Tech Tip: How to Enable Debugging for Fast Data Masker (FDM)

Discussion created by gilta03 Champion on Apr 27, 2017

This document can also be viewed at How to Enable Debugging for Fast Data Masker (FDM) 


This document highlights the various approaches that can be used to obtain detailed debugging information from Fast Data Masker (FDM). This information is helpful while troubleshooting any issue faced with the product.

CA Test Data Manager (TDM)- Fast Data Masker (FDM) 3.5 and above.

Option 1:

- Pre-requisites: Please exit out of the FDM application before starting.

  1. Go to the FDM directory folder. The default location for this is C:\Program Files\Grid-Tools\FastDataMasker

  2. Open a command prompt from this window. One way to do this is to type in 'cmd' in front of the file path and hit 'Enter' on your keyboard.

    cmd fdm.png

  3. Enter the command java -jar GTMAPPER.exe. This will launch FDM and record debugging information.

    java -jar gtmapper.png

  4. Select a database profile and click the 'Connect' button.

    fdm db connection.png

  5. With the command prompt still open, recreate the issue you are experiencing.

  6. You should see a stack trace appear in the command prompt. This means you successfully enabled debugging. If you do not know how to fix the issue after analyzing the stack trace, then please record this information, and send it to support. The following steps will tell you how to accomplish this.

    fdm mask.PNG

  7. At the top of the command prompt window, right-click, select 'Edit' from the list.

  8. Click on the 'Mark' option.

    cmd edit mark.png

  9. You should be able to highlight the text in the command prompt. Select all of the text and hit 'Enter' on your keyboard. Now the information has been copied to your clipboard.

  10. Paste the text into a program like 'Notepad'.


  11. Now you can analyze the log file or attach this information to your support case.


Option 2:

  1. Launch FDM.

  2. Connect to a database profile.

  3. Create your masking rules.

  4. In the 'Options' tab, set the 'DIAGLEVEL' to 2. 

    diaglevel 2.PNG

  5. In the 'Summary' tab, click the 'Save & Run Mask' button.

    fdm error1.png

  6. Once the masking is complete or errors out, go to your FDM log folder. By default this is located at C:\%AppData%\Roaming\Grid-Tools\FastDataMasker\Logs.

    appdata log1.png

  7. Now you can analyze the log file or attach this information to your support case.
Additional Information:

If you experience any further issues, please open a support case on or call one of these numbers