How To Troubleshoot Build Failures (Linux OS)

Hi marcin-vistair ,

My best guess would be that there is a network communication issue or database needs more time then default timeout value. 

You can go to the Configuration Manager - Manage Connectors on the bottom - Oracle and in the Connection String Parameters add CONNECT_TIMEOUT=120000  - Click Save - Rebuild the cube

120000 is value in milliseconds so if you see failure in 120 seconds - try to increase value. 

If this doesn't help, please raise support ticket for more detailed review.