SOA Suite 12.2.1: Failure resiliency by Marcel van de Glind


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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About Jürgen Kress
As a middleware expert Jürgen works at Oracle EMEA Alliances and Channels, responsible for Oracle’s EMEA Fusion Middleware partner business. He is the founder of the Oracle SOA & BPM and the WebLogic Partner Communities and the global Oracle Partner Advisory Councils. With more than 5000 members from all over the world the Middleware Partner Community is the most successful and active community at Oracle. Jürgen manages the community with monthly newsletters, webcasts and conferences. He hosts his annual Fusion Middleware Partner Community Forums and the Fusion Middleware Summer Camps, where more than 200 partners get product updates, roadmap insights and hands-on trainings. Supplemented by many web 2.0 tools like twitter, discussion forums, online communities, blogs and wikis. For the SOA & Cloud Symposium by Thomas Erl, Jürgen is a member of the steering board. He is also a frequent speaker at conferences like the SOA & BPM Integration Days, JAX, UKOUG, OUGN, or OOP.

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