[image: image.png] On Fri, Nov 2, 2018 at 2:34 PM Jeff Jirsa <jji...@gmail.com> wrote:
> Easiest approach is to build the 3.11 jar from my repo, upgrade, then > ALTER table to use the official TWCS (org.apache.cassandra) jar > > Sorry for the headache. I hope I have a 3.11 branch for you. > > > -- > Jeff Jirsa > > > On Nov 2, 2018, at 11:28 AM, Brian Spindler <brian.spind...@gmail.com> > wrote: > > Hi all, we're planning an upgrade from 2.1.5->3.11.3 and currently we have > several column families configured with twcs class > 'com.jeffjirsa.cassandra.db.compaction.TimeWindowCompactionStrategy' and > with 3.11.3 we need to set it to 'TimeWindowCompactionStrategy' > > Is that a safe operation? Will cassandra even start if the column family > has a compaction strategy defined with a classname it cannot resolve? > How to deal with different versioned nodes and different class names > during the upgrade of the binaries throughout the cluster? > > Thank you for any guidance, > Brian > >
