Scale down the original Rancher server #1953
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I was migrating my Rancher instance to a new cluster running RKE2 (the original local cluster was running RKE1), if followed the steps as described in https://ranchermanager.docs.rancher.com/how-to-guides/new-user-guides/backup-restore-and-disaster-recovery/migrate-rancher-to-new-cluster I found out that after i made the change on my DNS server - all the clusters that were registrated to my original Rancher server - were stuck on updating in the new Rancher server. I figured out that the cattle-cluster-agents were still communicating with the old Rancher server, and had to be restarted, or fail their connection with it - in order to make them communicate with the new Rancher server. I assume that more Rancher users can experience this problem, and this add to the Rancher migration guide will make their migrating operation easier.
OdedNeuhaus
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sunilarjun
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Aug 21, 2025
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Thanks for your PR! Just a few nitpicks.
...uides/new-user-guides/backup-restore-and-disaster-recovery/migrate-rancher-to-new-cluster.md
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…-recovery/migrate-rancher-to-new-cluster.md Co-authored-by: Petr Kovar <[email protected]>
…-recovery/migrate-rancher-to-new-cluster.md Co-authored-by: Petr Kovar <[email protected]>
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Okay, thank you very much for the reply :) |
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That should be it, thanks again. |
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Just checking if you’d like me to rebase or retarget this PR to a specific branch. |
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@OdedNeuhaus We can merge once the other supported versions are updated in this PR. Let me know if you need help with it. |
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@pmkovar I'm not really sure what does that mean. |
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Nov 10, 2025
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Oh great! Thank you very much. |
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I was migrating my Rancher 2.10.1 instance to a new cluster running RKE2 (the original local cluster was running RKE1), I followed the steps as described in:
https://ranchermanager.docs.rancher.com/how-to-guides/new-user-guides/backup-restore-and-disaster-recovery/migrate-rancher-to-new-cluster
I found out that after I made the change on my DNS server - all the clusters that were connected to my original Rancher server - were stuck on updating in the new Rancher server.
I figured out that the cattle-cluster-agents were still communicating with the old Rancher server, and had to fail their connection with it (or had to be restarted) - in order to make them communicate with the new Rancher server.
After I scaled down the the original Rancher server, the clusters became in Running state in the new Rancher server.
This is a very important step that wasn't mentioned in the migration guide.
I assume that more Rancher users can experience this problem when migrating their Rancher environment between clusters, and I think this addition to the Rancher migration guide will make their migrating operation easier (and possible).