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https://issues.apache.org/jira/browse/HADOOP-2275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12545687
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Raghu Angadi commented on HADOOP-2275:
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Thats right. +1 for the patch.
> Erroneous detection of corrupted file when namenode fails to allocate any
> datanodes for newly allocated block
> -------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-2275
> URL: https://issues.apache.org/jira/browse/HADOOP-2275
> Project: Hadoop
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.15.0
> Reporter: dhruba borthakur
> Assignee: dhruba borthakur
> Attachments: badBlocks1.patch, badBlocks1.patch
>
>
> It can so happen that the namenode allocated a block for a file and then
> fails to allocate any datanode for this block. The namenode delivers an
> exception to the client. The client retries. But the block remains associated
> with the file (until lease expiration). This causes all client retries to
> fail.
> An fsck (before the lease expires) reports this block as a missing block.
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