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From Daniel Curry <daniel.cu...@arrayent.com>
Subject Re: replication_factor: ?
Date Fri, 07 Mar 2014 15:42:17 GMT
Thank you for the link,

On 03/07/2014 07:40 AM, Jonathan Lacefield wrote:
> Hello,
>
>   The rule of thumb depends on your use case, particularly your 
> consistency requirements.  Typical configuration is to leverage RF3. 
>  Here's documentation on consistency levels: 
> http://www.datastax.com/documentation/cassandra/1.2/cassandra/dml/dml_config_consistency_c.html
>
>   If you had a 3 node cluster with an RF 2, then 2 copies of data 
> would exist on each node., i.e. you would have 2 copies of data in 
> your cluster.
>
>   Hope that helps.
>
> Jonathan Lacefield
> Solutions Architect, DataStax
> (404) 822 3487 <tel:%28404%29%20822%203487>
> <http://www.linkedin.com/in/jlacefield>
>
>
> <http://www.datastax.com/what-we-offer/products-services/training/virtual-training>
>
>
> On Fri, Mar 7, 2014 at 10:26 AM, Daniel Curry 
> <daniel.curry@arrayent.com <mailto:daniel.curry@arrayent.com>> wrote:
>
>       I would like to know on what is the rule of thumb for
>     "replication_factor:" number?
>     I think the answer is depends on how many nodes one has? IE: three
>     nodes will be the
>     number 3.  What would happen it I put the number 2 for a three
>     node cluster?
>        We are using both 3.2.4 and 3.1.3 ( that will be upgraded to
>     3.2.4).
>
>     Thank you.
>
>     -- 
>     Daniel Curry
>
>     Sr. Linux System Administrator, Network Operations
>
>     PGP : AD5A 96DC 7556 A020 B8E7 0E4D 5D5E 9BA5 C83E 8C92
>
>     Arrayent, Inc.
>     2317 Broadway Street, Suite 20
>     Redwood City, CA 94063
>     daniel@arrayent.com <mailto:daniel@arrayent.com>
>     650-260-4520 <tel:650-260-4520>
>
>

-- 
Daniel Curry

Sr. Linux System Administrator, Network Operations

PGP : AD5A 96DC 7556 A020 B8E7 0E4D 5D5E 9BA5 C83E 8C92

Arrayent, Inc.
2317 Broadway Street, Suite 20
Redwood City, CA 94063
daniel@arrayent.com
650-260-4520


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