Does MongoDB need lots of RAM?

Question

MongoDB requires approximately 1 GB of RAM per 100.000 assets. If the system has to start swapping memory to disk, this will have a severely negative impact on performance and should be avoided. 7 мар. 2022 г.

Does MongoDB use a lot of memory?

The MongoDB statefulset has in production cluster 16 GB as memory limit, but is consuming more, 11 GB, and 20 GB in pre-production (Usually consuming 6-7 GB, which is OK).

Is MongoDB resource intensive?

Indexes are resource-intensive: even with compression in the MongoDB WiredTiger storage engine, they consume RAM and disk. As fields are updated, associated indexes must be maintained, incurring additional CPU and disk I/O overhead.

Is MongoDB faster than MySQL?

MongoDB speed debate, MongoDB usually comes out as the winner. MongoDB can accept large amounts of unstructured data much faster than MySQL thanks to slave replication and master replication. Depending on the types of data that you collect, you may benefit significantly from this feature.

Is MongoDB space efficient?

MongoDB now supports native compression with the WiredTiger engine, reducing physical storage footprint by as much as 80% compared to MongoDB configured with MMAPv1. In addition to reduced storage space, compression enables much higher storage I/O scalability as fewer bits are read from disk.

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