November 2021
Intermediate to advanced
410 pages
12h 1m
Chinese
Content preview from MongoDB权威指南（第3版）
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341
第 21章
在生产环境中设置
MongoDB
第
2
章介绍过启动
MongoDB
的基础命令。本章详细介绍在生产环境中设置
MongoDB
的
重要选项，包括：
•
常用选项；
•
启动和停止
MongoDB
；
•
安全相关的选项；
•
日志相关的注意事项。
21.1
从命令行启动
MongoDB
服务器是以
mongod
可执行文件来启动的。
mongod
有很多可配置的启动选项，要
查看这些选项，可以在命令行中运行
mongod --help
。以下是几个常用且需要注意的选项。
--dbpath
指定一个目录作为数据目录，默认为
/data/db/
（在
Windows
系统中为
MongoDB
可执行
文件所在磁盘卷上的
\data\db\
目录）
。一台机器上的每个
mongod
进程都需要有自己的数
据目录，因此如果在一台机器上运行了
3
个
mongod
实例，就需要
3
个单独的数据目录。
当
mongod
启动时，会在其数据目录中创建一个
mongod.lock
文件，以防止其他
mongod
进程使用该目录。如果试图使用相同的数据目录启动另一台
MongoDB
服务器，则会提
示一个错误。
exception in initAndListen: DBPathInUse: Unable to lock the
lock file: \ data/db/mongod.lock (Resource temporarily unavailable).
Another mongod instance is already running on the
data/db ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.