Date: Thu, 21 Feb 2008 12:57:38 -0500 From: Forrest Aldrich <forrie@forrie.com> To: Derek Ragona <derek@computinginnovations.com> Cc: freebsd-questions@freebsd.org Subject: Re: 6.3-STABLE Apache 2.0 uses high CPU when restarted.... Message-ID: <47BDBB92.4070505@forrie.com> In-Reply-To: <6.0.0.22.2.20080221094221.0253fe28@mail.computinginnovations.com> References: <47BD8BE3.8070209@forrie.com> <6.0.0.22.2.20080221094221.0253fe28@mail.computinginnovations.com>
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Derek Ragona wrote: > At 08:34 AM 2/21/2008, Forrest Aldrich wrote: >> I recently recomplied the apache20 port (updated) with no >> compile-time changes. Since that time, I noticed it was hogging 98% >> of the CPU and hanging. I adjusted the various Max/Min server levels >> and that seemed to fix it - except at midnight when the logs are >> rotated and the server is sent a HUP signal. When that happens, all >> the processes die except one and it hangs at 90% CPU. I kill it off, >> restart it manually and it behaves fine. >> >> Here's a recent output of "top" : >> >> PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND >> 94711 www 1 117 0 41036K 13852K RUN 0 1:43 98.69% httpd >> >> The only thing that has changed on the system is an upgrade from >> MySQL-4.1 to MySQL-5.1, which I wouldn't expect httpd to be affected >> by, but I could be wrong. To be sure, I recompiled it, PHP and any >> dependencies that PHP has, but I'm still seeing the same result. >> >> I tried compiling MySQL-5.1 with and without pthreads and see the >> same CPU consumption issue. >> >> I wonder if I've hit a bug or if I've possibly messed something up >> (as careful as I've been anyway). >> >> >> >> Thanks, >> >> Forrest > > What is showing in the apache logs when this happens? > > -Derek The only thing I see are multiple lines of these errors in error_log: [Thu Feb 21 00:00:12 2008] [error] child process 63633 still did not exit, sending a SIGKILL [Thu Feb 21 00:00:12 2008] [error] child process 63634 still did not exit, sending a SIGKILL [Thu Feb 21 00:00:12 2008] [error] child process 63635 still did not exit, sending a SIGKILL [Thu Feb 21 00:00:12 2008] [error] child process 63636 still did not exit, sending a SIGKILL [Thu Feb 21 00:00:12 2008] [error] child process 63637 still did not exit, sending a SIGKILL [Thu Feb 21 00:00:12 2008] [error] child process 63983 still did not exit, sending a SIGKILL [Thu Feb 21 00:00:12 2008] [error] child process 64048 still did not exit, sending a SIGKILL Which is correct, as the process is not exiting. For some reason it's hanging. The old binary did not do this. I could try another system update today (make/build/install world and recompile the apache executable and dependencies) to see if this solves the problem... Thanks, Forrest
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