Messaging workspace

This workspace displays data provided by the Messaging Engine attributes.

In this workspace, you can view of performance counters of the Messaging Engines supported by a server. WebSphere® Application Server Version 5.1 based products do not support this workspace.

Notes:
  • This workspace reports zeros for resource data on the first invocation if PMI data collection is configured for on-demand sampling (that is, if your site set configuration value Resource Data Collection Method to On Demand) or if you have not yet run applications that generate PMI resource data. To report resource data in this workspace after installing and configuring the data collector, use the WebSphere administrative console to set the appropriate PMI instrumentation level.
  • Because of high processor usage, the monitoring agent provides on-demand sampling by default. To activate PMI monitoring, you must first select this workspace and then select it again later. Each time you select the workspace, it displays the data collected during the interval between selections.
The predefined workspace contains the following items:
  • Average Local Wait Time - History graph, which shows the historical time spent by messages on this durable subscription on consumption
  • Expired Messages - History graph, which shows the number of report-enabled messages that expired while on this queue
  • Incomplete Topic Publications - History graph, which shows the number of publications not yet received by all historical subscribers.
  • Total Published - History graph, which shows the historical number of publications to the messaging engines.
  • Messaging Engines report, which displays the aggregated information about each messaging engine. A messaging engine is a server component that provides the core messaging functionality of a service integration bus. A messaging engine manages bus resources and provides a connection point for applications

Accessing the Messaging workspace

To access this workspace, complete the following steps:
  1. Within the Navigator, expand Windows Systems, Linux® Systems, z/OS® Systems, or UNIX Systems, as appropriate for the node you are monitoring.
  2. Within the node list, expand the entry that corresponds to the node that you want to select.
  3. Within that node list of monitored applications, expand the list of WebSphere agents.
  4. Within the list of available agents, expand the WebSphere Application Server of your choice.
  5. Within that server list of available WebSphere Application Server workspaces, click the Platform Messaging entry.