Why is MongoDB using all RAM?

Question

MongoDB

For the last two days, MongoDB has been eating up more RAM.
As a result, by the end of the day, the MongoDB service just crashes.
It looks like this.

Answer 1

First you need to make sure that this is a monga, how did you check? Next, install the (latest) stable version.
Next, make indexes for your queries.

MongoDB just crashes

the service can also crash if someone else ate all the memory.

Answer 2

As far as I understand, mongo keeps data in memory. She has a working principle.