몽고DB master/slave

1. 마스터 만들기

mongod -dbpath /Users/User/Desktop/비트전문가과정/repl1/master --master -port 10001

mongo localhost:10001

show dbs

db.printReplicationInfo()

configured oplog size:   192MB
log length start to end: 317secs (0.09hrs)
oplog first event time:  Sat Jul 27 2013 11:50:16 GMT+0900 (KST)
oplog last event time:   Sat Jul 27 2013 11:55:33 GMT+0900 (KST)
now:                     Sat Jul 27 2013 11:55:36 GMT+0900 (KST)

db.printSlaveReplicationInfo()

local.sources is empty; is this db a --slave?

db.printShardingStatus()

2. slave1, 2 만들기

mongod -dbpath /Users/User/Desktop/비트전문가과정/repl1/slave1 --slave -port 10002 --source localhost:10001

mongod -dbpath /Users/User/Desktop/비트전문가과정/repl1/slave2 --slave -port 10003 --source localhost:10001

3. REPL로 작업하고 확인하기

//slave1 

mongo localhost:10002

db.printSlaveReplicationInfo()

source:   localhost:10001
     syncedTo: Sat Jul 27 2013 12:09:53 GMT+0900 (KST)
         = 74 secs ago (0.02hrs)
> ^C
bye

//slave2

mongo localhost:10003

db.printSlaveReplicationInfo()

source:   localhost:10001
     syncedTo: Sat Jul 27 2013 12:09:53 GMT+0900 (KST)
         = 74 secs ago (0.02hrs)
> ^C
bye

//master

mongo localhost:10001

db.printSlaveReplicationInfo()

local.sources is empty; is this db a --slave?

- master에 데이터 넣고 master에서 save한것이 slave로 복제되는지 확인하기 

//master

use hellomaster

db.emp.({name:'honggildong',age:22})

db.emp.find()

{ "_id" : ObjectId("51f33a81dbed34cf65d102d0"), "name" : "honggildong", "age" : 22 }
> show dbs
config    (empty)
dowon    0.203125GB
local    0.328125GB
> ^C
bye

//slave1

mongo localhost:10002

rs.slaveOk()

show dbs

use hellomaster

show collection

db.emp.find()

{ "_id" : ObjectId("51f33a81dbed34cf65d102d0"), "name" : "honggildong", "age" : 22 }