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MongoDB在Ubuntu 14.04的配置

Jun 07, 2016 pm 03:10 PM

我在虚拟机VirtualBox上安装了Ubuntu 14.04,然后在部署MongoDB时遇到了错误。

我在虚拟机VirtualBox上安装了Ubuntu 14.04,然后在部署MongoDB时遇到了错误。

环境:

问题:

在安装mongo-server

$ sudo apt-get install mongodb-server

之后,无法启动MongoDB的服务

$ sudo service mongodb start      #why error?

重启虚拟机多次,,删除配置文件并重装mongo-server多次

$ sudo apt-get remove –purge mongodb-server

$ sudo apt-get install mongodb-server

无效。 

分析:

查看配置文件/etc/mongodb.conf,根据其中的信息进行追踪到了几个目录,可疑的报错项有:

  • 空间不够,提示使用--smallfiles参数
  • 日志目录权限不够,拒绝访问
  • 调整起来依然比较繁琐。

    尝试手工启动mongod进程,报空间和权限的错

    $ mongod –f /etc/mongodb.conf          #权限错误

    $ sudo mongod –f /etc/mongodb.conf #空间不够

    查看了一下/etc/group和/etc/passwd,已经存在MongoDB相关的项,说明MongoDB账户已经建立好了。 

    权衡:

    直接修改默认日志目录和数据文件的权限依然有可能会出问题。不想在层级的目录权限上纠结。由/etc/passwd知,MongoDB的老家在/home/mongodb,那就让它回老家去吧。 

    方法:

    建立MongoDB的老家,并且给它产权

    $ sudo mkdir –p /home/mongodb

    $ sudo chown mongodb:mongodb /home/mongodb

    调整配置文件,指向老家,加上参数

    $sudo vim /etc/mongodb.conf

    dbpath=/home/mongodb

    logpath=/home/mongodb/mongo.log

    smallfiles=true

    再次重启。经此调整以后,已经能够正确维护MongoDB服务

    $ sudo service mongodb [start|restart|status]

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

    本文永久更新链接地址

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