Application Integration (On-Premises) : Clustering : An Overview of Clustering : Overview of Reliability
Overview of Reliability
 
Guaranteed Delivery and Clustering
Checkpoint Restart
Putting It All Together
Several features of the webMethods Integration Server improve reliability in a clustered or unclustered environment.
*Guaranteed delivery. This feature ensures that a service executes once and only once. It is particularly useful when used with clustering to prevent a restarted service from running on more than one server. This feature is only for use with server-to-server communications.
*Checkpoint restart services. The pub.storage and pub.cache services allow you to code your flow service to store state information and other pertinent information in the short-term data store. If the flow service fails because a server becomes unavailable, the flow service can be restarted from the last checkpoint rather than at the beginning. For more information about pub.storage and pub.cache services, see the webMethods Integration Server Built-In Services Reference.
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