Hello,
I have a Cassandra ring with 4 nodes in 0.8.9 and like to upgrade all nodes to
1.1.5.
It would be great that the upgrade has no downtime or minimal downtime of the
ring.
After I brought down one of the nodes and upgraded it to 1.1.5, when I tried to
bring it up,
the new 1.1.5 node
Do a rolling upgrade of the ring to 1.0.12 first and then upgrade to 1.1.x.
After each rolling upgrade, you should probably do the recommend nodetool
upgradesstables, etc. The datastax documentation about upgrading might be
helpful for you: http://www.datastax.com/docs/1.1/install/upgrading
