About clusters
The system administrator creates, configures, and manages clusters. Creating a cluster supports a system administrator in rapidly configuring and monitoring Actuate applications deployed for use by an entity such as a corporation or corporate division. A cluster consists of one or more computers, or cluster nodes, on which a BIRT iHub instance runs. The system administrator adds a node to a cluster to improve availability and throughput and scale the installation to meet processing requirements.
A node configures itself using a template in acserverconfig.xml, which is located in a shared configuration directory along with the license file, acserverlicense.xml. All cluster nodes access the shared configuration directory. When a node joins a cluster, the node configures itself using its designated template. In addition to templates, the acserverconfig.xml file also contains other configuration parameters specifying the host names, volume names, port numbers, printers, and services used by nodes in the cluster.
In System Console, choose Clusters to perform the following tasks, as shown in Figure 7‑1:
*Create a cluster.
*Edit an existing cluster.
*View and filter the list of clusters.
*Delete clusters.
*Select only starred clusters.
*Star or unstar clusters.
*Add a volume.
*View log files.
*View resource usage information.
Figure 7‑1 Viewing Clusters
The following sections describe how to perform these tasks.