Upgraded nagios host o/s now swich traffic bandwidht is zero

[stebbo]

Hi All,

the other day I did a yum update on the Centos VM running nagios, and ever since my switch traffic monitoring is showing 0Mbps. This is occurring on the three separate switches that I'm monitoring via SNMP.

Nagios version 5.2.5

Centos version centos-release-6-8.el6.centos.12.3.x86_64

Profile attached.

Cheers,
Chris.

[rkennedy]

Do you have a log of what all was updated when you ran 'yum update'?

Looking at your profile, I noticed this -

Code: Select all

Jul 11 11:30:57 nagios5 nagios: SERVICE ALERT: sonar41;Port 8 Bandwidth;UNKNOWN;SOFT;2;/var/lib/mrtg/10.174.64.41_8.rrd does not exist.
Jul 11 11:31:08 nagios5 nagios: SERVICE ALERT: sonar41;Port 9 Bandwidth;UNKNOWN;SOFT;1;/var/lib/mrtg/10.174.64.41_9.rrd does not exist.
Jul 11 11:31:12 nagios5 nagios: SERVICE ALERT: sonar41;Port 10 Bandwidth;UNKNOWN;SOFT;4;/var/lib/mrtg/10.174.64.41_10.rrd does not exist.
Jul 11 11:31:52 nagios5 nagios: SERVICE ALERT: sonar41;Port 8 Bandwidth;UNKNOWN;SOFT;3;/var/lib/mrtg/10.174.64.41_8.rrd does not exist.
Jul 11 11:32:04 nagios5 nagios: SERVICE ALERT: sonar41;Port 9 Bandwidth;UNKNOWN;SOFT;2;/var/lib/mrtg/10.174.64.41_9.rrd does not exist.
Jul 11 11:32:11 nagios5 nagios: SERVICE ALERT: sonar41;Port 10 Bandwidth;UNKNOWN;HARD;5;/var/lib/mrtg/10.174.64.41_10.rrd does not exist.
Jul 11 11:32:52 nagios5 nagios: SERVICE ALERT: sonar41;Port 8 Bandwidth;UNKNOWN;SOFT;4;/var/lib/mrtg/10.174.64.41_8.rrd does not exist.
Jul 11 11:33:05 nagios5 nagios: SERVICE ALERT: sonar41;Port 9 Bandwidth;UNKNOWN;SOFT;3;/var/lib/mrtg/10.174.64.41_9.rrd does not exist.
Jul 11 11:33:51 nagios5 nagios: SERVICE ALERT: sonar41;Port 8 Bandwidth;UNKNOWN;HARD;5;/var/lib/mrtg/10.174.64.41_8.rrd does not exist.
Jul 11 11:34:04 nagios5 nagios: SERVICE ALERT: sonar41;Port 9 Bandwidth;UNKNOWN;SOFT;4;/var/lib/mrtg/10.174.64.41_9.rrd does not exist.
Jul 11 11:35:04 nagios5 nagios: SERVICE ALERT: sonar41;Port 9 Bandwidth;UNKNOWN;HARD;5;/var/lib/mrtg/10.174.64.41_9.rrd does not exist.

Is this one of the switches that is showing 0Mbps, or is this a newly added one? What is the full output of ls -la /var/lib/mrtg/?

[Elric667]

I am having the same problem with Traffic Bandwidth being Zero after the 5.2.9 upgrade Don't know if it was a Centos with MRTG issue or the latest update that caused it to Fail.

Also Have attached my Yum Update on the Box also.

[tgriep]

The problem in doing a yum upgrade, it actually downgrades the MRTG package to an older version that doesn't work with the new file format XI uses to generate the bandwidth data.
To upgrade it to the working version, follow this KB article.
https://support.nagios.com/kb/article.php?id=511

[Elric667]

This fixed the problem thank you very very much.

[stebbo]

Hi tgriep,

that fixed it thanks.

I did the update after reading this thread which indicated that doing a yum update was safe.
https://support.nagios.com/forum/viewto ... 16&t=39192

Is there some way to stop yum from updating the mrtg components, or should I just not do the updates?

Cheers,
Chris.

[tgriep]

The link below are some instructions I found that you can use to set excludes for certain packages.
http://www.tecmint.com/disable-certain- ... os-fedora/
You just have to edit the yum config files for that repo and add the "exclude= mrtg mrtg-libs" to the file.
Mrtg is usually part of the Base repo.

[stebbo]

Hi tgriep,

thanks for that. I'll look into that.

Cheers,
Chris.

[rkennedy]

Are we good to mark this thread as resolved?