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As a CA Service Catalog administrator, you can optionally use clustering for CA Service Catalog to improve performance and provide failover protection. Here, the term clustering means multiple computers in a group that perform the same or similar function, essentially acting as one virtual computer. Specifically, clustering here refers to CA Service Catalog running on two or more computers. Failover protection means that if one computer malfunctions, becomes heavily loaded, or loses power, its workload is transferred to the other computers in the cluster. These computers retain and complete the active sessions.
Another advantage of clustering is load-balancing: If one of the cluster components is busy processing a request, the load is redirected to another component in the cluster. Users of the system see no interruption of access. CA Service Catalog processing continues. The loss of performance on users and business functions is minimized, even when computer availability is lost or reduced.
The CA Service Catalog installation program includes Apache Tomcat, the default web application server for CA Service Catalog, which you can optionally install and use. Moreover, you can optionally implement clustering for CA Service Catalog using this version of Apache Tomcat.
You can optionally install and cluster multiple instances of CA EEM and CA Process Automation.
Note: For details about implementing clustering for CA Service Catalog, see the Implementation Guide. For details about implementing clustering for CA EEM and CA Process Automation, see the CA EEM and CA Process Automation documentation, respectively.
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