MongoDB複製集環境搭建

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環境介紹：

192.168.1.250 主  port=27408

192.168.1.250 仲裁 port=27409

192.168.1.251 備  port=27408

 

 

[[email protected] ~]# tar xvf mongodb-linux-x86_64-2.6.10.tgz

[[email protected] ~]# mkdir -p /export/mongodb

[[email protected] ~]# mkdir -p /export/mongodb/bin

[[email protected] ~]# mkdir -p /export/mongodb/conf

[[email protected] ~]# mkdir -p /export/mongodb/log

[[email protected] ~]# mkdir -p /export/mongodb/data

[[email protected] bin]# cd /root/mongodb-linux-x86_64-2.6.10/bin

[[email protected] bin]# cp /root/mongodb-linux-x86_64-2.6.10/bin/* /export/mongodb/bin/

[[email protected] bin]# vi /export/mongodb/conf/mongod.conf

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port=27408dbpath=/export/mongodb/datalogpath=/export/mongodb/log/mongod.logfork=truelogappend=truekeyFile=/export/mongodb/key/mongodnohttpinterface=truereplSet=shard1[[email protected] bin]# vi /export/mongodb/conf/arbiter.confport=27409dbpath=/export/mongodb/arbiterlogpath=/export/mongodb/log/arbiter.logfork=truelogappend=truekeyFile=/export/mongodb/key/arbiternohttpinterface=truereplSet=shard1

 

keyfile檔案包括:

mongod，arbiter

 

建立一個產生keyfile的指令碼

vi create_key.sh

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cat /dev/urandom | LC_ALL=C tr -dc "[:alnum:]" | fold -w 10 |head -1 >/tmp/key.txtkeystring=`cat /tmp/key.txt`echo $keystring >/export/mongodb/key/mongodecho $keystring >/export/mongodb/key/arbiterchmod 600 /export/mongodb/key/*

 

啟動伺服器在主

[[email protected] ~]#/export/mongodb/bin/mongod -f /export/mongodb/conf/mongod.conf

[[email protected] ~]# /export/mongodb/bin/mongod -f /export/mongodb/conf/arbiter.conf

在從

[[email protected] ~]#/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是之前定義的名

 

主備庫配置好後，備庫查詢

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shard1:SECONDARY> use testswitched to db testshard1: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()可以看狀態，health:1代表健康，stateStr誰是我們的仲裁

想讓主庫降級成從庫，rs.stepDown()

 

本文出自 “歲伏” 部落格，請務必保留此出處http://suifu.blog.51cto.com/9167728/1853478

MongoDB複製集環境搭建