how to shrink log files?!

[xpertech]

the log files seem getting bigger, is it possible to shrink the log files? or delete/remove older than specific date

-rw-r--r--. 1 nagios nagios 11011641755 Oct 15 11:23 event_handler.log
-rw-r--r--. 1 nagios nagios 6206885128 Oct 15 11:23 eventman.log
-rw-r--r--. 1 nagios nagios 5687960481 Oct 15 11:23 sysstat.log

[scottwilkerson]

Depending on your version of XI these should rotate automatically, but there isn't anything in them except debug information so you can safely do the following

Code: Select all

cat /dev/null > /usr/local/nagiosxi/var/event_handler.log
cat /dev/null > /usr/local/nagiosxi/var/eventman.log
cat /dev/null > /usr/local/nagiosxi/var/sysstat.log

[xpertech]

what's the automatic rotate interval(size or time)?

[scottwilkerson]

what's the automatic rotate interval(size or time)?

It's supposed to be 5M

Code: Select all

/etc/logrotate.d/nagiosxi

[xpertech]

do you mean every 5 minutes the newly log data will overwrite old log data?

can we edit/change the rotate time interval?

[scottwilkerson]

do you mean every 5 minutes the newly log data will overwrite old log data?

Sorry, every 5MB (which in your case clearly isn't happening)

can we edit/change the rotate time interval?

Yes, XI uses the linux log rotation and the config can be found here

Code: Select all

/etc/logrotate.d/nagiosxi

It is worth pointing out there were some bugs in this and if you are not on the latest version of XI (5.6.7) you could be experiencing that.

[xpertech]

if rotate every 5MB automatically, why log files oversize in my case?

-rw-r--r--. 1 nagios nagios 11011641755 Oct 15 11:23 event_handler.log
-rw-r--r--. 1 nagios nagios 6206885128 Oct 15 11:23 eventman.log
-rw-r--r--. 1 nagios nagios 5687960481 Oct 15 11:23 sysstat.log

[scottwilkerson]

It is worth pointing out there were some bugs in this and if you are not on the latest version of XI (5.6.7) you could be experiencing that.