12c Dbua Hung At 0% while retriving hostname ([DatabaseQueryManager.getHost:200] Failed to connect sqlengine)

(Doc ID 2138715.1)

Last updated on JULY 19, 2017

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 12.1]
Information in this document applies to any platform.


While using DBUA to upgrade to higher version ( 12c ), it might fail with below errors (observed in dbua trace log file):





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