站长百科 mongodb分片集群安装教程 正文

mongodb分片集群安装教程

2022-12-02,,,,

mongodb 集群包含副本集群,主从集群以及分片集群,分片集群比较复杂,这里测试我采用了三台机器,交差部署

blog地址:http://www.cnblogs.com/caoguo

一 .环境:
#mongo1:
#172.31.100.97

#mongo2:
#172.31.100.81

#mongo3:
#172.31.100.82

#mongo1 and mongo2,mongo3

二 .基本安装

yum install ntp

#add

#restrict 172.31.100.0//etc/init.d/iptables stop && chkconfig iptables off

setenforce  && echo "SELINUX=disabled" >/etc/selinux/config

#edit /etc/crontab

*/ * * * * root ntpdate 172.31.100.97

wget http://downloads.mongodb.org/linux/mongodb-linux-x86_64-2.6.7.tgz?_ga=1.235705353.941929558.1425604443

tar zxvf mongodb-linux-x86_64-2.6..tgz

mv mongodb-linux-x86_64-2.6. /usr/local/mongodb

ln -sf /usr/local/mongodb/bin/* /usr/sbin/

ln -sf /usr/local/mongodb/bin/mongod /usr/sbin/mongoc

ln -sf /usr/local/mongodb/bin/mongod /usr/sbin/mongod1

ln -sf /usr/local/mongodb/bin/mongod /usr/sbin/mongod2

ln -sf /usr/local/mongodb/bin/mongod /usr/sbin/mongod3

mkdir -p /data/mongodb/config/{data,log}

mkdir -p /data/mongodb/mongos/log

mkdir -p /data/mongodb/shard{1..3}/{data,log}

mkdir -p /etc/mongod

openssl rand -base64 753 >/etc/mongod/keyfile

chmod 600 /etc/mongod/keyfile
echo '#建立mongo1 and mongo2,mongo3配置服务'

cat >/etc/mongod/mongoc.conf <<EOF

#bind_ip=192.168.1.201

port=

fork=true

logappend=true

dbpath=/data/mongodb/config/data

pidfilepath=/var/run/mongoc.pid

#keyFile=/etc/mongod/keyfile

logpath=/data/mongodb/config/log/config.log

configsvr=true

EOF

echo '#create mongos'

cat >/etc/mongod/mongos.conf<<EOF

port=

configdb=172.31.100.97:,172.31.100.82:,172.31.100.81:

fork=true

#keyFile=/etc/mongod/keyfile

logpath=/data/mongodb/mongos/log/mongos.log

EOF

echo '#create shard'

cat >/etc/mongod/mongod1.conf<<EOF

port=

shardsvr=true

replSet=shard1

dbpath=/data/mongodb/shard1/data

logpath=/data/mongodb/shard1/log/shard1.log

#keyFile=/etc/mongod/keyfile

fork=true

nojournal=true

oplogSize=

EOF

cat >/etc/mongod/mongod2.conf<<EOF

port=

shardsvr=true

replSet=shard2

dbpath=/data/mongodb/shard2/data

logpath=/data/mongodb/shard2/log/shard2.log

#keyFile=/etc/mongod/keyfile

fork=true

nojournal=true

oplogSize=

EOF

cat >/etc/mongod/mongod3.conf<<EOF

port=

shardsvr=true

replSet=shard3

dbpath=/data/mongodb/shard3/data

logpath=/data/mongodb/shard3/log/shard3.log

#keyFile=/etc/mongod/keyfile

fork=true

nojournal=true

oplogSize=

EOF
touch /etc/init.d/mongoc

touch /etc/init.d/mongos

touch /etc/init.d/mongod{..}

chmod  /etc/init.d/mongo*
#/etc/init.d/mongoc stop && \

/etc/init.d/mongos stop && \

/etc/init.d/mongod1 stop && \

/etc/init.d/mongod2 stop && \

/etc/init.d/mongod3 stop && \

netstat -ntlp|grep mongo

#/etc/init.d/mongoc start && \

/etc/init.d/mongos start && \

/etc/init.d/mongod1 start && \

/etc/init.d/mongod2 start && \

/etc/init.d/mongod3 start && \

netstat -ntlp|grep mongo

#/etc/init.d/mongoc restart && \

/etc/init.d/mongos restart && \

/etc/init.d/mongod1 restart && \

/etc/init.d/mongod2 restart && \

/etc/init.d/mongod3 restart && \

netstat -ntlp|grep mongo

三 .配置

[root@Centos ~]# mongo localhost:/admin

#复本集一(连到主节点上去操作)

> rs.initiate({"_id":"shard1",

    "members":[

        {"_id":, "host":"172.31.100.97:3100",priority:},

        {"_id":, "host":"172.31.100.82:3100"},

        {"_id":, "host":"172.31.100.81:3100"}

    ]

