Apache Spark: how to rename or delete a file from HDFS?
In this short post I will show you how you can change the name of the file / files created by Apache Spark to HDFS or simply rename or delete any file.
Scala: how to run a shell command from the code level?
In this post I will show you how to run the shell command by programming in Scala and how you can use it in Apache Spark.
Apache Spark: How to save DataFrame as a single file on HDFS?
If you want to save DataFrame as a file on HDFS, there may be a problem that it will be saved as many files. This is the most correct behavior and it results from the parallel work in Apache Spark.
Apache Spark: How to check if the file exists on HDFS?
We will use the FileSystem and Path classes from the org.apache.hadoop.fs library to achieve it.
Apache Spark: Machine Learning – predicting diabetes in patients
Today I will show you how you can use Machine Learning libraries (ML), which are available in Spark as a library under the name Spark MLib.
How to install Apache Spark Standalone in CentOs?
In this tutorial I will show you how you can easily install Apache Spark in CentOs
How to check if table exists in Hive using Spark?
Simple short tip how to check if table exists int Hive using Spark
How to use Dataframe API in spark efficiently when downloading data?
In this tutorial, I will introduce you to examples of reading data using the Dataframe API in Spark.
Configuration of Apache Spark, Scala and IntelliJ IDEA
In this tutorial I will show you how to create Scala project in IntelliJ IDEA and run the Spark job locally.
