MongoDB 主从集群配置
创建必要的目录和认证文件：# mkdir keyfile
# echo "mongo cluster one" > keyfile/m1# echo "mongo cluster one" > keyfile/m2# echo "mongo cluster one" > keyfile/m3 启动不同端口的服务 mongod --replSet mco --keyFile /usr/local/mongo/keyfile/m1 --fork --port 28010 --dbpath=/usr/local/mongo/data0/ --logpath=/usr/local/mongo/log/m1.log --logappendmongod --replSet mco --keyFile /usr/local/mongo/keyfile/m2 --fork --port 28011 --dbpath=/usr/local/mongo/data1/ --logpath=/usr/local/mongo/log/m2.log --logappendmongod --replSet mco --keyFile /usr/local/mongo/keyfile/m3 --fork --port 28012 --dbpath=/usr/local/mongo/data2/ --logpath=/usr/local/mongo/log/m3.log --logappendmongod --replSet mco --keyFile /usr/local/mongo/keyfile/m4 --fork --port 28013 --dbpath=/usr/local/mongo/data3/ --logpath=/usr/local/mongo/log/m4.log --logappend mongod --replSet mco --keyFile /usr/local/mongo/keyfile/m5 --fork --port 28014 --dbpath=/usr/local/mongo/data4/ --logpath=/usr/local/mongo/log/m5.log --logappend --fastsync配置主从 > config_mco={_id:'mco',members:[... {_id:0,host:'localhost:28010',priority:1},... {_id:1,host:'localhost:28011'},... {_id:2,host:'localhost:28012'}]... }{ "_id" : "mco", "members" : [ { "_id" : 0, "host" : "localhost:28010", "priority" : 1 }, { "_id" : 1, "host" : "localhost:28011" }, { "_id" : 2, "host" : "localhost:28012" } ]}初始化主从 > rs.initiate(config_mco){ "info" : "Config now saved locally.Should come online in about a minute.", "ok" : 1} 查看集群状态 > rs.status()rs.status(){ "set" : "mco", "date" : ISODate("2012-12-01T03:31:14Z"), "myState" : 2, "members" : [ { "_id" : 0, "name" : "localhost:28010", "health" : 1, "state" : 2, "stateStr" : "SECONDARY", "uptime" : 1047, "optime" : Timestamp(1354332643000, 1), "optimeDate" : ISODate("2012-12-01T03:30:43Z"), "self" : true }, { "_id" : 1, "name" : "localhost:28011", "health" : 0, "state" : 8, "stateStr" : "(not reachable/healthy)", "uptime" : 0, "optime" : Timestamp(0, 0), "optimeDate" : ISODate("1970-01-01T00:00:00Z"), "lastHeartbeat" : ISODate("2012-12-01T03:30:57Z"), "pingMs" : 0, "errmsg" : "DBClientBase::findN: transport error: localhost:28011 ns: admin.$cmd query: { replSetHeartbeat: \"mco\", v: 1, pv: 1, checkEmpty: false, from: \"localhost:28010\", $auth: { local: { __system: 2 } } }" }, { "_id" : 2, "name" : "localhost:28012", "health" : 1, "state" : 6, "stateStr" : "UNKNOWN", "uptime" : 21, "optime" : Timestamp(0, 0), "optimeDate" : ISODate("1970-01-01T00:00:00Z"), "lastHeartbeat" : ISODate("2012-12-01T03:30:59Z"), "pingMs" : 0, "errmsg" : "still initializing" } ], "ok" : 1}mco:SECONDARY> rs.status(){ "set" : "mco", "date" : ISODate("2012-12-01T03:33:13Z"), "myState" : 1, "members" : [ { "_id" : 0, "name" : "localhost:28010", "health" : 1, "state" : 1, "stateStr" : "PRIMARY", "uptime" : 1166, "optime" : Timestamp(1354332643000, 1), "optimeDate" : ISODate("2012-12-01T03:30:43Z"), "self" : true }, { "_id" : 1, "name" : "localhost:28011", "health" : 1, "state" : 2, "stateStr" : "SECONDARY", "uptime" : 113, "optime" : Timestamp(1354332643000, 1), "optimeDate" : ISODate("2012-12-01T03:30:43Z"), "lastHeartbeat" : ISODate("2012-12-01T03:33:13Z"), "pingMs" : 0, "errmsg" : "syncing to: localhost:28010" }, { "_id" : 2, "name" : "localhost:28012", "health" : 1, "state" : 2, "stateStr" : "SECONDARY", "uptime" : 87, "optime" : Timestamp(1354332643000, 1), "optimeDate" : ISODate("2012-12-01T03:30:43Z"), "lastHeartbeat" : ISODate("2012-12-01T03:33:13Z"), "pingMs" : 0 } ], "ok" : 1}mco:PRIMARY> 打印从库复制信息： mco:PRIMARY> db.printSlaveReplicationInfo()source: localhost:28011 syncedTo: Sat Dec 01 2012 11:30:43 GMT+0800 (CDT) = 842 secs ago (0.23hrs)source: localhost:28012 syncedTo: Sat Dec 01 2012 11:30:43 GMT+0800 (CDT) = 842 secs ago (0.23hrs)mco:PRIMARY> 打印主从状态： mco:PRIMARY> rs.status(){ "set" : "mco", "date" : ISODate("2012-12-01T04:04:01Z"), "myState" : 1, "members" : [ { "_id" : 0, "name" : "localhost:28010", "health" : 1, "state" : 2, "stateStr" : "SECONDARY", "uptime" : 395, "optime" : Timestamp(1354334590000, 1), "optimeDate" : ISODate("2012-12-01T04:03:10Z"), "lastHeartbeat" : ISODate("2012-12-01T04:04:00Z"), "pingMs" : 0 }, { "_id" : 1, "name" : "localhost:28011", "health" : 1, "state" : 2, "stateStr" : "SECONDARY", "uptime" : 1958, "optime" : Timestamp(1354334590000, 1), "optimeDate" : ISODate("2012-12-01T04:03:10Z"), "lastHeartbeat" : ISODate("2012-12-01T04:04:00Z"), "pingMs" : 0 }, { "_id" : 2, "name" : "localhost:28012", "health" : 1, "state" : 1, "stateStr" : "PRIMARY", "uptime" : 2900, "optime" : Timestamp(1354334590000, 1), "optimeDate" : ISODate("2012-12-01T04:03:10Z"), "self" : true }, { "_id" : 3, "name" : "localhost:28013", "health" : 1, "state" : 2, "stateStr" : "SECONDARY", "uptime" : 23, "optime" : Timestamp(1354334590000, 1), "optimeDate" : ISODate("2012-12-01T04:03:10Z"), "lastHeartbeat" : ISODate("2012-12-01T04:03:59Z"), "pingMs" : 1058 } ], "ok" : 1} 本文完！
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