Execution hangs intermittently when using LangGraph with gevent/monkey-patching

[harshitgupta412]

When using LangGraph within an application that employs gevent with monkey-patching for parallel processing, execution occasionally stops unpredictably. Initially, the application executes workflows correctly, but after several queries (without a consistent trigger or specific node causing the hang), it stops processing further nodes. The node at which the execution stops is random (once this starts happening, workflows never complete but they get stuck at different nodes)
Logs + checkpointer indicate that whatever nodes are executed completes successfully, but the subsequent node never starts execution. There are no error messages or warnings in the logs. Given this, I doubt this is a problem with the implementation of nodes but appears to be a threading or scheduling issue potentially arising from interactions between gevent monkey-patching and LangGraph's node scheduling mechanism.
Any help on what might be the issue will be helpful. I have already tried patching asyncio so that it uses gevent for event loop but that does not solve the issue