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HomeDatabaseMysql Tutorial安装MongoDB配置Replica Set

MongoDB的环境主要包括StandAlone,Replication和Sharding。因为数据量和机器量的原因,项目最终用了一个Primary,一个Secondary

MongoDB的环境主要包括StandAlone,Replication和Sharding。

  • StandAlone:单机环境,一般开发测试的时候用。
  • Replication:主从结构,一个Primary,多个Secondary,可能会有Arbitry。
  • Sharding:share nothing的结构,每台机器只存一部分数据。mongod服务器存数据,mongos服务器负责路由读写请求,,元数据存在config数据库中。
  • 因为数据量和机器量的原因,项目最终用了一个Primary,一个Secondary,一个Arbitry。我自己的开发环境是Ubuntu,测试环境是CentOS。安装的是64位的MongoDB。

    Ubuntu上的安装

    sudo apt-get install mongodb-10gen

    CentOS上的安装

    配置yum源,创建文件:/etc/yum.repos.d/mongodb.repo

    [mongodb] name=MongoDB Repository baseurl=http://downloads-distro.mongodb.org/repo/RedHat/os/x86_64/ gpgcheck=0 enabled=1

    安装命令:

    yum install mongo-10gen mongo-10gen-server

    配置

    每台机器上面的配置文件/etc/mongod.conf修改成下面的:

    #数据库文件所在位置(默认) dbpath=/var/lib/mongo #日志所在位置(默认) logpath=/var/log/mongo/mongod.log #pid所在位置(默认) pidfilepath = /var/run/mongodb/mongod.pid #keyFile所在位置,生成方式在后面(添加) keyFile=/var/lib/mongo/key #端口(默认) port=27017 #每次启动后日志追加在后面,不会新建日志文件(默认) logappend=true #用deamon方式启动(添加) fork=true #打开操作日志,用于故障恢复和持久化(默认) journal=true #replica set的名字(添加) replSet=test-set

    在每台机器上运行:

    sudo mongod -f /etc/mongod.conf

    我的环境里面,Primary ip: 192.168.1.1,Secondary ip: 192.168.1.2,Arbitary ip: 192.168.1.3。在单机上可以将多个mongodb设置成不同端口,我测试了一下也是可以的。

    在Primary上运行“mongo”,打开命令行,设置Replica Set:

    rs.initiate( {: , : [ {: : }, {: : }, {: : , : true} ] }); { : "ok" : 1 }

    历史成功后需要等一段时间,他会选举Primary,然后查看Replica Set的状态:

    test-set:PRIMARY> rs.status() { : "test-set", : ISODate(), : 7, : [ { : 1, : , : 1, : 1, : , : 4086, : Timestamp(1392972480, 1), : ISODate(), : ISODate(), : ISODate(), : 0 }, { : 2, : , : 1, : 2, : , : 3997, : Timestamp(1392972480, 1), : ISODate(), : ISODate(), : ISODate(), : 0, : }, { : 3, : , : 1, : 7, : , : 5781, : true } ], : 1 }

    这样整个replica set就配置成功了,还是比较简单的。

    MongoDB 的详细介绍:请点这里
    MongoDB 的下载地址:请点这里

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    MongoDB备份与恢复

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    如何在MongoDB中建立新数据库和集合

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