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[BugFix][Core] Multistep Fix Crash on Request Cancellation #8059

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Merged
merged 6 commits into from
Aug 31, 2024
Merged

[BugFix][Core] Multistep Fix Crash on Request Cancellation #8059

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23817b2
avoid crash on abort
Aug 31, 2024
0c129f2
fix
Aug 31, 2024
550d9b9
format
Aug 31, 2024
f6b566f
Revert "format"
Aug 31, 2024
a0e0ab2
format
Aug 31, 2024
c7880e6
Update multi_step.py
robertgshaw2-redhat Aug 31, 2024
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8 changes: 7 additions & 1 deletion vllm/engine/output_processor/multi_step.py
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Original file line number Diff line number Diff line change
Expand Up @@ -88,9 +88,15 @@ def process_outputs(self,
# TODO: Add support for async if necessary
assert not is_async

# Sequences can be in RUNNING or FINISHED_ABORTED state
# once scheduled, as a sequence is moved to FINSIHED_ABORTED
# if a client disconnects from the api server.
seqs = sequence_group.get_seqs(status=SequenceStatus.RUNNING)
if seqs is None:
seqs = sequence_group.get_seqs(
status=SequenceStatus.FINISHED_ABORTED)

assert seqs, "expected running sequences"
assert seqs, "Expected RUNNING or FINISHED_ABORTED sequences"
assert len(seqs) == 1, (
"Beam search not supported in multi-step decoding.")
seq = seqs[0]
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