You can use Ariel Query Language (AQL) statements to create widgets. AQL is a structured
query language that you use to extract, filter, and manipulate event and flow data from the Ariel
database in IBM®
QRadar®.
Before you begin
Your administrator must configure QRadar Proxy for your account, and you need a
valid authentication token so that you can connect to QRadar.
For more information about the Ariel Query Language that you use to create
dashboard items based on AQL data sources, see the IBM
QRadar Ariel Query Language Guide.
Procedure
-
Click Configure dashboard.
The Configure dashboard screen displays a library of available widgets,
with details about each widget.
- Click Create new widget.
-
On the New Dashboard Item page, enter a name and a description for the
widget.
-
Select AQL from the data source list in the Query
section, and enter an AQL statement. For more information, see Tips for creating AQL queries for dashboard charts.
-
Insert existing parameters in the statement. Click the Insert Parameter
icon, and then click Insert for each relevant parameter.
-
To change the default value of the parameter, click the View Parameters
icon, and click Save after you set the default value.
When you change the default value for a
parameter, you're changing the value everywhere the parameter is used in your workspace. If you
don't set the value as the default value, the updated change applies only to the current session.
However, if you set the value as the default, the current session value also uses that value.
Note: The predefined SYSTEM:accountId
parameter returns the account ID of the user who is logged in. System parameters are read only and
you cannot change the default value.
Note: The predefined
SYSTEM:time range parameter enables the user to use a time selector to display
a particular time range in time-based charts on the dashboard.
-
To add a parameter to your workspace, click Add, give the parameter a
name and default value, if needed, and then click Save.
Note: After you add parameters to a widget on a dashboard for the first time, the
Parameters card appears on the dashboard. If you remove parameters from the
widget, and no other widget in that dashboard uses the parameter, the
Parameters card disappears.
-
Pick a refresh time for how often you poll the data source. Choose a refresh rate
that is greater than the selected query time. The default refresh rate is every 5 minutes. The
shorter the refresh time, the greater the performance impact on IBM
QRadar. The timer for the
refresh rate begins after the query is completed.
For example, if the refresh rate is every minute, and the query takes 3 minutes to
complete, the refresh rate starts only after the 3-minute run ends.
-
Click Run Query.
When you first create the widget, you can't configure the charts when no data results
are returned. Try making the criteria in the fields less strict and run the query again.
If your
AQL query contains parameters without any values, enter them on the Parameters
page. You must enter a value for each parameter so that the query runs successfully. If the query is
successful, the results are displayed next to the statement.
-
Create a view in the Views section.
Because you can create multiple views and charts from the same query, give the view a
unique name. By default, the chart's title and status on the title bar are displayed; to hide them,
click the More options icon and switch the settings to
Off.
-
Select a chart type and configure the relevant properties. For use cases to help you decide
which chart type to use, see Widget chart types.
-
Preview how the chart looks and then click Save.
Tip: The labels for the chart come from the queries that are used. If they are
unintelligible in the preview, edit the labels in the View section.
Results
You can edit a widget and save it without rerunning the query. For example, if a
query doesn't return results, such as when the time period isn't long enough to pick up new events,
or if the magnitude or severity value isn't applicable when you run the query, you can save the
widget. If you edit the query, you must run the query again before you can save the widget.
Deleting a widget removes it from all of the dashboards that it belongs to. If the deleted
dashboard contains parameters, the parameters are not deleted.