Is there any way to upgrade clusters without downtime? It seems the import/export requires a shutdown, and nodes running different versions cannot join the same cluster, correct?
Import/export don't require a shutdown, but upgrading does.
Like you said, you cannot connect two nodes with different versions for now.
The versions will eventually be backward compatible (probably as soon as we'll be production ready). But for now, you will have a downtime.
Sorry for that, we'll try to hit the production ready milestone as soon as possible.
Thanks for the response. Communication of the status of the releases was very clear, so we were aware that not everything is 100% production ready. At least it's good to know for sure that we have to plan for downtime when upgrading, and aren't simply missing some less obvious way.
