Nagios Support Forum

Scott,

We are adding fresh routers, we are not adding services for already configured routers.

Whatever routers we are adding, there is no exciting entry in mrtg for.

Ok, then it could be a permissions thing... Lets run And also, if we could tail the httpd error_log while we try to run the wizard we may get a clue

[root@EMSNagios1 libexec]# ls -l /etc/mrtg/mrtg.cfg
-rw-r--r-- 1 apache nagios 3184287 Feb 22 14:21 /etc/mrtg/mrtg.cfg


i did not get any error in httpd log.

You should have at least some output in the error_log can you post what it outputs as shown above?

I checked with below command then i got below error

env LANG=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg --lock-file /var/lock/mrtg/mrtg_l --confcache-file /var/lib/mrtg/mrtg.ok


2013-02-27 13:06:04: ERROR: Target[IP_13][_OUT_] ' $target->[1113]{$mode} ' did not eval into defined data
2013-02-27 13:06:04: ERROR: Target[IP_16][_IN_] ' $target->[1114]{$mode} ' did not eval into defined data
2013-02-27 13:06:04: ERROR: Target[IP_16][_OUT_] ' $target->[1114]{$mode} ' did not eval into defined data
2013-02-27 13:06:04: ERROR: Cannot tune logfile: mmaping file '/var/lib/mrtg/<IP>.rrd': Cannot allocate memory
2013-02-27 13:06:04: ERROR: Cannot update /var/lib/mrtg/<IP>.rrd with '1361950257:1530832:846762' mmaping file '/var/lib/mrtg/<IP>.rrd': Cannot allocate memory
2013-02-27 13:06:04: ERROR: Cannot tune logfile: mmaping file '/var/lib/mrtg/<IP>.rrd': Cannot allocate memory
2013-02-27 13:06:04: ERROR: Cannot update /var/lib/mrtg/<IP>.rrd with '1361950322240' mmaping file '/var/lib/mrtg/<IP>.rrd': Cannot allocate memory

[root@somehost local]# tail /var/log/messages
Feb 27 13:22:59 somehost nagios: Error: Could not open check result queue directory '/usr/local/nagios/var/spool/checkresults' for reading.

wiproltdwiv wrote:2013-02-27 13:06:04: ERROR: Cannot tune logfile: mmaping file '/var/lib/mrtg/<IP>.rrd': Cannot allocate memory
2013-02-27 13:06:04: ERROR: Cannot update /var/lib/mrtg/<IP>.rrd with '1361950257:1530832:846762' mmaping file '/var/lib/mrtg/<IP>.rrd': Cannot allocate memory
2013-02-27 13:06:04: ERROR: Cannot tune logfile: mmaping file '/var/lib/mrtg/<IP>.rrd': Cannot allocate memory
2013-02-27 13:06:04: ERROR: Cannot update /var/lib/mrtg/<IP>.rrd with '1361950322240' mmaping file '/var/lib/mrtg/<IP>.rrd': Cannot allocate memory

This looks like the system is out of memory

wiproltdwiv wrote:Feb 27 13:22:59 somehost nagios: Error: Could not open check result queue directory '/usr/local/nagios/var/spool/checkresults' for reading.

this looks like you have a permissions problem, can you run the following as root

also getting below error

013-02-28 15:05:22: ERROR: Target[10.152.17.1_12][_OUT_] ' $target->[1080]{$mode} ' did not eval into defined data
2013-02-28 15:05:22: ERROR: Target[IP][_IN_] ' $target->[1081]{$mode} ' did not eval into defined data
2013-02-28 15:05:22: ERROR: Target[IO][_OUT_] ' $target->[1081]{$mode} ' did not eval into defined data
2013-02-28 15:05:22: ERROR: Target[IP][_IN_] ' $target->[1082]{$mode} ' did not eval into defined data
2013-02-28 15:05:22: ERROR: Target[IP][_OUT_] ' $target->[1082]{$mode} ' did not eval into defined data
2013

httpd/error.log
[Thu Feb 28 13:28:51 2013] [error] Exception KeyError: KeyError(139946949539808,) in <module 'threading' from '/usr/lib64/python2.6/threading.pyc'> ignored
[Thu Feb 28 14:52:59 2013] [error] [client 10.128.17.4] client denied by server configuration: /var/www/mrtg
[Thu Feb 28 14:53:11 2013] [error] [client 10.128.17.4] File does not exist: /usr/local/nagiosxi/html/mrtg
[Thu Feb 28 15:00:08 2013] [error] [client 10.128.17.4] File does not exist: /var/www/html/var/lib
[Thu Feb 28 15:00:25 2013] [error] [client 10.128.17.4] client denied by server configuration: /var/www/mrtg

permission
drwxrwxr-x 2 nagios nagios 61440 Feb 28 15:17 /usr/local/nagios/var/spool/checkresults


one more thing, maximum how many ports bandwidth we can monitor in nagios xi?

Those permissions are correct, so we need to make sure we don't have a user expired or something

[root@EMSNagios1 ~]# chage -l nagios
Last password change : Aug 14, 2012
Password expires : never
Password inactive : never
Account expires : never
Minimum number of days between password change : 0
Maximum number of days between password change : 99999
Number of days of warning before password expires : 7

[root@EMSNagios1 ~]# cat /etc/group|grep nag
nagios505:nagios,apache
nagcmd506:nagios,apache

[root@EMSNagios1 ~]# sestatus
SELinux status: disabled

one more thing, maximum how many ports bandwidth we can monitor in nagios xi? please suggest

Did you add additional memory to the server since the memory problem?

wiproltdwiv wrote:one more thing, maximum how many ports bandwidth we can monitor in nagios xi? please suggest

This depends on many factors including system resources, network speed, check frequency etc.. With powerful optimized systems we have seen well over 10000 services (could be switch ports) monitored on 5 minute intervals