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тАО03-22-2000 09:41 PM
тАО03-22-2000 09:41 PM
Semaphores
syslog recorded the following error;
diagmond[11744]: Exit due to semaphore failure
Can anyone help me determine the cause of this? I need diagnostics to run
continously. THanks.
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тАО03-22-2000 10:53 PM
тАО03-22-2000 10:53 PM
Re: Semaphores
YOU HAVE TO CHECK THE VALUES OF YOUR SEMVMX AND ALL THE OTHER SEM*** IN YOUR
KERNEL CONFIGURATION FILE.
eg: SEMVMX=32767.
Cheers!
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тАО03-22-2000 10:59 PM
тАО03-22-2000 10:59 PM
Re: Semaphores
Currently, the kernel parameters for semaphores are:
sema 1
semaem 16384
semmap 3074
semmni 3072
semmns 16384
semmnu 2048
semume 2048
semvmx 32767
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тАО03-23-2000 12:10 AM
тАО03-23-2000 12:10 AM
Re: Semaphores
Use the 'ipcs -mobs' command to add up the values of NSEMS at your system peak
time. With this you should be able to know the value to set your SEMMNS.
May I suggest you reduce the following values to:
SEMMAP=2048
SEMMNI=2046
SEMMNS=8192
SEMMNU=2048
SEMUME=1024
This will definitely require a system reboot.
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тАО03-23-2000 01:40 AM
тАО03-23-2000 01:40 AM
Re: Semaphores
3 other V2500s configured the exact same with no problems. Also, in the
syslog, I found this entry:
Mar 23 04:30:50 LVM[20748]: /usr/lbin/lvlnboot -v
Mar 23 04:30:54 diagmond[11744]: Exit due to semaphore failure
We have HAO which seems to be running the lvlnboot commands, as well as other
stuff, early in the AM.