atom feed8 messages in org.freebsd.freebsd-questionssudden peak in load average
FromSent OnAttachments
Zbigniew SzalbotFeb 27, 2008 10:59 am 
Kris KennawayFeb 27, 2008 11:03 am 
Zbigniew SzalbotFeb 27, 2008 11:31 am 
Mark TinguelyFeb 27, 2008 1:46 pm 
Zbigniew SzalbotFeb 27, 2008 3:39 pm 
Bart SilverstrimFeb 27, 2008 3:58 pm 
Mark TinguelyFeb 27, 2008 5:15 pm 
Bart SilverstrimFeb 27, 2008 5:20 pm 
Subject:sudden peak in load average
From:Bart Silverstrim (bsil@chrononomicon.com)
Date:Feb 27, 2008 5:20:23 pm
List:org.freebsd.freebsd-questions

Mark Tinguely wrote:

Is it possible that there's a message in your queue that's *being processed*, so it may have arrived earlier than near that time and causes the spike?

Bart is correct that the SA processing occurs before sendmail log entry.

Lately, I have had problems with the latest spamass-milter. Occasionally, something is forking off another spamass-milter and the original one is in some tight loop eating processor time. I am not sure if it is the newer spamass-milter or the fact that I also added the dkim-milter into the mix.

FYI: I sent to the original questioner a crude C program to monitor his current loadaverage. This monitor will save the output of the command "ps -aux" to a timestamped temporary file when the current loadaverage exceeds a defined amount (15.0).

Another thing to look at would be the output of something like lsof, so that if it is spamassassin, maybe there's a possibility that it could be narrowed down to a particular temporary file unless there's another way to see if there's a particular message chewing away on SA's analysis?

It doesn't take a big message to skew SA asunder if it has the right bit of information in it...