Re: cassandra upgrades multi-DC in parallel

2019-03-12 Thread Rahul Singh
Carl, If you have done an automation and tested it a few time on a lower environment with the same data from production, I'd say go for it.. but as Jonathan said, if there's an issue, you won't be able to continue operations. On Tue, Mar 12, 2019 at 3:20 PM Jonathan Haddad wrote: > Nothing

Re: cassandra upgrades multi-DC in parallel

2019-03-12 Thread Jonathan Haddad
Nothing prevents it technically, but operationally you might not want to. Personally I’d prefer have the safety net of a dc to fall back on in case there’s an issue with the upgrade. On Wed, Mar 13, 2019 at 7:48 AM Carl Mueller wrote: > If there are multiple DCs in a cluster, is it safe to

cassandra upgrades multi-DC in parallel

2019-03-12 Thread Carl Mueller
If there are multiple DCs in a cluster, is it safe to upgrade them in parallel, with each DC doing a node-at-a-time?