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List:       redhat-linux-cluster
Subject:    Re: [Linux-cluster] GFS reports withdraw from cluster
From:       Bob Peterson <rpeterso () redhat ! com>
Date:       2008-03-28 19:43:57
Message-ID: 1206733437.2741.170.camel () technetium ! msp ! redhat ! com
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On Fri, 2008-03-28 at 15:49 +0100, Ewald Beekman wrote:
> We get these kinds of errors:
> Mar 27 22:23:15 idefix kernel: GFS: fsid=alpha_cluster:orabck.0: fatal: invalid \
>                 metadata block
> Mar 27 22:23:15 idefix kernel: GFS: fsid=alpha_cluster:orabck.0:   bh = 16659526 \
>                 (type: exp=5, found=4)
> Mar 27 22:23:15 idefix kernel: GFS: fsid=alpha_cluster:orabck.0:   function = \
>                 gfs_get_meta_buffer
> Mar 27 22:23:15 idefix kernel: GFS: fsid=alpha_cluster:orabck.0:   file = \
>                 /builddir/build/BUILD/gfs-kernel-2.6.9-75/up/src/gfs/dio.c, line = \
>                 1223
> Mar 27 22:23:15 idefix kernel: GFS: fsid=alpha_cluster:orabck.0:   time = \
> 1206652995 Mar 27 22:23:15 idefix kernel: GFS: fsid=alpha_cluster:orabck.0: about \
>                 to withdraw from the cluster
> Mar 27 22:23:15 idefix kernel: GFS: fsid=alpha_cluster:orabck.0: waiting for \
>                 outstanding I/O
> Mar 27 22:23:15 idefix kernel: GFS: fsid=alpha_cluster:orabck.0: telling LM to \
>                 withdraw
> Mar 27 22:23:15 idefix kernel: lock_dlm: withdraw abandoned memory
> and then the filesystem is gone :-(

Hi Ewald,

This likely means you have file system corruption of some kind.
There are many ways a GFS file system can get corrupted through no
fault of GFS.  Please see the following entry in the FAQ:

http://sources.redhat.com/cluster/wiki/FAQ/GFS#gfs_consistency

At any rate, I recommend unmounting it from all nodes and
running gfs_fsck (from one node).

Regards,

Bob Peterson
Red Hat GFS


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