Mongodb Master/Slave Configuration

I. Configure mongodb Master/Slave using the command line

 
 

  
  
[root@server11 ~]#  /usr/local/mongodb/bin/mongod --bind_ip 192.168.1.112 -port 3306 --dbpath /data/mongodb/db1/ --logpath /usr/local/mongodb/logs/server1.log  --rest --master & 
  
  
[1] 14449 
  
  
  
  
  
[root@server12 ~]#  /usr/local/mongodb/bin/mongod --bind_ip 192.168.1.113 --port 3306 --dbpath /data/mongodb/db2/ --logpath /usr/local/mongodb/logs/server2.log  --rest --slave --source 192.168.1.112:3306 & 
  
  
[1] 16853 
 
 

Ii. Connection Test Data Synchronization

 
 

  
  
[root@server11 ~]# /usr/local/mongodb/bin/mongo 192.168.1.112:3306 
  
  
MongoDB shell version: 2.2.2 
  
  
connecting to: 192.168.1.112:3306/test 
  
  
> use test 
  
  
switched to db test 
  
  
> db.test.save({b:2}) 
  
  
> db.test.find() 
  
  
{ "_id" : ObjectId("50fcb7f05712bfb21c866dc6"), "a" : 1 } 
  
  
{ "_id" : ObjectId("50fcdccf252ef3433457646f"), "b" : 2 } 
  
  
 
  
  
[root@server12 ~]# /usr/local/mongodb/bin/mongo 192.168.1.113:3306 
  
  
MongoDB shell version: 2.2.2 
  
  
connecting to: 192.168.1.113:3306/test 
  
  
> use test 
  
  
switched to db test 
  
  
> db.test.find() 
  
  
{ "_id" : ObjectId("50fcb7f05712bfb21c866dc6"), "a" : 1 } 
  
  
{ "_id" : ObjectId("50fcdccf252ef3433457646f"), "b" : 2 } 
 
 

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3. Create a repl user for subsequent Security Authentication Synchronization

 
 

  
  
[root@server11 ~]#  /usr/local/mongodb/bin/mongo 192.168.1.112:3306 
  
  
> use local 
  
  
switched to db local 
  
  
> db.addUser('repl','replication') 
  
  
{ 
  
  
        "user" : "repl", 
  
  
        "readOnly" : false, 
  
  
        "pwd" : "418b80a28664aeaeb1ec8bf792ea3052", 
  
  
        "_id" : ObjectId("50fce98cc4553449b56c6e9f") 
  
  
} 
  
  
 
  
  
[root@server12 ~]#  /usr/local/mongodb/bin/mongo 192.168.1.113:3306 
  
  
> use local 
  
  
switched to db local 
  
  
> db.addUser('repl','replication') 
  
  
{ 
  
  
        "user" : "repl", 
  
  
        "readOnly" : false, 
  
  
        "pwd" : "418b80a28664aeaeb1ec8bf792ea3052", 
  
  
        "_id" : ObjectId("50fce98cc4553449b56c6e9f") 
  
  
} 
 
 

4. Create a common user, yang, and master.

 
 

  
  
> use admin 
  
  
switched to db admin 
  
  
> db.addUser('yang','123') 
  
  
> show users 
  
  
{ 
  
  
        "_id" : ObjectId("50fce0bd15861bedf081584a"), 
  
  
        "user" : "yang", 
  
  
        "readOnly" : false, 
  
  
        "pwd" : "c26040a2869fb7579c83e85c54faaffa" 
  
  
} 
  
  
 
  
  
> db.system.users.find() 
  
  
{ "_id" : ObjectId("50fce0bd15861bedf081584a"), "user" : "yang", "readOnly" : false, "pwd" : "c26040a2869fb7579c83e85c54faaffa" } 
 
 

5. Restart the mongodb Master/Slave instance and start it in auth mode. The user logs on to the instance for testing.

 
 

  
  
