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From "eric baldeschwieler (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-56) hadoop nameserver does not recognise ndfs nameserver image
Date Sat, 25 Feb 2006 06:30:43 GMT
    [ http://issues.apache.org/jira/browse/HADOOP-56?page=comments#action_12367760 ] 

eric baldeschwieler commented on HADOOP-56:
-------------------------------------------

A format command sounds useful.

GUID and other extensions to block meta data to allow more error checking also sound like
a good idea, but I feel like we need to thrash out the use cases  Not sure I follow the intended
behavior in bryan's example.  Maybe we should fork that discussion into an enhancement proposal?


> hadoop nameserver does not recognise ndfs nameserver image
> ----------------------------------------------------------
>
>          Key: HADOOP-56
>          URL: http://issues.apache.org/jira/browse/HADOOP-56
>      Project: Hadoop
>         Type: Bug
>   Components: dfs
>     Versions: 0.1
>     Reporter: Yoram Arnon
>     Priority: Critical
>  Attachments: ndfs.tar.gz
>
> hadoop nameserver does not recognise ndfs image
> Thus, upgrading from ndfs to hadoop dfs results in total data loss.
> The upgrade should be seemless, with the new server recognising all previous version
that are not end-of-life'd.

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