Path to an Alert Metric Value (and a Reference Value)

When you configure an alert, specify two values to compare, and specify a threshold.

The Alert Value
This field provides the path to the metric you are interested in being notified about. The path is structured as follows:

PaneType/SeriesName/CategoryValue/ValueIndex

The Reference Value
This field provides a comparison value. It can be a constant (such as a threshold number) or a different metric value on the same pane. Because it is on the same pane, you do not have to provide the full path. The path for reference is structured as follows

SeriesName/CategoryValue/ValueIndex

Elements Used to Specify the Path to an Alert Metric Value
Path element Notes
Pane Type
PaneType/...

The specific pane type for the selected element type.

Series Name
PaneType/Series Name/...

To set an alert on a value in one series of a multi-series chart, specify the series name that appears in the chart in the SeriesName position of the path.

In a table pane or a single series chart pane, use the value $default. For example: gc/$default/*/2"

Category Value
PaneType/SeriesNameCategoryValue/...

To set an alert on a specific category of information in a chart or table, specify its name in the CategoryValue position of the path.

In a chart
Each chart element, such as a bar or a line, represents a category of information. For example, in the Thread Pool Best Performers chart each thread is a category (shown as a green bar). Use the name that appears for the chart element, or in the tooltip if the full name does not display.
In a table
Each row represents a category of information. The value in the first (left-most) column of the row is the name of the category. Use the name of the first column as the category value.

Not used for time-based panes.

To use all category values, use an asterisk (*) as a wildcard character in the CategoryValue position. For example, "gc/$default/*/2"

If the category value is not found or is defined as “all,” then all the categories in the specified series are considered for condition checking.

Value Index
ElementTypePath/PaneType/SeriesName/CategoryValue/ValueIndex

A specific item of information in a category.

Only used for tables (not for charts).

For tables, use the index of the column from which the value is taken. The first column is ignored. (It is used as the category value). Indexing begins with the second column from the left. The second column index is 0, the third column index is 1, and so on.