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https://issues.apache.org/jira/browse/HDFS-553?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12748149#action_12748149
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dhruba borthakur commented on HDFS-553:
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I propose that we backport this to 0.20? This is a very simple and row risk fix
and helps applications that depend on the correct offset being recorded inside
Checksumexception. If folks agree, then I will pull this into 0.20 as well.
> BlockSender reports wrong failed position in ChecksumException
> --------------------------------------------------------------
>
> Key: HDFS-553
> URL: https://issues.apache.org/jira/browse/HDFS-553
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: data-node
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.21.0
>
> Attachments: crcFailedPosition.patch
>
>
> BlockSender sets a wrong position in ChecksumException that indicates the
> offset where crc mismatch occurs.
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