[ZBX-17192] SNMP traps in RHEL8/CentOS 8 - missing & removed "net-snmp-perl" package Created: 2020 Jan 17 Updated: 2024 May 16 Resolved: 2021 Jul 01 |
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| Status: | Closed |
| Project: | ZABBIX BUGS AND ISSUES |
| Component/s: | Documentation (D), Packages (C) |
| Affects Version/s: | 4.0.16, 4.4.4 |
| Fix Version/s: | 5.4 (plan) |
| Type: | Incident report | Priority: | Blocker |
| Reporter: | Oleksii Zagorskyi | Assignee: | Jurijs Klopovskis |
| Resolution: | Won't fix | Votes: | 26 |
| Labels: | rhel8, snmptraps | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Attachments: |
image-2020-08-10-14-58-12-099.png
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| Issue Links: |
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| Sprint: | Sprint 70 (Nov 2020), Sprint 71 (Dec 2020), Sprint 72 (Jan 2021), Sprint 73 (Feb 2021), Sprint 74 (Mar 2021), Sprint 75 (Apr 2021), Sprint 76 (May 2021), Sprint 77 (Jun 2021), Sprint 78 (Jul 2021) | ||||||||||||||||
| Description |
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Additionally to a Package "net-snmp-perl" has been removed as of RH8/CentOS8: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html-single/considerations_in_adopting_rhel_8/index#removed-packages_changes-to-packages The package is needed to collection of SNMP traps. Mentioned for example in this tutorial: https://blog.zabbix.com/snmp-traps-in-zabbix/
There is some unofficial replacement: https://centos.pkgs.org/8/okey-x86_64/net-snmp-perl-5.8-7.el8.2.x86_64.rpm.html I tried to manually download and install the RPM file, but it failed because of dependencies, which I could not resolve quickly and easily.
FUI: If configure /etc/snmp/snmptrapd.conf by adding zabbix perl trap handler and restart the daemon, it will start successfully, but in syslog you will get these messages: Dec 8 13:59:37 centos8 systemd[1]: Starting Simple Network Management Protocol (SNMP) Trap Daemon.... Dec 8 13:59:37 centos8 snmptrapd[3585]: Can't open perl script "/usr/share/snmp/snmp_perl_trapd.pl": No such file or directory Dec 8 13:59:37 centos8 snmptrapd[3585]: embedded perl support failed to initialize (perl_parse(/usr/share/snmp/snmp_perl_trapd.pl) returned 2) Dec 8 13:59:37 centos8 snmptrapd[3585]: NET-SNMP version 5.8 Dec 8 13:59:37 centos8 systemd[1]: Started Simple Network Management Protocol (SNMP) Trap Daemon.. Don't be confused by /usr/share/snmp/snmp_perl_trapd.pl path. This is attempt of initialization of perl engine, as we added own handler. Solution should be found and documented. |
| Comments |
| Comment by Hexdump [ 2020 Apr 16 ] |
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Did you tried to install the package with cpan ? # cpan i Net::SNMP I do not have access to my centos8 before monday. |
| Comment by Jurijs Klopovskis [ 2020 Apr 21 ] |
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If you choose to use 3rd party repo.okay.com.mx, then do not install net-snmp-perl package directly. Do as follows. rpm -Uvh http://repo.okay.com.mx/centos/8/x86_64/release/okay-release-1-3.el8.noarch.rpm dnf clean all dnf install net-snmp-perl Tested on a clean centos-8 system. In my opinion the best solution is to go with https://support.zabbix.com/browse/ZBXNEXT-5703. |
| Comment by patrik uytterhoeven [ 2020 Aug 04 ] |
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is there no official fix for this yet ? i cant imagine Zabbix SIA not having 1 customer under support with RHEL 8 and having SNMP Traps ?? ALSO LTS better tested ..... the way i see it Zabbix 5 is broken atm and not production ready unless you are willing to stay on RHEL 7 |
| Comment by Adam Leggo [ 2020 Aug 04 ] |
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You can find the package in the centos 8 AppStream packages. http://mirror.centos.org/centos/8-stream/AppStream/x86_64/os/Packages/ |
| Comment by patrik uytterhoeven [ 2020 Aug 04 ] |
