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Posted to common-dev@hadoop.apache.org by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org> on 2009/01/21 01:57:59 UTC

[jira] Resolved: (HADOOP-4769) DataNode should validate the data integrity of a block before updating it

     [ https://issues.apache.org/jira/browse/HADOOP-4769?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tsz Wo (Nicholas), SZE resolved HADOOP-4769.
--------------------------------------------

    Resolution: Won't Fix

This seems not a good idea since the validation is too expensive.

> DataNode should validate the data integrity of a block before updating it
> -------------------------------------------------------------------------
>
>                 Key: HADOOP-4769
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4769
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>         Attachments: 4769_20081203.patch
>
>
> DataNode currently only validate the existence of the block and meta files before update.  The data integrity of a block should also be validated.

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