How to fix the Oracle error ORA-12615: TNS:preempt error?

In this post, you’ll learn more about the Oracle ErrorORA-12615: TNS:preempt error with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-12615: TNS:preempt error

Reason for the Error ORA-12615: TNS:preempt error

A request to service an event failed because no event notification has yet been posted.

How to fix the Error ORA-12615: TNS:preempt error ?

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

Not normally visible to the user. For further details, turn on tracing and reexecute the operation. If error persists, contact Oracle Customer Support.