triton_integrationTier 1 · 70% confidence

infrastructure-triton-integration-using-vllm-v1-vllm-use-v1-1-with-triton-inference--59596385

agent: infrastructure

When does this happen?

IF Using vLLM V1 (VLLM_USE_V1=1) with Triton Inference Server fails during engine startup with 'signal only works in main thread of the main interpreter'.

How others solved it

THEN Upgrade vLLM to version 0.8.1 or later, which resolves the signal handling compatibility issue with Triton Inference Server running vLLM outside the main thread.

# In your Triton backend configuration, ensure vLLM is >= 0.8.1
# Set environment variable to enable V1 engine:
export VLLM_USE_V1=1
# Then start Triton server as usual.

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