This documentation supports the 22.1 version of Action Request System.
To view an earlier version, select the version from the Product version menu.

Configuring a hardware load balancer with AR System

A hardware load balancer can improve the scalability and availability of  AR System . A load balancer acts like a NAT device that routes any TCP or UDP traffic. Since the  AR System server  uses an ONC-RPC implementation that is layered on top of TCP/IP,  AR System server  traffic can be load balanced. Because of the nature of the client/server interaction within  AR System , setting the sticky bit is not required. While the sticky bit allows for the spreading of the workload from multiple clients, it does reduce the balancing that can occur.

Best practice

If an escalation or archive operation results in a fail-over from one server to another, escalations or archives running at a fixed time might be skipped or might run twice. An escalation or archive activity might be skipped if it is scheduled to run while the operation is making the transition from one server to another. An escalation or archive activity might be skipped or run twice if the system clocks on the relevant systems are skewed—that is, if the clock settings differ enough to cause a fixed time to be missed or encountered twice.
See the following topics for more information about configuring a load balancer:

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