openclaw - 💡(How to fix) Fix ACP sessions leave orphaned node processes after completion/crash (Windows) [1 participants]

FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory

TL;DR

Implement a reliable process cleanup mechanism to terminate all child processes spawned by ACP sessions, preventing memory leaks.

Guidance

• Identify and track all spawned child processes (including claude-agent-acp, claude-agent-sdk, and npx launchers) to ensure proper cleanup.
• Develop a script or integrate a solution that kills the entire process tree when an ACP session ends, rather than just the top-level process.
• Consider implementing a periodic cleanup task as a temporary workaround to mitigate the issue until a permanent fix is in place.
• Verify the effectiveness of the cleanup mechanism by monitoring process counts and memory usage after ACP sessions complete or crash.

Example

No explicit code example is provided due to the lack of specific implementation details in the issue.

Notes

The exact implementation of the process cleanup mechanism may depend on the specific requirements and constraints of the ACP sessions and the environment in which they run.

Recommendation

Apply a workaround by implementing a periodic cleanup script that targets the identified processes (claude-agent-acp, claude-agent-sdk, and related npx launchers) until a permanent fix can be integrated into the acpx plugin to properly manage and terminate child processes.