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  1. ZABBIX BUGS AND ISSUES
  2. ZBX-24442

zabbix agent overwhelms its log file about virtual network interfaces

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    • Icon: Problem report Problem report
    • Resolution: Unresolved
    • Icon: Major Major
    • None
    • 5.0.42, 6.0.29, 6.4.14, 7.0.0beta3
    • Templates (T)
    • None

      Steps to reproduce:

      1. install zabbix agent2 on a Kubernetes node
      2. bind it to the linux or linux_active templates
      3. watch the zabbix_agent2.log file

      Result:
      There are a bazillion of log file entries about virtual network interfaces, eg

      2024/05/05 22:56:16.002886 check 'vfs.file.contents["/sys/class/net/cali263e45db85f/operstate"]' is not supported: Cannot obtain file /sys/class/net/cali263e45db85f/operstate information: stat /sys/class/net/cali263e45db85f/operstate: no such file or directory
2024/05/05 22:56:16.002942 check 'vfs.file.contents["/sys/class/net/cali9b49f472fc8/operstate"]' is not supported: Cannot obtain file /sys/class/net/cali9b49f472fc8/operstate information: stat /sys/class/net/cali9b49f472fc8/operstate: no such file or directory
2024/05/05 22:56:16.002989 check 'vfs.file.contents["/sys/class/net/calia6097d2c80f/speed"]' is not supported: Cannot obtain file /sys/class/net/calia6097d2c80f/speed information: stat /sys/class/net/calia6097d2c80f/speed: no such file or directory
2024/05/05 22:56:16.003008 check 'vfs.file.contents["/sys/class/net/calid44fc087a99/operstate"]' is not supported: Cannot obtain file /sys/class/net/calid44fc087a99/operstate information: stat /sys/class/net/calid44fc087a99/operstate: no such file or directory
2024/05/05 22:56:16.003023 check 'net.if.in["calibb3787a49e3"]' is not supported: Cannot find information for this network interface in /proc/net/dev.
2024/05/05 22:56:16.003105 check 'net.if.out["cali09c552872af",errors]' is not supported: Cannot find information for this network interface in /proc/net/dev.
2024/05/05 22:56:16.003164 check 'net.if.out["cali562d8cfea99",errors]' is not supported: Cannot find information for this network interface in /proc/net/dev.
2024/05/05 22:56:16.003236 check 'net.if.in["cali24dee70f6df"]' is not supported: Cannot find information for this network interface in /proc/net/dev.
2024/05/05 22:56:16.003313 check 'net.if.in["cali9b49f472fc8",dropped]' is not supported: Cannot find information for this network interface in /proc/net/dev.
2024/05/05 22:56:16.003372 check 'net.if.in["cali13a95a740a6"]' is not supported: Cannot find information for this network interface in /proc/net/dev.
2024/05/05 22:56:16.003404 check 'net.if.out["cali24e9b8dc3bc"]' is not supported: Cannot find information for this network interface in /proc/net/dev.
2024/05/05 22:56:16.003430 check 'net.if.out["cali71e218151cc"]' is not supported: Cannot find information for this network interface in /proc/net/dev.
2024/05/05 22:56:16.003461 check 'net.if.out["cali17b21183ef7",errors]' is not supported: Cannot find information for this network interface in /proc/net/dev.
2024/05/05 22:56:16.003511 check 'net.if.out["cali13ef1ddff12",errors]' is not supported: Cannot find information for this network interface in /proc/net/dev.
2024/05/05 22:56:16.003550 check 'net.if.in["cali8bd06e568d8",dropped]' is not supported: Cannot find information for this network interface in /proc/net/dev.
2024/05/05 22:56:17.001851 check 'vfs.file.contents["/sys/class/net/calied69bb58c1d/operstate"]' is not supported: Cannot obtain file /sys/class/net/calied69bb58c1d/operstate information: stat /sys/class/net/calied69bb58c1d/operstate: no such file or directory
2024/05/05 22:56:17.001984 check 'vfs.file.contents["/sys/class/net/cali6cd78d957a7/operstate"]' is not supported: Cannot obtain file /sys/class/net/cali6cd78d957a7/operstate information: stat /sys/class/net/cali6cd78d957a7/operstate: no such file or directory
2024/05/05 22:56:17.002250 check 'vfs.file.contents["/sys/class/net/cali75b1aacedfc/operstate"]' is not supported: Cannot obtain file /sys/class/net/cali75b1aacedfc/operstate information: stat /sys/class/net/cali75b1aacedfc/operstate: no such file or directory
2024/05/05 22:56:17.002301 check 'vfs.file.contents["/sys/class/net/cali6f0f4527cc9/operstate"]' is not supported: Cannot obtain file /sys/class/net/cali6f0f4527cc9/operstate information: stat /sys/class/net/cali6f0f4527cc9/operstate: no such file or directory

      Expected:
      Zabbix network device discovery should ignore virtual network interfaces of the Kubernetes world (eg Calico) on the nodes, similar to Docker installations. I know this can be configured in the macros, but using the network interface name this is too error-prone. Virtual network interfaces used just within a container, but not on the node have to be ignored altogether.

      Zabbix server and agent is version 6.4. The linux and linux_active templates have been updated from git.

            zit Zabbix Integration Team
            harri Harri
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              Created:
              Updated: