Bacula-users

[Bacula-users] Performance with latent networks

2011-09-29 09:38:38
Subject: [Bacula-users] Performance with latent networks
From: reaper <bacula-forum AT backupcentral DOT com>
To: bacula-users AT lists.sourceforge DOT net
Date: Thu, 29 Sep 2011 04:20:13 -0700
Hello.

I saw this post recently http://www.mail-archive.com/bacula-users AT 
lists.sourceforge DOT net/msg47393.html and it seems I'm affected by this 
problem too. Bacula shows extremely low performance in networks with high rtt. 
I have sd in Germany and client in USA. Bacula can make backups on speeds 
between 5 to 10 Mbit/s which is too slow as backups are up to 600 GB. With 
simple iperf test I can achieve transfer rates about 100-120 Mbit/s. Why bacula 
cannot do the same? Compression does not affect transfer speed. Client has 
plenty of free CPU/memory.

I've made ssh tunnel between hosts and set Address = 127.0.0.1 in Storage 
section. With this configuration I can see backups are running at speeds about 
100 Mbit/s.

Bacula version is 5.0.2 from Debian Lenny backports.

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