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Data Matcher Timeout

Scenario​

Netwrix Data Classification reports are showing No Data Found

The following error may be present in your instance:

DataMatchingWorker: Data matching has been terminated by the following error: System.Data.SqlClient.SqlException (0x80131904): Execution Timeout Expired.  The timeout period elapsed prior to completion of the operation or the server is not responding. ---> System.ComponentModel.Win32Exception (0x80004005): The wait operation timed out

This error will be found in the DDC Provider log, by default located here: (C:\ProgramData\Netwrix Auditor\Logs\Data Discovery and Classification\Tracing\Netwrix.DDC.Service_FileServers.log).

Solution​

To resolve the issue:

  1. Open DDCCoreSettings.xml with a text editor (C:\ProgramData\Netwrix Auditor\Data Discovery and Classification\DDCCoreSettings.xml).
  2. Increase the SQLCommandTimeout from 1200 to 12000.
  3. Save the file.
  4. Restart the Netwrix Auditor DDC Provider service.
  5. Wait up to 24 hours for the matching process to run.
  6. Check Netwrix Data Classification reports.