基于CentOS7实现MongoDB分片群集

骞没蕴

mongos> db.createCollection('users')　　{ "ok" : 1 }
　　mongos> show collections
　　system.indexes
　　users
　　mongos> exit
　　bye
　　[root@localhost bin]# mongo
　　MongoDB shell version: 3.2.1
　　connecting to: test
　　Server has startup warnings:
　　2018-07-18×××4:52:06.622+0800 I CONTROL  [main] ** WARNING: You are running this process as the root user, which is not recommended.
　　2018-07-18×××4:52:06.622+0800 I CONTROL  [main]
　　mongos> show dbs
　　config  0.031GB
　　kgc     0.078GB
　　mongos> for (var i=1;i show tables
　　system.indexes
　　users
　　mongos> db.users.find() #查看信息
　　{ "_id" : ObjectId("5b4ef398b83d741f7c50491a"), "id" : 1, "name" : "zhang" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c50491b"), "id" : 1, "name" : "jaap1" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c50491c"), "id" : 1, "name" : "jaap2" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c50491d"), "id" : 1, "name" : "jaap3" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c50491e"), "id" : 1, "name" : "jaap4" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c50491f"), "id" : 1, "name" : "jaap5" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c504920"), "id" : 1, "name" : "jaap6" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c504921"), "id" : 1, "name" : "jaap7" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c504922"), "id" : 1, "name" : "jaap8" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c504923"), "id" : 1, "name" : "jaap9" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c504924"), "id" : 1, "name" : "jaap10" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c504925"), "id" : 1, "name" : "jaap11" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c504926"), "id" : 1, "name" : "jaap12" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c504927"), "id" : 1, "name" : "jaap13" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c504928"), "id" : 1, "name" : "jaap14" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c504929"), "id" : 1, "name" : "jaap15" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c50492a"), "id" : 1, "name" : "jaap16" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c50492b"), "id" : 1, "name" : "jaap17" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c50492c"), "id" : 1, "name" : "jaap18" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c50492d"), "id" : 1, "name" : "jaap19" }
　　Type "it" for more
　　mongos> db.users.find().limit(5)  #查看指定信息
　　{ "_id" : ObjectId("5b4ef398b83d741f7c50491a"), "id" : 1, "name" : "zhang" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c50491b"), "id" : 1, "name" : "jaap1" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c50491c"), "id" : 1, "name" : "jaap2" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c50491d"), "id" : 1, "name" : "jaap3" }
　　{ "_id" : ObjectId("5b4ef407b83d741f7c50491e"), "id" : 1, "name" : "jaap4" }
　　mongos> sh.status()  #查看数据库分片信息
　　--- Sharding Status ---
　　sharding version: {
　　"_id" : 1,
　　"minCompatibleVersion" : 5,
　　"currentVersion" : 6,
　　"clusterId" : ObjectId("5b4ee3961c914459f603260f")
　　}
　　shards:
　　{  "_id" : "shard0000",  "host" : "192.168.32.207:47018" }
　　{  "_id" : "shard0001",  "host" : "192.168.32.207:47017" }
　　active mongoses:
　　"3.2.1" : 1
　　balancer:
　　Currently enabled:  yes
　　Currently running:  no
　　Failed balancer rounds in last 5 attempts:  0
　　Migration Results for the last 24 hours:
　　No recent migrations
　　databases:
　　{  "_id" : "kgc",  "primary" : "shard0000",  "partitioned" : false }