How to fix the Oracle error ORA-02721: osnseminit: cannot create semaphore set?

In this post, you’ll learn more about the Oracle ErrorORA-02721: osnseminit: cannot create semaphore set with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-02721: osnseminit: cannot create semaphore set

Reason for the Error ORA-02721: osnseminit: cannot create semaphore set

The Fast driver failed to get a semaphore set.

How to fix the Error ORA-02721: osnseminit: cannot create semaphore set ?

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

The system-imposed limit on semaphores or semaphore identifiers may have been exceeded. Read the returned operating system error code and check with your system administrator.