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Re: [Linux-cluster] GFS reports withdraw from cluster



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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