Hello, I am trying to get some suggestions on running upgradesstables(for a major version upgrade where there is a SSTable format change).
The Cassandra cluster is set up in 3 datacenters with 18 nodes in each region and here are the 3 options that I am evaluating. 1. Run "nodetool upgradesstables" after every Cassandra node is upgraded to the new version. 2. Upgrade cassandra version on one of the data centers, run "nodetool upgradesstables" and proceed to the next datacenter and so on. 3. Upgrade cassandra version on all the datacenters and run "nodetool upgradesstables" at the end on all the data centers. I am more interested in understanding option-2 where I upgrade the cassandra version and run upgradesstables for one data center and then proceed to the next datacenter and so on. Are there any disadvantages with this option? Thanks in advance.
