At Fri, 1 Jul 2011 01:39:19 +0800 CentOS mailing list <centos@xxxxxxxxxx> wrote: > > On 6/30/11, Les Mikesell <lesmikesell@xxxxxxxxx> wrote: > > Again, fixable by not sharing the disk the guest uses with the disk the host > > needs to load programs from... The disk head is always going to be in the > > wrong place. > > Well, let's just say my original recommendation specifications for > this particular set was a HP ML110G6 with 8GB, 2x 250GB for the host > and 2x1.5TB storage drives, told them the extra memory and drives > could be bought OTS so they don't have to pay HP prices for that. > > What I end up working with is a no-brand desktop quad core with a pair > of 500GB... so the chances of convincing them to fork out extra for > hardware isn't good. Unfortunately I'm stuck with making things work > because managing the server was part of the contract sold with the > apps. > > > > But, odds are that the source of the problem is starting too many mail > > delivery programs, especially if they, or the user's local procmail, starts a > > spamassassin instance per message. Look at the mail logs for a problem time > > to see if you had a flurry of messages coming in. Sendmail/MimeDefang is > > fairly good at queuing the input and controlling the processes running at once but > > even with that you may have to throttle the concurrent sendmail processes. > > Does it make a difference if I'm running Exim instead of sendmail/MimeDefang? Probably not. I suspect that Exim also has a throttling parameter setting. > Right now it doesn't look like an mail run, more like a httpd run > because it's starting to look like a large number of httpd threads was > spawned just before that. OK, there are probably settings for Apache to run fewer threads. Probably better have a "Server too busy" type of message than a wedged server. (And most likely the extra httpd threads will just be spambots of some sort anyway -- who cares if they get tossed...) > > Unfortunately, I also discovered that logrotate was wrongly configured > and I only have daily logs. Fixed that, hopefully, and shall see if I > get something better to work on if it strikes again. > _______________________________________________ > CentOS mailing list > CentOS@xxxxxxxxxx > http://lists.centos.org/mailman/listinfo/centos > > -- Robert Heller -- 978-544-6933 / heller@xxxxxxxxxxxx Deepwoods Software -- http://www.deepsoft.com/ () ascii ribbon campaign -- against html e-mail /\ www.asciiribbon.org -- against proprietary attachments _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos