这期内容当中小编将会给大家带来有关MongoDB中怎么实现分片与集群，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。

一、 mongodb分片与集群拓扑图

二、分片与集群的部署

1.Mongodb的安装

分别在以上3台服务器安装好mongodb

安装方法见安装脚本。

2.Mongod 创建单个分片的副本集

10.68.4.209

①建立数据文件夹和日志文件夹

mdkir /data/{master,slave,arbiter}

mkdir /data/log/mongodb/{master,slave,arbiter} -p

②建立配置文件

#master.confdbpath=/data/masterlogpath=/data/log/mongodb/master/mongodb.logpidfilepath=/var/run/mongo_master.pid#directoryperdb=truelogappend=truereplSet=policydbport=10002oplogSize=10000fork=truenoprealloc=trueprofile=1slowms=200#slave.confdbpath=/data/slavelogpath=/data/log/mongodb/slave/mongodb.logpidfilepath=/var/run/mongo_slave.pid#directoryperdb=truelogappend=truereplSet=policydbport=10001oplogSize=10000fork=truenoprealloc=trueprofile=1slowms=200#arbiter.confdbpath=/data/arbiterlogpath=/data/log/mongodb/arbiter/mongodb.logpidfilepath=/var/run/mongo_arbiter.pid#directoryperdb=truelogappend=truereplSet=policydbport=10000oplogSize=10000fork=truenoprealloc=trueprofile=1slowms=200

③启动mongodb

/etc/init.d/mongodb_master start

/etc/init.d/mongodb_slave start

/etc/init.d/mongodb_arbiter start

④配置主、备、仲裁节点

主节点:

#/usr/local/mongodb/bin/mongo10.68.4.209:10002MongoDBshellversion:2.4.9connectingto:10.68.4.209:10002/test>useadminswitchedtodbadmin>config={_id:"policydb",members:[{_id:0,host:'10.68.4.209:10002',priority:2},{_id:1,host:'10.68.4.209:10001',priority:1},...{_id:2,host:'10.68.4.209:10000',arbiterOnly:true}]};{"_id":"policydb","members":[{"_id":0,"host":"10.68.4.209:10002","priority":2},{"_id":1,"host":"10.68.4.209:10001","priority":1},{"_id":2,"host":"10.68.4.209:10000","arbiterOnly":true}]}rs.initiate(config)#初始化rs.status()#查看集群状态

10.68.4.29

①建立数据文件夹和日志文件夹

mdkir /data/{master,slave,arbiter}

mkdir /data/log/mongodb/{master,slave,arbiter} -p

②建立配置文件

#master.confdbpath=/data/masterlogpath=/data/log/mongodb/master/mongodb.logpidfilepath=/var/run/mongo_master.pid#directoryperdb=truelogappend=truereplSet=policydb2port=10002oplogSize=10000fork=truenoprealloc=trueprofile=1slowms=200#slave.confdbpath=/data/slavelogpath=/data/log/mongodb/slave/mongodb.logpidfilepath=/var/run/mongo_slave.pid#directoryperdb=truelogappend=truereplSet=policydb2port=10001oplogSize=10000fork=truenoprealloc=trueprofile=1slowms=200#arbiter.confdbpath=/data/arbiterlogpath=/data/log/mongodb/arbiter/mongodb.logpidfilepath=/var/run/mongo_arbiter.pid#directoryperdb=truelogappend=truereplSet=policydb2port=10000oplogSize=10000fork=truenoprealloc=trueprofile=1slowms=200③启动mongodb/etc/init.d/mongodb_masterstart/etc/init.d/mongodb_slavestart/etc/init.d/mongodb_arbiterstart

④配置主、备、仲裁节点

主节点:

#/usr/local/mongodb/bin/mongo10.68.4.209:10002MongoDBshellversion:2.4.9connectingto:10.68.4.209:10002/test>useadminswitchedtodbadmin>config={_id:"policydb2",members:[{_id:0,host:'10.68.4.29:10002',priority:2},{_id:1,host:'10.68.4.29:10001',priority:1},...{_id:2,host:'10.68.4.209:10000',arbiterOnly:true}]};{"_id":"policydb","members":[{"_id":0,"host":"10.68.4.29:10002","priority":2},{"_id":1,"host":"10.68.4.29:10001","priority":1},{"_id":2,"host":"10.68.4.29:10000","arbiterOnly":true}]}rs.initiate(config)#初始化rs.status()#查看集群状态

