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List:       bacula-bugs
Subject:    [Bacula-bugs] [bacula 0001767]: Poor bacula performance with high
From:       Mantis Bug Tracker <nobody () bugs ! bacula ! org>
Date:       2011-09-30 18:09:10
Message-ID: 69bfa09b64b1c242263f993a852dc368 () bugs ! bacula ! org
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The following issue has been SUBMITTED. 
====================================================================== 
http://bugs.bacula.org/view.php?id=1767 
====================================================================== 
Reported By:                reaper
Assigned To:                
====================================================================== 
Project:                    bacula
Issue ID:                   1767
Category:                   File Daemon
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
====================================================================== 
Date Submitted:             2011-09-30 19:09 BST
Last Modified:              2011-09-30 19:09 BST
====================================================================== 
Summary:                    Poor bacula performance with high rtt
Description: 
I have sd in Germany and fd in USA. When backup is running bacula uses about
5-10 Mbit/s of bandwidth. With iperf test I can see traffic of about 100-120
Mbit/s. Values of Send-Q from ss taken during tests shows that iperf can
increase it up to 3MB while bacula can only do about 128kB.

I've tried to tune rmem_max/wmem_max and some other variables with no effect.
I've also tried to set "Maximum Network Buffer Size" to 8MB also with no effect.

When I created ssh tunnel between hosts and set Address = 127.0.0.1 in client
configuration backup was running at 100Mbit/s speed.

What can be done to resolve this issue?
====================================================================== 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2011-09-30 19:09 reaper         New Issue                                    
======================================================================



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