I'm running a Node container powered by a single node instance with 20 CPUs and 32 GB of RAM, but I'm facing frequent crashes when CPU usage hits 70% (out of a theoretical 2000%) and RAM usage reaches 4GB (from a total of 32GB). I'm looking for ways to reduce these crashes without rewriting any code. Are there Docker settings or library changes I can make to improve stability?
4 Answers
If it's a Node.js app, a useful adjustment is to increase the heap size to prevent out-of-memory (OOM) errors. In your Docker Compose file, set `NODE_OPTIONS` to `--max-old-space-size=8192`. If you still have issues, you might even try up to 16384. This is something I've had to do for larger builds.
It sounds like there might be something wrong with the software in your Docker image. You could try switching to a different Docker image that runs different software to see if that resolves the issue. Without diving into the code, this might be a good initial step to consider.
Honestly, the crashing issue probably isn't related to Docker itself unless there's evidence to show otherwise. Focus on the application that's running within the container. You might want to inspect logs to dig deeper into why it’s crashing.
Increasing your CPU or RAM likely won't solve the issue since your app isn't maxing those out. The problem may lie elsewhere—like network or disk issues. It’s far more probable that there’s something in the code or the libraries causing the crashes.
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