10.68.4.30

①建立数据文件夹和日志文件夹

mdkir /data/{master,slave,arbiter}

mkdir /data/log/mongodb/{master,slave,arbiter} -p

②建立配置文件

#master.confdbpath=/data/masterlogpath=/data/log/mongodb/master/mongodb.logpidfilepath=/var/run/mongo_master.pid#directoryperdb=truelogappend=truereplSet=policydb3port=10002oplogSize=10000fork=truenoprealloc=trueprofile=1slowms=200#slave.confdbpath=/data/slavelogpath=/data/log/mongodb/slave/mongodb.logpidfilepath=/var/run/mongo_slave.pid#directoryperdb=truelogappend=truereplSet=policydb3port=10001oplogSize=10000fork=truenoprealloc=trueprofile=1slowms=200#arbiter.confdbpath=/data/arbiterlogpath=/data/log/mongodb/arbiter/mongodb.logpidfilepath=/var/run/mongo_arbiter.pid#directoryperdb=truelogappend=truereplSet=policydb3port=10000oplogSize=10000fork=truenoprealloc=trueprofile=1slowms=200

③启动mongodb

/etc/init.d/mongodb_master start

/etc/init.d/mongodb_slave start

/etc/init.d/mongodb_arbiter start

④配置主、备、仲裁节点

主节点:

#/usr/local/mongodb/bin/mongo10.68.4.209:10002MongoDBshellversion:2.4.9connectingto:10.68.4.209:10002/test>useadminswitchedtodbadmin>config={_id:"policydb3",members:[{_id:0,host:'10.68.4.30:10002',priority:2},{_id:1,host:'10.68.4.30:10001',priority:1},...{_id:2,host:'10.68.4.30:10000',arbiterOnly:true}]};{"_id":"policydb","members":[{"_id":0,"host":"10.68.4.30:10002","priority":2},{"_id":1,"host":"10.68.4.30:10001","priority":1},{"_id":2,"host":"10.68.4.30:10000","arbiterOnly":true}]}rs.initiate(config)#初始化rs.status()#查看集群状态

2.Mongod 创建单个分片的配置服务器

① 创建配置目录

10.68.4.209 mkdir /data/config

10.68.4.29 mkdir /data/config

10.68.4.30 mkdir /data/config

②准备配置服务器的配置文件

3个服务器的配置服务器的配置文件一致

#config.confdbpath=/data/configlogpath=/data/log/mongodb/config/mongodb.logpidfilepath=/var/run/mongo_config.piddirectoryperdb=truelogappend=trueport=10003fork=trueconfigsvr=true

③启动配置服务器

/etc/init.d/mongodb_config start

3.Mongod 创建并配置mongos和开启分片模式

① 创建日志目录

Mkdir -p /data/log/mongodb/mongos/

② 准备mongos的配置文件

#mongos.conflogpath=/data/log/mongodb/mongos/mongodb.logpidfilepath=/var/run/mongo_mongos.pidlogappend=trueport=10004fork=trueconfigdb=10.68.4.209:10003,10.68.4.29:10003,10.68.4.30:1000

③ 启动mongos

/etc/init.d/mongodb_mongos start

④ 配置分片

sh.addShard("policydb/10.68.4.209:10002")sh.addShard("policydb2/10.68.4.29:10002")sh.addShard("policydb3/10.68.4.30:10002")sh.enableSharding("policydb")db.runCommand({"shardcollection":"policydb.fullPolicyTextInfo_history","key":{"key":1}})db.printShardingStatus()#查看分片状态sh.status({verbose:true})sh.status()

3.快速创建副本集和配置服务脚本

上图

1.图1

2.图2 config.conf配置文件

3.图3

上述就是小编为大家分享的MongoDB中怎么实现分片与集群了，如果刚好有类似的疑惑，不妨参照上述分析进行理解。如果想知道更多相关知识，欢迎关注亿速云行业资讯频道。