Amanda-Users

Strange interaction sendsize <-> arla (AFS)

2006-01-30 10:49:19
Subject: Strange interaction sendsize <-> arla (AFS)
From: Torsten Harenberg <harenber AT uni-wuppertal DOT de>
To: amanda-users AT amanda DOT org
Date: Mon, 30 Jan 2006 15:55:53 +0100
Dear list,

I've installed an amanda server and client on an alpha machine running NetBSD in these versions:

# pkg_info -a | grep amanda
amanda-common-2.4.4p4nb2 Common libraries and binaries for Amanda
amanda-server-2.4.4p4nb2 Server part of Amanda, a network backup system
amanda-client-2.4.4p4nb1 Client part of Amanda, a network backup system

This alpha servers as our department's backup server (which works fine). But one disk (/wwwhome) should also be backed up from this server itself, which should be no problem.

However, this machine has also arla installed (as we're using AFS for home directories)

# pkg_info -a | grep arla
arla-0.38nb2        Free AFS implementation from KTH


The DLE contains the following:

wpdu2.physik.uni-wuppertal.de /wwwhome {
       comp-user-tar
       exclude "./production"
} 1

This is the ONLY DLE for wpdu2!



Now something strange happens:

if /afs is mounted, the sendsize debug information contains:

sendsize[21534]: argument list: /usr/pkg/bin/gtar --create --file /dev/null --directory /afs --one-file-system --listed-incremental /var/amanda/gnutar-lists/wpdu2.physik.uni-wuppertal.de_wwwhome_alicenext_0.new --sparse --ignore-failed-read --totals --exclude-from /tmp/amanda/sendsize._wwwhome_alicenext.20060126155535.exclude . sendsize[21534]: time 14.927: /usr/pkg/bin/gtar: ./openafs.org: Warning: Cannot stat: Connection timed out
[...]

So, /afs is used instead of /wwwhome, which of course fails after some hours of network transfer.. *g*

If I only umount /afs (nothing else changed), amanda is happy:

sendsize[25443]: argument list: /usr/pkg/bin/gtar --create --file /dev/null --directory /wwwhome --one-file-system --listed-incremental /var/amanda/gnutar-lists/wpdu2.physik.uni-wuppertal.de_wwwhome_0.new --sparse --ignore-failed-read --totals --exclude-from /tmp/amanda/sendsize._wwwhome.20060127095317.exclude .

sendsize[25443]: time 1.516: Total bytes written: 514580480 (491MiB, 361MiB/s)
sendsize[25443]: time 1.519: .....
sendsize[25443]: estimate time for /wwwhome level 0: 1.421
sendsize[25443]: estimate size for /wwwhome level 0: 502520 KB
sendsize[25443]: time 1.519: waiting for /usr/pkg/bin/gtar "/wwwhome" child
sendsize[25443]: time 1.520: after /usr/pkg/bin/gtar "/wwwhome" wait
sendsize[25443]: time 1.554: done with amname '/wwwhome', dirname '/wwwhome', spindle 1

Any ideas?

Thanks and best regards,

   Torsten



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