I've been recently receiving this weird error where Apache just becomes unresponsive and completely stops until it is manually restarted.
It gets to a point where I can not longer retrieve apache status, and all websites running apache just hang on "connecting" until it times out.
C. Apps:
1. MySQL: mysql55-5.5.39-1.ius.el6.x86_64
2. PHP: php53u-5.3.29-1.ius.el6.x86_64
3. Httpd: httpd-2.2.27-1.mr.e6.x86_64
4. Lighttpd: --uninstalled--
5. Hiawatha: hiawatha-9.7.b-1.mr.el6.x86_64
6. Nginx: --uninstalled--
7. Cache: --uninstalled--
8. Dns: bind-9.8.2-0.23.rc1.el6_5.1.x86_64
9. Qmail: qmail-toaster-1.03-1.3.38.mr.el6.x86_64
- with: courier-imap-toaster-4.1.2-1.3.16.mr.el6.x86_64
D. Php-type (for Httpd/proxy): php-fpm_event
