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Recent Blogs

Hadoop-Hbase using Eclipse

  • 4th February, 2019 /
  • Prwatech

Prerequisites : Cloudera v4 (or above) Eclipse on cloudera HBase daemons running Step 1 : Open your eclipse and create...

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Hadoop-Map_Side Join in Hive

  • 4th February, 2019 /
  • Prwatech

Create two tables Copy the file or document in HDFS for both the tables: Load the data of the files...

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Apache Spark-Basic Scala Commands

  • 4th February, 2019 /
  • Prwatech

Val: It is an immutable variable which means we cannot reassign the value in val variable. Var:It is a mutable...

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Apache Spark-Kafka API

  • 4th February, 2019 /
  • Prwatech

Step 1: Download Kafka Download the kafka_2.11-2.0.0 release and un-tar it. https://archive.apache.org/dist/kafka/2.0.0/kafka_2.11-2.0.0.tgz And get into Kafka directory Step 2: Start...

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Hadoop-Hive commands #2

  • 4th February, 2019 /
  • Prwatech

To enter the hive shell: Command:  hive To create a database: Command: create database prwatech; To see the list of...

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