[CentOS] how to calculate how many semaphores already use on server?

Barry Brimer lists at brimer.org
Thu Jul 23 13:27:30 UTC 2009


> we have following setup on sysctl.conf:
>  kernel.sem = 256 32000 128 142
>
> I tried to startup database and have error happen.  I knew problem come from SEMMNS (32000) is not enough.  Does anyone know how to calculate how many semaphores already use on system?

Have you tried "ipcs -u" ?



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