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From aaron morton <aa...@thelastpickle.com>
Subject Re: Cassandra & usage
Date Wed, 25 Jan 2012 08:13:27 GMT
You data load is fine. 

It sounds like you will run into issues with the data model and functionality of cassandra.
"Standard Analysis" in the RDBMS sense of throwing any ad-hoc query at the data and letting
the query engine work it out is not possible without using HIVE/PIG or some other query language.

You will need to understand what sort of questions you want from the data up from. The best
way to learn this lesson is put together and quick prototype and see how the data model works.


Hope that helps. 

-----------------
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com

On 25/01/2012, at 8:09 PM, francesco.tangari.inf@gmail.com wrote:

> make example of cases please?
> 
> -- 
> francesco.tangari.inf@gmail.com
> Inviato con Sparrow
> 
> Il giorno mercoledì 25 gennaio 2012, alle ore 05.29, Gustavo Gustavo ha scritto:
> 
>> That's for sure not much.
>> Your rdbms can probably hold the entire dataset in memory, and you can do all kinds
for queries that you want. Cassandra is for some very specific use cases. 
>> If you really need a cluster, have you thought about MySQL Cluster? 
>> 
>> 2012/1/25 <francesco.tangari.inf@gmail.com>
>>> Standard analysis,  display or aggregate some rows
>>> or standard operations that i can do on a normal dbms
>>> 
>>> -- 
>>> francesco.tangari.inf@gmail.com
>>> Inviato con Sparrow
>>> 
>>> Il giorno mercoledì 25 gennaio 2012, alle ore 04.26, Maxim Potekhin ha scritto:
>>> 
>>>> You provide zero information on what you are planning to do with the data.
>>>> Thus, your question is impossible to answer.
>>>> 
>>>> 
>>>> On 1/24/2012 9:38 PM, francesco.tangari.inf@gmail.com wrote:
>>>>> 
>>>>> Do you think that for a standard project with 50.000.000 of rows on 2-3
machines cassandra is appropriate 
>>>>> or i should use a normal dbms?
>>>>> 
>>>>> -- 
>>>>> francesco.tangari.inf@gmail.com
>>>>> Inviato con Sparrow
>>>>> 
>>>> 
>>> 
>> 
> 


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