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Global Default Settings

The Global Default Settings section allows you to set the defaults for your time bar and enable or disable the search feature. You can access this section from the Charts page while connecting to or editing the details of your data source.

Configuring the default time settings

In this section, you can select the time attribute that will be displayed on the time bar.
All the time attributes from your data source are listed in the Time Attribute list. Select the required item.

If you do not want to use the time bar, select None (Time Bar is Off).

The selected time attribute will be used as the default and will be displayed on the time bar once you open the chart, as depicted below:

The settings below will be applied to the selected attribute.

Configure other time settings as follows:

  • Enable playback — select this checkbox to show the Play button on the time bar
  • Enable Live mode — select this checkbox to enable playing data in live mode
    • Refresh Rate - specify the refresh rate (a time period for querying the data source).
The time granularity for the refresh rate is defined on the Fields page in the Default column.
  • Delay By - specify the delay time to enable playing data in live mode with the required delay interval.

Configuring the Default Time Range

Once the data are retrieved from the data source, the Start of Data and End of Data are defined. In the Default Time Range section, you can define the time range of your data to be displayed on the time bar by default. In the Select by Range section, set the time period to be visualized on the chart by specifying From and To values. The period will be visualized on your chart.

The default values in the From and To fields are set depending on the time granularity that you have set for the time field on the Fields page. To set the default From and To values, click the icon. In the Choose a time dialog box, you can pick the date from the calendar or set the Dynamic time (see Figure 5).

Figure 5

You can also use the Time Presets section to quickly select the required time range (see Figure 6).

Figure 6

For live (streaming) data sources, you can select the Pin Start Time check box to lock the start time of the range (see Figure 7).

Figure 7

Search Feature

The Search Feature is available for Solr, Elasticsearch, and Cloudera Search data sources and is enabled by default. The Search Feature allows you to enter keywords to quickly filter the data. If you do not want to use this feature upon opening your source, select Disable from the Search Feature list (see Figure 8).

Figure 8

Availability of these settings depends on the configuration of your data source.

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