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From Mahadev Konar <maha...@apache.org>
Subject Re: Debugging and fixing Safemode
Date Sun, 13 Feb 2011 04:08:06 GMT
http://hadoop.apache.org/common/docs/current/commands_manual.html#fsck

Fsck should be of help.

thanks
mahadev

On Fri, Feb 11, 2011 at 11:53 AM, Edupuganti, Sandhya
<sandhyae@amazon.com> wrote:
> Our Namenode is going into Safemode after every restart. It reports the ratio to be .98xxx
whereas it is looking for 0.999 to leave the safe mode. So I'm guessing there must be one
or two files that are under replicated.
>
> Is there any way I can find out which files are under replicated, so that I can re copy
them if I have or delete them.
>
> I don’t want to end up with a silent Namenode in a safemode next time and causing all
our jobs to fail.
>
> Any pointers will be greatly appreciated
>
> Many Thanks
> Sandhya
>

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