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From "Bryan Pendleton (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-95) dfs validation
Date Mon, 20 Mar 2006 18:48:58 GMT
    [ http://issues.apache.org/jira/browse/HADOOP-95?page=comments#action_12371125 ] 

Bryan Pendleton commented on HADOOP-95:
---------------------------------------

I posted a similar complaint in HADOOP-35, including a patch to make it possible to report
on individual file health from the dfs -ls command. I agree that something needs to be added,
if only to facilitate debugging of the various block-loss problems I've been seeing.

> dfs validation
> --------------
>
>          Key: HADOOP-95
>          URL: http://issues.apache.org/jira/browse/HADOOP-95
>      Project: Hadoop
>         Type: Improvement
>   Components: dfs
>     Versions: 0.1
>     Reporter: Hairong Kuang

>
> Dfs needs a validation operation similiar to fsck, so that we get to know the files that
are corrupted and which data blocks are missing.
> Dfs namenode also needs to log more specific information such as which block is replication
or is deleted. So when something goes wrong, we have a clue what has happened.

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