Monitoring Topics and Queues

You can use Enterprise Manager to monitor message traffic in topics and queues.

To Monitor Topics and Queues

1. In the Explorer panel of Enterprise Manager, select the Sun Java System Message Queue node (for example, Sun_JMQ_7676).

   The following table describes the columns that appear for a topic.

   Column Name	Description
   Topic Name	The name of the topic.
   Min Sequence Number	This column is not applicable to Sun Java System Message Queue.
   Max Sequence Number	This column is not applicable to Sun Java System Message Queue.
   Available Count	The number of messages for this topic that are still unprocessed by at least one subscriber.
   Number of Subscribers	The number of subscribers registered to consume messages for this topic (including durable subscribers that are currently disconnected).
   Last Published Date/Time	This column is not applicable to Sun Java System Message Queue.

   The following table describes the columns that appear for a queue.

   Column Name	Description
   Queue Name	The name of the queue.
   Min Sequence Number	This column is not applicable to Sun Java System Message Queue.
   Max Sequence Number	This column is not applicable to Sun Java System Message Queue.
   Available Count	The number of unprocessed messages in the queue.
   Number of Receivers	The number of receivers for this queue.
   Last Published Date/Time	This column is not applicable to Sun Java System Message Queue.

2. The Messages tab in the lower portion of the Details panel displays information about any messages in the topic or queue. The Messages tab includes a toolbar.

3. Topics also include a Summary tab and a Subscribers tab. The Subscribers tab displays information about durable subscribers. The toolbar enables you to create a new durable subscriber and to unsubscribe an existing durable subscriber.