Oracle : Ошибка ORA-07251

"spcre: semget error, could not allocate any semaphores."
*Cause: Semget failed to even allocate a single semaphore. Either they are
all in use or the system is not configured to have any semaphores.
*Action: Check to see if all semaphores are in use. Check to see if
system is configured to have semaphores. Check errno.

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