MongoDB cluster creation

There is only one Ubuntu machine. The configuration scheme is as follows:
1. Three sharding parts
2. Each shard consists of three nodes: 1 master and 2 slave replica sets.
3. configsever

4. One routing node mongos

Shard server: mongod instance, used to store actual data blocks. In the actual production environment, a role of shard server can be assumed by one relica set of several machines to prevent single point of failure (spof) on the host.

Config server: mongod instance, which stores the entire cluster metadata, including chunk information.

Route server: A mongos instance, with frontend routing and access from the client. It makes the entire cluster look like a single database, and front-end applications can be used transparently.

Create a data directory And a log directory

Data/A/R0
Data/A/r1
Data/A/R2
Data/B/R0
Data/B/r1
Data/B/R2
Data/C/R0
Data/C/r1
Data/C/R2
Data/configsvr/R0
Data/configsvr/r1
Data/configsvr/R2

Create a log file directory:

Data/log/
Data/log/B
Data/log/C
Data/log/configsvr

Create shard and replica set

First group

/Usr/opensource/mongodb-linux-i686-2.0.2/bin $. /mongod-logpath .. /.. /data/log/A/rc0.log -- dbpath .. /.. /data/A/RC0 -- logappend -- port 10000 -- shardsvr -- replset Seta -- rest

/Usr/opensource/mongodb-linux-i686-2.0.2/bin $. /mongod-logpath .. /.. /data/log/A/rc1.log -- dbpath .. /.. /data/A/RC1 -- logappend -- port 10001 -- shardsvr -- replset Seta -- rest

/Usr/opensource/mongodb-linux-i686-2.0.2/bin $. /mongod-logpath .. /.. /data/log/A/rc2.log -- dbpath .. /.. /data/A/RC2 -- logappend -- Port 10002 -- shardsvr -- replset Seta -- rest

Create a replica set after creating a shard

./Mongo -- port 10000

> Config = {_ ID: "Seta", members: [{_ ID: 0, host: "127.0.0.1: 10000" },{ _ ID: 1, host: "127.0.0.1: 10001 "},{ _ ID: 2, host:" 127.0.0.1: 10002 "}]}

Rs. Initiate (config)

Second part

/Usr/opensource/mongodb-linux-i686-2.0.2/bin $. /mongod-logpath .. /.. /data/log/B/rc0.log -- dbpath .. /.. /data/B/RC0 -- logappend -- port 20000 -- shardsvr -- replset SETB -- rest

/Usr/opensource/mongodb-linux-i686-2.0.2/bin $. /mongod-logpath .. /.. /data/log/B/rc1.log -- dbpath .. /.. /data/B/RC1 -- logappend -- Port 20001 -- shardsvr -- replset SETB -- rest

/Usr/opensource/mongodb-linux-i686-2.0.2/bin $. /mongod-logpath .. /.. /data/log/B/rc2.log -- dbpath .. /.. /data/B/RC2 -- logappend -- Port 20002 -- shardsvr -- replset SETB -- rest

Create a replica set

./Mongo -- port 20000

> Config = {_ ID: "SETB", members: [{_ ID: 0, host: "127.0.0.1: 20000" },{ _ ID: 1, host: "127.0.0.1: 20001 "},{ _ ID: 2, host:" 127.0.0.1: 20002 "}]}

Rs. Initiate (config)

Third Component

/Usr/opensource/mongodb-linux-i686-2.0.2/bin $. /mongod-logpath .. /.. /data/log/C/rc0.log -- dbpath .. /.. /data/C/RC0 -- logappend -- Port 30000 -- shardsvr -- replset SETC -- rest

/Usr/opensource/mongodb-linux-i686-2.0.2/bin $. /mongod-logpath .. /.. /data/log/C/rc1.log -- dbpath .. /.. /data/C/RC1 -- logappend -- Port 30001 -- shardsvr -- replset SETC -- rest

/Usr/opensource/mongodb-linux-i686-2.0.2/bin $. /mongod-logpath .. /.. /data/log/C/rc2.log -- dbpath .. /.. /data/C/RC2 -- logappend -- Port 30002 -- shardsvr -- replset SETC -- rest

Create a replication group

./Mongo -- Port 30000

> Config = {_ ID: "SETC", members: [{_ ID: 0, host: "127.0.0.1: 30000" },{ _ ID: 1, host: "127.0.0.1: 30001 "},{ _ ID: 2, host:" 127.0.0.1: 30002 "}]}

Start configsvr for three Configuration Service nodes

/Usr/opensource/mongodb-linux-i686-2.0.2/bin $. /mongod -- configsvr -- logpath .. /.. /data/log/configsvr/rc0.log -- dbpath .. /.. /data/configsvr/RC0 -- logappend
-- Port 40000 -- shardsvr

/Usr/opensource/mongodb-linux-i686-2.0.2/bin $. /mongod -- configsvr -- logpath .. /.. /data/log/configsvr/rc1.log -- dbpath .. /.. /data/configsvr/RC1 -- logappend
-- Port 40001 -- shardsvr

/Usr/opensource/mongodb-linux-i686-2.0.2/bin $. /mongod -- configsvr -- logpath .. /.. /data/log/configsvr/rc2.log -- dbpath .. /.. /data/configsvr/RC2 -- logappend
-- Port 40002 -- shardsvr

Start a route Node

/Usr/opensource/mongodb-linux-i686-2.0.2/bin $./mongos -- configdb 127.0.0.1: 40000,127.0 .0.1: 40001,127.0 .0.1: 40002 -- logpath.../data/log/mongos. log -- logappend
-- Port 50000

Set parts

./Mongo 127.0.0.1: 50000

Switch to Admin

Mongos> Use Admin

DB. runcommand ({addshard: "Seta/127.0.0.1: 10000,127.0 .0.1: 10001,127.0 .0.1: 10002", name: "shardseta "})

DB. runcommand ({addshard: "SETB/127.0.0.1: 20000,127.0 .0.1: 20001,127.0 .0.1: 20002", name: "shardsetb "})

DB. runcommand ({addshard: "SETB/127.0.0.1: 20000,127.0 .0.1: 20001,127.0 .0.1: 20002", name: "shardsetb "})

View results

Printshardingstatus ();

Configuration complete