Amanda-Users

Re: automount and raw devices

2007-12-20 13:59:40
Subject: Re: automount and raw devices
From: Jean-Francois Malouin <Jean-Francois.Malouin AT bic.mni.mcgill DOT ca>
To: "Dustin J. Mitchell" <dustin AT zmanda DOT com>
Date: Thu, 20 Dec 2007 13:52:10 -0500
* Dustin J. Mitchell <dustin AT zmanda DOT com> [20071220 13:05]:
> On Dec 20, 2007 11:39 AM, Jean-Francois Malouin
> <Jean-Francois.Malouin AT bic.mni.mcgill DOT ca> wrote:
> > Dec 20 10:14:24 grumio automount[7198]: failed to mount /data/rbohbot
> > Dec 20 10:14:24 grumio automount[7199]: failed to mount 
> > /data/bohbot/rbohbot1
> > ...
> > about 10 of them.
> >
> > On the client runtar was spawn at 10:14:24
> >
> > ~# cat /tmp/amanda-av/client/right2/runtar.20071220101424.debug
> > runtar: debug 1 pid 7218 ruid 666 euid 0: start at Thu Dec 20 10:14:24 2007
> > runtar: time 0.000: version 2.5.2p1
> > /bin/tar version: tar (GNU tar) 1.14
> >
> > config: right2
> > runtar: debug 1 pid 7218 ruid 0 euid 0: rename at Thu Dec 20 10:14:24 2007
> > running: /bin/tar: 'gtar' '--create' '--file' '-' '--directory'
> > '/export_raid12/bicadmin1/amanda-rsync' '--one-file-system'
> > '--listed-incremental'
> > '/opt/amanda/var/amanda/right2/gnutar-lists/grumio_export_raid12_bicadmin1_amanda-rsync_0.new'
> > '--sparse' '--ignore-failed-read' '--totals' '.'
> > runtar: time 0.061: pid 7218 finish time Thu Dec 20 10:14:24 2007
> 
> This 'runtar' invocation is for a different DLE --
> /export_raid12/bicadmin1/amanda-rsync.  It's possible this is an error
> in amanda or tar, but I would need to see a rundump, sendbackup, or
> sendsize log that either includes the 'r', or includes the DLE without
> the 'r' (in which case we can look to a bug in tar).  While I'm asking
> for info -- what systems are these?

I've attached the relevent sendbackup debug file but nothing
looks suspicious in it, at least to me. 
Both client and server are Debian/etch 64bit systems running 
2.6.21.5-i686-64-smp and 2.6.22.2-i686-64-smp respectively.

> My suspicion remains with the automounter, and that it is for some
> reason falling back to the 'r'-bearing fiename when the normal mount
> fails.  If Amanda or tar were doing this, then it would not be
> sporadic.

It happens on all the clients all the time and it's not sporadic at
all. I've also seen the same behaviour on a irix server/client. 
Gnutar is 1.14 on Debian and 1.13.25 on irix.

Looking further in the syslogs I can correlate 100% between the
automount failures and either sendbackup or sendsize starting. 

strange. jf

> 
> Dustin
> 
> -- 
> Storage Software Engineer
> http://www.zmanda.com

-- 
<° ><

Attachment: sendbackup.20071220101424.debug
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