mongodb在线添加移除新的分片复制集Word文件下载.docx

mongodb在线添加移除新的分片复制集Word文件下载.docx

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36?

00:

00/usr/local/mongodb-linux-x86_64-2.4.4/bin/mongod--shardsvr--replSetshard3--port37017--dbpath/data/mongodb/shard37017--oplogSize2048--logpath/data/mongodb/logs/shard_m2_37017.log--logappend--fork

mongodb564211021:

00/usr/local/mongodb-linux-x86_64-2.4.4/bin/mongod--shardsvr--replSetshard3--port37027--dbpath/data/mongodb/shard37027--oplogSize2048--logpath/data/mongodb/logs/shard_m2_37027.log--logappend--fork

mongodb5647352722121:

36pts/000:

00/usr/local/mongodb-linux-x86_64-2.4.4/bin/mongod--shardsvr--replSetshard3--port37037--dbpath/data/mongodb/shard37037--oplogSize2048--logpath/data/mongodb/logs/shard_m2_37037.log--logappend--fork

mongodb5647456473021:

mongodb56475564741721:

01/usr/local/mongodb-linux-x86_64-2.4.4/bin/mongod--shardsvr--replSetshard3--port37037--dbpath/data/mongodb/shard37037--oplogSize2048--logpath/data/mongodb/logs/shard_m2_37037.log--logappend--fork

root5648955041021:

36pts/100:

00grepmongo

[root@db_master_2~]#

#过了一段时间后，等项目启动完后，进程数目变成了正常的3个了。

[root@db_master_2~]#ps-eaf|grepmongo

03/usr/local/mongodb-linux-x86_64-2.4.4/bin/mongod--shardsvr--replSetshard3--port37017--dbpath/data/mongodb/shard37017--oplogSize2048--logpath/data/mongodb/logs/shard_m2_37017.log--logappend--fork

03/usr/local/mongodb-linux-x86_64-2.4.4/bin/mongod--shardsvr--replSetshard3--port37027--dbpath/data/mongodb/shard37027--oplogSize2048--logpath/data/mongodb/logs/shard_m2_37027.log--logappend--fork

mongodb564751021:

05/usr/local/mongodb-linux-x86_64-2.4.4/bin/mongod--shardsvr--replSetshard3--port37037--dbpath/data/mongodb/shard37037--oplogSize2048--logpath/data/mongodb/logs/shard_m2_37037.log--logappend--fork

root6146055041021:

49pts/100:

2、初始化新的分片集

#设置新的分片

>

config={_id:

"

shard3"

members:

[

{_id:

0,host:

mongodb_shard3:

37017"

priority:

1},

1,host:

37027"

2},

2,host:

37037"

arbiterOnly:

true}

]

};

#初始化副本集

rs.initiate（config）;

#执行过程如下：

[mongodb@db_master_2~]$/usr/local/mongodb-linux-x86_64-2.4.4/bin/mongomongodb_shard3:

37017/admin

MongoDBshellversion:

2.4.4

connectingto:

mongodb_shard3:

Serverhasstartupwarnings:

2016-07-08T17:

39:

51.888+0800ICONTROL[initandlisten]

51.888+0800ICONTROL[initandlisten]**WARNING:

/sys/kernel/mm/transparent_hugepage/enabledis'

always'

.

51.888+0800ICONTROL[initandlisten]**Wesuggestsettingitto'

never'

/sys/kernel/mm/transparent_hugepage/defragis'

...{_id:

...]

...};

{

"

_id"

:

"

members"

[

{

"

0,

host"

priority"

1

},

1,

2

2,

arbiterOnly"

true

}

]

}

{"

ok"

1}

shard3:

OTHER>

3、mongos上在线添加新的分片shard3

添加命令：

db.runCommand（{addshard:

shard3/mongodb_shard3:

37017,mongodb_shard3:

37027,mongodb_shard3:

}）;

[mongodb@db_m1_slave_1logs]$/usr/local/mongodb-linux-x86_64-2.4.4/bin/mongomongodbs1:

30000/admin

localhost:

mongos>

db.runCommand（{addshard:

shardAdded"

shard1"

"

db.runCommand（{addShard:

maxSize:

0,name:

}）;

sh.addShard（"

）

执行过程如下：

[mongodb@db_master_2~]$/usr/local/mongodb-linux-x86_64-2.4.4/bin/mongomongodbs1:

MongoDBshellversion:

connectingto:

mongodbs1:

mongos>

{

errmsg"

couldn'

tconnecttonewshardsocketexception[CONNECT_ERROR]forshard3/mongodb_shard3:

}

db.runCommand（{removeShard:

}）;

msg"

drainingstartedsuccessfully"

state"

started"

shard"

4、添加移除分片过程

添加shard3报错：

E11000duplicatekeyerrorindex:

config.shards.$_id_dupkey:

{:

\"

shard3\"

}"

查看下当前的sharding信息：

db.printShardingStatus（）;

---ShardingStatus---

shardingversion:

version"

3,

minCompatibleVersion"

currentVersion"

4,

clusterId"

ObjectId（"

56eec856472f21af28119fdc"

shards:

shard1/192.168.3.62:

27017,192.168.3.63:

27017"

shard2"

shard2/192.168.3.62:

27018,192.168.3.63:

27018"

draining"

true,"

databases:

admin"

partitioned"

false,"

primary"

config"

report"

report.print

shardkey:

chunks:

shard11

shard21

{"

$minKey"

1}}-->

>

5517aac945ce6df1bdf8a508"

）}on:

shard1{"

t"

2,"

i"

0}

）}-->

$maxKey"

1}}on:

shard2{"

1}

screen"

search"

traffice"

wifi"

nagios"

nagios.last_primary_server

1,"

office"

office.guard

554dc72f45ce6df1be127ddc"

receivereceiptdata"

test"

app"

ibeacon"

leadvideo"

parking"

pos"

pv"

im"

queue"

receiveposinfodata"

db"

ibeancon"

看到还有shard3的信息，再移除remove一次试试看：

removeshardcompletedsuccessfully"

completed"

再查看Shard信息，没有了shard3的信息了