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Posted to common-user@hadoop.apache.org by Ben Slusky <bs...@janestcapital.com> on 2008/06/10 23:28:31 UTC

HDFS crash recovery -- "The directory is already locked."

Greetings,

We had a hard crash due to hardware failure in our Hadoop namenode host,
and now the namenode won't start because it thinks its storage is still
locked. Also, I'm apparently too stupid to find any documentation on
crash recovery. Could someone please enlighten me?

Thanks
-
-Ben

-- 
Ben Slusky <bs...@janestcapital.com>

Re: HDFS crash recovery -- "The directory is already locked."

Posted by Ben Slusky <bs...@janestcapital.com>.
Never mind. The storage in question was on an NFS share, and the locking
problem seems to have resolved itself overnight. Fracking NFS.

Thanks anyway,
-
-Ben

Ben Slusky wrote:
> Greetings,
> 
> We had a hard crash due to hardware failure in our Hadoop namenode host,
> and now the namenode won't start because it thinks its storage is still
> locked. Also, I'm apparently too stupid to find any documentation on
> crash recovery. Could someone please enlighten me?
> 
> Thanks
> -
> -Ben
> 

-- 
Ben Slusky <bs...@janestcapital.com>