MongoDB cluster Upgrade (2.6.7-3.0.3)

MongoDB 3.0 was officially released on March 3, 2015. It is no exaggeration to say that this version of the new feature marks MongoDB This typical NoSQL database has entered a new stage of development.

New features in version 3.0:

Plug-in storage engine API

Wiredtiger Storage Engine

MMAPV1 Storage Engine boost

Replication Set Improvements

Shard Cluster Improvements

Official Document: http://docs.mongodb.org/manual/release-notes/3.0/

As a result of the 3.0 new features, we decided to upgrade mongodb-3.0.3

First, local testing

summary: Note eventually you still need to stop mongos and configdb ( mongos and configdb also need to upgrade, stop for a few minutes) **

Mongo-2.6.7 data Upgrade (import) is Mongo-3.0.3 . The data is shown to be less than the old version, and the new engine data is compressed.

1.Local test machine test

test machine: 192.168.5.66

System Version : centos6.5_64-2.6.32 Mongodb version:

test Machine One Start different ports One mongos one configdb two shards 2 quorum nodes

Port assignment:

Shards 1 :

Shard1 (main): 192.168.5.66:27001

Shard11 (Replica set): 192.168.5.66:27011

arbiter1 ( weight ) : 192.168.5.66:27000

Shards 2:

Shard2 ( master ): 192.168.5.66:27002

Shaed22 (replica set) : 192.168.5.66:27022

arbiter2 ( weight ): 192.168.5.66:27222

mongos:192.168.5.66:27111

configdb:192.168.5.66:27100

2. Configuring mongodb-2.6.7 clusters

Shard Configuration:

Shard 1:

Config = {_id: "Replset1", members:[

{_id:0,host: "192.168.5.66:27001", priority:1},

{_id:1,host: "192.168.5.66:27011", Priority:2},

{_id:2,host: "192.168.5.66:27000", arbiteronly:true},

]

}

rs.initiate (config);// Update Configuration

rs.status ()// View configuration Information

Shards 2 :

Config = {_id: "Replset2", members:[

{_id:0,host: "192.168.5.66:27002", priority:1},

{_id:1,host: "192.168.5.66:27022", Priority:2},

{_id:2,host: "192.168.5.66:27222", arbiteronly:true},

]

}

rs.initiate (config); Update Configuration

rs.status ()// View configuration Information

MONGOs To Add routing information:

Db.runcommand ({addshard: "replset1/192.168.5.66:27001,192.168.5.66:27011"});

Db.runcommand ({addshard: "replset2/192.168.5.66:27002,192.168.5.66:27022"});

Use admin

printshardingstatus ()// Viewing shard information

3. Adding data manually

Use TESTAPM

For (var i= 1; I <=; i++) Db.haha.save ({tid:i,name: "username" +i,age:i});

For (var i= 1; I <=; i++) Db.table1.save ({tid:i,name: "username" +i,age:i});

For (var i= 1; I <=; i++) Db.table2.save ({tid:i,name: "username" +i,age:i});

Use crash

For (var i= 1; I <=; i++) Db.tab1.save ({tid:i,name: "username" +i,age:i});

For (var i= 1; I <=; i++) Db.tab2.save ({tid:i,name: "username" +i,age:i});

For (var i= 1; I <=; i++) Db.table3.save ({tid:i,name: "username" +i,age:i});

This article is from the "MongoDB Upgrade 3.0" blog, make sure to keep this source http://jiachen.blog.51cto.com/3296673/1677138

MongoDB cluster Upgrade (2.6.7-3.0.3)