Yingjie Cao created FLINK-21951:
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Summary: Fix wrong if condition in
BufferReaderWriterUtil#writeBuffers
Key: FLINK-21951
URL: https://issues.apache.org/jira/browse/FLINK-21951
Project: Flink
Issue Type: Sub-task
Components: Runtime / Network
Reporter: Yingjie Cao
Fix For: 1.13.0
The wrong if condition in BufferReaderWriterUtil#writeBuffers may lead to data
loss when bulk writing a large amount of data into file. This is a bug intruded
since 1.9, but only small amount of data is written, so the bug never occurs.
In 1.13, the sort-merge shuffle uses it to write more data which triggers the
bug.
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