leader node

A single node in a cluster of Oracle Endeca Server nodes responsible for processing queries and for receiving updates to the index and to the configuration. This node is responsible for obtaining information about the latest index and propagating this information to the follower nodes through the Cluster Coordinator.

Each cluster must have one and only one leader node. All nodes must have write access to a shared file system on which the Oracle Endeca Server index is stored. The modules outside the cluster of Oracle Endeca Server nodes (such as connectors in Integrator and components in Studio) must have access to the leader node.

See also follower node and cluster.