Maybe I was too hasty with my vote, then. I know from experience that once table params or new system table properties are added, rolling back is generally not possible. That can perhaps be fixed in some way but nothing currently exists.
Kind Regards, Brandon On Tue, Dec 2, 2025 at 1:49 PM C. Scott Andreas <[email protected]> wrote: > > The patch will need vetting for compatibility implications of upgrades from > (e.g.,) 4.0 + CEP-37 to newer-versioned releases like Apache Cassandra 5.0.6 > that don't have this change. > > Some sources of potential incompatibility (briefly scanned, not vetted) look > like: > > – Table params: > https://github.com/apache/cassandra/commit/6753fb49dcba6af6cccc02e62a5d425704d45b20#diff-44546e8ca2f2a8a986ec2b16f837b7526f2444e5fb2c6367abf35d8756fd0e51R578-R631 > – system_distributed generation bump: > https://github.com/apache/cassandra/commit/6753fb49dcba6af6cccc02e62a5d425704d45b20#diff-68edc51628c3cf6a0e9dbcff0dd697e130b952e0f328699db5541a21300aa0b2R89-R104 > – System table: > https://github.com/apache/cassandra/commit/6753fb49dcba6af6cccc02e62a5d425704d45b20#diff-68edc51628c3cf6a0e9dbcff0dd697e130b952e0f328699db5541a21300aa0b2R166 > > > On Dec 2, 2025, at 11:36 AM, Josh McKenzie <[email protected]> wrote: > > > In a couple prior discuss threads, the topic of backporting in-project repair > scheduling (CEP-37) came up a few times and the consensus seemed to be that > everyone was receptive to us backporting this feature to all GA branches. The > goal of this thread is to focus on that and formalize discussion and > consensus before a potential vote. > > Here's a link to the CEP-37: > https://cwiki.apache.org/confluence/display/CASSANDRA/CEP-37%3A+Apache+Cassandra+Unified+Repair+Solution > > And a link to the JIRA for the impl: > https://issues.apache.org/jira/browse/CASSANDRA-19918 > > And here's the PR: > https://github.com/apache/cassandra/commit/6753fb49dcba6af6cccc02e62a5d425704d45b20 > > So: what do we think? > > I'm personally +1 on allowing this to be backported to 4.0, 4.1, and 5.0. > > ----- > Prior reading: > - Discussing potential of a backport branch: > https://lists.apache.org/thread/xbxt21rttsqvhmh8ds9vs2cr7fx27w3k > - Discussing understanding fork motivations: > https://lists.apache.org/thread/5nv1f4bng4nw5ofgh135k5pf2f6l6lgl > >
