More explicitly - if you have 60 nodes, setting rf=60 will likely make it very
difficult for you to log in as a superuser.
--
Jeff Jirsa
> On Sep 6, 2017, at 11:40 AM, Jon Haddad <jonathan.had...@gmail.com> wrote:
>
> I wouldn’t worry about being meticulous about keeping RF = N as the cluster
> grows. If you had 60 nodes and your auth data was only on 9 you’d be
> completely fine.
>
>> On Sep 6, 2017, at 11:36 AM, Cogumelos Maravilha
>> <cogumelosmaravi...@sapo.pt> wrote:
>>
>> After insert a new node we should:
>>
>> ALTER KEYSPACE system_auth WITH REPLICATION = { 'class' : ...
>> 'replication_factor' : x };
>>
>> x = number of nodes in dc
>>
>> The default user and password should work:
>> -u cassandra -p cassandra
>>
>> Cheers.
>>
>>> On 23-08-2017 11:14, kurt greaves wrote:
>>> The cassandra user requires QUORUM consistency to be achieved for
>>> authentication. Normal users only require ONE. I suspect your
>>> system_auth keyspace has an RF of 1, and the node that owns the
>>> cassandra users data is down.
>>>
>>> Steps to recover:
>>> 1. Turn off authentication on all the nodes
>>> 2. Restart the nodes and make sure they are UN
>>> 3. Alter system_auth to have a higher RF than 1 (3 is probably
>>> appropriate)
>>> 4. Turn auth back on and restart
>>> 5. Create a new user and use that from now on.
>>>
>>>
>>
>>
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