Hello Sudhir, please try the following:
- Extend the Splunk Web Session timeout (usually set to 1h) to 2h. This is in Server settings > General settings. If the scan takes longer than the timeout value set here, the scan will terminate.
- If you have upgraded to Splunk 8.0, then please try the latest version of Splunk Platform Upgrade Readiness App (version 2.1.0). It will run faster and will provide you updates on what file is being scanned on the app GUI. If you're able to run Splunk 8.0 in python 3 mode, then the scan will also run faster.
- Scan a smaller subset of apps at a time.
If you still run into issues, then please let us know via email above. Please include list of apps that you're having issues with.