Date: Thu, 10 Aug 2000 04:23:41 -0700 (PDT) From: <brian@FreeBSD.org> To: brett@lariat.org, brian@FreeBSD.org, freebsd-bugs@FreeBSD.org, brian@FreeBSD.org Subject: Re: conf/20498: All FreeBSD systems trigger massive late-night activity at the same times Message-ID: <200008101123.EAA99038@freefall.freebsd.org>
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Synopsis: All FreeBSD systems trigger massive late-night activity at the same times
State-Changed-From-To: closed->open
State-Changed-By: brian
State-Changed-When: Thu Aug 10 04:21:46 PDT 2000
State-Changed-Why:
I think it might be nice to have a mechanism whereby cron runs
maybe-periodic every 15 minutes between (say) 2:00 and 23:00. The
maybe-periodic script checks a touch file that indicates when the
last such periodic actually ran (say /var/db/periodic-{dai,week,month}ly.run.
If the file has a date of yesterday or before (or this day last week
or month depending on the periodic argument), the script picks a
random number between 1 and 24 (or 1 and 7 or 1 and 31) . If the
file is more than that number of hours (or days) old, the touch-file
is re-touched and the periodic run is invoked.
This resolves the random-start-time issue, and also handles systems
that are shut down every night.
I'll implement this if nobody objects.
Responsible-Changed-From-To: freebsd-bugs->brian
Responsible-Changed-By: brian
Responsible-Changed-When: Thu Aug 10 04:21:46 PDT 2000
Responsible-Changed-Why:
I changed my mind. This can be resolved with a combination of cron and
periodic changes
http://www.freebsd.org/cgi/query-pr.cgi?pr=20498
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