[Bug]: `js_image_layer` hangs in Computing Layer Groups

[westrik]

What happened?

The Computing Layer Groups stage of one of our js_image_layer builds usually takes around 30 seconds, but occasionally it will take 1000+ seconds, and this causes our CI build to timeout. It seems like this might be caused by a race condition in https://github.com/aspect-build/rules_js/blob/main/js/private/js_image_layer.mjs.

Version

Development (host) and target OS/architectures: Linux x86_64

Output of bazel --version: 8.2.1rc1

Version of the Aspect rules, or other relevant rules from your
WORKSPACE or MODULE.bazel file: rules_js v2.3.3

Language(s) and/or frameworks involved:

How to reproduce

Any other information?

I don't have a repro or additional data since this happens infrequently, but please let me know if there's something that would be helpful to collect the next time we see this issue.

[thesayyn]

Its really hard to tell what might be happening here. Do you have any other information available to you?

[thesayyn]

This fix help here but i am not sure; #2217

[westrik]

@thesayyn thanks, i'll try that out. I don't have any other info - is there anything that might be helpful to log (i.e. in a patched-in timeout handler)?