DCS Stacks workspace

This workspace displays data provided by the DCS Stack attributes.

This workspace displays aggregated information about each DCS stack within the entire WebSphere® Application Server domain, including multiple nodes and servers.

Important:
  • This workspace reports blanks 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:
  • Highest Message Buffer Reallocations bar chart, which displays the highest number of message buffer reallocations that occurred as a result of inadequate buffer size
  • Most Sent Messages bar chart, which shows most frequent number of message buffer reallocations that occurred as a result of inadequate buffer size
  • High Severity Congestion Events bar chart, which shows the number of times that a high severity congestion event for outgoing messages was raised
  • DCS Statistics report, which displays information for the DCS stack data, including incoming and outgoing message size, sent messages, and high severity congestion events

Accessing the DCS Stacks 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 DCS Stacks entry.