Question

我正在升级mongodb分片群集，并且是更换mongos进程的第一步。我可以直接杀死这个过程，还是在更换它之前有更安全的方法来关闭它？

Answer 1

这是答案。但可能是你被误解了。您无法从命令行关闭mongos，但您必须登录到shell。以下是我自己尝试的结果：

$ mongo --port 27077 (please replace with your own port on mongos instance)

**mongos**> db.shutdownServer({timeoutSecs:30})
shutdown command only works with the admin database; try 'use admin'
mongos> use admin
switched to db admin
mongos> db.shutdownServer({timeoutSecs:30})
2015-02-27T12:53:54.408+0800 DBClientCursor::init call() failed
**server should be down...**
2015-02-27T12:53:54.410+0800 trying reconnect to 127.0.0.1:27077 (127.0.0.1) failed
2015-02-27T12:53:54.410+0800 warning: Failed to connect to 127.0.0.1:27077, reason: errno:111 Connection refused
2015-02-27T12:53:54.410+0800 reconnect 127.0.0.1:27077 (127.0.0.1) failed failed couldn't connect to server 127.0.0.1:27077 (127.0.0.1), connection attempt failed
2015-02-27T12:53:54.413+0800 trying reconnect to 127.0.0.1:27077 (127.0.0.1) failed
2015-02-27T12:53:54.413+0800 warning: Failed to connect to 127.0.0.1:27077, reason: errno:111 Connection refused
2015-02-27T12:53:54.413+0800 reconnect 127.0.0.1:27077 (127.0.0.1) failed failed couldn't connect to server 127.0.0.1:27077 (127.0.0.1), connection attempt failed
>

尝试运行＆＃34; top＆＃34;或＆＃34; htop＆＃34;显示计算机上运行的所有进程。你会看到＆＃34; mongos＆＃34;过程已经过去了。阅读日志文件。这是我日志的最后两行：

2015-02-27T12:53:54.406+0800 [conn1] terminating, shutdown command received
2015-02-27T12:53:54.406+0800 [conn1] dbexit: shutdown called rc:0 shutdown called

这是我的测试脚本的链接：

https://github.com/babycaseny/QuickStart/blob/master/StartShard.sh

请注意，您必须更换＆＃34; localhost＆＃34;在使用计算机主机名的mongod / mongos命令中，或者您将无法配置分片。

另见这一篇：

https://groups.google.com/forum/#!topic/mongodb-user/TQLlRI6HG1M

如果您需要命令行来完成工作，请参阅：

mongo admin --port portnumber --eval＆＃34; db.shutdownServer（）＆＃34;

请注意，您必须在localhost中运行该命令。

关闭mongos进行升级

1 个答案: