Design a server topology to support a web services configuration
in which WS-Notification customers receive a range of web service qualities
of service (QoS), such as reliability.
About this task
Designing a QoS-partitioned server topology for WS-Notification describes
how you can design a partitioned topology in which different servers or server
groups provide different qualities of service for WS-Notification customers
of varying status. This task describes the additional design steps where you
plan to use policy sets to apply a range of web service qualities of service
to JAX-WS based web service applications including Version 7.0 WS-Notification
service and service point applications.
Procedure
- Get a statement of the qualities of service requirements for each
web service in the topology, for example a statement describing whether each
WS-Notification service point should support composition with WS-ReliableMessaging.
- Identify, from the statements you collected in the previous step,
the distinct groups of QoS requirements.
- Ensure that each web service in the topology is a JAX-WS based
web service, and can therefore be configured by using policy sets. For WS-Notification
services, impose a constraint that each service is a Version 7.0 WS-Notification
service.
- Define the policy sets needed to achieve the required qualities
of service.
- Identify existing policy sets that meet the requirements defined
in the previous step. You might be able to use existing policy
sets within your organization, or default policy sets provided by WebSphere® Application Server.
For more information about how to verify whether you can reuse an existing
policy set, and (if necessary) create a new one, see Managing policy sets using the administrative console.