Instana

Hi Pablo,

Did you check the firewall rules:
https://www.ibm.com/docs/en/instana-observability/current?topic=cluster-preparing#firewall-rules ?

Hi Bart, thanks for reply.

I was checked that and the firewall is disable. 
It's strange becasuse I tryed to install online and air-gapped and the error is the same, the k3s service restart in a ramdom time and the installation cancelled.

Could you install well in standard mode?

Hi Pablo,

If you are running RHEL 9.3, then you could be impacted by:
https://www.ibm.com/docs/en/instana-observability/current?topic=edition-troubleshooting-debugging#standard-edition-installation-on-rhel-93-fails

You would need to update iptables...

Hope this helps.

I  try to run Instana in Ubuntu 24.04 that is supported. 

https://www.ibm.com/docs/en/instana-observability/current?topic=cluster-system-requirements

There are plenty of ways to troubleshoot this (kubectl logs, kubectl get events, kubectl get pods, kubectl describe pod), but i would advise that you raise a support case to have this diagnosed by support:
https://www.ibm.com/mysupport/s/?language=en_US

After many installation attempts, the maximum I've managed to install is 17 pods. All are running, but the installer doesn't progress beyond that point.
The k3s service restarts and the installation doesn't completes.
When the k3s service restarts, the pods restart, but the installation doesn't complete.
I already have a case open, but it's running slowly, like every case I open.
I thought, maybe it's a simple issue and someone on the forum could help me resolve it.
Thanks Bart, I'll continue with support. When I resolve it, I'll let you know what it was.

Network interfaces might cause problems in some on-prem environments, especially if the servers are provisioned by VMware. Please review the checksum settings of the following interfaces:

ethtool --show-offload ens192 | grep tx-checksum
ethtool --show-offload cni0 | grep tx-checksum
ethtool --show-offload flannel.1 | grep tx-checksum

If they are enabled, please disable them and go with stanctl up again. 

sudo ethtool -K ens192 tx-checksumming off
sudo ethtool -K flannel.1 tx-checksumming off
sudo ethtool -K cni0 tx-checksumming off

Note: The cni0 and flannel.1 interfaces are created each time during the k3s setup process, so make sure checksum offloading is disabled properly during or immediately after setup.

** The commands provided are based on Rhel. If you encounter errors on Ubuntu, please find the appropriate Ubuntu equivalents, as offloading feature names or syntax might differ.

https://github.com/k3s-io/k3s/issues/5013

https://knowledge.broadcom.com/external/article/331419/using-nondefault-ports-for-vxlan-traffic.html

https://github.com/projectcalico/calico/issues/3145

Thanks Mertcan for the answer. I tried it, and the parameters were off.
Even so, it still doesn't work.
I tried installing it on RHEL 9 and it worked without problems. It's probably an Instana issue with Ubuntu 24, even though the documentation says it works.
In the meantime, I'll continue with the IBM support case.

Thanks