Detailed explanation of MongoDB cluster fragment configuration

Create the necessary file directory

Mkdir-p/usr/local/mongo/shard/s0

Mkdir-p/usr/local/mongo/shard/s1

Mkdir-p/USR/LOCAL/MONGO/SHARD/S2

Mkdir-p/usr/local/mongo/shard/log

Mongod--shardsvr--port 20000--dbpath=/usr/local/mongo/shard/s0--fork --directoryperdb

Mongod--shardsvr--port 20001--dbpath=/usr/local/mongo/shard/s1--fork --directoryperdb

Mongod--shardsvr--port 20002--dbpath=/usr/local/mongo/shard/s2--fork --directoryperdb

#Configure Config Server

Mkdir-p/usr/local/mongo/shard/config

Mongod--configsvr--port 30000--dbpath=/usr/local/mongo/shard/config--fork Config.log--directoryperdb

#Start Router Server

MONGOs--port 40000--configdb localhost:30000--fork

Mongos> Db.runcommand ({addshard: "localhost:20000"})

{"shardadded": "shard0000", "OK": 1}

Mongos> Db.runcommand ({addshard: "localhost:20001"})

{"shardadded": "shard0001", "OK": 1}

Mongos> Db.runcommand ({enablesharding: "Andylhz"})

{"OK": 1}

Mongos> Db.runcommand ({shardcollection: "Andylhz.users", Key:{_id:1}})

{"collectionsharded": "Andylhz.users", "OK": 1}