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Re: Best compressed archive_command on Linux?

From: "Phillip Smith" <phillip(dot)smith(at)weatherbeeta(dot)com(dot)au>
To: <pgsql-admin(at)postgresql(dot)org>
Subject: Re: Best compressed archive_command on Linux?
Date: 2007-04-12 05:35:15
Message-ID: 00e101c77cc4$58f2cd50$9b0014ac@wbaus090 (view raw or flat)
Thread:
Lists: pgsql-admin
I experience similar on my nightly backups - tar exits with status '2' but
for the life of me I cannot work out WHAT exit 2 means. It still works fine,
but the non-zero return it just annoying.

If you're just compressing (ie, not creating a tar-type archive, just either
GZip (gzip) or BZip2 (bzip2) the WAL files.

BZip2 has incredible compression, but at the expense of speed of course.

Cheers,
~p

-----Original Message-----
From: pgsql-admin-owner(at)postgresql(dot)org
[mailto:pgsql-admin-owner(at)postgresql(dot)org] On Behalf Of Eduardo J. Ortega
Sent: Thursday, 12 April 2007 02:50
To: pgsql-admin(at)postgresql(dot)org
Subject: Re: [ADMIN] Best compressed archive_command on Linux?

sometimes tar  (gnu tar) exited with nonzero status for no reason on my 
system... no error msg or anything. I recommend something called star.

On Wednesday 11 April 2007, Sean Murphy wrote:
> I'm in the process of moving an 8.2 server from Win32 to Ubuntu Linux.
> On Win32, I implemented WAL archiving with the archive_command
> "rar a -ep -m5 -s -t -dh w:/%f.rar %p"
>
> Anyway, I'm going to use WAL archiving on the new server, and need the
> files to be compressed. My first inclination is to use
> "tar -czf /walarchive/%f.tar.gz %p > /dev/null"
>
> Before I go with that, though, I was wondering if anybody had any
> specific experience / advice with a better command, reasons why this
> command might fail zero or succeed nonzero, or additional/different
> options for tar that would yield better results.
>
> Thanks,
> Sean
>
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-- 
Eduardo J. Ortega - Linux user #222873 
"No fake - I'm a big fan of konqueror, and I use it for everything." --
Linus 
Torvalds

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