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From Brian Jeltema <brian.jelt...@digitalenvoy.net>
Subject Re: are CFs consistent after a repair
Date Fri, 08 Feb 2013 14:24:06 GMT
I'm afraid I can't investigate further; enough time has elapsed that it appears the inconsistencies
have worked their way out of the cluster.


On Feb 7, 2013, at 9:25 PM, aaron morton wrote:

>>  'nodetool -pr repair' 
> Assuming nodetool repair -pr
> 
> If there is no write activity all reads (at any CL level) will return the same value
after a successful repair. 
> 
> If there is write activity there is always a possibility of inconsistencies, and so only
access where R + W >N (e.g. QUORUM + QUROUM ) will be consistent. 
> 
> Can you drill down into the consistency problem?
> 
> Cheers
>  
> -----------------
> Aaron Morton
> Freelance Cassandra Developer
> New Zealand
> 
> @aaronmorton
> http://www.thelastpickle.com
> 
> On 8/02/2013, at 7:01 AM, Brian Jeltema <brian.jeltema@digitalenvoy.net> wrote:
> 
>> I'm confused about consistency. I have a 6-node group (RF=3) and I have a table that
>> was known to be inconsistent across replicas (a Hadoop app was sensitive to this).
>> 
>> So a did a 'nodetool -pr repair' on every node in the cluster. After the repairs
were
>> complete, the Hadoop app still indicated inconsistencies. Is this to be expected?
>> 
>> Brian
> 


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