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https://issues.apache.org/jira/browse/HADOOP-1345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12495963
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Hadoop QA commented on HADOOP-1345:
-----------------------------------

Integrated in Hadoop-Nightly #89 (See 
http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Nightly/89/)

> Checksum object does not get restored to the old state in retries when handle 
> ChecksumException
> -----------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-1345
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1345
>             Project: Hadoop
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.12.3
>            Reporter: Hairong Kuang
>         Assigned To: Hairong Kuang
>            Priority: Blocker
>             Fix For: 0.13.0
>
>         Attachments: checksum.patch, checksum.patch
>
>
> In ChecksumFile.FSInputChecker, when a ChecksumException occurs, it tries to 
> recover from the error by reading a different replica. However, the current 
> code does not restore the Checksum object's old state. This causes a read not 
> able to recover from ChecksumException although there are non-corrupted 
> replicas available if the read follows a seek to a position which is not at 
> the checksum chunk boundary . 

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