State Server

To improve fault tolerance, each configuration can have a BI servers cluster implemented. If two or more BI servers are used, it is recommended to add a state server to configuration, which will restore object parameters in case of failure of the requested BI server.

The platform can use Redis and Memcached as state servers. In order a Memcached-based state server works, install OpenSSL libraries.

NOTE. A state server is not included in software package of Foresight Analytics Platform.

Working with BI server, after executing requests to change objects, their states (moniker and parameters required to restore the object) are saved at the state server and loaded from the server on further addressing the objects. Saving states is supported by the following objects:

Repository connection settings (repository description and credentials used for connection).
Express reports.
Dashboards.
Regular reports.
Workbooks.
The types of objects specified above, created in BI server memory but not yet saved in the repository.