Amanda-Users

multiple gzip on same data!?

2005-06-29 12:09:30
Subject: multiple gzip on same data!?
From: Graeme Humphries <graeme.humphries AT vcom DOT com>
To: amanda-users AT amanda DOT org
Date: Wed, 29 Jun 2005 09:57:48 -0600
Hi guys,

I've got my configuration mostly sorted out now, so it's doing what I
want it to. However, I've got a question about some weird behavior I'm
seeing on my AMANDA server. I'm using the srvcompress option because the
servers I'm backing up from are rather slow, and when backing up, I see
the following on the AMANDA server:

9675 ?        S      0:00  \_ /USR/SBIN/CRON
 9676 ?        Ss     0:00      \_ /bin/sh /usr/sbin/amdump weekly
 9685 ?        S      0:01          \_ /usr/lib/amanda/driver weekly
 9686 ?        S      4:24              \_ taper weekly
 9687 ?        S      0:59              |   \_ taper weekly
 9699 ?        S      9:45              \_ dumper0 weekly
10629 ?        S     96:19              |   \_ /bin/gzip --fast
10630 ?        S      0:00              |   \_ /bin/gzip --best
 9700 ?        S      6:52              \_ dumper1 weekly
10086 ?        S    149:32              |   \_ /bin/gzip --fast
10087 ?        S      0:21              |   \_ /bin/gzip --best
 9701 ?        S      0:00              \_ dumper2 weekly
 9702 ?        S      0:00              \_ dumper3 weekly

Now, why oh why is it doing *two* gzip operations on each set of data!?
It looks like the gzip --best isn't actually getting that much running
time, so is there something going on here that's faking me out, and it
isn't *actually* gzipping everything twice? :)

Graeme

-- 
Graeme Humphries (graeme.humphries AT vcom DOT com)
Linux Administrator
VCom Inc.
(306) 955-7075 ext 485

My views and comments do not necessarily reflect the views of my
employer.


<Prev in Thread] Current Thread [Next in Thread>