I am looking for a way to investigate one of our nodejs services that keeps getting the error

"FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory" 

when testing our performance.

I am looking for a package or program that will give me a warning when there is a memory leak and maybe what exactly is leaking. I know there are the heapdump snapshots, but most of the packages save it to a file that when it is saved on the pod when the pod will crash, will disappear, but also it takes a lot of memory to take the snapshot.

Most of the articles I found are very old and use packages that are already deprecated or just use snapshots and use the chrome dev tools but nobody seems to explain what exactly the columns in the snapshot mean.

Long story short: Do you have any suggestions for how to or which program/package to us for investigating memory issues in a nodejs service that runs on kubernetes and most of its info is received via message queue and not just RestAPI?