In this post, you’ll learn more about the Oracle ErrorORA-16267: Cannot instantiate a Logical Standby during a switchover with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-16267: Cannot instantiate a Logical Standby during a switchover
Reason for the Error ORA-16267: Cannot instantiate a Logical Standby during a switchover
An instantiation of a Logical Standby has been attempted for a primary database that is in the middle of a switchover.
How to fix the Error ORA-16267: Cannot instantiate a Logical Standby during a switchover ?
You can fix this error in Oracle by following the below steps
Execute ALTER DATABASE PREPARE TO SWITCHOVER CANCEL to cancel the switchover, and attempt the instantiation again.