Return-Path: Delivered-To: apmail-httpd-dev-archive@www.apache.org Received: (qmail 13717 invoked from network); 20 Oct 2005 20:21:23 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (209.237.227.199) by minotaur.apache.org with SMTP; 20 Oct 2005 20:21:23 -0000 Received: (qmail 41564 invoked by uid 500); 20 Oct 2005 20:21:18 -0000 Delivered-To: apmail-httpd-dev-archive@httpd.apache.org Received: (qmail 41498 invoked by uid 500); 20 Oct 2005 20:21:17 -0000 Mailing-List: contact dev-help@httpd.apache.org; run by ezmlm Precedence: bulk Reply-To: dev@httpd.apache.org list-help: list-unsubscribe: List-Post: List-Id: Delivered-To: mailing list dev@httpd.apache.org Received: (qmail 41487 invoked by uid 99); 20 Oct 2005 20:21:17 -0000 Received: from asf.osuosl.org (HELO asf.osuosl.org) (140.211.166.49) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 20 Oct 2005 13:21:17 -0700 X-ASF-Spam-Status: No, hits=0.0 required=10.0 tests= X-Spam-Check-By: apache.org Received-SPF: pass (asf.osuosl.org: local policy) Received: from [66.111.4.27] (HELO out3.smtp.messagingengine.com) (66.111.4.27) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 20 Oct 2005 13:21:17 -0700 Received: from frontend1.internal (mysql-sessions.internal [10.202.2.149]) by frontend1.messagingengine.com (Postfix) with ESMTP id 02978CD746C for ; Thu, 20 Oct 2005 16:20:55 -0400 (EDT) Received: from frontend2.messagingengine.com ([10.202.2.151]) by frontend1.internal (MEProxy); Thu, 20 Oct 2005 16:20:55 -0400 X-Sasl-enc: N22l0cOH/76eczySMU8PH4LoTuSvW4kziTbsVNt7p92g 1129839654 Received: from [132.211.187.132] (unknown [132.211.187.132]) by frontend2.messagingengine.com (Postfix) with ESMTP id 1287E570394 for ; Thu, 20 Oct 2005 16:20:53 -0400 (EDT) Message-ID: <4357FC2A.3050903@slive.ca> Date: Thu, 20 Oct 2005 16:20:58 -0400 From: Joshua Slive User-Agent: Thunderbird 1.4 (Windows/20050908) MIME-Version: 1.0 To: dev@httpd.apache.org Subject: Re: mod_mbox spinning processes on ajax References: <4352AFEA.2090503@slive.ca> <20051016230859.GE16817@bulix.org> <4353B8FC.3090104@slive.ca> <20051018053432.GK17803@bulix.org> In-Reply-To: <20051018053432.GK17803@bulix.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org X-Spam-Rating: minotaur.apache.org 1.6.2 0/1000/N Maxime Petazzoni wrote: >>>> There appear to be some httpd processes spinning on cpu on ajax. >>>> Attaching with gdb and asking for a backtrace gives me something >>>> like this: > This email is 457 kbytes long, maybe it just take some time to iterate > through 450k+ characters. Maybe we could find a better algorithm ? It may well be that the problem is just a poorly performing algorithm. But it should be a priority to be fixed. There are over 30 httpd processes on cpu on ajax at the moment, some having used several hundred minutes of cpu time (and mostly in the range of 25-50MB of RAM). And every one that I try is working on mbox_wrap_text, usually on an svn-commit notice email. This is probably triggered by a robot, but regardless, it needs to be fixed. I've dropped a few more core files in ajax:/raid1/httpd-cores. Joshua.