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[BUGFIX] use random for NONE_HASH only when PYTHONHASHSEED not set #17088

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Merged
merged 1 commit into from
Apr 26, 2025
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[BUGFIX] use random for NONE_HASH only when PYTHONHASHSEED not set #17088

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2 changes: 1 addition & 1 deletion vllm/v1/core/kv_cache_utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -43,7 +43,7 @@ class BlockHashType(NamedTuple):
# This aligns with the behavior of Python's hash() function, which also uses
# a random seed if PYTHONHASHSEED is not set.
NONE_HASH = int.from_bytes(os.urandom(32), byteorder="big") if os.getenv(
'PYTHONHASHSEED') is not None else sha256(os.getenv('PYTHONHASHSEED'))
'PYTHONHASHSEED') is None else sha256(os.getenv('PYTHONHASHSEED'))


class PrefixCachingMetrics:
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