Hi.. I'm trying to install Instana Self-Hosted Standard Edtition last version on RHEL 9.4 (VM on Azure), but I got the next error:

Get "https://127.0.0.1:6443/apis/apps/v1/namespaces/instana-elasticsearch/statefulsets/elasticsearch-es-default": dial tcp 127.0.0.1:6443: connect: connection refused - error from a previous attempt: unexpected EOF

Any recomendation?

Regards

#Self-Hosted

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Carlos Americo Ojeda Medina
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Hi @Carlos Americo Ojeda Medina, 

Could you pls have check, whether you have enough storage.

Could be multiple reason, one could be the disk I/O limit on your mount space.

https://www.ibm.com/docs/en/instana-observability/1.0.300?topic=cluster-preparing

https://www.ibm.com/docs/en/instana-observability/1.0.300?topic=cluster-system-requirements ...Hope this helps...Thanks!

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Neha Ghongade
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Hello, 

I suggest to check the network rules first. Especially, these two might be hit the problem. 

all	Inbound	TCP/UDP	10.42.0.0/16 and 10.43.0.0/16	Subnets of the self-hosted Instana components
all	Inbound	TCP/UDP	Loopback	Open the ports to allow a VM to send and receive its own data packets.

 https://www.ibm.com/docs/en/instana-observability/1.0.300?topic=cluster-system-requirements#networking-requirements

Secondly, I encountered a similar connection issue between the pods while installing Std. Edt. Multinode on RHEL9 servers as well. The main problem was checksum settings on the server. When I disabled it, pods could communicate with each other. But in my case, the servers were provisioned by VMware. So I don't think this issue might happen on Cloud. But no harm in trying it.

https://github.com/k3s-io/k3s/issues/5013
ethtool -K flannel.1 checksum-ip-generic off
ethtool -K cni checksum-ip-generic off
ethtool -K ens192 checksum-ip-generic off

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Mertcan Akdeniz
Observability Engineer
Kloia
Ankara
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