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⁠Chapter 3. The Cluster Layer

Table of Contents

3.1. Pacemaker and the Cluster Layer
3.2. Managing Nodes in a Corosync-Based Cluster
3.2.1. Adding a New Corosync Node
3.2.2. Removing a Corosync Node
3.2.3. Replacing a Corosync Node

⁠3.1. Pacemaker and the Cluster Layer

Pacemaker utilizes an underlying cluster layer for two purposes:
  • obtaining quorum
  • messaging between nodes
Currently, only Corosync 2 and later is supported for this layer.