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Category: HDFS

Aug 02

Apache Spark Overview

Sai Gowtham BadvityLeave a commentApache Spark, Hadoop, HDFSApache Spark, Cluster, hadoop, Spark

Apache Spark is a fast and general-purpose cluster computing system. Spark supports in-memory processing for parallel computation which is why it is pretty much faster than a Map-Reduce process. It supports a rich set of tools like Spark SQL    Read more

Jul 26

How to update the last modified timestamp of a file in HDFS?

Sai Gowtham BadvityLeave a commenthadoop jar, HDFS, Javahadoop, hadoop jar, HDFS, Java

Sometimes, we come across a situation where we may need to update the last modified time of a file in HDFS. We can achieve it using Hadoop FileSystem API in Java. Step 1: Create a simple maven project in Eclipse. Read more

Recent Posts

  • How to replace multiple strings with their corresponding replacement strings in Scala
  • How to make the first character uppercase of each word of a List in Scala
  • How to separate even and odd numbers in a List of Integers in Scala

Recent Comments

  • Sai Gowtham Badvity on Calculator program in Scala
  • Sai Aditya on Calculator program in Scala
  • pragadeeshwaran on How to add a new column and update its value based on the other column in the Dataframe in Spark
March 2023
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