Big Data Support

This is the team blog for the Big Data Support team at Microsoft. We support HDInsight which is Hadoop running on Windows Azure in the cloud, as well as other big data features.

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  • Blog Post: Some Commonly Used Yarn Memory Settings

    We were recently working on an out of memory issue that was occurring with certain workloads on HDInsight clusters. I thought it might be a good time to write on this topic based on all the current experience troubleshooting some memory issues. There are a few memory settings that can be tuned to suit...
  • Blog Post: How to use HBase Java API with HDInsight HBase cluster, part 1

    Recently we worked with a customer, who was trying to use HBase Java API to interact with an HDInsight HBase cluster. Having worked with the customer and trying to follow our existing documentations here and here , we realized that it may be helpful if we clarify a few things around HBase JAVA API connectivity...
  • Blog Post: How to use parameter substitution with Pig Latin and PowerShell

    When running Pig in a production environment, you'll likely have one or more Pig Latin scripts that run on a recurring basis (daily, weekly, monthly, etc.) that need to locate their input data based on when or where they are run. For example, you may have a Pig job that performs daily log ingestion by...
  • Blog Post: HDInsight: - Creating, Deploying and Executing Pig UDF

    During my developer experience, I always look for how customization (write my own processing) can be done if functionality is not available in programming language. That thought was triggered again when I was working on Apache Pig in HDInsight. So I started researching it and thought it would be good...
  • Blog Post: Sliding Window Data Partitioning on Microsoft Azure HDInsight

    HCatalog is a table and storage management layer for Hadoop that enables users with different data processing tools like Pig, Mapreduce, Hive, and Oozie to read and write data. HCatalog's table abstraction presents these tools and users with a relational view of data in the cluster. HCatalog Integration...
  • Blog Post: Querying HDInsight Job Status with WebHCat via Native PowerShell or Node.js

    One of the great things about HDInsight is that under the covers, it has the same capabilities as other Hadoop installations. This means that you can use regular Hadoop endpoints like Ambari and WebHCat (formerly known as Templeton) to interact with an HDInsight Cluster. In this blog post, I’ll...
  • Blog Post: Customizing HDInsight Cluster provisioning

    In my last blog , I discussed how we can specify Hadoop configurations for a job on an HDInsight cluster. At the end of that blog, I also dicussed the alternative approach where you may want to change certain hadoop configurations from default values and would like to preserve the changes throughout...
  • Blog Post: Using Apache Flume with HDInsight

    Gregory Suarez – 03/18/2014 (This blog posting assumes some basic knowledge of Apache Flume) Overview When asked if Apache Flume can be used with HDInsight, the response is typically no. We do not currently include Flume in our HDInsight service offering or in the HDInsight Server...
  • Blog Post: How to pass Hadoop configuration values for a job on HDInsight

    I came across the question a few times recently from several customers– "how do we pass hadoop configurations at runtime for a mapreduce job or Hive Query via HDInsight PowerShell or .Net SDK?" I thought of sharing the answer here with others who may run into the same question. It is pretty common...
  • Blog Post: How to add custom Hive UDFs to HDInsight

    I recently had a need to add a UDF to Hive on HDInsight. I thought that it would be good to share that experience on a blog post. Hive provides a library of built-in functions to achieve the most common needs. The cool thing is that it also provides the framework to create your own UDF. I had a recent...
  • Blog Post: Getting started with Sqoop in HDInsight

    My name is Farooq and I am with HDinsight support team here at Microsoft. In this blog I will try to give some brief overview of Sqoop in HDinsight and then use an example of importing data from a Windows Azure SQL Database table to HDInsight cluster to demonstrate how you can get stated with Sqoop in...
  • Blog Post: Getting started with the HDInsight PowerShell tools and SDK

    Hi, my name is Azim and I work on the Big Data Support Team at Microsoft. If you have had a chance to read an earlier post by Dharshana, you may have seen how we can submit Hive query using the HDInsight PowerShell tools. In this blog, we will cover some basics of the HDInsight PowerShell tools and SDK...
  • Blog Post: Get Started with Hive on HDInsight

    Hi, my name is Dharshana and I work on the Big Data Support Team at Microsoft. As covered in the earlier post by Dan from our team, HDInsight provides a very easy to use interface to provision a Hadoop cluster with a few clicks and interact with the cluster programmatically. In this blog post, we will...
  • Blog Post: The HDInsight Support Team is Open for Business

    Hi, my name is Dan and I work on the HDInsight Support Team at Microsoft. This week the Azure HDInsight Service reached the General Availability (GA) milestone and the HDInsight support team is officially open for business! Azure HDInsight is a 100% Apache compatible Hadoop distribution available...
  • Blog Post: We’ll be at SQL Saturday BI Edition #237 in Charlotte, NC

    We have several engineers attending and presenting at SQL Saturday BI Edition #237 this Saturday 10/19/2013 in Matthews, NC (Just down the road from Charlotte for those folks attending the PASS Summit ). Rick Hallihan and Bill Carroll will be presenting an overview of the Windows Azure HDInsight service...
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