Heat Map Widget

This widget is used to visualize various thresholds in the form of a colored heat map.

The Heat Map widget is useful to visualize data in the form of a heat map.

Use the following information to configure the widget:

Field Description
Fetch data from source
Query

Enter a search query.

  • To start an EQL statement, enter USE.
  • To start an SQL statement, enter SELECT.

You can search based on filter and time Bloks as well. After you enter the search query, the columns from the query are used as field options in the Heatmap widget configuration section.

For more information about EQL search syntax, see Event Query Language Reference.

Date & Time You can enter absolute and relative time ranges.

For example, enter -5h as a relative time range to display results for events that occurred in the past 5 hours.

For more information and examples, see Time Range Expressions.

Heatmap widget configuration
X-axis data Select the column name to define the X-axis.
Y-axis dataSelect the two columns to define the Y-axis of the widget.
Tile Value Select the column name by which the treemap tile is to be represented. The value of this column is used for the size of the tile.

If the column names are already defined in the search query, the Tile Value column is automatically filled. Otherwise, as you start typing in the field, the available matching column names are displayed.

Use Color Axis In the Min Color and Max Color fields, specify the range of minimum and maximum values of the color to be represented on the axis.

To get the right color spread for the tile values, you must adjust the color axis.

Use Color Threshold

Define the threshold range for the colors on the heat map.

  • If Tile Value is below the threshold range, the tile color is green.
  • If Tile Value is above the threshold range, the tile color is red.
  • If Tile Value is in between the threshold range, the tile color is orange.
Use Color Value Define the column name by selecting the column. The color represented by the Use Color Value field is used to color the tiles on the chart.

To return specific color values, you can use Enrichment List or EQL Conditional functions such as IIF in the query.

If this field is specified, the Use Color Axis field is ignored.
Widget description Enter a short description for the widget. The description is displayed on the Advanced Dashboard when you hover over the widget.
Auto load

Turn on the toggle to automatically load widget data on the Advanced Dashboard as soon as you save the widget or when you navigate to the dashboard.

Disabling the Auto load option also disables the Auto refresh option. However, you can manually refresh the widget on the Advanced Dashboard to load its data.

Default:

  • Disabled for widgets created in LogLogic LMI 6.3.1 and later
  • Enabled for the widgets created in LogLogic LMI 6.3.0 and earlier
Auto refresh

Turn on the toggle to refresh the widget every few seconds.

This setting is enabled only if the Auto Load option is enabled.

Default: OFF

Refresh widget every If Auto refresh is set to ON, then enter a time interval in seconds to refresh the widget. Refresh action starts after the data is completely retrieved and displayed.

Examples

For the search query:

use LogLogic_Appliance | GROUP BY ll_eventStatus, ll_sourceIP | COLUMNS ll_eventStatus, ll_sourceIP, count(*) as count | ll_eventStatus is NOT NULL | (ll_eventStatus != '')

the X-axis is ll_eventStatus and the Y-axis is ll_sourceIP

The following are examples of a Heat widget:

For the search query:

use LogLogic_Appliance | GROUP BY ll_eventStatus, ll_sourceIP | COLUMNS ll_eventStatus, ll_sourceIP, count(*), IIF(ll_eventStatus ='failed', 'red', 'green') AS color | ll_eventStatus is NOT NULL | (ll_eventStatus != '')

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