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Semaphores exhausted: OS support please check: 0 semaphores available.

Get current Semaphores value:

# cat /proc/sys/kernel/sem

# cat /etc/sysctl.conf
250 32000 32 128
max semaphores per array = 250
max semaphores system wide = 32000
max number of arrays = 128

Show current SEMAPHORES parameter:

# ipcs -l

Temporary increase Semaphores value:

# sysctl -w kernel.sem="500 32000 32 256"

Permanent increase Semaphores value:

# vi /etc/sysctl.conf

Load sysctl settings from the default file /etc/sysctl.conf.

# sysctl -p

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