[users@httpd] 503 Message while configure Apache for VIP address

Hi, We we have two Apache WebServers and Two Tomcat Servers F5 LB Connect Both WebServerA & WebServerB WebServerA Connect TomcatA WebServerB Connect TomcatB If Tomcat A failed and WebServerA is available then we are getting 503 Error Message. To avoid the Failover, we created LB(VIP) and Point to

[users@httpd] Using memcached w/ socache

Before I start digging into the code to try to figure this out, has anyone use the memcache socache module to use memcached as the backend storage for mod_cache? I'm trying to figure out exactly *how* to configure this... I'm guessing it's something like CacheEnable socache CacheSocache