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.")Related patterns
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