10.7 Issuing JP1 events in a cluster environment

JP1 events are always issued from JP1/Service Support via JP1/Base. Therefore, when you run JP1/Service Support on a logical host of a cluster system, JP1/Base must also be running on the same logical host. If you run JP1/Service Support and JP1/Base on different hosts, when a failover occurs only on the logical host on which JP1/Base is running, JP1/Service Support will not be able to issue JP1 events.

The following figure shows the flow of issuing JP1 events on the primary node of a cluster.

Figure 10‒4: Issuing JP1 events for cluster use (flow on the primary node)

The above figure assumes that the primary node on a physical host (host01) is active. In this case, if an Item is registered in the logical host (hostA), JP1 events are issued via the JP1/Base running on the primary node.

The following figure shows the flow of issuing JP1 events on the secondary node of a cluster.

Figure 10‒5: Issuing JP1 events for cluster use (flow on the secondary node)

The above figure assumes that the secondary node on a physical host (host02) is active. In this case, if an Item is registered in the logical host (hostA), JP1 events are issued via the JP1/Base running on the secondary node.

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