Cant really stream cross-version. You need to add nodes and then upgrade them (or upgrade all the nodes, and then add new ones).
On Mon, Aug 7, 2017 at 2:58 PM, ZAIDI, ASAD A <az1...@att.com> wrote: > Hi folks, I’ve question on upgrade method I’m thinking to execute. > > > > I’m planning from apache-Cassandra 2.2.8 to release 3.10. > > > > My Cassandra cluster is configured like one rack with two Datacenters like: > > > > 1. DC1 has 4 nodes > > 2. DC2 has 16 nodes > > > > We’re adding another 12 nodes and would eventually need to remove those 4 > nodes in DC1. > > > > I’m thinking to add another third data center with like DC3 with 12 nodes > having apache Cassandra 3.10 installed. Then, I start upgrading seed nodes > first in DC1 & DC2 – once all 20nodes in ( DC1 plus DC2) upgraded – I can > safely remove 4 DC1 nodes, > > can you guys please let me know if this approach would work? I’m concerned > if having mixed version on Cassandra nodes may cause any issues like in > streaming data/sstables from existing DC to newly created third DC with > version 3.10 installed, will nodes in DC3 join the cluster with data > without issues? > > > > Thanks/Asad > > > > > > > > >
