Re: fsync on large files

Riley Williams (rhw@BigFoot.Com)
Sat, 13 Feb 1999 22:44:48 +0000 (GMT)


Hi Alan, Simon.

>> There's no way in hell I'd run syslogd with fsync() enabled on a
>> machine that longs anything more than 1 line per minute. Disable
>> fsync()ing in syslogd by prepending "-" to each log file you want
>> to turn it off for.

> I know that, and I've already done that as a temporary solution.
> But syslogd syncs every line written for a good reason, namely
> that if the machine crashes you don't want to lose the last few
> lines that were logged. They are the most likely place to look
> for suspicious happenings. So I want a proper fix, not a
> "disable the safety feature" kludge.

It sounds like what's needed is a facility to sync just a particular
file, combined with more frequent rotation of the logs...

Best wishes from Riley.

---
 * ftp://ftp.MemAlpha.cx/pub/rhw/Linux
 * http://www.MemAlpha.cx/~rhw/kernel.versions.html

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