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ok good to see that it was added is the Zabbix perl script working bc this was not the case with the okey package ? |
| Comment by patrik uytterhoeven [ 2020 Oct 27 ] |
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it seems to be in epel these days |
| Comment by Dimitri Bellini [ 2020 Oct 27 ] |
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I came here yesterday because i reach the same situation... no net-snmp-perl but i have solved because is coming on EPEL Since 2 years ago we start to prefer the "perl-way" because on RHEL 6/7/8.x the SNMPTT package is not provided and we need to compile it... but on Zabbix documentation is still suggested it as high performance solution. If SNMPTT is the best solution could be possible to have an official Zabbix RPM for RHEL/Centos from Zabbix? Thanks so much
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| Comment by Brian van Baekel [ 2020 Oct 27 ] |
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@Dimitri Bellini: That's exactly why we've created our own handler(s), a lot of customers do not allow things from EPEL. https://blog.zabbix.com/parsing-snmp-traps-with-python-or-bash-a-net-snmp-perl-alternative/11577/ Not the most elegant integration, but it works....
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| Comment by Dimitri Bellini [ 2020 Oct 27 ] |
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Hi Brian, thanks so much! I never saw the blog posted, very useful information and workaround! Thanks so much |
| Comment by patrik uytterhoeven [ 2020 Oct 29 ] |
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Hey Dimitri or anyone else was wondering wat the impact if on the speed of the script moving away from perl to bash or python also is it working out of the box ? |
| Comment by Dimitri Bellini [ 2020 Oct 29 ] |
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Hi Patrik, i never tested the python/bash solution at the moment.. I would like but i'm in lack of time I have you made some test? |
| Comment by patrik uytterhoeven [ 2020 Oct 29 ] |
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ah ok thought you had tested it i just found out btw that for the perl-Net-SNMP package to intall you need to enalble the PowerTools first
dnf config-manager --set-enabled PowerTools
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| Comment by Dimitri Bellini [ 2020 Oct 29 ] |
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@Patrik ok thanks for the tip! |
| Comment by Brian van Baekel [ 2020 Oct 30 ] |
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I'm a huge fan of the python integration (well, made it myself, would be crazy if i said it was sh*t). Tested the python integration with 4-5 concurrent for loops (without any delays built in) pushing in traps to be parsed; flawless.
The bash integration works, but not tested to see how far performance stretches... |
| Comment by Jurijs Klopovskis [ 2020 Dec 02 ] |
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Apparently net-snmp-perl has been added in RHEL 8.3, according to https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html-single/considerations_in_adopting_rhel_8/index#new-packages-added-in-RHEL-8-minor-releases_changes-to-packages |
| Comment by Edgar Akhmetshin [ 2020 Dec 08 ] |
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https://www.mail-archive.com/[email protected]/msg11827.html $ cat /etc/centos-release CentOS Linux release 8.3.2011 $ sudo dnf -y install centos-release-stream $ sudo dnf makecache $ sudo dnf -y install net-snmp net-snmp-perl perl-Net-SNMP |
| Comment by Sub2.13 [ 2020 Dec 14 ] |
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Be careful with the suggested solution "centos-release-stream". Your distribution will be moved from CentOS to CentOS Stream. It's a major change. In a production environnement, you should thing about it twice .
# dnf install centos-release-stream
Last metadata expiration check: 0:40:04 ago on Mon 14 Dec 2020 11:20:49 AM CET.
Dependencies resolved.
