Caught SIGTERM

[Pratapa]

Hi,

We are using Nagios XI.

Following message is continously appearing in the alert history of a host.

Caught SIGTERM, shutting down...

What does this interpret.

Pratap

[gormank]

I think more info, such as nearby messages from nagios.log are needed.
SIG means signal, and TERM means terminate, so a process got a terminate signal from (I'd guess) NRPE or NCPA, possibly because the length of time to run a check exceeded the defined timeout.

[pbroste]

Hello Pratap,

Thanks for reaching out today about the service shutdowns you are experiencing.

I see that there was a previous post referring to brokers, so you may want to make note of that while you are reviewing the nagios logs looking for these error messages.

Code: Select all

cat /usr/local/nagios/var/nagios.log

Here is the configuration file '/usr/local/nagios/etc/nagios.cfg' for any brokers like ndo or mod_gearman.

Code: Select all

grep -Ei 'broker' /usr/local/nagios/etc/nagios.cfg

Thanks,
Perry

[Pratapa]

Following are the nearby messages.

[07-11-2021 02:00:15] HOST DOWNTIME ALERT: CS-GP-JJ-GG678-M02-02;STARTED; Host has entered a period of scheduled downtime
Program Start[07-11-2021 02:00:03] Nagios 4.4.6 starting... (PID=2713)
Program End[07-11-2021 02:00:02] Caught SIGTERM, shutting down...
Program End[07-11-2021 02:00:02] Caught SIGTERM, shutting down...

[Pratapa]

July 10, 2021 02:00

Program End[07-10-2021 02:00:03] Caught SIGTERM, shutting down...

July 09, 2021 21:00

Host entered a period of scheduled downtime[07-09-2021 21:00:00] HOST DOWNTIME ALERT: CS-GP-JJ-GG678-F02-01;STARTED; Host has entered a period of scheduled downtime

July 09, 2021 20:00

Program Start[07-09-2021 20:14:52] Nagios 4.4.6 starting... (PID=27039)
Program End[07-09-2021 20:14:51] Caught SIGTERM, shutting down...
Program End[07-09-2021 20:14:51] Caught SIGTERM, shutting down...
Program End[07-09-2021 20:14:51] Caught SIGTERM, shutting down...

July 09, 2021 07:00

Host exited from a period of scheduled downtime[07-09-2021 07:00:00] HOST DOWNTIME ALERT: CS-GP-JJ-GG678-F02-01;STOPPED; Host has exited from a period of scheduled downtime

July 09, 2021 02:00

Host entered a period of scheduled downtime[07-09-2021 02:00:14] HOST DOWNTIME ALERT: CS-GP-JJ-GG678-F02-01;STARTED; Host has entered a period of scheduled downtime
Program Start[07-09-2021 02:00:03] Nagios 4.4.6 starting... (PID=14324)
Program End[07-09-2021 02:00:03] Caught SIGTERM, shutting down...
Program End[07-09-2021 02:00:03] Caught SIGTERM, shutting down...




Why Nagios process is restarting these many times. What made the Nagios process to restart.