Hi, We've recently had a pretty large increase in the usage of one of our Wordpress-powered sites. I'm seeing some very odd behaviour and I'm at a loss as to how to investigate it further. Some of the apache processes are spawning children with broken CPU usage and time stats (as shown by ps auxf). I think it might be best just to show some examples; root 3153 0.0 0.4 304688 12960 ? Ss 15:26 0:00 /usr/sbin/apache2 -D SSL -D PHP5 -D STATUS -d /usr/lib64/apache2 -f /etc/apache2/httpd.conf -k start apache 3155 0.0 0.1 215864 3816 ? S 15:26 0:00 \_ /usr/sbin/apache2 -D SSL -D PHP5 -D STATUS -d /usr/lib64/apache2 -f /etc/apache2/httpd.conf -k start apache 12135 129895172 4.0 542620 127208 ? Sl 16:33 21114987:41 \_ /usr/sbin/apache2 -D SSL -D PHP5 -D STATUS -d /usr/lib64/apache2 -f /etc/apache2/httpd.conf -k start apache 12353 10.6 4.0 729908 127676 ? Sl 16:34 1:20 \_ /usr/sbin/apache2 -D SSL -D PHP5 -D STATUS -d /usr/lib64/apache2 -f /etc/apache2/httpd.conf -k start apache 12875 11.1 3.8 773840 121116 ? Sl 16:36 1:09 \_ /usr/sbin/apache2 -D SSL -D PHP5 -D STATUS -d /usr/lib64/apache2 -f /etc/apache2/httpd.conf -k start apache 13222 9.1 4.1 845240 130568 ? Sl 16:38 0:49 \_ /usr/sbin/apache2 -D SSL -D PHP5 -D STATUS -d /usr/lib64/apache2 -f /etc/apache2/httpd.conf -k start apache 13445 10.5 3.6 725956 114972 ? Sl 16:39 0:50 \_ /usr/sbin/apache2 -D SSL -D PHP5 -D STATUS -d /usr/lib64/apache2 -f /etc/apache2/httpd.conf -k start apache 13582 9.4 3.5 792056 112884 ? Sl 16:39 0:42 \_ /usr/sbin/apache2 -D SSL -D PHP5 -D STATUS -d /usr/lib64/apache2 -f /etc/apache2/httpd.conf -k start apache 14148 9.2 3.4 724848 107920 ? Sl 16:42 0:27 \_ /usr/sbin/apache2 -D SSL -D PHP5 -D STATUS -d /usr/lib64/apache2 -f /etc/apache2/httpd.conf -k start apache 14253 290358163 3.4 709912 108308 ? Sl 16:42 21133796:09 \_ /usr/sbin/apache2 -D SSL -D PHP5 -D STATUS -d /usr/lib64/apache2 -f /etc/apache2/httpd.conf -k start apache 14287 431815 3.5 717512 110180 ? Sl 16:42 19215:48 \_ /usr/sbin/apache2 -D SSL -D PHP5 -D STATUS -d /usr/lib64/apache2 -f /etc/apache2/httpd.conf -k start apache 14356 9.5 3.5 722780 111908 ? Sl 16:43 0:24 \_ /usr/sbin/apache2 -D SSL -D PHP5 -D STATUS -d /usr/lib64/apache2 -f /etc/apache2/httpd.conf -k start apache 14392 324909060 3.9 735640 123796 ? Sl 16:43 21133795:59 \_ /usr/sbin/apache2 -D SSL -D PHP5 -D STATUS -d /usr/lib64/apache2 -f /etc/apache2/httpd.conf -k start apache 14418 9.6 4.0 781036 128604 ? Sl 16:43 0:21 \_ /usr/sbin/apache2 -D SSL -D PHP5 -D STATUS -d /usr/lib64/apache2 -f /etc/apache2/httpd.conf -k start apache 14952 11.8 2.8 709736 91072 ? Sl 16:46 0:07 \_ /usr/sbin/apache2 -D SSL -D PHP5 -D STATUS -d /usr/lib64/apache2 -f /etc/apache2/httpd.conf -k start apache 15294 8.4 2.5 761932 80584 ? Sl 16:46 0:02 \_ /usr/sbin/apache2 -D SSL -D PHP5 -D STATUS -d /usr/lib64/apache2 -f /etc/apache2/httpd.conf -k start apache 15329 90923337 2.3 695200 73448 ? Sl 16:46 21153009:43 \_ /usr/sbin/apache2 -D SSL -D PHP5 -D STATUS -d /usr/lib64/apache2 -f /etc/apache2/httpd.conf -k start apache 15364 7.8 2.3 683200 74408 ? Sl 16:46 0:01 \_ /usr/sbin/apache2 -D SSL -D PHP5 -D STATUS -d /usr/lib64/apache2 -f /etc/apache2/httpd.conf -k start apache 15371 9.3 2.3 694896 74564 ? Sl 16:46 0:02 \_ /usr/sbin/apache2 -D SSL -D PHP5 -D STATUS -d /usr/lib64/apache2 -f /etc/apache2/httpd.conf -k start apache 15423 15.8 2.3 755896 74888 ? Sl 16:47 0:02 \_ /usr/sbin/apache2 -D SSL -D PHP5 -D STATUS -d /usr/lib64/apache2 -f /etc/apache2/httpd.conf -k start The apache server-status page shows these up as processing requests correctly (state K, C or R) but with improbably high values in the CPU column. If anyone has any ideas where I can start looking (or can just tell me how to fix it!) it would be greatly appreciated. Cheers -- Dave Barton Senior Systems Administrator Comodo CA Ltd
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