In this blog post, you’ll learn more about the Sybase Error Semaphore was dropped and the reason for receiving this error
Sybase SQL Error Message
Semaphore was dropped
Reason for this Error
The semaphore this connection was waiting for was dropped during the wait. The semaphore is no longer available. This could happen if the semaphore was explicitly dropped, or if the connection owning the temporary semaphore has disconnected.