How to fix the Oracle error ORA-39107: Master process string violated startup protocol. Master error:?

In this post, you’ll learn more about the Oracle ErrorORA-39107: Master process string violated startup protocol. Master error: with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-39107: Master process string violated startup protocol. Master error:

Reason for the Error ORA-39107: Master process string violated startup protocol. Master error:

The master process whose name is listed started up but then exited before notifying the creating process that it was finished with initialization.

How to fix the Error ORA-39107: Master process string violated startup protocol. Master error: ?

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

Refer to any following error messages for possible actions. Also, check the trace log for the failed process, if one was created, to see if there is any additional information about the failure. Correct the error, if possible, and try the operation again. If the error occurs again, contact Oracle Customer Support and report the error.