Hadoop For SQL Folks: Architecture, MapReduce and Powering IoT

  • Frank Banin

    Ten Centuries

    Points: 1323

    Comments posted to this topic are about the item Hadoop For SQL Folks: Architecture, MapReduce and Powering IoT

    Frank Banin
    BI and Advanced Analytics Professional.

  • twells-877741

    SSC Rookie

    Points: 29

    Very good technical overview of Hadoop. Thanks.

    Note to editor: I spotted numerous grammar errors and what appears to be missing words. For example, "the content of the text file is splitted into 3 blocks ". 'splitted' is not correct, use 'split'.

  • andycao

    Say Hey Kid

    Points: 698

    I agree. The numerous grammar errors mar an otherwise excellent article.

  • ebsutherla

    SSC Rookie

    Points: 37

    andycao (8/6/2015)


    I agree. The numerous grammar errors mar an otherwise excellent article.

    I could not finish the article due to the horrible grammar and punctuation. It distracted me to the point where I could not follow the content.

  • Frank Banin

    Ten Centuries

    Points: 1323

    In trying to convey substance it is very easy to ignore grammar. I will be cognizant of that the next time. I appreciate the feedback.

    Frank Banin
    BI and Advanced Analytics Professional.

  • David.Poole

    SSC Guru

    Points: 75191

    I enjoyed this article immensely and look forward to the next in the series.

    I thought initially that "well vexed in Java" was a typo but on reflection I think you are correct. Certainly when you compare Java to Python or Scala it seems a lot of trouble.

    Yarn (yet another resource negotiator) is quite important as it allows workloads to be protected from other hungry processes. Yarn labels allow certain worker nodes to be dedicated to particular apps. This is very important when there are applications that are licences on the number of worker nodes in the cluster dedicated to the app.

    Oracle licence ODI (Oracle equivalent of SSIS) on the number of cores in the entire cluster. Even those not dedicated to data processing.

  • Daniel Calbimonte

    SSCarpal Tunnel

    Points: 4712

    Excellent article. Are you going to write more articles about Hadoop?

    I am very interested in PolyBase, SSIS with Hadoop.

  • philipp 66546

    SSC Rookie

    Points: 35

    I think that in figure 3 you mean "name nodes" instead of "name none".

    Anyway, great article.

  • akljfhnlaflkj

    SSC Guru

    Points: 76202

    Thanks for the continued in depth look at Hadoop

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