Also, you didn't mention which C*2.0 version you're using but prior to upgrade
to 2.1.20, make sure to use the latest 2.0 - or at least >= 2.0.7
Le vendredi 3 août 2018 à 13:03:39 UTC+2, Romain Hardouin
<[email protected]> a écrit :
Hi Joel,
No it's not supported. C*2.0 can't stream data to C*3.11.
Make the upgrade 2.0 -> 2.1.20 then you'll be able to upgrade to 3.11.3 i.e.
2.1.20 -> 3.11.3. You can upgrade to 3.0.17 as an intermediary step (I would
do), but don't upgrade to 2.2. Also make sure to read carefully
https://github.com/apache/cassandra/blob/cassandra-3.11/NEWS.txt It's a long
read but it's important. There are lots of changes between all these versions.
Best,
Romain Le vendredi 3 août 2018 à 11:40:26 UTC+2, Joel Samuelsson
<[email protected]> a écrit :
Hi,
We have a pretty outdated Cassandra cluster running version 2.0.x. Instead of
doing step by step upgrades (2.0 -> 2.1, 2.1 -> 2.2, 2.2 -> 3.0, 3.0 ->
3.11.x), would it be possible to add new nodes with a recent version (say
3.11.x) and start decommissioning the old ones until we have a cluster with
only 3.11.x?
Best regards,Joel
