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From Tao Xiao <xiaotao.cs....@gmail.com>
Subject Re:
Date Fri, 13 Dec 2013 13:45:01 GMT
there are many many tutorials you can find and I suggest you read the
following books:
   Hadoop: The Definitive Guide
   Hadoop in Action


2013/12/13 chandu banavaram <chandu.banavaram@gmail.com>

> Hi Mirko,
>
> I doesn't know how to write MapReduce Jobs, so can you please suggest any
> website links or can you send any notes to me
>
>             Thank you,for your answer, because of you cleared one doubt.
>
> with Regards,
> chandu.
>
>
> On Thu, Dec 12, 2013 at 7:05 PM, Mirko Kämpf <mirko.kaempf@gmail.com>wrote:
>
>> The procedure of splitting the larger file into blocks is handled by the
>> client. It delivers each block to a DataNode (can be a different one for
>> each block, but does not have to be, e.g. in a pseudo distributed cluster
>> we have only one node). Replication of the blocks is handled in the cluster
>> by DataNodes and later also by the Balancer. Did you dive already into the
>> source code of the HDFS client implementation? There you will find the
>> details you are looking for.
>>
>> Best wishes
>> Mirko
>>
>>
>>
>> 2013/12/12 chandu banavaram <chandu.banavaram@gmail.com>
>>
>>> Hi Expert,
>>>
>>> I want to known that when client wants to store data into HDFS who will
>>> divide the big data into blocks and then stored in DataNodes.
>>>                   I mean when the client approachs the NameNode to store
>>> data who and how the data is dividing into Blocks and then sent it to the
>>> DataNodes.
>>>
>>>                   please reply me the answer.
>>>
>>> with Regards,
>>> chandu.
>>>
>>
>>
>

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