[root@server11 ~]# /usr/local/mongodb/bin/mongod --bind_ip 192.168.1.112 --auth --port 3306 --dbpath /data/mongodb/db1/ --logpath /usr/local/mongodb/logs/server1.log  
  
  
 
  
  
 --rest --master & 
  
  
[root@server12 ~]# /usr/local/mongodb/bin/mongod --bind_ip 192.168.1.113 --auth --port 3306 --dbpath /data/mongodb/db2/ --logpath /usr/local/mongodb/logs/server2.log  
  
  
 
  
  
 --rest --slave --source 192.168.1.112:3306 & 
  
  
[root@server11 ~]# /usr/local/mongodb/bin/mongo 192.168.1.112:3306 
  
  
MongoDB shell version: 2.2.2 
  
  
connecting to: 192.168.1.112:3306/test 
  
  
> use admin 
  
  
switched to db admin 
  
  
 
  
  
> show users 
  
  
Mon Jan 21 14:42:47 uncaught exception: error: { 
  
  
        "$err" : "unauthorized db:test ns:test.system.users lock type:1 client:192.168.1.112", 
  
  
        "code" : 10057 
  
  
} 
  
  
 
  
  
> db.auth('yang','123') 
  
  
1 
  
  
 
  
  
> show users 
  
  
{ 
  
  
        "_id" : ObjectId("50fce0bd15861bedf081584a"), 
  
  
        "user" : "yang", 
  
  
        "readOnly" : false, 
  
  
        "pwd" : "c26040a2869fb7579c83e85c54faaffa" 
  
  
} 
 
 

To log on to the web page again, enter the user name and password!

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V. Using configuration files to manage mongodb

 
 

  
  
[root@server11 ~]# cat /etc/mongodb.conf  
  
  
fork = true 
  
  
quiet = true 
  
  
bind_ip = 192.168.1.112 
  
  
port = 3306 
  
  
dbpath = /data/mongodb/db1 
  
  
logpath = /usr/local/mongodb/logs/server1.log 
  
  
logappend = true 
  
  
journal = true 
  
  
rest = true 
  
  
master= true 
  
  
auth = true 
  
  
 
  
  
[root@server11 ~]# /usr/local/mongodb/bin/mongod -f /etc/mongodb.conf  
  
  
all output going to: /usr/local/mongodb/logs/server1.log 
  
  
forked process: 5831 
  
  
child process started successfully, parent exiting 
  
  
 
  
  
[root@server11 ~]# netstat -ntpl |grep mongo 
  
  
tcp        0      0 192.168.1.112:3306          0.0.0.0:*                   LISTEN      5831/mongod          
  
  
tcp        0      0 192.168.1.112:4306          0.0.0.0:*                   LISTEN      5831/mongod 
  
  
 
  
  
[root@server12 ~]# cat /etc/mongodb.conf  
  
  
fork = true 
  
  
quiet = true 
  
  
bind_ip = 192.168.1.113 
  
  
port = 3306 
  
  
dbpath = /data/mongodb/db2 
  
  
logpath = /usr/local/mongodb/logs/server2.log 
  
  
logappend = true 
  
  
journal = true 
  
  
rest = true 
  
  
slave = true 
  
  
source = 192.168.1.112:3306 
  
  
auth = true 
  
  
 
  
  
[root@server12 ~]# /usr/local/mongodb/bin/mongod -f /etc/mongodb.conf  
  
  
all output going to: /usr/local/mongodb/logs/server2.log 
  
  
forked process: 3064 
  
  
child process started successfully, parent exiting 
  
  
 
  
  
[root@server11 ~]# /usr/local/mongodb/bin/mongod -f /etc/mongodb.conf  --shutdown 
  
  
[root@server12 ~]# /usr/local/mongodb/bin/mongod -f /etc/mongodb.conf  --shutdown 
 
 

Reference: http://docs.mongodb.org/manual/administration/master-slave/

This article is from the "Bo Yue" blog and will not be reproduced!