From: Ingo Schwarze <schwarze@usta.de>
To: tech@mdocml.bsd.lv
Subject: Re: half-atomically rebuild databases
Date: Sun, 1 Jan 2012 17:29:58 +0100 [thread overview]
Message-ID: <20120101162958.GB5307@iris.usta.de> (raw)
In-Reply-To: <20120101155508.GA4516@britannica.bec.de>
Hi Joerg,
Joerg Sonnenberger wrote on Sun, Jan 01, 2012 at 04:55:08PM +0100:
> On Sun, Jan 01, 2012 at 04:45:38PM +0100, Ingo Schwarze wrote:
>> This is not perfect because the mandocdb process might get -KILLed
>> between the two renames, but i don't see a syscall anywhere to
>> atomically rename *two* files.
> Why do you have to?
There are two files to rename(2): whatis.{db,index}.
> You can create the new file under temporary name in
> the same directory and rename it to the normal file name.
That's exactly what the patch i sent does:
Creating both files under temporary names in the same directory
and rename both to the normal file names when both are ready.
Yours,
Ingo
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next prev parent reply other threads:[~2012-01-01 16:29 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-01 15:45 Ingo Schwarze
2012-01-01 15:55 ` Joerg Sonnenberger
2012-01-01 16:29 ` Ingo Schwarze [this message]
2012-01-03 12:39 ` Kristaps Dzonsons
2012-01-04 0:29 ` Ingo Schwarze
2012-01-03 12:45 ` Joerg Sonnenberger
2012-01-03 13:07 ` Kristaps Dzonsons
2012-01-03 13:19 ` Joerg Sonnenberger
2012-01-03 13:45 ` Kristaps Dzonsons
2012-01-03 13:49 ` Joerg Sonnenberger
2012-01-03 23:59 ` Ingo Schwarze
2012-01-04 0:09 ` Ingo Schwarze
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