#### Cluster tab

The Cluster tab is available only when JReport Enterprise Server is installed with a license for cluster. It allows you to configure the settings of three roles in a cluster - admin server, backup server and slave server. See the tab.

The following are options available in this tab:

Admin Server

Specifies to indicate that this server will run as the admin server in the cluster.

Backup Server

Specifies to indicate that this server will run as the backup server in the cluster.

Slave Server

Specifies to indicate that this server will run as the slave server in the cluster.

Shared Properties Directory

Specifies a directory for storing system data. The Shared Properties Directory of all admin/backup servers must point to the same location. This option is available for Admin server and Backup server only.

Shared Realm Directory

Specifies a directory for storing system data. The Shared Realm Directory of all admin/backup servers must point to the same location. This option is available for Admin server and Backup server only.

Shared Resource Root

Specifies a directory for storing system data. The Shared Resource Root of all admin/backup servers must point to the same location.

History Directory

Specifies a directory for storing report set/catalog/result files. For a non-admin server, a shared history directory can improve performance, because a non-admin server can read/write files from/in history directory directly instead of reading/writing files via the admin server.

Temporary Files Directory

Specifies a directory for storing temporary result files. Along with the running of JReport Enterprise Server, temporary result files (generated by background run) will be written to the temp directory. With a shared temp directory, performance is improved since there is no need to copy the temporary result files from one server to another.

Admin Server's RMI Host

Specifies the RMI IP address or host name of the admin server.

Admin Server's RMI Port

Specifies the RMI port number of the admin server.

Server's RMI Host

Specifies the RMI IP address or host name of the local server.

Server's RMI Port

Specifies the RMI port number of the local server.

Save

Applies any changes to JReport Enterprise Server.