1.增加新的配置文件,并启动mongod实例
#14 mkdir -p /data/mongodb/shard311 ./mongod -f /opt/mongodb-linux-x86_64-2.2.0/conf/mongod_3.conf #16 mkdir -p /data/mongodb/shard32 ./mongod -f /opt/mongodb-linux-x86_64-2.2.0/conf/mongod_3.conf #23 mkdir -p /data/mongodb/shard33 ./mongod -f /opt/mongodb-linux-x86_64-2.2.0/conf/mongod_3.conf
2.步骤2 初始化 set 集群
/opt/mongodb-linux-x86_64-2.2.0/bin/mongo -port 10003 config = {_id: 'shard3', members: [ {_id: 0, host: '192.168.1.14:10003', priority:1}, {_id: 1, host: '192.168.1.16:10003'}, {_id: 2, host: '192.168.1.23:10003'}]}; rs.initiate(config);
3.增加shard
/opt/mongodb-linux-x86_64-2.2.0/bin/mongo 192.168.1.14:10000/admin db.runCommand( { addshard : "shard3/192.168.1.14:10003,192.168.1.16:10003,192.168.1.23:10003", name:"shard3", maxsize:20480, allowLocal:true } );
4.移除shard
db.runCommand({"removeshard" : "shard3/192.168.1.14:10003,192.168.1.16:10003,192.168.1.23:10003"});
注意:
三台服务器clock不同步导致不能分片的问题,今天又碰见一次,同步后就好了。这个问题是不是有点太频繁了,难道每天定时要同步三台服务器的clock?
移除shard的时候时间会比较久,这时候 printShardingStatus()的时候会显示状态”draining” : true.