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https://issues.apache.org/jira/browse/HDFS-679?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hairong Kuang updated HDFS-679:
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Attachment: appendToPartialChunk1.patch
This patch incorporates comments 1, 2, 4, and 5. Comment 5 is of special help
that help find another bug in the code. Thanks Suresh!
As for comment 3, this does not effect every hflush operation. This takes
effect only for the first partial chunk after an application opened a file for
append and is good for capturing on-disk data corruption.
> Block receiver unexpectedly throws an IOException complaining mismatched
> checksum
> ---------------------------------------------------------------------------------
>
> Key: HDFS-679
> URL: https://issues.apache.org/jira/browse/HDFS-679
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 0.21.0
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.21.0
>
> Attachments: appendToPartialChunk.patch, appendToPartialChunk1.patch
>
>
> When I run TestClientProtocolForPipelineRecovery, I always see that the block
> receiver throws IOException complaining about mismatched checksum when
> receiving the last data packet. It turns out the checksum of last packet was
> unexpectedly set to be zero.
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