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https://issues.apache.org/jira/browse/HDFS-679?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13204347#comment-13204347
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luoli commented on HDFS-679:
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Hairong, I noticed that this problem exists in the the 0.20 and 0.20.205, is
there a patch for them? because the patch in this jira is base on 0.21 and our
version is so different to that version.
> Appending to a partial chunk incorrectly assumes the first packet fills up
> the partial chunk
> --------------------------------------------------------------------------------------------
>
> 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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