Yes, perform that as soon as possible.
When you add a new datacenter, keyspaces that are SimpleStrategy (don't
forget about system_traces and system_distributed) won't work.
On Sat, Dec 19, 2020 at 12:38 PM Aaron Ploetz <aaronplo...@gmail.com> wrote:
> Yes, you absolutely can (and should) use NetworkTopologyStrategy with a
> single data center. In fact, I would argue that SimpleStrategy should
> almost never be used. But that's just me.
>
> Thanks,
>
> Aaron
>
>
> On Sat, Dec 19, 2020 at 3:21 AM Manu Chadha <manu.cha...@hotmail.com>
> wrote:
>
>> Is it possible to use NetworkTopologyStrategy when creating a keyspace and
>> add data centers later?
>>
>> I am just starting with an MVP application and I don't expect much
>> traffic or data. Thus I have created only one data center. However, I'll
>> like to add more data centers later if needed
>>
>> I notice that the replication factor for each data center needs to be
>> specified at the time of keyspace creation
>>
>> CREATE KEYSPACE "Excalibur"
>>
>> WITH REPLICATION = {'class' : 'NetworkTopologyStrategy', 'dc1' : 3, 'dc2'
>> : 2};
>>
>> As I only have dc1 at the moment, could I just do
>>
>> CREATE KEYSPACE "Excalibur"
>>
>> WITH REPLICATION = {'class' : 'NetworkTopologyStrategy', 'dc1' : 3};
>>
>> and when I have another datacenter say dc2, could I edit the Excalibur
>> keyspace?
>>
>> ALTER KEYSPACE "Excalibur"
>>
>> WITH REPLICATION = {'class' : 'NetworkTopologyStrategy', 'dc2' : 2};
>>
>>
>>
>> or can I start with SimpleStrategy now and change to
>> NetworkTopologyStrategy later? I suspect this might not work as I think
>> this needs changing snitch etc.
>>
>>
>>
>>
>>
>> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
>> Windows 10
>>
>>
>>
>
