- Increase the memory limit:
By default, Node.js has a memory limit of around 2 GB for 64-bit systems and 512 MB for 32-bit systems. You can increase the memory limit by passing the
--max-old-space-size flag followed by the size in MB when starting your Node.js application.
For example, to increase the memory limit to 4 GB, run:
node --max-old-space-size=4096 your_script.js
- Optimize your code:
The memory error may be caused by inefficient code that consumes too much memory. Look for potential memory leaks or inefficiencies in your code, such as:
- Unnecessary global variables
- Large data structures or arrays
- Caching too much data in memory
- Not properly closing resources like file streams or database connections
- Circular references in objects
- Use lazy loading:
If your application loads a large amount of data or modules, consider using lazy loading. This means loading data or modules only when they're needed, rather than loading everything upfront.
- Use streaming:
When processing large files or data streams, consider using Node.js streams instead of reading the entire file into memory. This can significantly reduce memory usage.
- Garbage collection:
Manually triggering garbage collection can help in some cases. However, it's generally not recommended, as it can cause performance issues