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From Benoit Perroud <ben...@noisette.ch>
Subject Re: Does anybody work about transaction on cassandra ?
Date Sat, 24 Apr 2010 17:30:24 GMT
"orthogonal" means "go to the opposite direction, but without going
back". Including "transaction" in Cassandra needs to turn 90 degrees
the design of Cassandra.

Kind regards,

Benoit.



2010/4/24 dir dir <sikerasakti@gmail.com>:
>>Transactions are orthogonal to the design of Cassandra
>
> Sorry, Would you want to tell me what is an orthogonal mean in this
> context??
> honestly I do not understand what is it.
>
> Thank you.
>
>
> On Thu, Apr 22, 2010 at 9:14 PM, Miguel Verde <miguelitovert@gmail.com>
> wrote:
>>
>> No, as far as I know no one is working on transaction support in
>> Cassandra.  Transactions are orthogonal to the design of Cassandra[1][2],
>> although a system could be designed incorporating Cassandra and other
>> elements a la Google's MegaStore[3] to support transactions.  Google uses
>> Paxos, one might be able to use Zookeeper[4] to design such a system, but it
>> would be a daunting task.
>>
>> [1] http://www.julianbrowne.com/article/viewer/brewers-cap-theorem
>> [2] http://www.allthingsdistributed.com/2008/12/eventually_consistent.html
>> [3] http://perspectives.mvdirona.com/2008/07/10/GoogleMegastore.aspx
>> [4] http://hadoop.apache.org/zookeeper/
>>
>> On Thu, Apr 22, 2010 at 2:56 AM, Jeff Zhang <zjffdu@gmail.com> wrote:
>>>
>>> Hi all,
>>>
>>> I need transaction support on cassandra, so wondering is anybody work on
>>> it ?
>>>
>>>
>>> --
>>> Best Regards
>>>
>>> Jeff Zhang
>>
>
>

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