When Integration Servers are deployed in a cluster, the servers in that cluster automatically share information about the registered polling notifications. The adapter run time will automatically coordinate polling and some callbacks among instances of the same polling notification node on different servers in a cluster.

This coordination of clustered polling notifications requires no special coding by the adapter. However, there are design considerations for adapters that will be used in a cluster. There are also global, adapter-specific, and node-specific configuration options that control how coordination is performed. At a minimum, adapter writers should specify configuration values that are appropriate for the adapter.