MongoDB Shard Deployment

Mongodb Shard Deployment

Configure a MongoDB cluster, such as a MongoDB cluster with 3 shard configured on 3 servers:

Architecture:

1. Each piece of data requires 3 Mongod server,2 primary from the data node, 1 is the quorum node (arbiter), and no data is stored. Altogether three pieces, can be made:

   20.220-mongo1:   20001(SH1 master),20002(Sh2 from),20003(SH3 arbitration)      20.221-mongo2:   20002(SH2 master),20003(SH3 from),20001(SH1 arbitration)     20.222-mongo3:   20003(SH3 master),20001(SH1),20002

2. Requires 3 mongod config server, log in 3 machines to perform the following

 20.220 -mongo1: 19999   echo   "  " >>/etc/profiletar ZXVF MongoDB -linux-x86_64-2.6 . 0  .tgzmv mongodb -linux-x86_64-0 /usr/local/mongodbmkdir -p/usr/local/mongodb/{ETC,DATE,LOG}CD /usr/local/mongodb/datemkdir Sh1mkdir sh2mkdir Sh3mkdir Cf1mkdir Cf2mkdir CF3  

 20.221 -mongo2: 19998   echo   "  " >>/etc/profiletar ZXVF MongoDB -linux-x86_64-2.6 . 0  .tgzmv mongodb -linux-x86_64-0 /usr/local/mongodbmkdir -p/usr/local/mongodb/{ETC,DATE,LOG}CD /usr/local/mongodb/datemkdir Sh1mkdir sh2mkdir Sh3mkdir Cf1mkdir Cf2mkdir CF3  

20.222 19997 ' Export path= $PATH:/usr/local/mongodb/bin' >>/etc/profiletar       ZXVF MongoDB-linux-x86_64-2.6. 0 . TGZMV MongoDB-linux-x86_64-2.6. 0 /usr/local/-p/usr/local/mongodb//usr/local/mongodb/datemkdir sh1mkdir Sh2mkdir sh3mkdir cf1mkdir cf2mkdir cf3

3. MONGOs server as a portal

192.168. 20.220 20000

1. Start Mongod Datanode Service

40000 20001 40000 20002 40000 20003

2. Configure each piece of replica set, that is, each 3 units with a replica set mutual preparation

20.220-192.168. 20.220:20001/adminuse admin;

 config = {_id:  " sh1   '   

// Initialize REPL set

Rs.status ()   // See if the results have been successfully completed REPL set

20.221-192.168. 20.221:20002/adminuse admin;

 config = {_id:  " sh2   '   

// Initialize REPL set

Rs.status ()   // See if the results have been successfully completed REPL set

20.222-192.168. 20.222:20003/

 config = {_id:  " sh3   '   

// Initialize REPL set

Rs.status ()   // See if the results have been successfully completed REPL set

3. Execute Start config server:

19999 --dbpath/usr/local/mongodb/date/cf1/--logpath/usr/local/mongodb/log/cf1.log20.221 -mongo219998 --dbpath/usr/local/mongodb/date/cf2/--logpath/usr/local/mongodb/log/  Cf2.log20.222-mongo319997

4. Start MONGOs Server

192.168. 20.220:19999,192.168. 20.221:19998,192.168. 20.222:1999720000

5. Configuring the MONGO Shard Cluster

192.168. 20.220:20000/admin

Mongos> Db.runcommand ({addshard:"sh1/192.168.20.220:20001,192.168.20.221:20001", Name:"sh1"});

Mongos> Db.runcommand ({addshard:"sh2/192.168.20.221:20002,192.168.20.222:20002", Name:"sh2"});

Mongos> Db.runcommand ({addshard:"sh3/192.168.20.222:20003,192.168.20.220:20003", Name:"sh3"});

Mongos> Db.runcommand ({listshards:1})

6. Activating database Shards

Login MONGOs:

>use admin;

" dbname " } );

>db.runcommand ({shardcollection: "Dbname.collectionname", key: {"Keyfield": 1}});

Note the Keyfield required for sharding is the table index.

Sh.enablesharding ("dbname")

MongoDB Shard Deployment