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TIBCO® Control Plane 1.2.0

# Kubernetes Maintenance Support

Your Pulsar server group is configured as a group of StatefulSets, both quorum-based and Active-Active. It has some implications on performing Kubernetes maintenance activities, such as workload rebalancing, node-image upgrades, or security patching.

The basic strategy for minimizing downtime when restarting StatefulSets is:

- Add new replacement nodes

- Cordon current nodes to avoid node-stickiness issues

- Process each StatefulSet in the order that Apache Pulsar recommends: deleting each pod and waiting for it to restart and fully rejoin the group

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