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  • Blog Post: Managing Your HDInsight Cluster and .Net Job Submissions using PowerShell

    This post explains how best to manage an HDInsight cluster using a management console and Windows PowerShell. The goal is to outline how to create a simple cluster, provide a mechanism for managing an elastic service, and demonstrate how to customize the cluster creation. Before provisioning a cluster...
  • Blog Post: Managing Your HDInsight Cluster with PowerShell

    An updated version of this post can be found here . This blog post provides a mechanism for managing an HDInsight cluster using a local management console through the use of Windows PowerShell. The goal is to outline how to configure the local management console, create a simple cluster, submit jobs...
  • Blog Post: Hadoop .Net HDFS File Access

    Provided with the Microsoft Distribution of Hadoop, HDInsight, is a C library for HDFS file access. This code extends this library through a Managed C++ solution. This solution enables one to consume HDFS files from within a .Net environment. The purpose of this post is first to ensure folks know about...
  • Blog Post: Co-occurrence Approach to an Item Based Recommender Update

    In a previous post I talked about a Co-occurrence Approach to an Item Based Recommender , that utilized the Math.Net Numerics library. Recently the Math.Net Numerics library was updated to version 2.3.0. With this version of the library I was able to update the code to more efficiently read the Sparse...
  • Blog Post: Implementing a MapReduce Join with Hadoop and the .Net Framework

    I have often been asked how does one implement a Join whilst writing MapReduce code. As such, I thought it would be useful to add an additional sample demonstrating how this is achieved. There are multiple mechanisms one can employ to perform a Join operation, and the one to be discussed will be a Reduce...
  • Blog Post: Framework for .Net Hadoop MapReduce Job Submission V1.0 Release

    It has been a few months since I have made a change to the “ Generics based Framework for .Net Hadoop MapReduce Job Submission ” code. However I was going to put together a sample for a Reduce side join and came across a issue around the usage of partitioners. As such I decided to add support...
  • Blog Post: Framework for .Net Hadoop MapReduce Job Submission TextOutput Type

    Some recent changes made to the “ Generics based Framework for .Net Hadoop MapReduce Job Submission ” code were to support Json and Binary Serialization from Mapper, in and out of Combiners, and out from the Reducer. However, this precluded one from controlling the format of the Text output. Say one...
  • Blog Post: C# MapReduce Based Co-occurrence Item Based Recommender

    As promised, to conclude the Co-occurrence Approach to an Item Based Recommender posts I wanted to port the MapReduce code to C#; just for kicks and to prove the code is also easy to write in C#. For an explanation of the MapReduce post review the previous article: http://blogs.msdn.com/b/carlnol/archive...
  • Blog Post: MapReduce Based Co-occurrence Approach to an Item Based Recommender

    In a previous post I covered the basics for a Co-occurrence Approach to an Item Based Recommender . As promised, here is the continuation of this work, an implementation of the same algorithm using MapReduce. Before reading this post it will be worth reading the Local version as it covers the sample...
  • Blog Post: Framework for .Net Hadoop MapReduce Job Submission Json Serialization

    A while back one of the changes made to the “ Generics based Framework for .Net Hadoop MapReduce Job Submission ” code was to support Binary Serialization from Mapper, in and out of Combiners, and out from the Reducer. Whereas this change was needed to support the Generic interfaces there...
  • Blog Post: Framework for .Net Hadoop MapReduce Job Submission configuration update

    To better support configuring the Stream environment whilst running .Net Streaming jobs I have made a change to the “ Generics based Framework for .Net Hadoop MapReduce Job Submission ” code. I have fixed a few bugs around setting job configuration options which were being controlled by...
  • Blog Post: Co-occurrence Approach to an Item Based Recommender

    For a while I thought I would tackle the problem of creating an item-based recommender. Firstly I will start with a local variant before moving onto a MapReduce version. The current version of the code can be found at: http://code.msdn.microsoft.com/Co-occurrence-Approach-to-57027db7 The approach taken...
  • Blog Post: Framework for .Net Hadoop MapReduce Job Submission Binary Output

    To end the week I decided to make a minor change to the “ Generics based Framework for .Net Hadoop MapReduce Job Submission ”. I have been doing some work on creating a co-occurrence matrix for item recommendations. I was going to map the process to a MapReduce job(s), then came across...
  • Blog Post: Hadoop .Net HDFS File Access (Revisited Archived)

    Updated post can be found here: http://blogs.msdn.com/b/carlnol/archive/2013/02/08/hdinsight-net-hdfs-file-access.aspx Provided with the Microsoft Distribution of Hadoop, in addition to the C library, a Managed C++ solution for HDFS file access is provided. This solution enables one to consume HDFS...
  • Blog Post: Generics based Framework for .Net Hadoop MapReduce Job Submission

    Over the past month I have been working on a framework to allow composition and submission of MapReduce jobs using .Net. I have put together two previous blog posts on this, so rather than put together a third on the latest change I thought I would create a final composite post. To understand why lets...
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