==================================================================================================================================================
Package Architecture Version Repository Size
==================================================================================================================================================
Installing:
centos-release-stream x86_64 8.1-1.1911.0.7.el8 extras 11 k
Transaction Summary
==================================================================================================================================================
Install 1 Package
Total download size: 11 k
Installed size: 6.6 k
Is this ok [y/N]: y
Downloading Packages:
centos-release-stream-8.1-1.1911.0.7.el8.x86_64.rpm 18 kB/s | 11 kB 00:00
--------------------------------------------------------------------------------------------------------------------------------------------------
Total 12 kB/s | 11 kB 00:00
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Preparing : 1/1
Installing : centos-release-stream-8.1-1.1911.0.7.el8.x86_64 1/1
Verifying : centos-release-stream-8.1-1.1911.0.7.el8.x86_64 1/1
Installed:
centos-release-stream-8.1-1.1911.0.7.el8.x86_64
Complete!
# more /etc/centos-release CentOS Linux release 8.3.2011
# dnf update
Last metadata expiration check: 0:04:10 ago on Mon 14 Dec 2020 12:02:06 PM CET.
Dependencies resolved.
==================================================================================================================================================
Package Architecture Version Repository Size
==================================================================================================================================================
Installing:
centos-stream-release noarch 8.4-1.el8 Stream-BaseOS 21 k
replacing centos-linux-release.noarch 8.3-1.2011.el8
replacing centos-release-stream.x86_64 8.1-1.1911.0.7.el8
...
About Okay repo solution, I've tried it as well. If you use the net-snmp-perl package from this repo, you will have several dependencies conflicts afterward because the version is available on this repo is too old to respect dependencies with others packages from official repo. dnf install net-snmp-perl
Extra OKay Packages for Enterprise Linux - x86_64 8.1 kB/s | 2.9 kB 00:00
Dependencies resolved.
=====================================================================================================================================================================================================
Package Architecture Version Repository Size
=====================================================================================================================================================================================================
Installing:
net-snmp-perl x86_64 1:5.8-12.el8.1 okay 355 k
Installing dependencies:
perl-JSON noarch 2.97.001-2.el8 appstream 96 k
perl-Mail-Sender noarch 1:0.903-7.el8 epel 56 k
Downgrading:
net-snmp x86_64 1:5.8-12.el8.1 okay 352 k
net-snmp-agent-libs x86_64 1:5.8-12.el8.1 okay 750 k
net-snmp-libs x86_64 1:5.8-12.el8.1 okay 821 k
net-snmp-utils x86_64 1:5.8-12.el8.1 okay 238 k
Transaction Summary
=====================================================================================================================================================================================================
Install 3 Packages
Downgrade 4 Packages
