Shulou(Shulou.com)06/01 Report--

Environment introduction:

192.168.1.250 Master port=27408

192.168.1.250 Arbitration port=27409

192.168.1.251 standby 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 Candle * / export/mongodb/bin/

[root@HE1 bin] # vi / export/mongodb/conf/mongod.conf

Port=27408dbpath=/export/mongodb/datalogpath=/export/mongodb/log/mongod.logfork=truelogappend=truekeyFile=/export/mongodb/key/mongodnohttpinterface=truereplSet=shard1 [root@HE1 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 files include:

Mongod,arbiter

Create a script that generates keyfile

Vi create_key.sh

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/*

Start the server in the master

[root@HE3] # / export/mongodb/bin/mongod-f / export/mongodb/conf/mongod.conf

[root@HE3] # / export/mongodb/bin/mongod-f / export/mongodb/conf/arbiter.conf

From

[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)

Initialize rs.initiate (config), config is the name previously defined

After the master and backup database is configured, query the standby database.

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 () can look at the status, health:1 stands for health, stateStr who is our arbitration

If you want to downgrade the master library to a slave library, rs.stepDown ()

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