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From aaron morton <aa...@thelastpickle.com>
Subject Re: Reading quorum
Date Fri, 03 Jun 2011 21:26:55 GMT
It means waiting for at least Quorum responses including the one data request sent to the "closest"
replica. The other replicas are asked to return a digest of the data.

The responses are then reconciled and if a difference is detected columns with the highest
timestamps will be returned. 

Hope that helps. 

-----------------
Aaron Morton
Freelance Cassandra Developer
@aaronmorton
http://www.thelastpickle.com

On 4 Jun 2011, at 04:53, mcasandra wrote:

> 
> Fredrik Stigbäck wrote:
>> 
>> Does reading quorum mean only waiting for quorum respones or does it mean
>> quorum respones with same latest timestamp?
>> 
>> Regards
>> /Fredrik
>> 
> 
> Well it depends on how your CL is for writes. If you write with QUORUM and
> then read with QUORUM then yes you will get at least one response with
> latest timestamp.
> 
> http://wiki.apache.org/cassandra/API http://wiki.apache.org/cassandra/API 
> 
> --
> View this message in context: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Reading-quorum-tp6435568p6436020.html
> Sent from the cassandra-user@incubator.apache.org mailing list archive at Nabble.com.


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