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FIWARE.Question.Tech.Data.BigData-Analysis.Fiware-Cosmos MapReduce

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      Description

      Created question in FIWARE Q/A platform on 03-03-2015 at 17:03
      Please, ANSWER this question AT http://stackoverflow.com/questions/28837355/fiware-cosmos-mapreduce

      Question:
      Fiware-Cosmos MapReduce

      Description:
      I have a Question regarding the MapReduce example explained here:

      http://forge.fiware.org/plugins/mediawiki/wiki/fiware/index.php/BigData_Analysis_-_Quick_Start_for_Programmers

      It is indeed the most common example of hadoop MapReduce, the WordCount.

      I am able to execute it with no problems at the global instance of Cosmos, but even when I give it an small input (a file with 2 or 3 lines) it takes a lot to execute it (half a minute more or less). I assume this is its normal behavior but my question is: ¿Why does it takes so long even for an small input?

      I guess this method increases its efectiveness with bigger datasets where this minimal delay is negligible.

        Activity

        Transition Time In Source Status Execution Times Last Executer Last Execution Date
        Open Open In Progress In Progress
        3h 1 Backlog Manager 12/Nov/15 6:04 PM
        In Progress In Progress Answered Answered
        2h 59m 1 Backlog Manager 12/Nov/15 9:04 PM
        Answered Answered Closed Closed
        5d 11h 36m 1 Manuel Escriche 18/Nov/15 8:41 AM
        fla Fernando Lopez made changes -
        Fix Version/s 2021 [ 12600 ]
        mev Manuel Escriche made changes -
        HD-Enabler Cosmos [ 10872 ]
        HD-Chapter Data [ 10838 ]
        mev Manuel Escriche made changes -
        Summary FIWARE.Question.Tech.Fiware-Cosmos MapReduce FIWARE.Question.Tech.Data.BigData-Analysis.Fiware-Cosmos MapReduce
        mev Manuel Escriche made changes -
        Summary FIWARE.Question.Tech.FIWARE.Question.Tech.Fiware-Cosmos MapReduce FIWARE.Question.Tech.Fiware-Cosmos MapReduce
        mev Manuel Escriche made changes -
        Summary FIWARE.Question.Tech.Fiware-Cosmos MapReduce FIWARE.Question.Tech.FIWARE.Question.Tech.Fiware-Cosmos MapReduce
        mev Manuel Escriche made changes -
        Summary [fiware-stackoverflow] Fiware-Cosmos MapReduce FIWARE.Question.Tech.Fiware-Cosmos MapReduce
        mev Manuel Escriche made changes -
        Assignee Francisco Romero [ frb ]
        mev Manuel Escriche made changes -
        Resolution Done [ 10000 ]
        Status Answered [ 10104 ] Closed [ 6 ]
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        backlogmanager Backlog Manager added a comment -

        2015-11-12 21:05|UPDATED status: transition Answered| # answers= 1, accepted answer= True

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        backlogmanager Backlog Manager added a comment - 2015-11-12 21:05|UPDATED status: transition Answered| # answers= 1, accepted answer= True
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        Status In Progress [ 3 ] Answered [ 10104 ]
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        2015-11-12 18:05|UPDATED status: transition Answer| # answers= 1, accepted answer= True

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        backlogmanager Backlog Manager added a comment - 2015-11-12 18:05|UPDATED status: transition Answer| # answers= 1, accepted answer= True
        backlogmanager Backlog Manager made changes -
        Status Open [ 1 ] In Progress [ 3 ]
        backlogmanager Backlog Manager made changes -
        Field Original Value New Value
        Component/s FIWARE-TECH-HELP [ 10278 ]
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        2015-11-12 15:05|CREATED monitor | # answers= 1, accepted answer= True

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        backlogmanager Backlog Manager added a comment - 2015-11-12 15:05|CREATED monitor | # answers= 1, accepted answer= True
        backlogmanager Backlog Manager created issue -

          People

          • Assignee:
            frb Francisco Romero
            Reporter:
            backlogmanager Backlog Manager
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              Updated:
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