[Linux-cluster] Found unlinked inode

[Borgström Jonas]

-----Original Message-----
From: David Teigland [mailto:teigland at redhat.com] 
Sent: den 26 september 2007 17:52
To: Borgström Jonas
Cc: linux-cluster at redhat.com
Subject: Re: [Linux-cluster] Found unlinked inode

> On Wed, Sep 26, 2007 at 05:40:59PM +0200, Borgstr??m Jonas wrote:
> > Hi again,
> > 
> > I was just able to reproduce the filesystem corruption again. This time
> > four lost zero-sized inodes were found :( And unfortunately
> > mounting+umounting the filesystem didn't make the lost inodes go away.
> > I still have a copy of the corrupted filesystem if there is any more
> > things you want me to test.
>
> I still think this is probably expected and cleaned up properly by gfs.
> When you mount you should see something like this:
>
> GFS: fsid=bull:x.2: jid=2: Trying to acquire journal lock...
> GFS: fsid=bull:x.2: jid=2: Looking at journal...
> GFS: fsid=bull:x.2: jid=2: Done
> GFS: fsid=bull:x.2: Scanning for log elements...
> GFS: fsid=bull:x.2: Found 48 unlinked inodes
> GFS: fsid=bull:x.2: Found quota changes for 0 IDs
> GFS: fsid=bull:x.2: Done
>
> It suspect the unlinked inodes found by fsck are the same as those gfs
> finds in the journal when mounting.  Note that a cleanly shut down journal
> may still have records of unlinked inodes that need to be deallocated.
>

This is what I get when mounting the filesystem:

Trying to join cluster "lock_dlm", "test-db:pg_fs"
Joined cluster. Now mounting FS...
GFS: fsid=test-db:pg_fs.0: jid=0: Trying to acquire journal lock...
GFS: fsid=test-db:pg_fs.0: jid=0: Looking at journal...
GFS: fsid=test-db:pg_fs.0: jid=0: Done
GFS: fsid=test-db:pg_fs.0: jid=1: Trying to acquire journal lock...
GFS: fsid=test-db:pg_fs.0: jid=1: Looking at journal...
GFS: fsid=test-db:pg_fs.0: jid=1: Done

> You may need to mount/unmount all of the journals (so all journals are
> replayed).  something like
>
It doesn't appear to make any difference:

mount /dev/testdb/pg_fs /var/lib/pgsql -o lockproto=lock_nolock,hostdata=jid=0

Trying to join cluster "lock_nolock", "test-db:pg_fs"
Lock_Nolock (built Jul 10 2007 06:40:22) installed
Joined cluster. Now mounting FS...
GFS: fsid=test-db:pg_fs.0: jid=0: Trying to acquire journal lock...
GFS: fsid=test-db:pg_fs.0: jid=0: Looking at journal...
GFS: fsid=test-db:pg_fs.0: jid=0: Done
GFS: fsid=test-db:pg_fs.0: jid=1: Trying to acquire journal lock...
GFS: fsid=test-db:pg_fs.0: jid=1: Looking at journal...
GFS: fsid=test-db:pg_fs.0: jid=1: Done

mount /dev/testdb/pg_fs /var/lib/pgsql -o lockproto=lock_nolock,hostdata=jid=1

Trying to join cluster "lock_nolock", "test-db:pg_fs"
Joined cluster. Now mounting FS...
GFS: fsid=test-db:pg_fs.0: jid=0: Trying to acquire journal lock...
GFS: fsid=test-db:pg_fs.0: jid=0: Looking at journal...
GFS: fsid=test-db:pg_fs.0: jid=0: Done
GFS: fsid=test-db:pg_fs.0: jid=1: Trying to acquire journal lock...
GFS: fsid=test-db:pg_fs.0: jid=1: Looking at journal...
GFS: fsid=test-db:pg_fs.0: jid=1: Done

And running gfs_fsck at this points yields the same errors as before.

Regards,
Jonas