})

> rs.status()

#复本集二

[root@Centos ~]# mongo localhost:/admin

> rs.initiate({"_id":"shard2",

    "members":[

        {"_id":, "host":"172.31.100.97:3200"},

        {"_id":, "host":"172.31.100.82:3200",priority:},

        {"_id":, "host":"172.31.100.81:3200"}

    ]

})

> rs.status()

#复本集三

[root@Centos ~]# mongo localhost:/admin

> rs.initiate({"_id":"shard3",

    "members":[

        {"_id":, "host":"172.31.100.97:3300"},

        {"_id":, "host":"172.31.100.82:3300"},

        {"_id":, "host":"172.31.100.81:3300", priority:}

    ]

})

> rs.status()

#添加副本

shard1:PRIMARY> rs.remove("172.31.100.81:3100")

shard1:PRIMARY> rs.add("172.31.100.81:3100")

#移除分片

db.runCommand( { removeshard: "shard1" } )

#mongos加入分片主机

[root@Centos ~]# mongo localhost:/admin

mongos> db.runCommand({ addshard : "shard1/172.31.100.97:3100,172.31.100.82:3100,172.31.100.81:3100"});

mongos> db.runCommand({ addshard : "shard2/172.31.100.97:3200,172.31.100.82:3200,172.31.100.81:3200"});

mongos> db.runCommand({ addshard : "shard3/172.31.100.97:3300,172.31.100.82:3300,172.31.100.81:3300"});

mongos> db.runCommand({ listshards :  } );

#允许数据库分片

mongos> db.runCommand({"enablesharding" : "seller"})

#设置集合分片

mongos> db.runCommand({"shardcollection" : "seller.person", "key" : {"_id" : }})

#设置用户验证

mongos> show dbs

admin   (empty)

config  .016GB

mongos> db

admin

mongos> db.addUser('admin','fffR3q!P97scxxxx')

WARNING: The 'addUser' shell helper is DEPRECATED. Please use 'createUser' instead

Successfully added user: { "user" : "admin", "roles" : [ "root" ] }

sed -i 's/^#keyFile/keyFile/g' /etc/mongod/mongoc.conf

sed -i 's/^#keyFile/keyFile/g' /etc/mongod/mongos.conf

sed -i 's/^#keyFile/keyFile/g' /etc/mongod/mongod1.conf

sed -i 's/^#keyFile/keyFile/g' /etc/mongod/mongod2.conf

sed -i 's/^#keyFile/keyFile/g' /etc/mongod/mongod3.conf

grep keyFile /etc/mongod/mongo*

四 .测试

############################

# 数据测试               ###

############################

#插入数据

mongos> use seller

> db.person.insert({"name":"jack","age":})

> db.person.insert({"name":"joe","age":})

#批量插入数据

#for (var i = ; i <= ; i++)db.person.save({id:i,name:"username"+i,age:i});

#删除所有数据

#db.person.remove()

#查看数据分布

db.person.stats()

db.person.getShardDistribution()

#查询数据

> db.person.find({"name":"joe"})

{ "_id" : ObjectId("53150a14d39c963b140c6f6a"), "name" : "joe", "age" :  }

#更新数据

> db.person.update({"name":"joe"},{"name":"joe","age":})

> db.person.find({"name":"joe"})

{ "_id" : ObjectId("53150a14d39c963b140c6f6a"), "name" : "joe", "age" :  }

#移除数据

> db.person.remove({"name":"joe"})

> db.person.find()

{ "_id" : ObjectId("53150a0cd39c963b140c6f69"), "name" : "jack", "age" :  }

> db.person.remove()

> db.person.find()

> db.person.count()

#查看块大小

db.settings.find()

#设置块大小

db.settings.save( { _id:"chunksize", value: <sizeInMB> } )

#空间压缩

db.repairDatabase()

#压缩指定collection,这最好停止写数据，且只能在副本节点操作

db.person.runCommand("compact");

db.runCommand({compact : 'person');

由于启动脚本比较多我放在最后:

/etc/init.d/mongoc 

vi /etc/init.d/mongoc

#!/bin/bash

#

# mongodb    This shell script takes care of starting and stopping

#

# chkconfig: -

### END INIT INFO

# Source function library.

. /etc/init.d/functions

prog=mongoc

lockfile=/var/lock/subsys/$prog

config=/etc/mongod/mongoc.conf

start() {

        # Start daemons.

        echo -n $"Starting $prog: "

        daemon $prog --config $config $OPTIONS

    RETVAL=$?

        echo

    [ $RETVAL -eq  ] && touch $lockfile

    return $RETVAL

}

stop() {

        echo -n $"Shutting down $prog: "

    killproc $prog

    RETVAL=$?

