On Fri, Aug 30, 2013 at 8:57 AM, Mike Neir <m...@liquidweb.com> wrote:
> I'm faced with the need to update a 36 node cluster with roughly 25T of > data on disk to a version of cassandra in the 1.2.x series. While it seems > that 1.2.8 will play nicely in the 1.0.9 cluster long enough to do a > rolling upgrade, I'd still like to have a roll-back plan in case the > rolling upgrade goes sideways. > Upgrading two major versions online is an unsupported operation. I would not expect it to work. Is there a detailed reason you believe it should work between these versions? Also, instead of 1.2.8 you should upgrade to 1.2.9, released yesterday. Everyone headed to 2.0 has to pass through 1.2.9. =Rob
