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Posted to user@cassandra.apache.org by Carl Mueller <ca...@smartthings.com.INVALID> on 2019/03/12 18:48:11 UTC
cassandra upgrades multi-DC in parallel
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?
Re: cassandra upgrades multi-DC in parallel
Posted by Rahul Singh <ra...@gmail.com>.
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 <jo...@jonhaddad.com> wrote:
> 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
> <ca...@smartthings.com.invalid> wrote:
>
>> 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?
>>
> --
> Jon Haddad
> http://www.rustyrazorblade.com
> twitter: rustyrazorblade
>
Re: cassandra upgrades multi-DC in parallel
Posted by Jonathan Haddad <jo...@jonhaddad.com>.
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
<ca...@smartthings.com.invalid> wrote:
> 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?
>
--
Jon Haddad
http://www.rustyrazorblade.com
twitter: rustyrazorblade