Tough engineering choices with large datasets in Hive Part - 1

Explore hive usage efficiently in this hadoop hive project using various file formats such as JSON, CSV, ORC, AVRO and compare their relative performances
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What will you learn

  • Common misuse/abuse of hive
  • How to use and interpret Hive's explain command
  • File formats and their relative performance (Text, JSON, SequenceFile, Avro, ORC and Parquet)
  • Compression
  • Spark and hive for transformation
  • Hive and Impala - making choices
  • Execution engines and performance

Project Description

The use of Hive or the hive meta-store is so ubiquitous in big data engineering that achieving efficient use of the tool is a factor in the success of many big data projects. Whether in integrating with Spark or using hive as an ETL tool, many big data projects either fail or succeed as they grow in scale and complexity because of decisions made in the early lifecycle of the analytics project.

In this hive project, we will explore using hive efficiently and this big data project format will take an exploratory pattern rather than a project building pattern. The goal of these sessions will be to explore Hive in uncommon ways towards mastery.

We will be using different sample dataset for hive in the series of these hive real time projects, exploring different Hadoop file formats like text, CSV, JSON, ORC, parquet, AVRO and sequence file, will look at compression and different codecs and take a look at the performance of each when you try integration with either spark or impala. The idea of this hadoop hive project is to explore enough so that we can be made a reasonable argument about what to do or not in any given scenario.

Curriculum For This Mini Project

 
  Overview of the Project
07m
  Datasets used for the Project
02m
  Downloading IBM Analytics DemoCloud
02m
  Logging to IBM Analytics DemoCloud
07m
  Downloading Airline Ontime Performance Dataset
12m
  Introduction to Hive
04m
  General Discussion on the Purpose of the Project
07m
  Agenda for the Project
15m
  Star Schema
03m
  Run Scripts to Create Database
17m
  Data Exploration
04m
  Data Analysis
03m
  Why Hive still is the Swiss Army Knife of Big Data?
34m
  Data Analysis Continuation
02m
  Quick Recap of the Previous Session
01m
  Partitioning
37m
  Use Hive Integration to read Data -Hive Metastore
14m
  Partioning using HCatalog
10m
  Partitioning -Alter, Drop, Move Partitions Notes
09m
  Clustering
21m
  Explain and Statistics
28m
  Different Types of Explain
03m