Clustering is an advanced feature of Integration Server that substantially extends the reliability, availability, and scalability of Integration Server.

Clustering accomplishes this by providing the infrastructure and tools to deploy multiple Integration Servers as if they were a single virtual server and to deliver applications that leverage that architecture. Because this activity is transparent to the client, clustering makes multiple servers look and behave as one.

Integration Server supports the caching and clustering functionality provided by Terracotta. Caching and clustering are configured at the Integration Server level and Oracle Apps Adapter uses the caching mechanism that is enabled on Integration Server. Oracle Apps Adapter does not explicitly implement any clustering or caching beyond what is already provided by Integration Server.

When Integration Server uses Terracotta as its caching provider, you must configure Oracle Apps Adapter to use webMethods Integration Server Scheduler to support polling notifications. For information about executing polling notifications using the Integration Server Scheduler, see Configuring Polling Notifications When Integration Server Uses Terracotta .

With clustering, you get the following benefits:

For details on Integration Server clustering, see the webMethods Integration Server Clustering Guide for your release.