Verifying a Source by Sampling Rows
For Local Log File and Web Feed sources, you can sample five rows of the source during setup in order to verify that the source has data.
To do so:
1.Set up the source with all applicable criteria.
2.Select the Sample Five Rows from Source button.
If you have configured your source correctly, five rows of data should appear in the box below.
You can use the Last Run button to check the script for the source.