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From Tamar Fraenkel <ta...@tok-media.com>
Subject Re: counter columns question
Date Thu, 15 Mar 2012 15:28:15 GMT
Thanks, already added a dedicated column family and all works fine!

*Tamar Fraenkel *
Senior Software Engineer, TOK Media

[image: Inline image 1]

tamar@tok-media.com
Tel:   +972 2 6409736
Mob:  +972 54 8356490
Fax:   +972 2 5612956





On Thu, Mar 15, 2012 at 2:58 PM, Rustam Aliyev <rustam@code.az> wrote:

>  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
>
> [image: Inline image 1]
>
> 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>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>
>>
>>> 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
>>>
>>> [image: Inline image 1]
>>>
>>> tamar@tok-media.com
>>> Tel:   +972 2 6409736
>>> Mob:  +972 54 8356490
>>> Fax:   +972 2 5612956
>>>
>>>
>>>
>>>
>>
>

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