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https://issues.apache.org/jira/browse/FLINK-21951?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhu Zhu closed FLINK-21951.
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Assignee: Yingjie Cao
Resolution: Fixed
Fixed via 3533d9822f0f653f2848b31de0fc239b3a12dcef
> 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
> Assignee: Yingjie Cao
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.13.0
>
>
> The wrong if condition in BufferReaderWriterUtil#writeBuffers may lead to
> data loss when bulk writing a large number of buffers 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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