Hi, thanks for this information Rob. Yet, can't we rebuild a new DC with the current C* version, upgrade it to the new major once it is fully part of the C* cluster, and then switch all the clients to the new DC once we are sure everything is ok and shut down the old one ?
I mean, on a multiDC setup, while upgrading, there must be a moment that 2 DCs haven't the same major version, this is probably supported. With this process, won't I get rid of potential issue ? Alain 2014-04-03 23:52 GMT+02:00 Robert Coli <rc...@eventbrite.com>: > On Thu, Apr 3, 2014 at 8:56 AM, Alain RODRIGUEZ <arodr...@gmail.com>wrote: > >> Since we use AWS EC2 instances, Is it possible to upgrade Cassandra >> through a new DC as it is recommended while switching to vnodes ? >> > > No, because bootstrapping (and rebuilding/repairing/etc.) on a > split-major-version cluster is not supported. > > =Rob > >
