Bacula-users

[Bacula-users] How to troubleshoot a slow client, when there is no obvious answer

2013-01-22 14:40:05
Subject: [Bacula-users] How to troubleshoot a slow client, when there is no obvious answer
From: dweimer <dweimer AT dweimer DOT net>
To: Bacula Users <bacula-users AT lists.sourceforge DOT net>
Date: Tue, 22 Jan 2013 13:37:43 -0600
If you have checked disk I/O, CPU, memory, network, on both the client 
and the server, all seem great, both from a statistics look, showing all 
running normally, with low use.  Verified with read/write test on local 
disks, remote through he network, using regular file copies (via SMB) 
and iperf on both client and server.  However my backups which ran last 
weeks full backup in 3.5hrs at 26mbps, are now running at under 4mbps 
for this week.  I have stopped and restarted things, no change.  Every 
test I can think of shows everything is running great, but the backups 
are going to take more than a day at this rate.  This isn't a new setup, 
I have been doing this for some time, using the same server / client 
combination.  The only other client on the server ran normally, but it 
uses gzip (the one running slow doesn't) and never ran faster than about 
6mbps, with between 55-65% compression.  The local catalog backup ran at 
60mpbs, which is almost as fast as dd if=/dev/zero runs against the 
drive I write my backup volumes to, as the dir and sd are on the same 
machine.

Could I possibly be having a Database issue, I am using PostgreSQL, 
that could cause this, possibly waiting on records to be written to the 
catalog?  If so how could I find out?  Anything else anyone can think of 
to check?

-- 
Thanks,
    Dean E. Weimer
    http://www.dweimer.net/

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