Date: Mon, 11 Jan 1999 16:59:31 -0800 (PST) From: Matthew Dillon <dillon@apollo.backplane.com> To: Bernie Doehner <bad@wireless.net> Cc: hackers@FreeBSD.ORG, questions@FreeBSD.ORG Subject: Re: limiting per process swap space utilization like Solaris ulimit? Message-ID: <199901120059.QAA98452@apollo.backplane.com>
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:Hi:
:
:Due to a problem with qmail running away, I'd like to be able to limit the
:per process swap space utilization under FreeBSD.
:
:How does one do this?
:
:Under Solaris ulimit provides a good interface to setting this limit, but
:I could find no such limit (either setable via a program, or a system
:call).
:
:Thanks.
:
:Bernie
You can set the datasize resource limit
apollo:/usr/src/sys# limit
cputime unlimited
filesize unlimited
datasize 524288 kbytes <----------
stacksize 65536 kbytes
coredumpsize unlimited
memoryuse 32768 kbytes
descriptors 1024
memorylocked unlimited
maxproc 200
That's about as close as you can get. Try setting it to something
like 20m.
The real solution is to figure out why qmail is blowing up in the first
place. If it's a matter of too many qmail processes running, that's
a different problem that a per-process resource limit will not solve.
I don't know what the solution under qmail is for that. Under sendmail
it's relatively easy to limit the maximum number of running sendmail
processes through the MaxDaemonChildren option.
-Matt
Matthew Dillon Engineering, HiWay Technologies, Inc. & BEST Internet
Communications & God knows what else.
<dillon@backplane.com> (Please include original email in any response)
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