What do it mean ? failure count 8 some thing to worry about ?
This means that you get a resource shortage inside the container (see http://openvz.org/UBC).
Check the UBC panel on the GUI to see what resource is affected.
assign more ram to your CT
You mean if the counter 8 stay like this all is ok ? Should it not go to normal again ? Or its just the way it is.if the failcount number does not increase, you do not hit the limit again.
You mean reboot Proxmox ? Reboot the Openvz don't solve the error.a host reboot should clear the value. but its not needed to be zero.