check_snmp_printer stopped working after Ubuntu 16.04 upgrad

[lmcadams3]

My 4.2.4 Nagios implementation on Ubuntu 16.04 was working without issues. When I updated Ubuntu to 18.04, I had issues with the check_snmp_printer plugin (https://exchange.nagios.org/directory/P ... ck/details). Here is the entry in my command.cfg

#'check_snmp_printer' command definition
define command{
command_name check_snmp_printer
command_line $USER1$/check_snmp_printer -H $HOSTADDRESS$ -C $ARG1$ -t $ARG2$
}

I can run this command on the server
./check_snmp_printer -H x.x.x.x -x public -t "CONSUM TEST"
Consumables you may monitor:
Black Toner Cartridge
Drum Unit

But when I try to check the CONSUM, I receive the error:
./check_snmp_printer -H x.x.x.x -x public -t "CONSUM Black Toner Cartridge"
./check_snmp_printer: line 466: [: No Such Instance currently exists at this OID: integer expression expected
./check_snmp_printer: line 486: let: CURRENT_CAPACITY=No Such Instance currently exists at this OID * 100 / No Such Instance currently exists at this OID: syntax error in expression (error token is "Such Instance currently exists at this OID * 100 / No Such Instance currently exists at this OID")
No Such Instance currently exists at this OID is at 0% - CRITICAL!,| 'No Such Instance currently exists at this OID'=0;20;5

This is the same error that occurs on the web interface as well.

Any thoughts or suggestions? TIA

[cdienger]

Running the script with the bash debug option may give us some clues:

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bash -x ./check_snmp_printer -H x.x.x.x -x public -t "CONSUM TEST"

[tgriep]

In Ubuntu 18, not all of the SNMP MIB files are installed on the server.

They have to be manually installed so run this as root to do so.

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apt-get install snmp-mibs-downloader

Then run this to download and install them.

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download-mibs

To have the new MIBs recognized by net-snmp, edit /etc/snmp/snmp.conf file as follows:

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mibs +ALL

Then, test the plugin to see if it works.

[lmcadams3]

I followed the instructions to add the MIBs and made the change to the snmp.conf file and then received the following error:

Bad operator (INTEGER): At line 73 in /usr/share/snmp/mibs/ietf/SNMPv2-PDU

I followed these instructions https://serverfault.com/questions/93611 ... or-in-mibs and deleted my SNMPv2-PDU file. The plugin runs without errors, but does not return any results. Here are the bash -x results:

