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Sorting Values sent to reducer NOT based on KEY (Depending on part of VALUE) - MapReduce - [mail # user]
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...Hi how to sort value in hadoop using standard sorting algorithm of hadoop ( i.e sorting facility provided by hadoop) Requirement: 1) Values shoulde be sorted depending on s...
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Author: Vikas Jadhav,
2013-04-23, 05:44
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Re: Writing intermediate key,value pairs to file and read it again - MapReduce - [mail # user]
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...ya i looked @ chain reducer but it will not help in my case Now i am able to write each key value pair received @ reducer(using IFile.Writer ) but when i try to read it using IFile.Rea...
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Author: Vikas Jadhav,
2013-04-23, 05:36
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Writing intermediate key,value pairs to file and read it again - MapReduce - [mail # user]
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...Hello, Can anyone help me in following issue Writing intermediate key,value pairs to file and read it again let us say i have to write each intermediate pair received @reducer to a fil...
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Author: Vikas Jadhav,
2013-04-20, 15:43
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Re: How can I record some position of context in Reduce()? - MapReduce - [mail # user]
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...I wil express it in SQL form select * from table1, table2 where table1.attr , =,! On Wed, Apr 10, 2013 at 9:35 PM, Michel Segel wrote: * * * Rega...
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Author: Vikas Jadhav,
2013-04-11, 04:18
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Re: How can I record some position of context in Reduce()? - MapReduce - [mail # user]
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...How are you going to support NON EQUI Join using MapReduce ? As per my understanding there is only one way to do this is to bring all data to one reducer then reducer will know lesser/greate...
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Author: Vikas Jadhav,
2013-04-10, 13:11
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[MAPREDUCE-5063] Transfering mapper output (key,value) pair to multiple reducer - MapReduce - [issue]
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...Currently in Hadoop MapReduce mapper output in (key,value) form can be transfered to only one reducer Our goal is to be able transfer/shuffle (key,value) pair to multiple reducer...
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http://issues.apache.org/jira/browse/MAPREDUCE-5063
Author: Vikas Jadhav,
2013-03-25, 15:35
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shuffling one intermediate pair to more than one reducer - MapReduce - [mail # dev]
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...Hello I have use case where i want to shuffle same pair to more than one reducer. is there anyone tried this or can give suggestion how to implement it. I have crated jira for s...
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Author: Vikas Jadhav,
2013-03-25, 05:03
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Re: How to shuffle (Key,Value) pair from mapper to multiple reducer - MapReduce - [mail # user]
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...Hello I am not talking about custom partioner(custom partitioner is involved but i want to write same pair for more number times) i want it go to two reducer. for example i have partioning a...
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Author: Vikas Jadhav,
2013-03-13, 09:29
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Re: How to shuffle (Key,Value) pair from mapper to multiple reducer - MapReduce - [mail # user]
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...Hi I am specifying requirement again with example. I have use case where i need to shufffle same (key,value) pair to multiple reducers For Example we have pair &nbs...
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Author: Vikas Jadhav,
2013-03-13, 08:59
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How to shuffle (Key,Value) pair from mapper to multiple reducer - MapReduce - [mail # dev]
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...Hello, As by default Hadoop framework can shuffle (key,value) pair to only one reducer I have use case where i need to shufffle same (key,value) pair to multiple reducers A...
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Author: Vikas Jadhav,
2013-03-13, 06:15
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