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https://issues.apache.org/jira/browse/HADOOP-4994?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12662251#action_12662251
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dhruba borthakur commented on HADOOP-4994:
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let me understand this one. Suppose the datanode is storing its blocks on a
Linux ext3 filesystem. are you saying that a stat on the Linux ext3 block file
should return a file size that should be the same as reported by
InterDatanodeProtocol.getBlockMetaDataInfo().getNumBytes()?
> 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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