+ PRIVACYPROTOCOL=public
+ shift
+ shift
+ test -n -t
+ case "$1" in
++ cut -d ' ' -f1
++ echo 'CONSUM Black Toner Cartridge'
+ CHECK_TYPE=CONSUM
++ cut -d ' ' -f2-
++ echo 'CONSUM Black Toner Cartridge'
+ PARAMETER='Black Toner Cartridge'
+ shift
+ shift
+ test -n ''
+ '[' '!' -z CONSUM ']'
+ case "$CHECK_TYPE" in
+ CheckConsumables 'Black Toner Cartridge'
+ CONSUMS_STATE=0
+ HEX_ID=0
+ CURRENT_STATUS=0
+ HEX_MARKER=
+ ASCII_MARKER=
+ MARKERS_MATCHED=
+ case "$1" in
++ walk_snmp 1.3.6.1.2.1.43.11.1.1.6.1 false
++ '[' false = true ']'
++ OUTPUT_OPTIONS=-Oa
++ [[ 2c = 3 ]]
+++ snmpwalk -v 2c -Oa -c public 10.7.225.121 1.3.6.1.2.1.43.11.1.1.6.1
++ RESULT_TEXT='Printer-MIB::prtMarkerSuppliesDescription.1.1 = STRING: "Black Toner Cartridge"
Printer-MIB::prtMarkerSuppliesDescription.1.2 = STRING: "Drum Unit"'
++ RESULT_CODE=0
++ [[ 0 -ne 0 ]]
++ '[' false = true ']'
++ echo 'Printer-MIB::prtMarkerSuppliesDescription.1.1 = STRING: "Black Toner Cartridge"
Printer-MIB::prtMarkerSuppliesDescription.1.2 = STRING: "Drum Unit"'
+ ALL_MARKERS='Printer-MIB::prtMarkerSuppliesDescription.1.1 = STRING: "Black Toner Cartridge"
Printer-MIB::prtMarkerSuppliesDescription.1.2 = STRING: "Drum Unit"'
+ check_snmp_error 0 'Printer-MIB::prtMarkerSuppliesDescription.1.1 = STRING: "Black Toner Cartridge"
Printer-MIB::prtMarkerSuppliesDescription.1.2 = STRING: "Drum Unit"'
+ [[ 0 -ne 0 ]]
++ egrep -i 'Black Toner Cartridge'
++ echo 'Printer-MIB::prtMarkerSuppliesDescription.1.1 = STRING: "Black Toner Cartridge"
Printer-MIB::prtMarkerSuppliesDescription.1.2 = STRING: "Drum Unit"'
+ MARKERS_MATCHED='Printer-MIB::prtMarkerSuppliesDescription.1.1 = STRING: "Black Toner Cartridge"'
+ '[' -z 'Printer-MIB::prtMarkerSuppliesDescription.1.1 = STRING: "Black Toner Cartridge"' ']'
++ awk -F= '{print $1}'
++ awk -F. '{print $8}'
++ echo 'Printer-MIB::prtMarkerSuppliesDescription.1.1 = STRING: "Black Toner Cartridge"'
+ return 0
+ STATE=0
+ '[' '' == '' ']'
+ echo ''

+ exit 0

[tgriep]

Can you upload the plugin that you are running to the post so we can view it?
The output does not seem to match what I see so I would like to test with the actual plugin you are using.

[lmiltchev]

I assume you are using check_snmp_printer Version 4.0, which can be downloaded from here:
https://exchange.nagios.org/directory/P ... ck/details

I may be wrong though... As @tgriep mentioned, it's probably the best to know what is the exact plugin that you are using, and test it in-house.

Having said that, I tested the plugin above on Ubuntu 18, and it worked for me. See below:

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root@ubuntu18x64:/usr/local/nagios/libexec# uname -a
Linux ubuntu18x64 4.15.0-46-generic #49-Ubuntu SMP Wed Feb 6 09:33:07 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
root@ubuntu18x64:/usr/local/nagios/libexec# cat /etc/*release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=18.04
DISTRIB_CODENAME=bionic
DISTRIB_DESCRIPTION="Ubuntu 18.04.2 LTS"
NAME="Ubuntu"
VERSION="18.04.2 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04.2 LTS"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic
root@ubuntu18x64:/usr/local/nagios/libexec# /usr/local/nagios/libexec/check_snmp_printer -H x.x.x.x -v 1 -t "CONSUM TEST" -C public
Consumables you may monitor:
Black Cartridge HP CE278A
root@ubuntu18x64:/usr/local/nagios/libexec# /usr/local/nagios/libexec/check_snmp_printer -H x.x.x.x -v 1 -t "CONSUMX Black Cartridge HP CE278A" -C public -w 20 -c 10
Black Cartridge HP CE278A is at 10% - CRITICAL!,| 'Black Cartridge HP CE278A'=10;20;10

[lmcadams3]

Yes, I am using the version 4.0 of the check_snmp_printer. I noticed that your reply uses CONSUMX instead of CONSUM and when I changed my code worked! I know this was working on Ubuntu version 14....

I appreciate your help! Thank you!

[lmiltchev]

I am glad I could help! Let us know if it is OK to close this topic. Thank you!

[lmiltchev]

I am closing the topic as requested by the user via PM.