postfix + uucp -> system stress test

Andreas Jellinghaus (ajdungeon.inka.de)
Thu, 25 Nov 1999 20:38:17 +0100

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mail incoming via uucp is very bursty: the mail is queued till
a transfer (every few hours here), is still queued on the target system
till all messages are received, and then uucp fired all messages
to the mta.

with smail and exim i configured them to spool incoming mail, and deliver
every 5 minutes.

but now with postfix, again the system tried to deliver ASAP, so uucp
starts serial a lot of processes, but postfix in parallel also starts
a lot of processes. together this makes my p120 very slow.

how can i calm the situation ? parallel delivery is fine, but together
with a bursty mail delivery its a problem here.

i was the victim of an ugly tailor uucp race condition this morning,
and i hope it will not happen again if i can remove this stress from
the system.

andreas

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