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I'm running a Kubernetes cluster on GKE with autoscaling enabled. My workloads are running fine, but I have an issue with my PostgreSQL database, which is deployed as a StatefulSet with a single replica.

The Problem:

Whenever GKE adds a new node, my PostgreSQL pod restarts due to rescheduling. Since it has a high data volume, the restart process takes a long time, affecting application performance.

Using PodDisruptionBudgets (PDB), but since I have only one replica, it doesn't fully prevent eviction.

Setting node affinity, but this limits autoscaling flexibility.

Checking for persistent volume stability, but my storage remains intact.

How can I prevent my PostgreSQL pod from restarting when GKE autoscaling adds nodes?

Are there any Kubernetes-native mechanisms to handle this better?

What are the best practices for managing stateful workloads with autoscaling?

Would appreciate any insights from the community!

本文标签： kubernetesHow to Prevent PostgreSQL Pod Restart on GKE Node AutoscalingStack Overflow

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