I have an Oracle 11gR2 Database which has been working fine for 10 years, But when I migrated to 12.2, the Database always works, only it disconnects all the time from the application.
with a lot of cuts whith ORA-03114 not connected to ORACLE message in the alertlog , when these cuts occur, you have to reconnect.
I even modified the sqlnet. ora file to fill in the SQLNET.EXPIRE_TIM parameter to 36000. but the problem continues, I have already searched everywhere on the internet, but without success.
Can someone help me?
My Database is in RAC with 2 nodes.
Thank you.