How to fix the Oracle error ORA-15517: cannot start parallel preprocessing worker?

In this post, you’ll learn more about the Oracle ErrorORA-15517: cannot start parallel preprocessing worker with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-15517: cannot start parallel preprocessing worker

Reason for the Error ORA-15517: cannot start parallel preprocessing worker

One of the parallel preprocessing workers could not be started.

How to fix the Error ORA-15517: cannot start parallel preprocessing worker ?

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

Find the root cause or simply preprocess the workload using only one process.