This topic helps you plan the topology of high availability
for your WebSphere® Sensor Events.
Requirements
- Setting
up a high availability system requires a WebSphere Sensor Events Enterprise Edition license.
- All servers in the high availability system must run
the same operating system.
- All cluster members must have the prerequisite software
installed in the same path as the central server.
See Prerequisite steps for a high availability system for more information
on prerequisites.
Topology
A
WebSphere Sensor Events high
availability topology consists of the following:
- WebSphere Sensor Events deployed
in a WebSphere clustered
configuration
- A centralized database
- A centralized WebSphere MQ server
- WebSphere Application Server Network Deployment components,
which are installed on a machine called the cluster controller.
Note: WebSphere Application Server Network Deployment does
not support local operating system security. If you need to enable
security in your environment, use LDAP or the custom user registry.
The following points apply to the sample
configuration diagram pictured below:
- Only two nodes are pictured in this sample, but there can be n number
of nodes in your configuration.
- The two servers with WebSphere Application Server that
are not part of the cluster contain some WebSphere Sensor Events components
as well, such as the messaging gateway. The WebSphere Application Server pictured
in the background is in passive standby, while the one in the foreground
is active.