6.3-STABLE Apache 2.0 uses high CPU when restarted....

Derek Ragona derek at computinginnovations.com
Thu Feb 21 15:41:17 UTC 2008

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" :
>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).

What is showing in the apache logs when this happens?


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