Create multiple WS-Notification services and instantiate WS-Notification
service points on different servers in the cell depending upon the quality
of service that is required.
Before you begin
This task assumes that you, or your
solution architect, have already
designed a QoS-partitioned server topology for WS-Notification and
that you therefore have a well-defined set of criteria for the different types
of QoS that must be fulfilled by the server topology, and a configuration
design such that service integration bus topic spaces used by the different
brokers do not overlap in cases where applications with one QoS should be
isolated from others.
About this task
WS-Notification enables partitioned topologies in which some servers
provide a different quality of service that can be utilized by customers of
varying status. For example you might configure a cluster of servers for use
by a particular customer in order to provide enhanced HA facility or improved
response times.
To configure a QoS-partitioned server topology for WS-Notification,
complete the following steps :
Procedure
- Create a server cell containing multiple servers that have the
capability to support the QoS requirements.
- Configure one or more service integration buses in the cell.
- Learn about the options that exist for partitioning access to messaging
resources and defining non-overlapping WS-Notification services.
- You can define multiple WS-Notification services on a single service integration
bus. By ensuring that topic namespaces defined by the two (or more) Services
do not make use of the same service integration bus topic spaces you can ensure
that there is no possibility for communication between the clients of respective
WS-Notification services.
- You can also define multiple service integration buses and configure a
single WS-Notification service on each. The choice of which of these two options
to utilize depends upon the existing messaging infrastructure, and the enterprise’s
policy towards creation of multiple service integration buses.
- Allocate service integration bus Bus Members and WS-Notification
service points to appropriate servers in the cell in order to provide the
required speed of response to requests. For example a faster response time
will require the elements to be deployed on faster (or less heavily loaded)
hardware.
- Configure appropriate advanced settings on the Inbound Ports associated
with the WS-Notification service point to handle other QoS requirements such
as security and reliability.
- Save the configuration for changes to take effect.