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Posted to common-user@hadoop.apache.org by "I LOVE Hadoop :)" <ku...@gmail.com> on 2009/03/30 23:49:45 UTC
Need more detail on Hadoop architecture
Hello,
I want to know more details on using Hadoop framework to sort input data.
In example, sorting can be as simple as using identical map and reduce
class, and just allow the framework to do its basic work.
>From article
http://hadoop.apache.org/core/docs/r0.19.1/mapred_tutorial.html#Overview, I
learned that a number of classes, such as comparator and partitioner, can be
involved in the process, but I can not find more details how it takes place.
Could someone help?
Thanks.
--
Cheers! Hadoop core
Re: Need more detail on Hadoop architecture
Posted by Lukáš Vlček <lu...@gmail.com>.
BTW: there are at least two booksHadoop: The definitive
guide<http://oreilly.com/catalog/9780596521998/>
Hadoop in Action <http://www.manning.com/lam/>
both of wich I can recommend
anyway, simple web searching on the topic should give you a lot of
information.
Lukas
2009/3/30 Lukáš Vlček <lu...@gmail.com>
> Sorry ... :-)I was too quick and I didn't notice that you already pointed
> out this link.
>
>
> On Mon, Mar 30, 2009 at 11:57 PM, Lukáš Vlček <lu...@gmail.com>wrote:
>
>> Hi,
>> This tutorial can be a good start:
>> http://hadoop.apache.org/core/docs/current/mapred_tutorial.html
>>
>> Regards,
>> Lukas
>>
>>
>> On Mon, Mar 30, 2009 at 11:49 PM, I LOVE Hadoop :) <
>> kusanagiyang.hadoop@gmail.com> wrote:
>>
>>> Hello,
>>>
>>> I want to know more details on using Hadoop framework to sort input data.
>>> In example, sorting can be as simple as using identical map and reduce
>>> class, and just allow the framework to do its basic work.
>>> From article
>>> http://hadoop.apache.org/core/docs/r0.19.1/mapred_tutorial.html#Overview,
>>> I
>>> learned that a number of classes, such as comparator and partitioner, can
>>> be
>>> involved in the process, but I can not find more details how it takes
>>> place.
>>> Could someone help?
>>> Thanks.
>>>
>>> --
>>> Cheers! Hadoop core
>>>
>>
>>
>>
>> --
>> http://blog.lukas-vlcek.com/
>>
>
>
>
> --
> http://blog.lukas-vlcek.com/
>
--
http://blog.lukas-vlcek.com/
Re: Need more detail on Hadoop architecture
Posted by Lukáš Vlček <lu...@gmail.com>.
Sorry ... :-)I was too quick and I didn't notice that you already pointed
out this link.
On Mon, Mar 30, 2009 at 11:57 PM, Lukáš Vlček <lu...@gmail.com> wrote:
> Hi,
> This tutorial can be a good start:
> http://hadoop.apache.org/core/docs/current/mapred_tutorial.html
>
> Regards,
> Lukas
>
>
> On Mon, Mar 30, 2009 at 11:49 PM, I LOVE Hadoop :) <
> kusanagiyang.hadoop@gmail.com> wrote:
>
>> Hello,
>>
>> I want to know more details on using Hadoop framework to sort input data.
>> In example, sorting can be as simple as using identical map and reduce
>> class, and just allow the framework to do its basic work.
>> From article
>> http://hadoop.apache.org/core/docs/r0.19.1/mapred_tutorial.html#Overview,
>> I
>> learned that a number of classes, such as comparator and partitioner, can
>> be
>> involved in the process, but I can not find more details how it takes
>> place.
>> Could someone help?
>> Thanks.
>>
>> --
>> Cheers! Hadoop core
>>
>
>
>
> --
> http://blog.lukas-vlcek.com/
>
--
http://blog.lukas-vlcek.com/
Re: Need more detail on Hadoop architecture
Posted by Lukáš Vlček <lu...@gmail.com>.
Hi,
This tutorial can be a good start:
http://hadoop.apache.org/core/docs/current/mapred_tutorial.html
Regards,
Lukas
On Mon, Mar 30, 2009 at 11:49 PM, I LOVE Hadoop :) <
kusanagiyang.hadoop@gmail.com> wrote:
> Hello,
>
> I want to know more details on using Hadoop framework to sort input data.
> In example, sorting can be as simple as using identical map and reduce
> class, and just allow the framework to do its basic work.
> From article
> http://hadoop.apache.org/core/docs/r0.19.1/mapred_tutorial.html#Overview,
> I
> learned that a number of classes, such as comparator and partitioner, can
> be
> involved in the process, but I can not find more details how it takes
> place.
> Could someone help?
> Thanks.
>
> --
> Cheers! Hadoop core
>
--
http://blog.lukas-vlcek.com/