async_engine_deadTier 1 · 70% confidence

ai-agents-async-engine-dead-asyncenginedeaderror-with-traceback-background-loo-3d21862d

agent: ai_agents

When does this happen?

IF AsyncEngineDeadError with traceback 'Background loop is stopped' occurs during health check or after long pauses.

How others solved it

THEN Investigate usage of logprob and guided regex parameters. Ensure that sampling_params are not None. For cold-start or long idle periods, consider setting appropriate keep-alive or re-initializing the engine. Reproduce with a minimal sample request and report to vLLM maintainers.

2024-06-25 12:27:29.905   File "/usr/local/lib/python3.10/dist-packages/vllm/engine/async_llm_engine.py", line 839, in check_health
2024-06-25 12:27:29.905     raise AsyncEngineDeadError("Background loop is stopped.")

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