Symptoms
Apache fails with the following error in ~httpd2/logs/error_log :[emerg] (22)Invalid argument: couldn't grab the accept mutex
[emerg] (22)Invalid argument: couldn't grab the accept mutex
[emerg] (22)Invalid argument: couldn't grab the accept mutex
[emerg] (22)Invalid argument: couldn't grab the accept mutex
Resolution
1.change the directive in the following files:/hsphere/shared/apache2/conf/httpd.conf
/hsphere/shared/apache2/conf/httpd.conf.tmpl.custom
From:
AcceptMutex Default
to:
AcceptMutex flock
2. restart httpd service:
/etc/init.d/httpd stop
sleep 10
/etc/init.d/httpd start