环境介绍:
192.168.1.250 主 port=27408
192.168.1.250 仲裁 port=27409
192.168.1.251 备 port=27408
[root@HE4 ~]# tar xvf mongodb-linux-x86_64-2.6.10.tgz
[root@HE4 ~]# mkdir -p /export/mongodb
[root@HE4 ~]# mkdir -p /export/mongodb/bin
[root@HE4 ~]# mkdir -p /export/mongodb/conf
[root@HE4 ~]# mkdir -p /export/mongodb/log
[root@HE4 ~]# mkdir -p /export/mongodb/data
[root@HE4 bin]# cd /root/mongodb-linux-x86_64-2.6.10/bin
[root@HE4 bin]# cp /root/mongodb-linux-x86_64-2.6.10/bin/* /export/mongodb/bin/
[root@HE1 bin]# vi /export/mongodb/conf/mongod.conf
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | port=27408 dbpath= /export/mongodb/data logpath= /export/mongodb/log/mongod .log fork= true logappend= true keyFile= /export/mongodb/key/mongod nohttpinterface= true replSet=shard1 [root@HE1 bin] # vi /export/mongodb/conf/arbiter.conf port=27409 dbpath= /export/mongodb/arbiter logpath= /export/mongodb/log/arbiter .log fork= true logappend= true keyFile= /export/mongodb/key/arbiter nohttpinterface= true replSet=shard1 |
keyfile文件包括:
mongod,arbiter
创建一个生成keyfile的脚本
vi create_key.sh
1 2 3 4 5 | cat /dev/urandom | LC_ALL=C tr - dc "[:alnum:]" | fold -w 10 | head -1 > /tmp/key .txt keystring=` cat /tmp/key .txt` echo $keystring > /export/mongodb/key/mongod echo $keystring > /export/mongodb/key/arbiter chmod 600 /export/mongodb/key/ * |
启动服务器在主
[root@HE3 ~]#/export/mongodb/bin/mongod -f /export/mongodb/conf/mongod.conf
[root@HE3 ~]# /export/mongodb/bin/mongod -f /export/mongodb/conf/arbiter.conf
在从
[root@HE4 ~]#/export/mongodb/bin/mongod -f /export/mongodb/conf/mongod.conf
>config={_id:'shard1',members:[{_id:0,host:'192.168.1.248:27408'},{_id:1,host:'192.168.1.249:27408'},{_id:2,host:'192.168.1.248:27409',arbiterOnly:true}]}
>rs.initiate(config)
初始化rs.initiate(config),config是之前定义的名
主备库配置好后,备库查询
1 2 3 4 5 6 7 | shard1:SECONDARY> use test switched to db test shard1:SECONDARY> db.t1.find() error: { "$err" : "not master and slaveOk=false" , "code" : 13435 } shard1:SECONDARY> rs.slaveOk() shard1:SECONDARY> db.t1.find() { "_id" : ObjectId( "5704c11d3e0651733bfdea23" ), "x" : 1 } |
rs.stauts()可以看状态,health:1代表健康,stateStr谁是我们的仲裁
想让主库降级成从库,rs.stepDown()
本文出自 “岁伏” 博客,请务必保留此出处http://suifu.blog.51cto.com/9167728/1853478