Scenario Recently I created an Oozie workflow which contains one Spark action. The Spark action master is yarn and deploy mode is cluster. Each time when the job runs about 30 minutes, the application fails with errors like the following: Application applicatio...
View detailWhen creating Spark date frame using schemas, you may encounter errors about “field **: **Type can not accept object ** in type <class '*'>”. The actual error can vary, for instances, the following are some examples: field xxx: BooleanType can not accept object 100 in type ...
View detailIn Spark, SparkContext.parallelize function can be used to convert Python list to RDD and then RDD can be converted to DataFrame object. The following sample code is based on Spark 2.x. In this page, I am going to show you how to convert the following list to a data frame: data = [(...
View detailIn my article Connect to Teradata database through Python , I demonstrated about how to use Teradata python package or Teradata ODBC driver to connect to Teradata. In this article, I’m going to...
View detailIn one of my previous articles about Password Security Solution for Sqoop , I mentioned creating credential using hadoop credential command. The credentials are stored in JavaKey...
View detailThis pages summarizes the steps to install the latest version 2.4.3 of Apache Spark on Windows 10 via Windows Subsystem for Linux (WSL). Prerequisites Follow either of the following pages to install WSL in a system or non-system drive on your Windows 10. ...
View detailThis page summarizes the installation guides about big data tools on Windows through Windows Subsystem for Linux (WSL). ...
View detailThis page summarizes the steps to install Zeppelin version 0.7.3 on Windows 10 via Windows Subsystem for Linux (WSL). Version 0.8.1 When running Zeppelin in Ubuntu, the server may pick up one host address that is not accessible, for example 169.254.148.100, and the the remote interprete...
View detailI’ve been following Mobius project for a while and have been waiting for this day. .NET for Apache Spark v0.1.0 was just published on 2019-04-25 on GitHub. It provides high performance APIs for programming Apache Spark applications with C# and F#. It is .NET Standard complaint and can run in Wind...
View detailIn my previous post about Data Partitioning in Spark (PySpark) In-depth Walkthrough , I mentioned how to repartition data frames in Spark using repartition ...
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