Bacula-users

Re: [Bacula-users] Fwd: Extremly slow backup

2011-01-10 09:48:56
Subject: Re: [Bacula-users] Fwd: Extremly slow backup
From: Marcin Krol <hawk AT pld-linux DOT org>
Date: Mon, 10 Jan 2011 15:46:30 +0100
> Additionally, if the emailserver is using mdir format there are
> thousands (millions?) of tiny files and there's a fixed overhead in
> opening each file no matter what its size is - that results in slow
> speeds when handling lots of small files.

I just sent small test job from my mail server - 15 GB in 1 directory 
and 5 files. After 30 minutes it has transfered just 2 GBs to spool with 
average transfer rate at 1.6 MB/s. So slowness is not caused by dealing 
with lots of files.

I'm thinking that maybe CentOS compilation of bacula client is somehow 
broken. I've used .src.rpm downloaded from bacula.org to build my 
packages. OTOH I'm using exactly same packages on two more machines and 
they work fine.

M.

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