Shixiong Zhu created SPARK-26665:
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Summary: BlockTransferService.fetchBlockSync may hang forever
Key: SPARK-26665
URL: https://issues.apache.org/jira/browse/SPARK-26665
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 2.4.0
Reporter: Shixiong Zhu
Assignee: Shixiong Zhu
`ByteBuffer.allocate` may throw OutOfMemoryError when the block is large but no
enough memory is available. However, when this happens, right now
BlockTransferService.fetchBlockSync will just hang forever.
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