更改MongoDB数据存储目录 [英] Changing MongoDB data store directory

问题描述

直到现在，我还没有指定MongoDB数据目录，并且只有一个30 GB的主分区.

Until now I have not been specifying a MongoDB data directory and have had only one 30 GB primary partition.

我刚好用光了空间并添加了新硬盘.如何传输我的数据(显然在/var/lib/mongodb/中)并配置MongoDB，以便所有内容都可以在新磁盘上运行而又不影响现有安装?

I just ran out of space and added a new hard disk. How can I transfer my data (that is apparently in /var/lib/mongodb/) and configure MongoDB so that everything runs off of the new disk without affecting my existing installation?

推荐答案

简短的答案是MongoDB中的--dbpath参数将允许您控制MongoDB从哪个目录读取和写入数据.

The short answer is that the --dbpath parameter in MongoDB will allow you to control what directory MongoDB reads and writes it's data from.

mongod --dbpath/usr/local/mongodb-data

mongod --dbpath /usr/local/mongodb-data

将启动mongodb并将文件放入/usr/local/mongodb-data.

Would start mongodb and put the files in /usr/local/mongodb-data.

根据您的发行版和MongoDB安装，还可以配置mongod.conf文件以自动执行此操作:

Depending on your distribution and MongoDB installation, you can also configure the mongod.conf file to do this automatically:

# Store data in /usr/local/var/mongodb instead of the default /data/db
dbpath = /usr/local/var/mongodb

10gen Linux官方软件包( Ubuntu/Debian 或 CentOS/Fedora )附带了一个放置在其中的基本配置文件在/etc/mongodb.conf中，MongoDB服务将在启动时读取该内容.您可以在此处进行更改.

The official 10gen Linux packages (Ubuntu/Debian or CentOS/Fedora) ship with a basic configuration file which is placed in /etc/mongodb.conf, and the MongoDB service reads this when it starts up. You could make your change here.

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