You need to configure kamctlrc properly, it probably doesn't know where the pid file is.
# kamctl restart
INFO: Stopping Kamailio :
INFO: stopped
INFO: Starting Kamailio :
2292 pts/0 S+ 0:00 /bin/egrep kamailio
-rw-r--r--. 1 kamailio kamailio 5 Aug 8 11:15 /var/run/kamailio.pid
INFO: PID file exists (/var/run/kamailio.pid)! Kamailio already running?
"service kamailio restart" works fine. What's wrong?
Centos 6.9 x64, Kamailio 4.3 installed from official repo.
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