Hadoop-Hive script with Oozie
Integrating Hadoop, Hive, and Oozie enables the automation and orchestration of data processing workflows in a Hadoop ecosystem. Hadoop is a distributed computing framework for processing large datasets across clusters, while Hive provides a SQL-like interface for querying and analyzing data stored in Hadoop Distributed File System (HDFS). Oozie is a workflow scheduler system for managing and coordinating Hadoop jobs. Combining these technologies allows users to define complex data processing pipelines using Hive scripts within Oozie workflows. In this setup, Oozie serves as the workflow coordinator, orchestrating the execution of Hive scripts and other Hadoop jobs in a defined sequence or dependency. Create a dataset
♦ Start hive on terminal
After open hive Create Database cricket_team Go to cricket_team and create table ind_player
♦ Create table ind_player
Load data into the table ind_player
♦ Write a hive script and then save it as .hql extension
Save the .hql file in HDFS
♦ Go to hive/conf and copy hive-site.xml in HDFS
Go to oozie dashboard
Go to Hue→ workflow→editors→workflow→create
♦ Drag Hive in "Drop your action here
Put the Script file and Hive XML file path and click on save.
♦ Then submit
Save and Run
♦ After Successful run, you will get this type of screen
