Re: [SSSD-users] heartbeat for Domain
On (22/05/14 15:32), Daniel Jung wrote:
(Fri May 23 00:30:33 2014) [sssd] [service_send_ping] (4): Pinging
LDAP
(Fri May 23 00:30:33 2014) [sssd] [service_send_ping] (4): Pinging nss
(Fri May 23 00:30:33 2014) [sssd] [service_send_ping] (4): Pinging pam
(Fri May 23 00:30:33 2014) [sssd] [ping_check] (4): Service LDAP replied to
ping
(Fri May 23 00:30:33 2014) [sssd] [ping_check] (4): Service pam replied to
ping
(Fri May 23 00:30:33 2014) [sssd] [ping_check] (4): Service nss replied to
ping
I see that based on timeout setting, there is 10 secs timeout setting. What
exactly does Pinging LDAP do? because i dont see any packets coming thru
the line using tcpdump from the hosts listed in the URI.
SSSD is not single process application. There are various processes which
servers different purposes. The main process (sssd) monitor all child processes
and try to restart unresponsive process. The main process does not use ICMP
ping. For all communication, unix sockets are used.
man page says:
If a service is not responding to ping checks (see the “timeout”
option), it is first sent the SIGTERM signal that instructs it to
quit gracefully. If the service does not terminate after
“force_timeout” seconds, the monitor will forcibly shut it down by
sending a SIGKILL signal.
LS