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This article mainly introduces "how to monitor the running status of MongoDB". In the daily operation, I believe that many people have doubts about how to monitor the running status of MongoDB. The editor consulted all kinds of data and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts about "how to monitor the running status of MongoDB". Next, please follow the editor to study!

Mongostat and mongotop commands are provided in MongoDB to monitor the operation of MongoDB.

Mongostat command

Mongostat is a status detection tool that comes with mongodb and is used on the command line. It gets the current running state of mongodb at regular intervals and outputs it. If you find that the database suddenly slows down or has other problems, your first-hand operation should consider using mongostat to check the status of mongo.

[root@D2-LZY245] # mongostat-u "root"-p "root"-authenticationDatabase admin

Insert query update delete getmore command dirty used flushes vsize res qrw arw net_in net_out conn time

* 0 * 0 * 0 * 002 | 0 0% 0 0% 0 964M 51.0 M 0 | 0 0 | 0 160b 46.0k 2 Aug 18 10 26 22 203

* 0 * 0 * 0 * 002 | 0 0% 0 0% 0 964M 51.0 M 0 | 0 0 | 0 158b 45.5k 2 Aug 18 10 26 23 203

* 0 * 0 * 0 * 0 01 | 0 0% 0 0% 0 964M 51.0 M 0 | 0 0 | 0 157b 45.4k 2 Aug 18 10 26 24 204

* 0 * 0 * 0 * 002 | 0 0% 0 0% 0 964M 51.0 M 0 | 0 0 | 0 158b 45.5k 2 Aug 18 10 26 25 204

* 0 * 0 * 0 * 002 | 0 0% 0 0% 0 964M 51.0 M 0 | 0 0 | 0 158b 45.5k 2 Aug 18 10 26 VRO 26.203

* 0 * 0 * 0 * 002 | 0 0% 0 0% 0 964M 51.0 M 0 | 0 0 | 0 158b 45.5k 2 Aug 18 10 26 viz 27.203

* 0 * 0 * 0 * 002 | 0 0% 0 0% 0 964M 51.0 M 0 | 0 0 | 0 158b 45.5k 2 Aug 18 10 26 28 202

* 0 * 0 * 0 * 0 01 | 0 0% 0 0% 0 964M 51.0 M 0 | 0 0 | 0 157b 45.5k 2 Aug 18 10 26 29.203

* 0 * 0 * 0 * 0 01 | 0 0% 0 0% 0 964M 51.0 M 0 | 0 0 | 0 157b 45.4k 2 Aug 18 10 26 30 204

* 0 * 0 * 0 * 0 02 | 0 0% 0 0% 0 964M 51.0 M 0 | 0 0 | 0 158b 45.5k 2 Aug 18 10 26 31 202

Mongotop command

Mongotop is also a built-in tool under mongodb, and mongotop provides a way to track an instance of MongoDB to see which time is spent reading and writing data. Mongotop provides statistics at the level of each collection. By default, mongotop returns every second of the value.

[root@D2-LZY245] # mongotop-u "root"-p "root"-authenticationDatabase admin

2017-08-18T10:29:10.150+0800 connected to: 127.0.0.1

Ns total read write 2017-08-18T10:29:11+08:00

Admin.system.roles 0ms 0ms 0ms

Admin.system.users 0ms 0ms 0ms

Admin.system.version 0ms 0ms 0ms

Hr.dept 0ms 0ms 0ms

Hr.depts 0ms 0ms 0ms

Hr.emp 0ms 0ms 0ms

Hr.emps 0ms 0ms 0ms

Hr.emps_infos 0ms 0ms 0ms

Hr.info 0ms 0ms 0ms

Hr.inventory 0ms 0ms 0ms

[root@D2-LZY245] # mongotop-u "root"-p "root"-- authenticationDatabase admin-- locks

2017-08-18T10:30:52.337+0800 Failed: server does not support reporting lock information

At this point, the study on "how to monitor the running status of MongoDB" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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