On RHEL6: [sssd] [mt_svc_sigkill]: [DOMAIN] is not responding to SIGTERM. Sending SIGKILL.

Issue

In sssd.log:

(Fri Feb 27 13:40:01 2015) [sssd] [service_send_ping] (0x0100): Pinging DOMAIN.COM
(Fri Feb 27 13:40:01 2015) [sssd] [ping_check] (0x0020): A service PING timed out on [DOMAIN.COM]. Attempt [0]
(Fri Feb 27 13:40:11 2015) [sssd] [service_send_ping] (0x0100): Pinging DOMAIN.COM
(Fri Feb 27 13:40:11 2015) [sssd] [ping_check] (0x0020): A service PING timed out on [DOMAIN.COM]. Attempt [1]
(Fri Feb 27 13:40:21 2015) [sssd] [service_send_ping] (0x0100): Pinging DOMAIN.COM
(Fri Feb 27 13:40:21 2015) [sssd] [ping_check] (0x0020): A service PING timed out on [DOMAIN.COM]. Attempt [2]
(Fri Feb 27 13:40:31 2015) [sssd] [service_send_ping] (0x0100): Pinging DOMAIN.COM
(Fri Feb 27 13:40:31 2015) [sssd] [tasks_check_handler] (0x0020): Killing service [DOMAIN.COM], not responding to pings!
(Fri Feb 27 13:40:31 2015) [sssd] [ping_check] (0x0020): A service PING timed out on [DOMAIN.COM]. Attempt [3]
(Fri Feb 27 13:40:41 2015) [sssd] [ping_check] (0x0020): A service PING timed out on [DOMAIN.COM]. Attempt [4]
(Fri Feb 27 13:41:31 2015) [sssd] [mt_svc_sigkill] (0x0010): [DOMAIN.COM][6501] is not responding to SIGTERM. Sending SIGKILL.

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