Hello,
You might want to have a look at
https://issues.apache.org/jira/browse/CASSANDRA-14823
It seems that you could face a *data loss* while upgrading to Cassandra
3.11.3. Apparently, it is still somewhat unsafe to upgrade Cassandra to
C*3, even if you use the latest C*3.0.17/3.11.3. According
Hi,
Yes you can upgrade from 2.2 to 3.11.3
The steps for upgrade are there on lots of blogs and sites.
You can follow:
https://myopsblog.wordpress.com/2017/12/04/upgrade-cassandra-cluster-from-2-x-to-3-x/
You should read the NEWS.txt for information on any release while planning
for upgrade.
h
