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This article will explain in detail what is related to MongoDB operation and maintenance commands. The content of the article is of high quality, so Xiaobian shares it with you for reference. I hope you have a certain understanding of relevant knowledge after reading this article.

1. Release memory online

use admin

db.runCommand({closeAllDatabases:1})

Note: Version 3.2 has removed this command.

2.rs.status()

Query Replication Set Status

3.db.stats()

Query the status of a specified library (including memory and disk usage statistics)

4.db.collectionsname.stats()

Query specific information about a specified collection

5.db.version()

View version of current instance

6.db.getCollectionNames();

Gets the names of all collections in the current database

7. Export/import of aggregate data

mongoexport / mongoimport

8. Backup and Restore of Database

mongodump and mongostore

9.db.serverStatus()

server statistics

10.db.currentOp()

Statistics of currently running operations

db.currentOp('ture')

Operations with idle

11.mongostat

Diagnostic tool for statistics of global system information

Polls periodically and displays statistics ranging from number of insertions per second to memory usage to frequency of missing B-leaves.

Login at the time, executed under bin document

./ mongostat -h Host IP: port-u User name--authenticationDatabase Login authenticated database

12.mongotop

Mongotop is an external wrapper for the top command and works the same way as mongostat.

What about MongoDB operation-related commands is shared here. I hope the above content can help you to learn more. If you think the article is good, you can share it so that more people can see it.

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