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From Allen Wittenauer <awittena...@linkedin.com>
Subject Re: HDFS safemode recovery take more than an hour
Date Sat, 12 Jun 2010 00:56:45 GMT

(removing hadoop-user@lucene)

On Jun 11, 2010, at 5:08 PM, Bhupesh Bansal wrote:

> I am also seeing similar issues, I am not clear how will the secondary name
> node helps here ? 
> AFAIK secondary namenode checkpoints and saves namenode snapshots
> periodically and namenode 
> do not check with secondary namenode for any data inconsistencies. 

You can copy the checkpoint over to the primary.  This is better than no backup at all. :)
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