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https://issues.apache.org/jira/browse/HADOOP-4994?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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dhruba borthakur updated HADOOP-4994:
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    Component/s: dfs

> Datanode should verify block sizes vs metadata on startup
> ---------------------------------------------------------
>
>                 Key: HADOOP-4994
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4994
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>            Reporter: Brian Bockelman
>
> I could have sworn this bug had been reported by someone else already, but I 
> can't find it on JIRA after searching.... apologies if this is a duplicate.
> The datanode, upon starting up, should check and make sure that all block 
> sizes as reported via `stat` are the same as the block sizes as reported via 
> the block's metadata.

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