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From Rustam Aliyev <rus...@code.az>
Subject Re: counter columns question
Date Thu, 15 Mar 2012 12:58:43 GMT
No, it's not possible.

On 15/03/2012 10:53, Tamar Fraenkel wrote:
> Watched the video, really good!
>
> One question:
> I wonder if it is possible to mix counter columns in Cassandra 1.0.7 
> with regular columns in the same CF.
>
> Even if it is possible, I am not sure I should mix them as I use 
> Hector, and this means I will have to user both Hector and CQL,
> Am I right?
> Thanks,
>
>
> *Tamar Fraenkel *
> Senior Software Engineer, TOK Media
>
> Inline image 1
>
> tamar@tok-media.com <mailto:tamar@tok-media.com>
> Tel: +972 2 6409736
> Mob: +972 54 8356490
> Fax: +972 2 5612956
>
>
>
>
>
> On Wed, Mar 14, 2012 at 1:52 PM, Alain RODRIGUEZ <arodrime@gmail.com 
> <mailto:arodrime@gmail.com>> wrote:
>
>     Here you got a good explaination of how the counters work.
>
>     Video : http://blip.tv/datastax/counters-in-cassandra-5497678
>     Sildes :
>     http://www.datastax.com/wp-content/uploads/2011/07/cassandra_sf_counters.pdf
>
>     I think it will answer your question and help you understanding
>     interesting things about counters.
>
>     If you need a short answer, it concurrency will be handled nicely
>     and you'll have the expected result.
>
>     Alain
>
>     2012/3/14 Tamar Fraenkel <tamar@tok-media.com
>     <mailto:tamar@tok-media.com>>
>
>         Hi!
>
>         My apologies for the naive question, but I am new to Cassandra
>         and even more to counter columns.
>
>         If I have a counter column, what happens if two threads are
>         trying to increment it's value at the same time for the same key?
>
>         Thanks,
>
>         *Tamar Fraenkel *
>         Senior Software Engineer, TOK Media
>
>         Inline image 1
>
>         tamar@tok-media.com <mailto:tamar@tok-media.com>
>         Tel: +972 2 6409736
>         Mob: +972 54 8356490
>         Fax: +972 2 5612956
>
>
>
>
>

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