From: | Douglas J Hunley <doug(at)hunley(dot)homeip(dot)net> |
---|---|
To: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com> |
Cc: | pgsql-performance(at)postgresql(dot)org |
Subject: | Re: 7 hrs for a pg_restore? |
Date: | 2008-02-19 18:58:38 |
Message-ID: | 200802191358.38614.doug@hunley.homeip.net |
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Thread: | |
Lists: | pgsql-performance |
On Tuesday 19 February 2008 13:12:54 Joshua D. Drake wrote:
> > I spent a whopping seven hours restoring a database late Fri nite for
> > a client. We stopped the application, ran pg_dump -v -Ft -b -o $db >
> > ~/pre_8.3.tar on the 8.2.x db, and then upgrading the software to
> > 8.3. I then did a pg_restore -v -d $db ./pre_8.3.tar and watched it
> > positively crawl. I'll grant you that it's a 5.1G tar file, but 7
> > hours seems excessive.
> >
> > Is that kind of timeframe 'abnormal' or am I just impatient? :) If
> > the former, I can provide whatever you need, just ask for it.
> > Thanks!
>
> 7 hours for 5.1 G is excessive. It took me 11 hours to do 220G :). It
> would be helpful if we knew what the machine was doing. Was it IO
> bound? How much ram does it have? Is it just a single HD drive? What
> are your settings for postgresql?
It wasn't doing anything but the restore. Dedicated DB box
postgresql.conf attached
system specs:
Intel(R) Xeon(TM) CPU 3.40GHz (dual, so shows 4 in Linux)
MemTotal: 8245524 kB
The db resides on a HP Modular Storage Array 500 G2. 4x72.8Gb 15k rpm disks. 1
raid 6 logical volume. Compaq Smart Array 6404 controller
--
Douglas J Hunley (doug at hunley.homeip.net) - Linux User #174778
http://doug.hunley.homeip.net
We do nothing *FOR* users. We do things *TO* users. It's a fine distinction,
but an important one all the same.
Attachment | Content-Type | Size |
---|---|---|
postgresql.conf | text/plain | 16.2 KB |
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