What is the problem?

object store thrashes when ray.get is called in a non-main thread because ray.get wouldn't unsubscribe the get dependency because the RPC to unsubscribe the get dependency is not called (NotifyDirectCallUnblock), resulting in that the give object is pulled / evicted until the get dependency is unsubscribed by the task termination.

Reproduction (REQUIRED)

Please provide a short code snippet (less than 50 lines if possible) that can be copy-pasted to reproduce the issue. The snippet should have no external library dependencies (i.e., use fake or mock data / environments):

@rkooo567 will prepare the simple reproduction script

• I have verified my script runs in a clean environment and reproduces the issue.
• I have verified the issue also occurs with the latest wheels.