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From Julien Campan <>
Subject Re: Cassandra Client authentication and system table replication question
Date Wed, 30 Apr 2014 08:51:55 GMT
Hi Anand,

Yes you should change the replication factor of the system_auth keyspace.
By default it is RF = 1 and it s very dangerous in production. If you loose
one node  an user can loose all access.(it is a SPOF)
 You should use a multi DC replication for this keyspace.


2014-04-30 6:50 GMT+01:00 Anand Somani <>:

> Correction credentials are stored in the system_auth table, so it is
> ok/recommended to change the replication factor of that keyspace?
> On Tue, Apr 29, 2014 at 10:41 PM, Anand Somani <>wrote:
>> Hi
>> We have enabled cassandra client authentication and have set new
>> user/pass per keyspace. As I understand user/pass is stored in the system
>> table, do we need to change the replication factor of the system table so
>> this data is replicated? The cluster is going to be multi-dc.
>> Thanks
>> Anand

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