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Apache hangs with semget: No space left on device error message on /etc/httpd/logs/error_log

Solution,

Execute commnads a root.
First make sure apache is using it

ipcs -s

If you are seeing a lot of nobody owned process, there is problem .. Follow the next steps to correct it.

service httpd stop
/usr/bin/ipcrm sem $(/usr/bin/ipcs -s | grep nobody | awk ‘{print$2}’)
service httpd start

Thanks