Issue with Apache Workers and Cloudflare

I am running an Apache Server with this config: 64GB RAM, 4x480GB SSD, Dual 12 cores @ 2.1 GHz Apache settings keepalivetimeout: 5 loglevel: warn maxclients: 2000 serverlimit: 2000 maxkeepaliverequests: 100 maxrequestsperchild: 10000 maxspareservers: 20 minspareservers: 5 startservers: 5 The server keeps crashing intermittently, yet server load will be low (less than 3). I found…