Databases Reference
In-Depth Information
See also
F
Configuring HA WebLogic cluster parameters
F
Using Multicast for cluster communications
Using Multicast for cluster communications
WebLogic can also use Multicast for cluster communications.
When configured for using Multicast, the Managed Servers of the cluster subscribe to a
Multicast address and port and listen for heartbeats and cluster messages. Unlike Unicast,
Multicast communication uses UDP and broadcasts the message through the network and
therefore does not guarantee that the message is received.
Getting ready
To configure Multicast, the Administration Server must be running.
How to do it...
To configure the Multicast communication for the cluster:
1. Access the Administration Console with your web browser at
http://prod01.
domain.local:7001/console
.
2. Click on the Lock & Edit button to start a new edit session.
3. Expand the Environment tree on the left and click on Clusters.
4. Click on the
PROD_Cluster
cluster to navigate to Configuration | General and click
on the Messaging tab to navigate to Configuration | Messaging.
5. Change the Messaging Mode drop-down menu to Multicast. Configure the Multicast
Address value to
239.192.0.0
and the Multicast Port to
7001
(as shown in the
following screenshot):
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