Nagios Support Forum

Hello all.

I've been using Nagios on my corporation with great success.
But there's a behavior on logrotation that I not quite understand.

Logrotation is enabled, but no notifications are kept on rotated files.
log_file=/opt/nagios/nagios/var/nagios.log
log_rotation_method=d
log_archive_path=/opt/nagios/nagios/var/archives

For the current day (viewing the log_file), I get all notifications sent.
For any history (pressing the back red arrow), I always get the "No notifications have been recorded in this archived log file".

Any help solving/debugging, would be appreciated.

Are you using the standard Logrotate tool?

I'm using Nagios logrotate method, didn't change anything.

How do I even debug such behaviour? Is there any "flag"/anything I can do to see logrotation steps and try and debug why is it not rotating some lines?

Are your logs being rotated correctly? Check the archives:
If they are there, tail one to make sure they are readable.

They are there, and readable.
But they "lost" some information. As if they where filtered when they where rotated.

hmmm. Never heard of that. What type of information is missing from the archived logs?

Notifications, for example.

Alright. Are there any notifications logged in the current nagios.log file? Or are the notification logs missing from that file as well?

Nope. The current file is all OK. Only the rotated logs are missing the notifications.

Run the following command and post the results in a code wrap. We are going to check logging options in nagios.cfg