Instance in Stopped State Post-Creation

Problem

• Instance creation is successful but it then immediately shuts down.
• After attempting to start the instance, it immediately goes to a stopped state.
• No relevant error messages in /var/log/pf9/ostackhost.log .

Environment

• Platform9 Managed OpenStack - All Versions

Cause

• RAM allocated to the flavor is equivalent to or more than that of the overall memory limit the hypervisor.
• Swap space on the hypervisor isn't enabled.

Resolution

1. Re-create the instance with a separate flavor which has lower memory requirements.
2. Configure and enable swap space.
3. If enabling swap doesn't help, then add additional RAM on the hypervisor.