There are several possibilities for web or mail server load balancing: Relayd – https://calomel.org/relayd.html Nginx – https://calomel.org/nginx.html The Linux Virtual Server – http://www.linuxvirtualserver.org/ Heartbeat –
OpenVZ Error: No buffer space available
Description In your logs you get an “No buffer space available” error. Analysis Look at your bean counters: # cat /proc/user_beancounters Version: 2.5 uid resource held maxheld barrier limit failcnt 101: kmemsize 9146159 27892508 110559230 113770490 0