Administration Console

9.2.6
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Cluster

Process Server supports clusters of Process Servers operating with a single persistent process store. Multiple process servers share a set of process instances and their deployments.

Two main features of a clustered environment are load balancing and fail over. Load balancing allows processes to be routed to the server in the process cluster with the least load. Fail over allows servers to pick up the load of a failed server in the process cluster.

The following figure shows the Cluster page and the Detail page that is displayed if you click on a link in the Cluster page.

Clicking either of an engine's links displays the Engine Detail page, which has the following information:

Field	Explanation
ID	ID assigned to the cluster node by the Process Server engine
Name	Computer IP address and port where the engine instance is running
Start Time	Date and time the engine started
Status	Statuses include Running and Stopped
No. CPUs	Number that is based on licenses. Select the number of CPUs to view the Engine Detail page, where you can update the number. Then view the Admin License page to verify that the number of licenses matches the number of CPUs. Process Server reports an estimated number of CPUs based on the information it gathers from the computer. The number may not be accurate if the computer is using CPU hyper-threading technology.