Question

JavaScript heap out of memory while running a Nodejs app on App Platform

Posted August 20, 2021 105 views
Node.jsDigitalOcean App Platform

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

I ran into an issue with my latest build/deployment. I had a successful build locally on my machine. Can you help me on how to solve this?

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1 answer

Hello,

In app platform you only have 8gb of disk space + RAM. If either of those or both combined go over 8gb the build will fail with the out of memory errors you are seeing.

Yes we agree to your query but since the heap memory is sort of dynamic and increases during the runtime.

If this is a react or similar app you may need to add a memory limit to the build script something like and also refer to the below options.

react-scripts –maxoldspace_size=2048 build

You may need to add 2 environment variables with BUILD_SCOPE:

  1. Key: NODE_OPTIONS
    Value: –max-old-space-size=4096

  2. Key: GENERATE_SOURCEMAP
    Value: false

Hope this helps!

Cheers,
Sri Charan