I believe it is coming from system.local. You can verify by executing
select data_center from system.local;
I would be careful changing datacenter name, particularly in production. This
is essentially because if change of datacenter requires snitch
configuration change, it may result in stale data depending on token values
and snitch settings and there is a risk of node reporting invalid/ missing
data to client.
On Mon, Oct 10, 2016 at 4:08 PM, Ali Akhtar <ali.rac...@gmail.com> wrote:
> So I see this:
>
> cluster_name: 'Test Cluster'
>
> But when I grep -i or ctrl + f for 'datacenter1` in cassandra.yaml, I
> don't see that anywhere except in a comment.
>
>
> Yet when I do nodetool status, I see: datacenter1
>
> And unless I define my replication as: '{'class':
> 'NetworkTopologyStrategy', 'datacenter1' : 3}' when creating my keyspace,
> my inserts / selects don't work because it says 0 replicas available (i.e
> if i use anything other than 'datacenter1' in the above stmt)
>
> I don't see 'datacenter1' in rackdc.properties. So my question is, which
> file contains 'datacenter1'?
>
> On Tue, Oct 11, 2016 at 12:54 AM, Adam Hutson <a...@datascale.io> wrote:
>
>> There is a cluster name in the cassandra.yaml for naming the cluster, aka
>> data center. Then you assign keyspaces to the data center within the CREATE
>> KEYSPACE stmt with NetworkTopology.
>>
>>
>> On Monday, October 10, 2016, Ali Akhtar <ali.rac...@gmail.com> wrote:
>>
>>> Where can I change the default name 'datacenter1'? I've looked through
>>> the configuration files in /etc/cassandra , and can't find where this value
>>> is being defined.
>>>
>>
>>
>> --
>>
>> Adam Hutson
>> Data Architect | DataScale
>> +1 (417) 224-5212
>> a...@datascale.io
>>
>
>
