rrd file does not exist

[nms]

To whom it may concern,

We have upgraded our Nagios XI to 5.6.7. After the upgrade, when we create a new bandwidth utilization monitor using the configuration wizard, it states that the the rrd file does not exist. Even when we try to add a bandwidth utilization monitor (using configuration wizard) to an existing router/switch, it still returns as rrd file does not exist.

Can you kindly give us some indicators as to which could be the issue?

[scottwilkerson]

If you just configured this, it is normal as it takes time for MRTG to do the first polling, however if you still see the message after 15 minutes that would be abnormal.

[nms]

Hi Scott,

Indeed, however, we raised this ticket since the issue remains there.
Even though you try to create the rrd by hand, the mrtg does not generate anything, thus the BW measurement remains a zero.

We noticed this happening after the latest upgrade (5.6.7) either when creating a network device from scratch and even when adding new interfaces to an existing device.

Unfortunately, this is a show stopper for us, since we cannot continue to create any bw measurements.

Attached is our profile.
Attached is also MRTG check with command:

Code: Select all

LANG=C LC_ALL=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg .check

Thanks in advance

[scottwilkerson]

Can you show the output of the following

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ls -al /var/lib/mrtg/mrtg*
ls -ld /var/lib/mrtg

[nms]

Hi Scott,

[root@am1-sha-nagios2-p ~]# ls -al /var/lib/mrtg/mrtg*
-rwxrwxr-x 1 apache nagios 0 Dec 3 14:38 /var/lib/mrtg/mrtg.ok
[root@am1-sha-nagios2-p ~]#

[root@am1-sha-nagios2-p ~]# ls -ld /var/lib/mrtg
drwxrwxr-x 3 apache nagios 348160 Dec 3 14:38 /var/lib/mrtg

Thanks

[scottwilkerson]

Those look ok, how about the following

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grep mrtg /var/log/cron|tail -10

[nms]

Hi,

Code: Select all

[root@am1-sha-nagios2-p log]# grep mrtg cron|tail -10
Dec  3 14:30:01 am1-sha-nagios2-p CROND[22091]: (root) CMD (LANG=C LC_ALL=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg --lock-file /var/lib/mrtg/mrtg.lock --confcache-file /var/lib/mrtg/mrtg.ok --user=nagios --group=nagios)
Dec  3 14:35:01 am1-sha-nagios2-p CROND[9654]: (root) CMD (LANG=C LC_ALL=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg --lock-file /var/lib/mrtg/mrtg.lock --confcache-file /var/lib/mrtg/mrtg.ok --user=nagios --group=nagios)
Dec  3 14:40:01 am1-sha-nagios2-p CROND[30843]: (root) CMD (LANG=C LC_ALL=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg --lock-file /var/lib/mrtg/mrtg.lock --confcache-file /var/lib/mrtg/mrtg.ok --user=nagios --group=nagios)
Dec  3 14:45:01 am1-sha-nagios2-p CROND[21584]: (root) CMD (LANG=C LC_ALL=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg --lock-file /var/lib/mrtg/mrtg.lock --confcache-file /var/lib/mrtg/mrtg.ok --user=nagios --group=nagios)
Dec  3 14:50:01 am1-sha-nagios2-p CROND[9719]: (root) CMD (LANG=C LC_ALL=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg --lock-file /var/lib/mrtg/mrtg.lock --confcache-file /var/lib/mrtg/mrtg.ok --user=nagios --group=nagios)
Dec  3 14:55:01 am1-sha-nagios2-p CROND[30655]: (root) CMD (LANG=C LC_ALL=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg --lock-file /var/lib/mrtg/mrtg.lock --confcache-file /var/lib/mrtg/mrtg.ok --user=nagios --group=nagios)
Dec  3 15:00:01 am1-sha-nagios2-p CROND[19996]: (root) CMD (LANG=C LC_ALL=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg --lock-file /var/lib/mrtg/mrtg.lock --confcache-file /var/lib/mrtg/mrtg.ok --user=nagios --group=nagios)
Dec  3 15:05:01 am1-sha-nagios2-p CROND[8258]: (root) CMD (LANG=C LC_ALL=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg --lock-file /var/lib/mrtg/mrtg.lock --confcache-file /var/lib/mrtg/mrtg.ok --user=nagios --group=nagios)
Dec  3 15:10:01 am1-sha-nagios2-p CROND[29010]: (root) CMD (LANG=C LC_ALL=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg --lock-file /var/lib/mrtg/mrtg.lock --confcache-file /var/lib/mrtg/mrtg.ok --user=nagios --group=nagios)
Dec  3 15:15:01 am1-sha-nagios2-p CROND[17490]: (root) CMD (LANG=C LC_ALL=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg --lock-file /var/lib/mrtg/mrtg.lock --confcache-file /var/lib/mrtg/mrtg.ok --user=nagios --group=nagios)

Rgds

[scottwilkerson]

It it just a specific host/IP that's not getting created?

Can you run the following and capture the output

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LANG=C LC_ALL=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg --lock-file /var/lib/mrtg/mrtg.lock --confcache-file /var/lib/mrtg/mrtg.ok --user=nagios --group=nagios

[nms]

Hi,

It it just a specific host/IP that's not getting created?

No, it doesn't seem to be the case. We did not try on multiple devices but it occurred on a new device and it happened also on existing devices having interfaces already being measured.

Note: Existing ones already running before upgrade work perfectly. Any new additions seem to have this issue.

Attached is the output for the MRTG check. I noticed some permission denied errors.

MRTG_Check.txt

[scottwilkerson]

Lets run the following to fix the permissions:

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chown apache:nagios -R /var/lib/mrtg
chmod ug+rwx -R /var/lib/mrtg