Viewing subscription-related statistics by using the Amlen WebUI

Use the subscription monitor to view live, aggregated subscription data, and to query the best and worst performing subscriptions across several connection metrics.

You can view subscription monitoring statistics by using the Amlen WebUI, or by using REST Administration APIs. For more information about using a REST Monitoring API to view subscription monitoring statistics, see Viewing subscription-related statistics by using REST Monitoring APIs. For more information about the predefined queries that you can run, see Subscription monitoring.

  1. From the Amlen WebUI, go to the Subscriptions page by selecting Monitoring > Subscriptions.
  2. To filter subscriptions in the subscription monitor table, complete the following steps:
    1. In Topic String, enter a value for the topic string that you want to monitor. The topic string is the name of the topic that the subscription is subscribed to. You can enter one of the following values:
      • A specific topic string.
      • The asterisk sign (*) to select all topic strings.
      • Part of a topic string in combination with the asterisk sign (*) to select a subset of topic strings.
    2. In Client ID, enter a value for the Client ID that you want to monitor. The client ID is the id of the client that owns the subscription. You can enter one of the following values:
      • A specific client ID.
      • The asterisk sign (*) to select all client IDs.
      • Part of a client ID in combination with the asterisk sign (*) to select a subset of client IDs.
    3. In Messaging Policy, enter a value for the messaging policy that you want to monitor. The messaging policy is the name of the messaging policy that is in use by the subscription. You can enter one of the following values:
      • A specific messaging policy name.
      • The asterisk sign (*) to select all messaging policies.
      • Part of a messaging policy name in combination with the asterisk sign (*) to select a subset of messaging policies.
    4. In Subscription Name, enter a value for the Subscription that you want to monitor. The subscription name is the name that is associated with the subscription. You can enter one of the following values:
      • A specific subscription name.
      • The asterisk sign (*) to select all subscriptions.
      • Part of a subscription name in combination with the asterisk sign (*) to select a subset of subscriptions.
    5. In Subscription type, select the type of subscription that you want to filter on. You can select one of the following values:
      • All to view both durable and non-durable subscriptions.
      • Durable to view only durable subscriptions. Durable subscriptions survive a server restart if the subscription is not specifically deleted.
      • Non-durable to view only non-durable subscriptions. Non-durable subscriptions do not survive a server restart.
  3. In Query, select the predefined query that you want to filter on.
  4. Click Refresh to generate the output in the subscription monitor table.
  5. Enter a value into Filter to change the visibility of the data that is shown in the table. The filter is applied to the maximum of items that are returned by the query.
    For example, the subscription might not be in the top 100 subscriptions that match the predefined query that you created.
  6. To delete one or more durable subscriptions and any messages that are buffered for those subscriptions, complete the following steps:
    1. In the first column of the subscription monitor table, select the check boxes next to the durable subscriptions that you want to delete.
    2. If you want to delete all of the durable subscriptions in the currently visible page of the table, select the check box in the header of the first column; this results in all of the subscriptions being selected. If the table spans more than one page, you must repeat this operation on each page.
    3. Click Actions > Delete Durable Subscription to remove the durable subscription, or subscriptions, and associated buffered messages.

The Timestamp is updated to show the time that query is generated.

The subscription monitor table is updated to display the results of the query and any filter that is applied to those results.

You can view the total number of items that are returned in the Total field. You can see the number of items that are selected in the Selected field. You can move through the table of results by using Next Page and Previous Page or Go to a specific page. You can change the number of items to view per page by selecting from the available options.