High Availability
OpenStack Live Migration Failed: How to Diagnose and Fix Common Causes
OpenStack Live Migration and Nova Host Evacuation: What They Are and When to Use Them Production infrastructure cannot afford unplanned downtime, but with OpenStack, it doesn't have to. OpenStack's live migration feature moves running virtual machine instances from one compute node to another within the same cluster. This keeps services available while the underlying hardware or software is maintained. The Nova compute service orchestrates this process and extends it further through host evacuation, which is a mechanism designed to recover workloads from compute nodes that have become unreachable or failed entirely.