SOA Suite 12.2.1: Failure resiliency by Marcel van de Glind
May 13, 2016 Leave a comment
Adjust the situation that from a business process various service endpoints are invoked, where one of them is shown unstable behavior. The unstable service is regularly for short and sometimes long time not available. This may result in a large number of instances end in the error hospital. At the time that the endpoint is not available, resources are used to process instances which will not end successfully. Failure resiliency solution helps to avoid this situation. The failure resiliency solution is to suspend upstream inbound adapters, or EDN subscriptions, or web services. In the case of web services, clients are given errors right away. In the case of EDN and Adapters, messages wait in directory/queue/topic etc. until the endpoint is resumed.
IWS can also help in this situation (see also my IWS blog). Use IWS to examine what happened at various points in the business process to analyze the behavior.
By default, failure resiliency is switched off. Zo to start using it, the first step is to enable failure resiliency. You can enable it globally (as shown below). Each downstream endpoint inherits this configuration, but you can override it for an endpoint. Read the complete article here.
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