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From "Kevin O'dell" <kevin.od...@cloudera.com>
Subject Re: hbase corruption - missing region files in HDFS
Date Sun, 09 Dec 2012 23:00:44 GMT
can you run hbase hbck -fixMeta -fixAssignments

This should assign those region servers and fix the hole.

On Sat, Dec 8, 2012 at 11:30 PM, Chris Waterson <waterson@maubi.net> wrote:

> Hello!  I've gotten myself into trouble where I'm missing files on HDFS
> that HBase thinks ought to be there.  In particular, running "hbase hbck"
> yields the below message: two regions are "not deployed on any region
> server" (because there is no file in HDFS for the region), and "there is a
> hole in the region chain".
> (FWIW, I suspect that this problem is due to a recent incident where we
> ran the cluster out of disk space.)
> I'm running 0.92.1, and have been staggering around trying to figure out
> what procedure I ought to use to correct the problem, but my Google-fu is
> too poor to have yielded results.  Any pointers would be appreciated!
> thanks,
> chris
> ERROR: Region
> referrers,com.free-hdwallpapers.www/wallpapers/animals/mici/595718.jpg|com.free-hdwallpapers.www/wallpaper/animals/husky/270579,1354964606745.0c54fe59c58ddd6b34042ec98171bff7.
> not deployed on any region server.
> ERROR: Region
> referrers,com.free-hdwallpapers.www/wallpapers/anime/mici/78285.jpg|com.free-hdwallpapers.www/wallpaper/anime/wolf-furry/90641,1354964606745.d2451e8db0f2b9546cc42c6d260a2ab8.
> not deployed on any region server.
> ERROR: There is a hole in the region chain between
> com.free-hdwallpapers.www/wallpapers/animals/mici/595718.jpg|com.free-hdwallpapers.www/wallpaper/animals/husky/270579
> and
> com.free-hdwallpapers.www/wallpapers/entertainment/mici/11840.jpg|com.free-hdwallpapers.www/wallpaper/entertainment/new-moon-bella-and-edward/12951.
>  You need to create a new regioninfo and region dir in hdfs to plug the
> hole.

Kevin O'Dell
Customer Operations Engineer, Cloudera

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