Question about overcommit of cpu and ram
I have a question about nova now, as we all know that the physical cpu and ram can be assigned to vCPU and vRam exceed its actual capacity, my question is that whether the compute node will crashed or not when all the vms in the node are runing in a full load way assumed that the physical node resources have been completed assigned to the vms ? If there exist any mechanism to avoid this happen ? Thank you in advanced!