Here is what my hosting support said
Originally Posted by NiteWave
great! thanks for update. particularly which binaries ?
Update : after i watched the server, it seems APC is still restarted every 10-25 mins. But no 503 error e-mail on my inbox anymore. And because i've increased my RAM, the effect is not as significant as when my RAM is still small. Will check the litespeed log later.
I believe I may have resolved your issues. I was seeing the following when looking into your PHP configuration:
myusername@mybox [/home]# /usr/local/cpanel/bin/rebuild_phpconf --available
Available handlers: suphp dso fcgi cgi none
PHP4 SAPI: cgi
PHP5 SAPI: not installed
RUID2: not available
The rebuild I did earlier should have fixed this, but did not for some reason. I've re-run easyapache to rebuild Apache's PHP binaries, and then rebuilt Litespeed's to match, and everything has settled down. I've since stopped seeing PHP segfaults in messages also, so I believe the issue to be resolved. I'm also seeing the load way down near 1-8 as opposed to 15-23 that it was earlier. Looks like the main issue was the Apache PHP binaries were broken, along with a misconfigured PHP configuration and php.ini. I'm going to run a forced update and re-install of cPanel and it's core perl module in hopes that it fixes whatever had broken the configuration.
I use litespeed
Last edited by semprot; 10-08-2013 at 12:10 AM..