Oracle^® Business Intelligence Enterprise Edition Deployment Guide > Clustering, Load Balancing, and Failover in Oracle Business Intelligence >

Oracle BI Cluster Server Components

This section describes the components that comprise the BI Cluster Server feature.

• Oracle Business Intelligence Cluster Controller
• Clustered BI Servers
• Master BI Server
• BI Scheduler
• Cluster Manager

Oracle Business Intelligence Cluster Controller

The BI Cluster Controller is a process that serves as the first point of contact for new requests from BI Presentation Services and other clients. The Cluster Controller determines which BI Server in the cluster to direct the request to based on BI Server availability and load. It monitors the operation of servers in the cluster, including the BI Scheduler instances. The Cluster Controller is deployed in active-passive configuration:

• Primary Cluster Controller

  This controller is the active cluster controller.

• Secondary Cluster Controller

  This controller is the secondary cluster controller. It assumes the role of the primary cluster controller if the primary controller is unavailable.

Clustered BI Servers

The BI Cluster Server feature supports up to 16 BI Servers in a network domain to act as a single server. BI Servers in the cluster share requests from multiple Oracle BI clients.

Master BI Server

A clustered Oracle Business Intelligence Server is designated as the Master BI Server. The Oracle Business Intelligence Administration Tool connects to the master BI Server for online repository changes.

BI Scheduler

BI Scheduler instances participate in the Cluster Server feature in active-passive mode. The active BI Scheduler instance processes jobs and executes iBot requests. The inactive BI Schedulers remain idle and do not process jobs until called on to take over in the event of an active Scheduler failure

Cluster Manager

The Cluster Manager is available in the Administration Tool when a repository is open in online mode. The Cluster Manager enables or quiesces Oracle BI Server clustered instances, and activates Oracle BI Scheduler clustered instances.

For more information on the Cluster Manager, refer to the Oracle Business Intelligence Server Administration Guide.

NOTE:  All components of the BI Cluster Server feature must reside on the same Local Area Network (LAN). Multi-NIC is not supported for clustered deployments.