u969c\u9ad8\u53ef\u7528\u3002 \u526f\u672c\u96c6\u662f\u4e00\u7ec4\u5305\u542b\u76f8\u540c\u6570\u636e\u7684mongod\u670d\u52a1\uff0c\u67b6\u6784\u56fe\u5982\uff1a \u7279\u70b9\uff1a\u8d44\u6e90\u6d88\u8017\u5c11\uff0c\u4f7f\u7528\u53ca\u540e\u671f\u8fd0\u7ef4\u65b9\u4fbf 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