MongoDB master-slave replica set configuration

To create a path:

mkdir  -p  /datassd/mongo_20011/ {data,conf,log}  

Example configuration file:

#mongo.conf dbpath= /datassd/mongo/data/ logpath= /datassd/mongo_20011/log/mongo_20011 .log pidfilepath= /datassd/mongo_20011/mongo_20011 .pid directoryperdb= true logappend= true replSet=testrs port=20011 oplogSize=10000 fork= true noprealloc= true

Parameter explanation:

DBPath: Data Storage Directory

LogPath: Log Storage path

Pidfilepath: Process files, easy to stop MongoDB

Directoryperdb: Set up a folder for each database according to the database name

Logappend: Logging in Append mode

Replset:replica Set's name

IP address that is bound by Bind_ip:mongodb

The port number used by the PORT:MONGODB process, which defaults to 20011

Oplogsize:mongodb the maximum size of the operation log file. The unit is MB, which defaults to 5% of the remaining space on the hard disk. Shard scenes can only be fragmented if they exceed this size

Fork: Run the process in the next stage mode

Noprealloc: No pre-allocated storage

Reference configuration:

Master
config={_id: ' Shard1 ', members:[{_id:0,host: ' 10.2.1.61:20011 '},{_id:1,host: ' 10.2.2.13:20011 '},{_id:2,host: ' 10.2.2.31:20011 ', Arbiteronly:true}]}

#双节点情况下需要有仲裁节点才能实现故障转移, it is also possible to replace the quorum node with another one from

Master
Rs.initiate (config)

#db. Printreplicationinfo ()

#rs. Status ()

Slave
#rs. Slaveok ()

To add a delete node:

Rs.add ("Ip:port")

Rs.remove ("Ip:port")

MongoDB master-slave replica set configuration