From owner-freebsd-questions@FreeBSD.ORG Mon Jun 19 16:17:55 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 507B016A47B for ; Mon, 19 Jun 2006 16:17:55 +0000 (UTC) (envelope-from derek@computinginnovations.com) Received: from betty.computinginnovations.com (dsl081-142-072.chi1.dsl.speakeasy.net [64.81.142.72]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7D21B43D5D for ; Mon, 19 Jun 2006 16:17:43 +0000 (GMT) (envelope-from derek@computinginnovations.com) Received: from p17.computinginnovations.com (dhcp-10-20-30-100.computinginnovations.com [10.20.30.100]) (authenticated bits=0) by betty.computinginnovations.com (8.13.6/8.12.11) with ESMTP id k5JGGOfs016691; Mon, 19 Jun 2006 11:16:25 -0500 (CDT) Message-Id: <6.0.0.22.2.20060619111155.0253cc00@mail.computinginnovations.com> X-Sender: derek@mail.computinginnovations.com X-Mailer: QUALCOMM Windows Eudora Version 6.0.0.22 Date: Mon, 19 Jun 2006 11:16:16 -0500 To: "Travis Fitch" , From: Derek Ragona In-Reply-To: <200606190148.k5J1mfxY037157@kaur.zehym.com> References: <200606190148.k5J1mfxY037157@kaur.zehym.com> Mime-Version: 1.0 X-ComputingInnovations-MailScanner-Information: Please contact the ISP for more information X-ComputingInnovations-MailScanner: Found to be clean X-ComputingInnovations-MailScanner-From: derek@computinginnovations.com X-Spam-Status: No Content-Type: text/plain; charset="us-ascii"; format=flowed X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: Subject: Re: Sendmail and high kernel CPU utilisation X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Jun 2006 16:17:55 -0000 Travis, This may be from someone mail bombing your server with large email attachments. However, you should increase the logging by sendmail adding or changing the sendmail option: -O LogLevel=80 Usually this is set in /etc/rc.conf. I find 80 is pretty good for showing a lot of detail. Then you can look in your sendmail log in /var/log/maillog for what sendmail is actually doing. Hope this helps. -Derek At 08:56 PM 6/18/2006, Travis Fitch wrote: >Hello, > >I was hoping someone might be able to shed some light on an issue I am >having with sendmail on FreeBSD 5.2.1 running on a Sun V120. > >If you look at the snippet from top you can see that several sendmail >process are casing the kernel to use ~ 65% of the CPU. I am having some >issues profiling what is causing this issue. You can also see the load is >quite high. > >last pid: 72705; load averages: 12.22, 12.29, 12.00 >up 1+06:09:44 11:42:28 >86 processes: 14 running, 72 sleeping >CPU states: 35.5% user, 0.0% nice, 64.5% system, 0.0% interrupt, 0.0% >idle >Mem: 148M Active, 104M Inact, 73M Wired, 520K Cache, 60M Buf, 131M Free >Swap: 2057M Total, 102M Used, 1954M Free, 4% Inuse > > PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND >20958 root 122 0 23368K 5472K RUN 44:32 8.64% 8.64% sendmail >62864 root 122 0 23432K 5528K RUN 10:45 8.54% 8.54% sendmail >70522 root 122 0 23448K 5544K RUN 2:43 8.35% 8.35% sendmail >91279 smmsp 122 0 12224K 3832K RUN 60:17 8.25% 8.25% sendmail >66302 root 122 0 23392K 5472K RUN 8:36 8.25% 8.25% sendmail >16850 root 122 0 23432K 5528K RUN 51:31 8.20% 8.20% sendmail >66306 root 121 0 23448K 5528K RUN 8:34 8.11% 8.11% sendmail >68330 root 121 0 23432K 5528K RUN 5:37 8.11% 8.11% sendmail >51654 root 121 0 23392K 5472K RUN 16:40 8.06% 8.06% sendmail >66377 root 121 0 23392K 5472K RUN 8:22 8.01% 8.01% sendmail >69364 root 121 0 23432K 5504K RUN 3:50 8.01% 8.01% sendmail > > >The other interesting thing is that a lot of the SMTP connections hang >around for quite some time. These connection just keep building up and >slowly bring the system to a crawl. > >correo:root# ps aux| grep -v grep | grep sendmail >root 62864 8.0 1.1 23432 5528 ?? R 10:06AM 10:49.58 sendmail: >k5J06CMN062864 mx02.globalcenter.net.au [203.89.192.35]: DATA (sendmail) >root 66306 8.0 1.1 23448 5528 ?? R 10:18AM 8:38.72 sendmail: >k5J0IoxC066306 omta02ps.mx.bigpond.com [144.140.83.154]: DATA (sendmail) >root 66377 7.9 1.1 23392 5472 ?? R 10:20AM 8:26.25 sendmail: >k5J0KHGa066377 vpn02.commandhub.net [203.89.202.122]: DATA (sendmail) >root 20958 8.0 1.1 23368 5472 ?? R 5:14AM 44:36.44 sendmail: >k5IJF2bd020958 [83.173.162.41]: DATA (sendmail) >root 68330 8.0 1.1 23432 5528 ?? R 10:43AM 5:41.33 sendmail: >k5J0hOAk068330 mx01.globalcenter.net.au [203.89.192.34]: DATA (sendmail) >root 69364 8.0 1.1 23432 5504 ?? R 10:59AM 3:54.45 sendmail: >k5J0xmg6069364 omta05ps.mx.bigpond.com [144.140.83.195]: DATA (sendmail) >root 70522 8.0 1.1 23448 5544 ?? R 11:11AM 2:47.79 sendmail: >k5J1BY7Y070522 mx01.globalcenter.net.au [203.89.192.34]: DATA (sendmail) >root 66302 8.0 1.1 23392 5472 ?? R 10:18AM 8:40.20 sendmail: >k5J0If8t066302 vpn02.commandhub.net [203.89.202.122]: DATA (sendmail) >smmsp 91279 8.0 0.7 12224 3832 ?? Rs 4:01AM 60:20.92 sendmail: >Queue runner@00:10:00 for /var/spool/clientmqueue (sendmail) >root 16850 8.0 1.1 23432 5528 ?? R 4:30AM 51:34.91 sendmail: >k5IIUaWm016850 [201.150.67.51]: DATA (sendmail) >root 51654 8.0 1.1 23392 5472 ?? R 9:37AM 16:44.52 sendmail: >k5INbbYo051654 vpn02.commandhub.net [203.89.202.122]: DATA (sendmail) >root 91276 0.0 1.0 22928 5032 ?? Ss 4:01AM 0:03.05 sendmail: >rejecting connections on daemon MSA: load average: 12 (sendmail) > >I have rebuilt the world and kernel to see if the resolves my issue, but >alas no luck. > >Hopefully someone will be able to point be in the right direction. > >Regards, > >Travis > >_______________________________________________ >freebsd-questions@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-questions >To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" > >-- >This message has been scanned for viruses and >dangerous content by MailScanner, and is >believed to be clean. >MailScanner thanks transtec Computers for their support. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. MailScanner thanks transtec Computers for their support.