hserver logging=4 displays an error for select BUILDNUMBER from tau_mdb -- RETURN CODE: DB_FAIL ! What does it mean?

Document ID : KB000044173
Last Modified Date : 14/02/2018
Show Technical Document Details

Question: 

When I set my hserver logging level to “-logging=4”, the log file contains an error for "select BUILDNUMBER from tau_mdb -- RETURN CODE: DB_FAIL !" What does it mean?

Environment:  

CA Harvest SCM all versions and platforms

Answer: 

Previous versions of CA Harvest Change Manager included the option to use an "MDB" database (a common database used by other CA software products as well) rather than a stand-alone Harvest database.  When an HServer process starts up and makes its first connection to the database, it checks to see if the database is an MDB or a stand-alone database  and if so what version. To do this it tries to read the TAU_MDB table which holds the MDB version. Since Harvest no longer includes this option, the error message occurs because the table is no longer there.  This error message can be ignored.