1. Increase Node.js Memory Limit
By default, Node.js has a memory limit of around 1.5 GB. You can increase this limit to prevent the heap memory error.
You can increase the memory allocation by setting the
--max-old-space-sizeflag when starting the server. For example:This will set the memory limit to 4 GB. You can adjust the number (
4096in this case) to allocate more or less memory as needed.
2. Optimize Angular SSR Code
If increasing the memory limit doesn't resolve the issue, the problem might lie within your SSR code. Here are a few optimizations you can consider:
- Reduce Bundle Size: Minimize the size of your Angular bundle by optimizing the Angular application (using lazy loading, tree shaking, etc.).
- Avoid Memory Leaks: Check your SSR-related services, components, and modules for potential memory leaks (e.g., unhandled subscriptions, large objects in memory).
3. Run Angular in Production Mode
Make sure you are building and running Angular SSR in production mode to enable optimizations:
4. Use pm2 or a Similar Process Manager
If you're using a process manager like pm2, you can also set the memory limit for Node.js when running the server. Example for pm2:
This will allow pm2 to run with the increased memory limit.
5. Monitor Server Resources
Monitor your server's memory usage to identify if there are any spikes or inefficient memory usage patterns in your application. Tools like htop or top on Linux can help monitor memory consumption.
6. Update Dependencies
Sometimes, outdated packages or libraries can cause memory issues. Ensure your Angular, SSR-related dependencies, and Node.js are all up to date.
After following these steps, try running your Angular SSR again and see if the heap memory error is resolved. Let me know if you need more specific assistance!
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