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Replicating Presentation Catalogs

Oracle Business Intelligence can copy and merge contents of selected Presentation Catalog folders between instances of Oracle BI Presentation Services. The replication configuration can be split into individual tasks. The replication task is an instruction to periodically merge catalog contents for specified catalog folders from one server to another. Two-way replications are possible.

A typical scenario where replication is useful is when you use one instance of Oracle BI Presentation Services to prepare and publish shared reports, and use two or more production instances to support the users. In this scenario you share the catalog from Instance 1 to two production instances and then share the catalogs on each production instance with the other. To accomplish this, you set up the following replication tasks in the Oracle BI Presentation Services Replication Agent's (sawrepaj) configuration file:

• /shared: Instance1 to Instance2
• /shared: Instance1 to Instance3
• /users: Instance2 to Instance3
• /users: Instance3 to Instance2

When an instance of Oracle BI Presentation Services participates in replication, either as a publisher or subscriber, it tracks changes made to catalog items that are marked to be replicated and keeps them internally in replication log files. Another instance of Oracle BI Presentation Services can make a SOAP call to request to export those changes to a file or to import and replay modifications recorded in a file exported earlier from another instance. The Oracle BI Presentation Services Replication Agent uses SOAP to manage replication related activities on all instances of Oracle BI Presentation Services and performs import and export operations. For information on the SOAP calls used, read Oracle Business Intelligence Web Services Guide.