How to fix the Oracle error ORA-13855: Tracing for service (module/action) string on instance string is already enabled?

In this post, you’ll learn more about the Oracle ErrorORA-13855: Tracing for service (module/action) string on instance string is already enabled with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-13855: Tracing for service (module/action) string on instance string is already enabled

Reason for the Error ORA-13855: Tracing for service (module/action) string on instance string is already enabled

Attempt to enable a service-level tracing which has been already enabled on a specific instance

How to fix the Error ORA-13855: Tracing for service (module/action) string on instance string is already enabled ?

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

Supply correct service(module/action), or disable and re-enable tracing with different bind/wait options