[Gllug] Staggering cron entries
Tethys
tet at accucard.com
Thu Sep 12 10:38:08 UTC 2002
>I have a dim memory at the back of my mind about
>the possibility or randomly smearing cron entries in time,
>for example in a large cluster you might not want all of
>the nodes downloading something at exactly the same second,
>or making a connection to an HTTP server - or whatever.
>
>I Was sure this was possible, but an RTFM on vixie cron
>didn't turn anything up.
>Someone please enlighten me.
No idea, but as a crude workaround, you could start your cron job
with:
sleep $(($(echo $$ | sum -r | cut -d' ' -f1) % 100))
Obviously, you can increase or decrease the 100 to whatever timescale
you want.
Tet
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