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From Alaa Zubaidi <alaa.zuba...@pdf.com>
Subject Re: latest rows
Date Wed, 16 Feb 2011 23:06:45 GMT
Thank you guys ...

On 2/16/2011 1:36 PM, Matthew Dennis wrote:
> +1 on avoiding OPP
>
> On Wed, Feb 16, 2011 at 3:27 PM, Tyler Hobbs<tyler@datastax.com>  wrote:
>
>> Thanks for you input, but we have a set key that consists of name:timestamp
>>> that we are using.. and we need to also retrieve the oldest data as well..
>>>
>> Then you'll need to denormalize and store every row three ways:  timestamp,
>> inverted timestamp, and normal, if you want to be able to access them in all
>> three ways using OPP.
>>
>> I would recommend not using OPP and just using timeline rows.  Here's a
>> fantastic discussion of OrderPreservingPartitioner vs RandomPartitioner<http://ria101.wordpress.com/2010/02/22/cassandra-randompartitioner-vs-orderpreservingpartitioner/>
>> .
>>
>>
>> --
>> Tyler Hobbs
>> Software Engineer, DataStax<http://datastax.com/>
>> Maintainer of the pycassa<http://github.com/pycassa/pycassa>  Cassandra
>> Python client library
>>
>>

-- 
Alaa Zubaidi
PDF Solutions, Inc.
333 West San Carlos Street, Suite 700
San Jose, CA 95110  USA
Tel: 408-283-5639 (or 408-280-7900 x5639)
fax: 408-938-6479
email: alaa.zubaidi@pdf.com



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