15-4 Configuring and Using the Diagnostics Framework for Oracle WebLogic Server
For more information, see the following topics in Oracle WebLogic Server Administration Console Help:
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Work with views in the Monitoring Dashboard
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Start and stop views
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Create custom views
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Copy a view
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Delete a view
15.3.2 Metric Browser
Charts display metrics, which are attributes of MBean instances. Metrics can be either of the following:
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Metrics whose values are obtained from active MBean instances in a running WebLogic Server instance.
The running server instances are polled at regular intervals, and the charts that display the metric values that are returned are continually updated see
Section 15.4.1.1, Current Time Range Charts .
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Collected metrics whose values are obtained from the Archive. Collected metrics have been previously captured by the WLDF Harvester and
placed in the Archive, and they provide a record of past state. Charts that display only collected metrics are not updated see
Section 15.4.1.2, Custom Time Range Charts
. You use the Metric Browser to select the metrics that you want to add to a chart. The
Metric Browser, shown in Figure 15–3
, displays:
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Currently registered WebLogic MBean types
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Currently registered instances of MBean types
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Attributes of the listed registered instances As a convenience for selecting metrics that have been collected by the Harvester, the
Metric Browser includes the Collected Metrics Only button. When you select this button, the Metric Browser displays only collected metrics.
To see metrics for all runtime MBean types regardless of whether instances of them are currently active, select Include All Types. To determine whether a metric was
collected by the harvester, select the metric, or leave the mouse positioned over it. A note window is displayed that provides information about the metric, including
whether or not it is a collected metric that is, collected by the harvester.
Using the Monitoring Dashboard 15-5
Figure 15–3 Metric Browser
To use the Metric Browser, select the server instance containing the metric values you want to display. The Metric Browser can optionally constrain the list of MBean types,
registered instances, and metrics that are displayed to only those for which metric data has been collected, or display all MBean types for the server even if they have no
active instances.
In addition, you do not need to find a metric by first selecting its MBean type and then the instance in which it exists. You can select a metric in any order; for example, you
can start by first selecting a metric, or by first selecting the MBean instance if you prefer. In addition, you can apply filters to each list to further constrain the items that
are displayed.
You can select and filter in any order. Selecting an item in one list may make a selection in another and may also constrain other lists. Note the following behavior:
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Initially the Types list box shows all MBean types as determined by the settings of the Collected Metrics Only and Include All Types checkboxes, the Instances list
box shows all MBean instances, and the Metrics list box shows all metrics.
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Selecting a specific MBean type causes the MBean instances list to be constrained to instances of that type and the metrics list to be constrained to metrics of that
type.
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Selecting none in the Types list specifies that no type is selected, which causes the entries in the Instances and Metrics lists to be unconstrained.
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Selecting a specific MBean instance, either before or after making any other selection, causes:
– The corresponding MBean type in the Types list box to become selected.
15-6 Configuring and Using the Diagnostics Framework for Oracle WebLogic Server
– The entries in the Metrics list to become constrained to only those metrics for
that MBean instance.
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Selecting a specific entry in the Metrics list box, either before or after making any other selection, causes:
– The specific MBean type to which the metric corresponds to become selected
in the Types list.
– The Instances list to be constrained to the MBean instances to which the metric
corresponds.
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When you enter a filter string into any of the list boxes, you constrain the list contents to include only the items that match the filter. The behaviors described in
the preceding items that are used in combination with the filter result in a behavior similar to a logical and.
The effect of these behaviors is to reinforce the relationships among MBean types, MBean instances, and metrics. Each MBean instance is of a specific MBean type, and
each metric corresponds to a particular MBean type. The MBean type determines both all the instances of that type as well as all the metrics that the type has.
For information about using the Metric Browser, see the following topics in Oracle WebLogic Server Administration Console Help:
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Work with the Metric Browser
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Select the server to monitor
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Display items in the Metric Browser
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Display summary notes about MBean instances and metrics in the Metric Browser
15.3.3 View Display Panel
