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[V1][Core] Remove should_shutdown to simplify core process termination #11113

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tlrmchlsmth
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@tlrmchlsmth tlrmchlsmth commented Dec 11, 2024

This PR removes the should_shutdown multiprocessing.Value in favor of having one single process termination mechanism, which is an exception that handles both SIGINT and SIGTERM, and we need to handle SIGINT anyway.

Tested manually that this shuts down correctly when setting VLLM_ENABLE_V1_MULTIPROCESSING=1 VLLM_USE_V1=1 using both a simple script (uses atexit -> shutdown() codepath) and using vllm serve (sending both a SIGINT and SIGTERM)

Signed-off-by: Tyler Michael Smith <[email protected]>
Signed-off-by: Tyler Michael Smith <[email protected]>
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@github-actions github-actions bot added the ready ONLY add when PR is ready to merge/full CI is needed label Dec 11, 2024
@robertgshaw2-neuralmagic robertgshaw2-neuralmagic merged commit 452a723 into vllm-project:main Dec 11, 2024
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elfiegg pushed a commit to elfiegg/vllm that referenced this pull request Dec 12, 2024
Akshat-Tripathi pushed a commit to krai/vllm that referenced this pull request Dec 12, 2024
sleepwalker2017 pushed a commit to sleepwalker2017/vllm that referenced this pull request Dec 13, 2024
BKitor pushed a commit to BKitor/vllm that referenced this pull request Dec 30, 2024
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