NPCD process not running in GUI

[vy3734]

Hi,
I have setup a new physical server for Nagios. installation and recovery from old server went fine, NPCD process was running fine until today, it stopped running. I tried restarting the process, the output says NPCD is running but the status is not updating in GUI. Please help!

Thanks!

[vy3734]

Capture.PNG

Attached here is the status as seen on the GUI.

[vy3734]

[nagios@nagios ~]$ ps -ef | grep npcd
nagios 5502 1 0 16:13 ? 00:00:00 /usr/local/nagios/bin/npcd -d -f /usr/local/nagios/etc/pnp/npcd.cfg
nagios 45743 44373 0 16:34 pts/1 00:00:00 grep --color=auto npcd
[nagios@nagios ~]$ uptime
16:34:51 up 7 days, 17:04, 2 users, load average: 3.35, 3.20, 4.41
[nagios@nagios ~]$ sudo /etc/init.d/npcd status
NPCD running (pid 5502).
[nagios@nagios ~]$

Here is some more info from command line.

[vy3734]

Following are the parameters set in npcd.cfg

[nagios@nagios ~]$ cat /usr/local/nagios/etc/pnp/npcd.cfg
user = nagios
group = nagios
log_type = file
log_file = /usr/local/nagios/var/npcd.log
max_logfile_size = 10485760
log_level = -1
perfdata_spool_dir = /usr/local/nagios/var/spool/perfdata/
perfdata_file_run_cmd = /usr/local/nagios/libexec/process_perfdata.pl
perfdata_file_run_cmd_args = -b
npcd_max_threads = 5
sleep_time = 15
load_threshold = 20.0
pid_file=/usr/local/nagiosxi/var/subsys/npcd.pid

[npolovenko]

Hello, @vy3734. What is the output of:

sudo /usr/local/nagiosxi/scripts/manage_services.sh status npcd

And:

su - nagios
/etc/init.d/npcd status

[vy3734]

Here's what i found:
[root@ nagios]# /usr/local/nagiosxi/scripts/manage_services.sh status npcd
● npcd.service - SYSV: Visit the Website at http://sourceforge.net/projects/pnp4nagios/
Loaded: loaded (/etc/rc.d/init.d/npcd; bad; vendor preset: disabled)
Active: inactive (dead) since Wed 2018-10-31 16:47:37 EDT; 21min ago
Docs: man:systemd-sysv-generator(8)
Process: 26036 ExecStop=/etc/rc.d/init.d/npcd stop (code=exited, status=0/SUCCESS)
Process: 31731 ExecStart=/etc/rc.d/init.d/npcd start (code=exited, status=0/SUCCESS)
Main PID: 5502 (code=exited, status=0/SUCCESS)

Oct 31 16:25:55 NagiosServer systemd[1]: Starting SYSV: Visit the Website at http://sourceforge.net/projects/pnp4nagios/...
Oct 31 16:25:55 NagiosServer npcd[31731]: NPCD already started
Oct 31 16:25:55 NagiosServer systemd[1]: Started SYSV: Visit the Website at http://sourceforge.net/projects/pnp4nagios/.
Oct 31 16:47:37 NagiosServer npcd[26036]: NPCD Stopped.
You have new mail in /var/mail/root
[nagios@nagios]$ /etc/init.d/npcd status
head: cannot open ‘/usr/local/nagiosxi/var/subsys/npcd.pid’ for reading: Permission denied
error: list of process IDs must follow -p

Usage:
ps [options]

Try 'ps --help <simple|list|output|threads|misc|all>'
or 'ps --help <s|l|o|t|m|a>'
for additional help text.

For more details see ps(1).
NPCD not running.

I then tried to restart the service
[nagios@nagios]$ sudo /etc/init.d/npcd restart
NPCD Stopped.
NPCD started.
[nagios@nagios]$ sudo /etc/init.d/npcd status
NPCD running (pid 17010).

[npolovenko]

@vy3734, What is the permission of the npcd.pid file?

ls -l /usr/local/nagiosxi/var/subsys/npcd.pid

Please remove it, and then reboot the server shutdown -r now.
Then rerun this command again:

[nagios@nagios]$ /etc/init.d/npcd status

[vy3734]

I removed the pid file and restarted the process.
[nagios@root ~]$ ls -l /usr/local/nagiosxi/var/subsys/npcd.pid
-rw------- 1 root root 5 Oct 31 17:42 /usr/local/nagiosxi/var/subsys/npcd.pid
[root@root]# rm /usr/local/nagiosxi/var/subsys/npcd.pid
rm: remove regular file ‘/usr/local/nagiosxi/var/subsys/npcd.pid’? y
[nagios@nagios ~]$
[nagios@nagios ~]$ sudo /etc/init.d/npcd status
NPCD not running.
[nagios@nagios~]$ sudo /etc/init.d/npcd restart
rm: cannot remove ‘/usr/local/nagiosxi/var/subsys/npcd.pid’: No such file or directory
NPCD was not running.
NPCD started.
[nagios@nagios~]$ sudo /etc/init.d/npcd status
NPCD running (pid 13933).
The GUI still shows the process as not running.
Would re-installing npcd help?

I do have root access to start/stop/restart processes related to nagios, but i cannot reboot the server. Is it mandatory that we reboot the server?

[ssax]

Please try this and see if it works:

Code: Select all

service npcd stop
systemctl npcd start

Then see if it shows up properly.

[vy3734]

[nagios@NagiosServer ~]$ sudo /etc/init.d/npcd stop
NPCD Stopped.
You have new mail in /var/spool/mail/nagios

[root@NagiosServer chefsolo]# systemctl start npcd
[root@NagiosServer chefsolo]# systemctl status npcd
● npcd.service - SYSV: Visit the Website at http://sourceforge.net/projects/pnp4nagios/
Loaded: loaded (/etc/rc.d/init.d/npcd; bad; vendor preset: disabled)
Active: active (running) since Wed 2018-10-31 17:21:15 EDT; 40min ago
Docs: man:systemd-sysv-generator(8)
Process: 26254 ExecStop=/etc/rc.d/init.d/npcd stop (code=exited, status=0/SUCCESS)
Process: 37885 ExecStart=/etc/rc.d/init.d/npcd start (code=exited, status=0/SUCCESS)
Main PID: 27570 (npcd)
CGroup: /system.slice/npcd.service
‣ 27570 /usr/local/nagios/bin/npcd -d -f /usr/local/nagios/etc/pnp/npcd.cfg

Oct 31 17:21:15 NagiosServer systemd[1]: Starting SYSV: Visit the Website at http://sourceforge.net/projects/pnp4nagios/...
Oct 31 17:21:15 NagiosServer npcd[37885]: NPCD already started
Oct 31 17:21:15 NagiosServer systemd[1]: Started SYSV: Visit the Website at http://sourceforge.net/projects/pnp4nagios/.