Janine,
the values make sense, since the 4.5.1 does not omit the cleanups
but instead of doing these at the same time, it distributes these
(by default by a randomization factor of 20%). The longer the
server runs the spikes should go down, since the cleanup
times will differ more.
Can you post the config file from that site?
-gustaf neumann
Janine Sisk schrieb:
Ok... I just upgraded all of the sites on this system.
Things look a bit better, but I still occasionally see an nsd pop up
to 50%+ for a few seconds. It doesn't seem to last as long, but that
may just be because it's Sunday (and Mother's Day in the US), so
traffic is always going to be a bit lighter.
Is there anything else I can try?
janine
On May 10, 2009, at 4:54 AM, Gustaf Neumann wrote:
Janine,
my recommendation is to give aolserver 4.5.1 a try. We had a similar
observation
especially when many connection threads are configured. Depending on
your query-patterns, it might easily happen with earlier versions
that more or less all connection threads will be refreshed
(restarted) at the same time. The more threads are defined the
worse it will become. Aolserver 4.5.1 addresses this problem by
providing a randomization spread.
best regards
-gustaf neumann
Janine Sisk schrieb:
I host a couple of sites based on an old version of OpenACS with a
proprietary (and fairly primitive) CMS. I didn't write any of it,
and up to now have not had to look at things very closely. But a
combination of increased traffic and more stuff running on the
system has made performance problems that were there all along rear
some really ugly heads, and I need to figure out what's going on.
From watching the output of top I can see that both Postgres and
AOLserver are doing their share of CPU hogging. I've just turned on
log_min_duration_statement in Postgres, to see where it's spending
most of its time. I'm less sure of what to do for AOLserver. I've
increased maxconnections and maxthreads and that seemed to help a
little, but not enough. It has been a long time since I last needed
to tune AOLserver and I'm a bit at a loss. Any suggestions on where
to start? I'd love to know what it's doing when it suddenly jumps
up to using 86% of the cpu, then drops back to almost nothing again.
BTW, this is AOLserver 4.0.10, with this patch applied:
http://sourceforge.net/tracker/index.php?func=detail&group_id=3152&atid=103152&aid=1615787
(it didn't seem to help) I can try upgrading if necessary but
nothing I've read has made me think that 4.5 will give me any better
performance, so for the moment I'm erring on the side of changing as
little as possible.
thanks,
janine
---
Janine Sisk
President/CEO of furfly, LLC
503-693-6407
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---
Janine Sisk
President/CEO of furfly, LLC
503-693-6407
--
AOLserver - http://www.aolserver.com/
To Remove yourself from this list, simply send an email to
<lists...@listserv.aol.com> with the
body of "SIGNOFF AOLSERVER" in the email message. You can leave the
Subject: field of your email blank.
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