Nagios System Problem false alert

[jimmy5634]

HI,

Under the System Status it show the a problem with the Performance Grapher, the tool tip shows NPCD as not running.

service npcd status indicates that npcd is running.

I do have performance graphs which I browse through Nagios Graph explorer.

This is a trial install of Nagio XI version 2014R1.3 on a RHEL 6.2.

The System Problem icon is persistently showing "Performance Grapher Is Not Running" although npcd service is running and the performance graphs are being plotted.

rgds

[scottwilkerson]

These are updated via a cron job, is crond running?

[jimmy5634]

yes crond is running


rgds

[tmcdonald]

Let's check your logs then. Please run the following:

Code: Select all

tail -20 /var/log/cron

[jimmy5634]

Aug 13 09:35:01 localhost CROND[31995]: (nagios) CMD (/usr/bin/php -q /usr/local/nagiosxi/cron/cleaner.php > /usr/local/nagiosxi/var/cleaner.log 2>&1)
Aug 13 09:35:01 localhost CROND[31991]: (nagios) CMD (/usr/bin/php -q /usr/local/nagiosxi/cron/dbmaint.php > /usr/local/nagiosxi/var/dbmaint.log 2>&1)
Aug 13 09:35:01 localhost CROND[31992]: (nagios) CMD (/usr/bin/php -q /usr/local/nagiosxi/cron/perfdataproc.php > /usr/local/nagiosxi/var/perfdataproc.log 2>&1)
Aug 13 09:35:01 localhost CROND[31994]: (nagios) CMD (/usr/bin/php -q /usr/local/nagiosxi/cron/deadpool.php > /usr/local/nagiosxi/var/deadpool.log 2>&1)
Aug 13 09:36:01 localhost CROND[32362]: (nagios) CMD (/usr/bin/php -q /usr/local/nagiosxi/cron/sysstat.php > /usr/local/nagiosxi/var/sysstat.log 2>&1)
Aug 13 09:36:01 localhost CROND[32361]: (nagios) CMD (/usr/bin/php -q /usr/local/nagiosxi/cron/nom.php > /usr/local/nagiosxi/var/nom.log 2>&1)
Aug 13 09:36:01 localhost CROND[32367]: (nagios) CMD (/usr/bin/php -q /usr/local/nagiosxi/cron/cleaner.php > /usr/local/nagiosxi/var/cleaner.log 2>&1)
Aug 13 09:36:01 localhost CROND[32368]: (nagios) CMD (/usr/bin/php -q /usr/local/nagiosxi/cron/eventman.php > /usr/local/nagiosxi/var/eventman.log 2>&1)
Aug 13 09:36:01 localhost CROND[32369]: (nagios) CMD (/usr/bin/php -q /usr/local/nagiosxi/cron/perfdataproc.php > /usr/local/nagiosxi/var/perfdataproc.log 2>&1)
Aug 13 09:36:01 localhost CROND[32370]: (nagios) CMD (/usr/bin/php -q /usr/local/nagiosxi/cron/cmdsubsys.php > /usr/local/nagiosxi/var/cmdsubsys.log 2>&1)
Aug 13 09:36:01 localhost CROND[32372]: (nagios) CMD (/usr/bin/php -q /usr/local/nagiosxi/cron/feedproc.php > /usr/local/nagiosxi/var/feedproc.log 2>&1)
Aug 13 09:36:01 localhost CROND[32375]: (nagios) CMD (/usr/bin/php -q /usr/local/nagiosxi/cron/reportengine.php > /usr/local/nagiosxi/var/reportengine.log 2>&1)
Aug 13 09:37:01 localhost CROND[32689]: (nagios) CMD (/usr/bin/php -q /usr/local/nagiosxi/cron/cmdsubsys.php > /usr/local/nagiosxi/var/cmdsubsys.log 2>&1)
Aug 13 09:37:01 localhost CROND[32697]: (nagios) CMD (/usr/bin/php -q /usr/local/nagiosxi/cron/cleaner.php > /usr/local/nagiosxi/var/cleaner.log 2>&1)
Aug 13 09:37:01 localhost CROND[32703]: (nagios) CMD (/usr/bin/php -q /usr/local/nagiosxi/cron/nom.php > /usr/local/nagiosxi/var/nom.log 2>&1)
Aug 13 09:37:01 localhost CROND[32705]: (nagios) CMD (/usr/bin/php -q /usr/local/nagiosxi/cron/reportengine.php > /usr/local/nagiosxi/var/reportengine.log 2>&1)
Aug 13 09:37:01 localhost CROND[32706]: (nagios) CMD (/usr/bin/php -q /usr/local/nagiosxi/cron/feedproc.php > /usr/local/nagiosxi/var/feedproc.log 2>&1)
Aug 13 09:37:01 localhost CROND[32712]: (nagios) CMD (/usr/bin/php -q /usr/local/nagiosxi/cron/perfdataproc.php > /usr/local/nagiosxi/var/perfdataproc.log 2>&1)
Aug 13 09:37:01 localhost CROND[32714]: (nagios) CMD (/usr/bin/php -q /usr/local/nagiosxi/cron/sysstat.php > /usr/local/nagiosxi/var/sysstat.log 2>&1)
Aug 13 09:37:01 localhost CROND[32715]: (nagios) CMD (/usr/bin/php -q /usr/local/nagiosxi/cron/eventman.php > /usr/local/nagiosxi/var/eventman.log 2>&1)

[abrist]

This could be due to a umask issue if the npcd pid is getting created with the wrong credentials. What is the output of:

Code: Select all

umask

[jimmy5634]

the umask for root is 0077

the permission rights for /usr/local/nagiosxi/var/subsys/npcd.pid is -rw------

Changed it to -rw-r--r-- and the System status is OK now

Many thanks for the help. Apparently umask is altered from defaults as part of the system hardening process

[abrist]

Many thanks for the help. Apparently umask is altered from defaults as part of the system hardening process

Yep. You need to craft some logic in /etc/profile to workaround this:
http://www.cyberciti.biz/tips/understan ... usage.html
Or just prepare to change those permissions every time you restart the npcd process.
Or change the umask.
This may also effect other services or files, be aware of it at least.