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Adding a Node to a Replicating Cluster

There are several tools and scripts you can use to add a node to a cluster; the way that you choose should depend on the use and state of your cluster:

  • Use Z0DAN to Add or Remove a Node with Zero Downtime

Z0DAN is a spock utility that provides scripts that you can use to seamlessly add or remove a node from your cluster with zero downtime.

  • Use pgBackRest to Add a Node to a Replicating Cluster with Minimal Downtime

pgBackRest is an open-source tool that you can use to add a node to a replicating cluster with minimal interruption.