# Cant join control-plan

**URL:** <https://discuss.kubernetes.io/t/cant-join-control-plan/30221>\
**Category:** microk8s\
**Created:** [October 22, 2024, 9:43am UTC](https://discuss.kubernetes.io/t/cant-join-control-plan/30221 "2024-10-22T09:43:43Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Jarome\_Roshe](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.kubernetes.io/jarome_roshe/32/16090_2.png) [@Jarome\_Roshe](https://discuss.kubernetes.io/u/Jarome_Roshe)\
**Post date:** [October 22, 2024, 9:43am UTC](https://discuss.kubernetes.io/t/cant-join-control-plan/30221/1 "2024-10-22T09:43:43Z")

</div>

I’m trying to create a high availability (HA) cluster with 6 servers—3 master nodes and 3 worker nodes. I was able to successfully join the worker nodes, but when I tried to join a master node, I received the message ‘Successfully joined the cluster.’ However, the node isn’t actually joining, and I can see that the dqlite service is restarting continuously. I’m using Ubuntu 22.04, and I’ve also tried with Ubuntu 20.04. reinstall a few times, nothing helps

Failed to create server" error=“failed to create dqlite app: bootstrap node can’t join a cluster”  
systemd[1]: snap.microk8s.daemon-k8s-dqlite.service: Main process exited, code=exited, status=1/FAILURE  
systemd[1]: snap.microk8s.daemon-k8s-dqlite.service: Failed with result ‘exit-code’.