Hi all, We are currently running c*-2.0.17 with 2 datacenters each with 18 nodes.
We like to upgrade to c*-2.1.16. Can we upgrade first all nodes(one by one) in one dc and then go to next data center. As it might take few days as it will have 'upgrade sstables' , so just wanted to know would be there any possibility during this mismatch of c* version among nodes in cluster during this upgrade process? Thanks Techpyaasa
