The customer has observed one or more issues with discover scans and you need to implement debug logging to determine what the root cause might be.
The following debug/verbose logging can be implemented on each detection server to troubleshoot issues.
1. On Detection Server, Stop SymantecDLPDetectionServerService
2. Go To -> C:\Program Files\Symantec\DataLossPrevention\DetectionServer\15.8\Protect\config
3. Open FileReaderLogging.properties
4. Search and Set these values. If not present add them at the bottom:
.level = INFO
java.util.logging.FileHandler.level = FINEST
com.vontu.discover.level = FINEST
com.vontu.directorycrawler.level = FINEST
com.vontu.filescan.scanmanager.level = FINEST
com.vontu.discover.fsm.level = FINEST
5. Save file, Start SymantecDLPDetectionServerService
6. Take a run and share the logs.