Schema changes are not guaranteed to work across versions (especially major
versions where the internode protocol changes) - imagine the new version adds a
new primitive type or collection, adding a new collection on the new version
won’t be interpretable by the old version as anything meaningf
One should avoid doing things (apart from normal traffic) in mixed mode.
The best approach is to upgrade the nodes as fast as possible and then do
other activities.
Regards
On Thu, May 20, 2021 at 10:44 AM Jai Bheemsen Rao Dhanwada <
jaibheem...@gmail.com> wrote:
> Thanks for the suggestions.
>
Thanks for the suggestions.
Few more questions on the mixed mode. Can I perform the below operations on
my cluster in the mixed mode?
1. Add a new datacenter with the new version
2. Remove a datacenter
3. Add more nodes to the upgraded or non-upgraded datacenter
4. Schema changes
I haven't teste
Incredibly slow and has no real benefits beyond a single canary.
> On May 19, 2021, at 7:19 PM, rammohan ganapavarapu
> wrote:
>
>
> How about option 1? Any issues with option 1?
>
>> On Wed, May 19, 2021, 6:58 PM Kane Wilson wrote:
>>> On Thu, May 20, 2021 at 11:17 AM Jai Bheemsen Rao Dh
How about option 1? Any issues with option 1?
On Wed, May 19, 2021, 6:58 PM Kane Wilson wrote:
> On Thu, May 20, 2021 at 11:17 AM Jai Bheemsen Rao Dhanwada <
> jaibheem...@gmail.com> wrote:
>
>> Thanks for the response,
>>
>> Is there a limit on how long I can run in mixed mode? Let's say if
>>
On Thu, May 20, 2021 at 11:17 AM Jai Bheemsen Rao Dhanwada <
jaibheem...@gmail.com> wrote:
> Thanks for the response,
>
> Is there a limit on how long I can run in mixed mode? Let's say if
> datacenter 1 is upgraded and upgradesstables was run on day 1 and
> datacenter 3 is upgraded and upgradesst
Thanks for the response,
Is there a limit on how long I can run in mixed mode? Let's say if
datacenter 1 is upgraded and upgradesstables was run on day 1 and
datacenter 3 is upgraded and upgradesstables runs on day 10. Is that going
to be a big concern?
> 2 might be strictly safer if you trust in
> On May 19, 2021, at 5:15 PM, Jai Bheemsen Rao Dhanwada
> wrote:
>
>
> Hello,
>
> I am trying to get some suggestions on running upgradesstables(for a major
> version upgrade where there is a SSTable format change).
>
> The Cassandra cluster is set up in 3 datacenters with 18 nodes in e
Hello,
I am trying to get some suggestions on running upgradesstables(for a major
version upgrade where there is a SSTable format change).
The Cassandra cluster is set up in 3 datacenters with 18 nodes in each
region and here are the 3 options that I am evaluating.
1. Run "nodetool upgradesstabl
