CODEWITHSUNDEEP
mongodb
sampathkumar
sampathkumar

Reputation: 111

Is it possible to reduce the MongoDB memory usage?

I am undergoing testing with 64-bit MongoDB. If I configure large size backups then the MongoDB memory utilization seems to be high.

Is there any possibility to reduce the memory utilization by MongoDB.

Upvotes: 6

Views: 17073

Answers (4)

Leo Zhu
Leo Zhu

Reputation: 21

Update /etc/security/limits.conf

Add a line as below:

@mongodb - rss 33554432

and then save the file.

It will take effects right away.

In this example, we assign 32GB memory usage for mongodb group users

Upvotes: 2

Kdeveloper
Kdeveloper

Reputation: 13819

For Windows it seems possible to control the amount of memory MongoDB uses, see this tutorial at Captain Codeman:

Limit MongoDB memory use on Windows without Virtualization

Upvotes: 1

Rich
Rich

Reputation: 15757

Do you mean memory usage or disk space? If you are really talking about memory, then Mongo stores its data in memory-mapped files, giving the illusion of massive memory usage.

You will find more information here:

http://www.mongodb.org/display/DOCS/Checking+Server+Memory+Usage

Upvotes: 0

user2665694
user2665694

Reputation:

Is it ideal that MongoDB is using 150 MB memory?

Upvotes: 3

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