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Avoid lock if serialization result is already cached #58722

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Merged
raulchen merged 1 commit into from
Nov 18, 2025
+2 −0
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Avoid lock if serialization result is already cached #58722

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2 changes: 2 additions & 0 deletions python/ray/air/util/tensor_extensions/arrow.py
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Original file line number Diff line number Diff line change
Expand Up @@ -127,6 +127,8 @@ def __init__(self, *args: Any, **kwargs: Any) -> None:

def __arrow_ext_serialize__(self) -> bytes:
"""Serialize the extension type using caching if enabled."""
if self._serialize_cache is not None:
return self._serialize_cache
with self._cache_lock:
if self._serialize_cache is None:
self._serialize_cache = self._arrow_ext_serialize_compute()
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