Hi Josh, This is a really good question. I agree with David about making sure this is clearly documented.
As far as the supported upgrade path goes, I think we should officially support only 3.11.x. I do understand the idea of giving users the flexibility to upgrade from 3.0.x. However, the simpler we can make the upgrade path the better. As you mentioned, historically there have been numerous upgrade bugs. To that, having one upgrade path will make maintenance and support easier. Kind regards, On Fri, 9 Oct 2020 at 07:36, David Capwell <dcapw...@gmail.com> wrote: > Thanks for bringing this up, we really should document this and make sure > the different upgrade paths are clearly documented and have proper > coverage. > > There was a conversation in slack a while back (started from > https://the-asf.slack.com/archives/CK23JSY2K/p1595906733435000) but not > formal or voted on, but the current upgrade targets were 3.0.x and 3.11.x > (do others feel we should support other versions as well and if so what?). > > For features, COMPACT STORAGE is getting a lot of attention right now, so > would love to see clarity on how we go from a cluster with COMPACT STORAGE > to 4.0 (is there min version support, what is the upgrade path, what about > deleted rows, etc.). > > This is what I know about the current state of 4.0 upgrades at least. > > On Thu, Oct 8, 2020 at 11:48 AM Joshua McKenzie <jmcken...@apache.org> > wrote: > > > Related JIRA ticket: > https://issues.apache.org/jira/browse/CASSANDRA-15588 > > > > Description: > > > > "We've historically had numerous bugs concerning upgrading clusters from > > one version to the other. Let's establish the supported upgrade path and > > ensure that users can safely perform the upgrades in production." > > > > So the topic of discussion here: what is our supported upgrade path to > 4.0? > > Is this actually documented on our site or in our documentation? Spent a > > few minutes poking around and didn't find anything. > > > > Anyone have an opinion here or any formal prior art for us to build on? > > >
