nova/releasenotes/notes/prevent-starting-services-with-old-compute-fc80b4ff58a2aaea.yaml
Balazs Gibizer aa7c6f8769 Prevent starting services with older than N-1 computes
Nova services only support computes that are not older than
the previous major release. This patch introduces a check in the
service startup that prevents staring the service if too old computes
are detected.

Change-Id: Ie15ec8299ae52ae8f5334d591ed3944e9585cf71
2020-11-04 14:05:52 +01:00

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YAML

---
upgrade:
- |
Nova services only support old computes if the compute is not
older than the previous major nova release. To prevent compatibility
issues at run time nova services will refuse to start if the deployment
contains too old compute services.