Consequence, you have several dependency issues afterward: # dnf update Last metadata expiration check: 0:03:22 ago on Mon 14 Dec 2020 11:31:10 AM CET. Error: Problem 1: libnghttp2-1.33.0-3.el8_2.1.i686 has inferior architecture - cannot install both libnghttp2-1.39.2-1.el8.x86_64 and libnghttp2-1.33.0-3.el8_2.1.x86_64 - cannot install the best update candidate for package libnghttp2-1.33.0-3.el8_2.1.i686 - cannot install the best update candidate for package libnghttp2-1.33.0-3.el8_2.1.x86_64 Problem 2: package net-snmp-perl-1:5.8-12.el8.1.x86_64 requires net-snmp-agent-libs(x86-64) = 1:5.8-12.el8.1, but none of the providers can be in - cannot install both net-snmp-agent-libs-1:5.8-17.el8.x86_64 and net-snmp-agent-libs-1:5.8-12.el8.1.x86_64 - cannot install both net-snmp-agent-libs-1:5.8-12.el8.1.x86_64 and net-snmp-agent-libs-1:5.8-17.el8.x86_64 - cannot install the best update candidate for package net-snmp-perl-1:5.8-12.el8.1.x86_64 - cannot install the best update candidate for package net-snmp-agent-libs-1:5.8-12.el8.1.x86_64 Problem 3: problem with installed package net-snmp-perl-1:5.8-12.el8.1.x86_64 - package net-snmp-perl-1:5.8-12.el8.1.x86_64 requires net-snmp-libs(x86-64) = 1:5.8-12.el8.1, but none of the providers can be installed - cannot install both net-snmp-libs-1:5.8-17.el8.x86_64 and net-snmp-libs-1:5.8-12.el8.1.x86_64 - cannot install both net-snmp-libs-1:5.8-12.el8.1.x86_64 and net-snmp-libs-1:5.8-17.el8.x86_64 - cannot install the best update candidate for package net-snmp-libs-1:5.8-12.el8.1.x86_64 (try to add '--allowerasing' to command line to replace conflicting packages or '--skip-broken' to skip uninstallable packages or '--nobest' to us Again, you should to measure the consequence of this installation. From my point-of-view, there is no acceptable solution in a production environnement Any help will be welcomed. |
| Comment by Edgar Akhmetshin [ 2021 Jun 30 ] |
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Package is available in RHEL8.3/Oracle Linux 8.3/VxLinux/AlmaLinux/RockyLinux and above. 'Classic' CentOS 8 support ends in 2021: https://wiki.centos.org/About/Product. Problem is not actual for upstream systems: [edgar@ kraken]$ sudo dnf info net-snmp-perl Updating Subscription Management repositories. Last metadata expiration check: 0:55:19 ago on Thu 01 Jul 2021 06:37:49 AM UTC. Available Packages Name : net-snmp-perl Epoch : 1 Version : 5.8 Release : 20.el8 Architecture : x86_64 Size : 358 k Source : net-snmp-5.8-20.el8.src.rpm Repository : rhel-8-for-x86_64-appstream-rpms Summary : The perl NET-SNMP module and the mib2c tool URL : http://net-snmp.sourceforge.net/ License : BSD Description : The net-snmp-perl package contains the perl files to use SNMP from within : Perl. : : Install the net-snmp-perl package, if you want to use mib2c or SNMP : with perl. [edgar@ kraken]$ head -n 5 /etc/os-release NAME="Red Hat Enterprise Linux" VERSION="8.4 (Ootpa)" ID="rhel" ID_LIKE="fedora" VERSION_ID="8.4"
[edgar@ kraken]$ sudo subscription-manager repos --list-enabled
+----------------------------------------------------------+
Available Repositories in /etc/yum.repos.d/redhat.repo
+----------------------------------------------------------+
Repo ID: ansible-2.9-for-rhel-8-x86_64-rpms
Repo Name: Red Hat Ansible Engine 2.9 for RHEL 8 x86_64 (RPMs)
Repo URL: https://cdn.redhat.com/content/dist/layered/rhel8/x86_64/ansible/2.9/os
Enabled: 1
Repo ID: codeready-builder-for-rhel-8-x86_64-rpms
Repo Name: Red Hat CodeReady Linux Builder for RHEL 8 x86_64 (RPMs)
Repo URL: https://cdn.redhat.com/content/dist/rhel8/$releasever/x86_64/codeready-builder/os
Enabled: 1
Repo ID: rhel-8-for-x86_64-baseos-rpms
Repo Name: Red Hat Enterprise Linux 8 for x86_64 - BaseOS (RPMs)
Repo URL: https://cdn.redhat.com/content/dist/rhel8/$releasever/x86_64/baseos/os
Enabled: 1
Repo ID: rhel-8-for-x86_64-appstream-rpms
Repo Name: Red Hat Enterprise Linux 8 for x86_64 - AppStream (RPMs)
Repo URL: https://cdn.redhat.com/content/dist/rhel8/$releasever/x86_64/appstream/os
Enabled: 1
CentOS 8.0-8.2 can use Python or Bash handlers, like described here: |
| Comment by Jurijs Klopovskis [ 2021 Jul 01 ] |
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I'm closing the issue as WON'T FIX, due to the death of CentOS 8. |
