Universal Messaging 10.11 | Administration Guide | Universal Messaging Enterprise Manager | Channel Administration | Creating Channels
 
Creating Channels
 
Valid Channel and Queue Names
Channels are the logical meeting points for data that is published and subscribed to. If you are using Universal Messaging Provider for JMS, channels are the equivalent of JMS topics.
Each channel consists of a physical channel on the Universal Messaging realm as well as its logical reference in a namespace that may comprise resources that exist across multiple Universal Messaging realm servers. When you create a channel in the Enterprise Manager, a physical object is created on the realm. You can also obtain references to the channel by using the Universal Messaging Client and Admin APIs. You can create a channel in the following ways:
*Create the new channel directly under the realm node.
*Create a container node (folder) that contains the new channel.
*Add the new channel to an already existing container node.
If the realm on which you want to create the channel is part of a cluster, the channel is created as a cluster-wide asset. You cannot create local stores on a clustered realm.
When you connect to a Universal Messaging realm in the Enterprise Manager, all resources and services found in the realm namespace are displayed in a tree structure under the realm node.
*To create a channel in the Enterprise Manager
1. Expand the Realms node.
2. Select a realm, right-click it, and then select Create Channel.
3. In the Add channel dialog box, specify a name for the channel.
If you want to create a new container node, you must specify the absolute name of the channel. For example, to create a channel named "rates" in a new container named "eur", type eur/rates. For more information about the valid channel names, see Valid Channel and Queue Names.
4. Specify the other channel attributes to configure the behavior of the channel.
For more information about the channel attributes and values to specify, see Channel Attributes.
5. (Optional) To configure the operational environment of the channel, edit the storage properties associated with the channel.
For more information about the storage properties, see Storage Properties of Channels and Queues.
6. (Optional) If you want to publish Protobuf events on the channel, upload a Protobuf descriptor.
For general information about Google protocol buffers, see Google Protocol Buffers.
7. (Optional) To create a channel key, under Channel Keys, click New and specify the key name and depth.
Channel keys enable a channel to automatically purge old events when new events of the same type are received. For more information about working with channel keys, see Channel Publish Keys.
8. Click OK.