Nagios Support Forum

Posted: **Mon Jul 02, 2018 10:38 am**

Hi everyone!

ON console, when i try to see Service Alert History for whatever service, i can see only events for present log file

File: /var/log/nagios/nagios.log

My nagios core is configured to log files under non default path (/usr/local/nagios/var/archives/). Logs are saved on custom folder: /var/log/nagios

But my problem is when i try to browse on console view for previos log history (whith the arrows backwarding), following error appears!

Error: Cannot open log file '/usr/local/nagios/var/archives/nagios-07-02-2018-00.log' for reading!

But from my view that has no sense, because rotation logs are under /var/log/nagios, not under /usr/local/nagios/var/archives/nagios!

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root@emonpi(ro):nagios# ls -l /var/log/nagios/nagios.*
-rw-rw-r-- 1 nagios nagios 1052755 Jul  2 17:32 /var/log/nagios/nagios.log
-rw-rw-r-- 1 nagios nagios 1073833 Jul  2 08:17 /var/log/nagios/nagios.log.1
-rw-rw-r-- 1 nagios nagios 1214014 Jul  2 00:17 /var/log/nagios/nagios.log.2

My nagios.cfg

nagios.cfg
-------------------------

# LOG FILE
# This is the main log file where service and host events are logged
# for historical purposes. This should be the first option specified
# in the config file!!!

log_file=/var/log/nagios/nagios.log
#log_file=/usr/local/nagios/var/nagios.log

permissions seems to be ok for nagios and apache:

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root@emonpi(ro):nagios# ls -l /usr/local/nagios/var
total 428
-rw-r--r-- 1 nagios nagios   110407 Jul  2 17:15 objects.cache
-rw------- 1 nagios nagios   153642 Jul  2 17:15 retention.dat
drwxr-xr-x 2 nagios www-data   4096 Jul  2 17:15 rw
drwxr-xr-x 3 root   root       4096 Jun 25 22:22 spool
-rw-rw-r-- 1 nagios nagios   156396 Jul  2 17:29 status.dat
drwxr-xr-x 2 root   root       4096 Jun 25 22:24 tmp

Where is my mistake? My nagios core is in the last release (Version 4.4.0
) Thanks in advance

Posted: **Mon Jul 02, 2018 2:36 pm**

When ever you want to view the previous history in the GUI, it looks at the archived log files.
For your custom path, you need to adjust the log_archice_path to match.
Edit the nagios.cfg file and change the following option to this.

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log_archive_path=/var/log/nagios/archives

Make sure this path exist and is writable be Nagios

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/var/log/nagios/archives

Save the settings and when the log file gets archived, (Daily, Midnight) it will be written to that folder and tomorrow it should be there.

Posted: **Tue Jul 03, 2018 3:38 am**

My greetings tgriep!

Thats the solution! After config nagios.cfg and restart service, now Nagios Console shows message of rotation pointing to new source:

/var/log/nagios/archives

So, as you comment before, lets wait to normal rotation of files. Thanks for your excelent support!

Posted: **Tue Jul 03, 2018 11:16 am**

I am glad your issue has been resolved! I will be locking this topic how. If you have any more questions/issues, please start a new thread.

Nagios Support Forum

Cannot open log file '/usr/local/nagios/var/ for reading!

Cannot open log file '/usr/local/nagios/var/ for reading!

Re: Cannot open log file '/usr/local/nagios/var/ for reading

Re: Cannot open log file '/usr/local/nagios/var/ for reading

Re: Cannot open log file '/usr/local/nagios/var/ for reading