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Date:      Tue, 30 Mar 2004 17:01:33 +0900
From:      Jun Kuriyama <kuriyama@imgsrc.co.jp>
To:        Don Bowman <don@sandvine.com>
Cc:        "'current@freebsd.org'" <current@freebsd.org>
Subject:   Re: question about dump performance on a snapshot
Message-ID:  <7misgm931e.wl@black.imgsrc.co.jp>
In-Reply-To: <FE045D4D9F7AED4CBFF1B3B813C85337045D87A8@mail.sandvine.com>
References:  <FE045D4D9F7AED4CBFF1B3B813C85337045D87A8@mail.sandvine.com>

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At Mon, 29 Mar 2004 22:04:36 +0000 (UTC),
Don Bowman wrote:
> I stopped postgresql, did a file system snapshot, and
> restarted postgresql. I then commenced a dump on the
> snap as below:
> 
> dump -0 -a -C 32 -f $dumpfile -u $snapfile

To separate where the problem is, could you try to out to /dev/null?

# dump -0 -a -C 32 -f /dev/null -u $snapfile


-- 
Jun Kuriyama <kuriyama@imgsrc.co.jp> // IMG SRC, Inc.
             <kuriyama@FreeBSD.org> // FreeBSD Project



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