        echo

    [ $RETVAL -eq  ] && rm -f $lockfile

    return $RETVAL

}

# See how we were called.

case "$1" in

  start)

    start

    ;;

  stop)

    stop

    ;;

  status)

    status $prog

    ;;

  restart|force-reload)

    stop

    start

    ;;

  *)

    echo $"Usage: $0 {start|stop|status|restart|try-restart|force-reload}"

    exit

esac

/etc/init.d/mongos

vi /etc/init.d/mongos

#!/bin/bash

#

# mongodb    This shell script takes care of starting and stopping

#

# chkconfig: -

### END INIT INFO

# Source function library.

. /etc/init.d/functions

prog=mongos

lockfile=/var/lock/subsys/$prog

config=/etc/mongod/mongos.conf

start() {

        # Start daemons.

        echo -n $"Starting $prog: "

        daemon $prog --config $config $OPTIONS

    RETVAL=$?

        echo

    [ $RETVAL -eq  ] && touch $lockfile

    return $RETVAL

}

stop() {

        echo -n $"Shutting down $prog: "

    killproc $prog

    RETVAL=$?

        echo

    [ $RETVAL -eq  ] && rm -f $lockfile

    return $RETVAL

}

# See how we were called.

case "$1" in

  start)

    start

    ;;

  stop)

    stop

    ;;

  status)

    status $prog

    ;;

  restart|force-reload)

    stop

    start

    ;;

  *)

    echo $"Usage: $0 {start|stop|status|restart|try-restart|force-reload}"

    exit

esac

/etc/init.d/mongod1

vi /etc/init.d/mongod1

#!/bin/bash

#

# mongodb    This shell script takes care of starting and stopping

#

# chkconfig: -

### END INIT INFO

# Source function library.

. /etc/init.d/functions

prog=mongod1

lockfile=/var/lock/subsys/$prog

config=/etc/mongod/mongod1.conf

start() {

        # Start daemons.

        echo -n $"Starting $prog: "

        daemon $prog --config $config $OPTIONS

    RETVAL=$?

        echo

    [ $RETVAL -eq  ] && touch $lockfile

    return $RETVAL

}

stop() {

        echo -n $"Shutting down $prog: "

    killproc $prog

    RETVAL=$?

        echo

    [ $RETVAL -eq  ] && rm -f $lockfile

    return $RETVAL

}

# See how we were called.

case "$1" in

  start)

    start

    ;;

  stop)

    stop

    ;;

  status)

    status $prog

    ;;

  restart|force-reload)

    stop

    start

    ;;

  *)

    echo $"Usage: $0 {start|stop|status|restart|try-restart|force-reload}"

    exit

esac

/etc/init.d/mongod2

#!/bin/bash

#

# mongodb    This shell script takes care of starting and stopping

#

# chkconfig: -

### END INIT INFO

# Source function library.

. /etc/init.d/functions

prog=mongod2

lockfile=/var/lock/subsys/$prog

config=/etc/mongod/mongod2.conf

start() {

        # Start daemons.

        echo -n $"Starting $prog: "

        daemon $prog --config $config $OPTIONS

    RETVAL=$?

        echo

    [ $RETVAL -eq  ] && touch $lockfile

    return $RETVAL

}

stop() {

        echo -n $"Shutting down $prog: "

    killproc $prog

    RETVAL=$?

        echo

    [ $RETVAL -eq  ] && rm -f $lockfile

    return $RETVAL

}

# See how we were called.

case "$1" in

  start)

    start

    ;;

  stop)

    stop

    ;;

  status)

    status $prog

    ;;

  restart|force-reload)

    stop

    start

    ;;

  *)

    echo $"Usage: $0 {start|stop|status|restart|try-restart|force-reload}"

    exit

esac

/etc/init.d/mongod3

#!/bin/bash

#

# mongodb    This shell script takes care of starting and stopping

#

# chkconfig: -

### END INIT INFO

# Source function library.

. /etc/init.d/functions

prog=mongod3

lockfile=/var/lock/subsys/$prog

config=/etc/mongod/mongod3.conf

start() {

        # Start daemons.

        echo -n $"Starting $prog: "

        daemon $prog --config $config $OPTIONS

    RETVAL=$?

        echo

    [ $RETVAL -eq  ] && touch $lockfile

    return $RETVAL

}

stop() {

        echo -n $"Shutting down $prog: "

    killproc $prog

    RETVAL=$?

        echo

    [ $RETVAL -eq  ] && rm -f $lockfile

    return $RETVAL

}

# See how we were called.

case "$1" in

  start)

    start

    ;;

  stop)

    stop

    ;;

  status)

    status $prog

    ;;

  restart|force-reload)

    stop

    start

    ;;

  *)

    echo $"Usage: $0 {start|stop|status|restart|try-restart|force-reload}"

    exit

esac

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