Fatal Error: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory

[gchacaltana]

Hi team, I'm using Rocket Chat (version 5.4.0) on a Linux instance, running on a workload with 4 GB of RAM, node version 14.19, and we have identified that when we have memory consumption peaks greater than that reach 2 GB, an error with the following message is sometimes generated: "FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory", however, the workload is configured to 4 GB of RAM. It is as if the Rocket Chat instance cannot consume all the memory. Has anything similar happened to you? Do you think it is a Rocket Chat configuration or the way the application is run with Node?

[florisvangeel]

Just noticed this issue trying to build tags/7.0.0 from git on ubuntu 24.04 (no docker)
These heaps are used to bundle and compress javascript, most likely this happened in your build process.

Besides that 7.x now requires deno
The javascript compressed file sizes also increased.
my build LXC has 16gb, so in this part of this process i set those to half the memory:

export NODE_OPTIONS="--max-old-space-size=8192"

Not sure how much is minimally needed, but it ran with 8gb.
After the meteor build runs fine.

[florisvangeel]

Update: in order to build 7.6.x and above 16GB of memory isn't enough anymore.
So i upped the build machine to 20GB internal memory.