Ricky Ma created SPARK-48663:
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Summary: Use a double-check locking mechanism to minimize
synchronization overhead in NettyUtils
Key: SPARK-48663
URL: https://issues.apache.org/jira/browse/SPARK-48663
Project: Spark
Issue Type: Improvement
Components: Spark Core
Affects Versions: 4.0.0
Reporter: Ricky Ma
We can use a double-check locking mechanism to minimize synchronization
overhead in NettyUtils when calling `getSharedPooledByteBufAllocator`.
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