Bug ID 1114861: Local controller etcd instance may become unreachable after a rolling upgrade.

Last Modified: Aug 21, 2022

Bug Tracker

Affected Product:  See more info
F5OS Install/Upgrade, Velos(all modules)

Fixed In:
1.5.0

Opened: Jun 14, 2022
Severity: 2-Critical

Symptoms

The local etcd instance on a system controller may be unreachable after a rolling upgrade. This can be seen via the output of /etc/etcd/dump_etcd.sh script on the controller.

Impact

The local etcd instance will become unreachable. If the local instance on the active controller is unreachable, and the standby controller fails, etcd and the openshift cluster will go offline.

Conditions

This can happen during a rolling upgrade.

Workaround

None

Fix Information

The unreachable etcd instance will be restored once the rolling update is completed.

Behavior Change