基于CentOS7实现MongoDB分片群集
mongos> db.createCollection('users') { "ok" : 1 }mongos> show collections
system.indexes
users
mongos> exit
bye
# mongo
MongoDB shell version: 3.2.1
connecting to: test
Server has startup warnings:
2018-07-18×××4:52:06.622+0800 I CONTROL ** WARNING: You are running this process as the root user, which is not recommended.
2018-07-18×××4:52:06.622+0800 I CONTROL
mongos> show dbs
config0.031GB
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 }
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