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

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Signed-off-by: Andy Xie <andy.xning@gmail.com>
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Ning Xie 2025-04-26 22:34:24 +08:00 committed by GitHub
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commit dc2ceca5c5
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vllm/v1/core/kv_cache_utils.py
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@ -43,7 +43,7 @@ class BlockHashType(NamedTuple):
# This aligns with the behavior of Python's hash() function, which also uses # This aligns with the behavior of Python's hash() function, which also uses
# a random seed if PYTHONHASHSEED is not set. # a random seed if PYTHONHASHSEED is not set.
NONE_HASH = int.from_bytes(os.urandom(32), byteorder="big") if os.getenv( 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: class PrefixCachingMetrics: