How to fix the Oracle error ORA-15558: replay thread encountered unexpected error?

In this post, you’ll learn more about the Oracle ErrorORA-15558: replay thread encountered unexpected error with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-15558: replay thread encountered unexpected error

Reason for the Error ORA-15558: replay thread encountered unexpected error

A single replay thread got disconnected from the server due to an unexpected error.

How to fix the Error ORA-15558: replay thread encountered unexpected error ?

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

Check the Workload Replay Client’s log files and the database server alert log to diagnose the problem.