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Date: Tue, 20 Oct 2009 17:45:59 +0000 (UTC)
From: "Suresh Srinivas (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Subject: [jira] Commented: (HDFS-679) Appending to a partial chunk
 incorrectly assumes the first packet fills up the partial chunk
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    [ https://issues.apache.org/jira/browse/HDFS-679?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12767885#action_12767885 ] 

Suresh Srinivas commented on HDFS-679:
--------------------------------------

+1 for the new patch.

> 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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