2014R1.0RC1 Initial reaction and question(s)

[b2m]

With your modification in cfgmaker Nagios can finally read the interface data of the switch. Anyway, it cannot poll data from it.

I guess there has to be something else done with the scripts executing the checks?

It reads like that:

check_xi_service_mrtgtraf!192.168.120.253_10123.rrd!50000,50000!80000,80000!K

check_xi_service_ifoperstatusnag!10123!-v 3 -u manager -A xxx -X xxx -l authPriv

[slansing]

Bear in mind that it does take some time for those RRD's to populate, you might have to wait upwards of 30 minutes in extreme cases, before they have the necessary data to be formed. Was this the case? Are they working now? Has the error changed?

[b2m]

Was this the case? Are they working now? Has the error changed?

No.

As you see, the interface state doesn't work eather.

This is written to root's mail:

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From: [email protected] (Cron Daemon)
To: [email protected]
Subject: Cron <root@localhost> LANG=C LC_ALL=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg --lock-file /var/lock/mrtg/mrtg_l --confcache-file /var/lib/mrtg/mrtg.ok
Content-Type: text/plain; charset=UTF-8
Auto-Submitted: auto-generated
X-Cron-Env: <SHELL=/bin/sh>
X-Cron-Env: <HOME=/root>
X-Cron-Env: <PATH=/usr/bin:/bin>
X-Cron-Env: <LOGNAME=root>
X-Cron-Env: <USER=root>
Message-Id: <[email protected]>
Date: Sat, 26 Apr 2014 14:40:03 +0200 (CEST)

Use of uninitialized value $dir in concatenation (.) or string at /usr/bin/mrtg line 2658.
Use of uninitialized value $dir in concatenation (.) or string at /usr/bin/mrtg line 2676.
Use of uninitialized value $dir in concatenation (.) or string at /usr/bin/mrtg line 2692.
ERROR: "WorkDir" not specified in mrtg config file

[slansing]

Looks like there is a problem with your mrtg.cfg file, what is the output of the following:

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cat /etc/mrtg/mrtg.cfg

[b2m]

mrtg.conf starts like this:

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#### ADDED BY NAGIOSXI (USER: nagiosadmin, DATE: 2014-04-26 14:19:53) ####
# Created by
# /usr/bin/cfgmaker --show-op-down --noreversedns --zero-speed 100000000 --enablesnmpv3 --snmp-options=:::::3 --username=manager --authprotocol=sha --authpassword=df3Uvo0QfaA1pP3n --privprotocol=aescfb128 --privpassword=1qv6hJ3C9Q1bvzR8 --contextengineid=0 192.168.120.253


### Global Config Options

#  for UNIX
# WorkDir: /home/http/mrtg

#  or for NT
# WorkDir: c:\mrtgdata

### Global Defaults

#  to get bits instead of bytes and graphs growing to the right
# Options[_]: growright, bits

EnableIPv6: no

I didn't change anything here. What about the state check? This is done via normal SNMP queries, right? What can be the problem here?

[sreinhardt]

The error that slansing was noticing is specific to mrtg configuration, not the checks or snmpgets themselves. Could you post the lines that the errors are referencing?

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Use of uninitialized value $dir in concatenation (.) or string at /usr/bin/mrtg line 2658.
Use of uninitialized value $dir in concatenation (.) or string at /usr/bin/mrtg line 2676.
Use of uninitialized value $dir in concatenation (.) or string at /usr/bin/mrtg line 2692.

[b2m]

line 2568

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 if ( ! -r "$dir${main::SL}mrtg-l.png" and  open W, ">$dir${main::SL}mrtg-l.png" ){

line 2676

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if ( ! -r "$dir${main::SL}mrtg-m.png" and  open W, ">$dir${main::SL}mrtg-m.png" ){

line 2692

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if ( ! -r "$dir${main::SL}mrtg-r.png" and  open W, ">$dir${main::SL}mrtg-r.png" ){

Is $dir the variable for the work dir? How does a well-functioning mrtg.conf look like?

The error that slansing was noticing is specific to mrtg configuration, not the checks or snmpgets themselves

I know but the check of interface state doesn't work, either.

[tmcdonald]

Does your mrtg.cfg file have a "Include:" line in it? If not you will need to specify the "WorkDir:" directive. Mine says "WorkDior: /var/lib/mrtg". Looking at the source code this is one of three places where the $dir variable can be pulled from.

[b2m]

It works after I
a) upgraded to RC3
b) deleted everything related
c) ran the monitoring wizard again
d) added the following to mrtg.cfg which I got from mrtg.cfg.orig:

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HtmlDir: /var/www/mrtg
ImageDir: /var/www/mrtg
LogFormat: rrdtool
LogDir: /var/lib/mrtg
ThreshDir: /var/lib/mrtg
WorkDir: /var/lib/mrtg

Would you please tell me whether this is a general error that cfgmaker doesn't include the directories or if it's just on my system.

The second problem with the interface state checks. The wizards creates the following call of check_ifoperstatnag:

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[root@localhost libexec]# ./check_ifoperstatnag 10124 192.168.120.126 -v 3 -u manager -A xxx -X xxx -l authPriv
No log handling enabled - turning on stderr logging
snmpwalk: Authentication failure (incorrect password, community or key) (Sub-id not found: (top) -> ifOperStatus)
./check_ifoperstatnag: line 18: [: -eq: unary operator expected
./check_ifoperstatnag: line 21: [: -eq: unary operator expected
WARNING - No info is being retrieved

The check_ifoperstatnag plugin on my system looks like this:

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#!/bin/sh
#
# Check ifoperstatus() without calling the perl routine, this script uses
# snmpwalk to get the info.
#
# $1: Community string ; $2 Target address ; $3 Target interface
#
# by nAAs <[email protected]>

LIBEXEC=$(dirname $0)
. $LIBEXEC/utils.sh

iface=$1
shift

comm=$(snmpwalk $@ ifOperStatus.$iface | awk -F: '{print $4}' | awk -F\( '{print $2}' | awk -F\) '{print $1}')

if [ $comm -eq 1 ]; then
        echo "OK - Interface $iface is up."
        exit $STATE_OK
        elif [ $comm -eq 2 ]; then
                echo "CRITICAL - Interface $iface is down"
                exit $STATE_CRITICAL
        else
                echo "WARNING - No info is being retrieved"
                exit $STATE_WARNING
fi

As you see it looks like there is no SNMPv3 functionality implemented. Do I have an old version of this script or what is my problem here?

Thanks.

[scottwilkerson]

Actually, I believe there may be a bug in the command definition

Can you run the following?

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./check_ifoperstatnag 10124 -v 3 -u manager -A xxx -X xxx -l authPriv 192.168.120.126

either way, we will be testing this internally and get it sorted BEFORE the full 2014 Release