Nagios Support Forum

Dear Expert

while checking found @03:40 nagios.log stopped updating, how to fix?

pwd
/usr/local/nagios/var

-rw-r--r-- 1 nagios nagios 0 Jul 26 03:40 nagios.log <<<<<<< should update
-rw-r--r-- 1 nagios nagios 976895 Jul 26 11:01 nagios.log-20150726 <<<<<<<<< should stop updating

-rw-r--r-- 1 nagios nagios 2745343 Jul 26 11:01 npcd.log <<<<<<< updating (its okay)
-rw-r--r-- 1 nagios nagios 10327712 Jul 26 03:39 npcd.log-20150726 <<<<<<<<<<< stopped (its okay)

-rw-rw-rw- 1 nagios nagios 8961227 Jul 26 11:01 perfdata.log <<<<<<<< updating (its okay)
-rw-rw-rw- 1 nagios nagios 3709910 Jul 26 03:39 perfdata.log-20150726 <<<<<<<<<< stopped (its okay)

currently issue with nagios.log file, if same thing goes wrong with npcd.log , perfdata.log how to fix? (its additional info)

After posting this , I found there is some role of lock file , ndo2db.lock , nagios.lock ,, I don't know what was the last value but currently showing
more /usr/local/nagios/var/nagios.lock
20987

Our senior has fixed this issue but need some guidance from you , document so we can fix in future too without troubling to you/our senior.

-rw-r--r-- 1 nagios nagios 6 Jul 26 11:18 nagios.lock
-rw-r--r-- 1 nagios nagios 48657 Jul 26 11:44 nagios.log <<<<< now updating (it okay now)
-rw-r--r-- 1 nagios nagios 1010127 Jul 26 11:18 nagios.log-20150726 <<<<<< stopped updating (its okay now)

Regards

The lock file contains the PID, try restarting nagios:
If that happens with the others I would restart them as well.

Not sure how that could have occurred though, this is the first I've seen it.

Thanks ssax

as per your hint, checked and found he did => /etc/init.d/nagios restart

before closing, can you please explain what is difference between /etc/init.d/nagios restart AND service nagios restart

Regards

They are essentially the same thing. service just has some additional steps involved related to consistency:

http://stackoverflow.com/questions/2250 ... vice-start

Dear Expert

ls -l /usr/local/nagios/var | grep -i nagios.lo
-rw-r--r-- 1 nagios nagios 5 Jul 30 14:51 nagios.lock
-rw-r--r-- 1 nagios nagios 0 Aug 2 03:42 nagios.log
-rw-r--r-- 1 nagios nagios 969425 Aug 2 10:57 nagios.log-20150802

Today again it happened (new nagios.log file is 0 byte not updating), I did not do any service restart instead did Applied Configuration and okay. Looks it will happen again every week (Sunday). Why? Any solution?

-bash-4.1$ ls -l /usr/local/nagios/var | grep -i nagios.lo
-rw-r--r-- 1 nagios nagios 6 Aug 2 10:59 nagios.lock
-rw-r--r-- 1 nagios nagios 39734 Aug 2 11:20 nagios.log
-rw-r--r-- 1 nagios nagios 972031 Aug 2 10:59 nagios.log-20150802

merged two files (work around solution)

cat nagios.log-20150802 nagios.log > nagios.log
cat: nagios.log: input file is output file

Regards

What specific version of XI are you running? You can grab it from the bottom left hand side of the XI web interface.

Dear ssax

Nagios XI 2014R2.0

Regards

Can you post the nagios.cfg?

Do you have anything configured for nagios in /etc/logrotate.d or /etc/logrotate.conf? If so, please attach the files. Also, please attach a sanitized copy of your /usr/local/nagios/etc/nagios.cfg.

Could you run the following and post the output so we can get the settings for logging?