How to fix the error ORA-00089: invalid instance number in ORADEBUG command?

In this post, you’ll learn more about the Oracle ErrorORA-00089: invalid instance number in ORADEBUG command with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-00089: invalid instance number in ORADEBUG command

Reason for the Error ORA-00089: invalid instance number in ORADEBUG command

An invalid instance number was specified in a cluster database ORADEBUG command.

How to fix the Error ORA-00089: invalid instance number in ORADEBUG command ?

You can fix this error in Oracle by following the below steps

Reissue the command with valid instance numbers.