Enabling Data Sharpening and Configuring Its Defaults
To enable and configure Data Sharpening for a data source configuration, you need to enable the time settings in the data source's settings page. Specifically, a playable time field must be specified in the Global Default Settings on the Visuals tab of the data source configuration. However, Cloudera Impala data sources require additional configuration as described in Enabling Data Sharpening for Cloudera Impala Data Sources.
To configure Data Sharpening in a data source configuration:
- Log into Composer (either as an administrator or as a user who has been assigned to a group with data source management privileges).
Select your data source to start the data source configuration wizard.
Select the Visuals tab.
Select the Global Default Settings. The time bar, search, and Data Sharpening settings for the data source appear.
Make sure Enable Timebar is toggled on. This enables the Data Sharpening settings. If this is toggled off, you cannot configure Data Sharpening settings. For more information about time bar default settings, see Configuring Time Bar Defaults.
Toggle Prefer Sharpening on to enable Data Sharpening for the data source.
Optionally, use the Max Queries slider to specify the maximum number of queries used for Data Sharpening. The default maximum is 10 queries.
Select Finish or Save to save your data source configuration.