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From Yehia Elshater <y.z.elsha...@gmail.com>
Subject Re: Copy hdfs block from one data node to another
Date Wed, 09 Jul 2014 19:41:06 GMT
Hi Chris,

Actually I need this functionality for my research, basically for fault
tolerance. I can calculate some failure probability for some data nodes
after certain unit of time. So I need to copy all the blocks reside on
these nodes to another nodes.


On 7 July 2014 20:45, Chris Mawata <chris.mawata@gmail.com> wrote:

> Can you outline why one would want to do that? The blocks are disposable
> so it is strange to manipulate them directly.
> On Jul 7, 2014 8:16 PM, "Yehia Elshater" <y.z.elshater@gmail.com> wrote:
>> Hi All,
>> How can copy a certain hdfs block (given the file name, start and end
>> bytes) from one node to another node ?
>> Thanks
>> Yehia

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