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

    Details

      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

        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 ]
        backlogmanager Backlog Manager made changes -
        Status In Progress [ 3 ] Answered [ 10104 ]
        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 ]
        backlogmanager Backlog Manager created issue -

          People

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