We are using the below DOC for Database upgrade from 12.1,12.2 to 19c(19.12) and parallelly migrating it as PDB into a container,
The Below process is for RAC environment:-
Reusing the Source Standby Database Files When Plugging a non-CDB as a PDB into the Primary Database of a Data Guard Configuration ( Doc ID 2273304.1 )
1.Before Starting upgrade, Copy the PFILE and PASSWORD file from the existing 12.1/12.2 home to new home 19.12 at DR side
cp /u01/app/oracle/product/12.2.0.1/dbhome_1/dbs/inittestdbdr1.ora /u01/app/oracle/product/19.0.0.0/dbhome_1/dbs
cp /u01/app/oracle/product/12.2.0.1/dbhome_1/dbs/orapwtestdbdr1.ora /u01/app/oracle/product/19.0.0.0/dbhome_1/dbs
And the database is upgraded successfully but DR database is out-of-sync at the step:17 in the DOC 2273304.1
We started seeing the issue when we plugin the xml file to create PDB in primary db and started the MRP in standby.
