Apache Oozie Essentials电子书

Apache Oozie Essentials

Table of Contents

Apache Oozie Essentials

Credits

About the Author

About the Reviewers

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Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Downloading the example code

Errata

Piracy

Questions

1. Setting up Oozie

Configuring Oozie in Hortonworks distribution

Installing Oozie using tar ball

Creating a test virtual machine

Building Oozie source code

Summary of the build script

Codehaus Maven move

Download dependency jars

Preparing to create a WAR file

Create a WAR file

Configure Oozie MySQL database

Configure the shared library

Start server testing and verification

Summary

2. My First Oozie Job

Installing and configuring Hue

Oozie concepts

Workflows

Coordinator

Bundles

Book case study

Running our first Oozie job

Types of nodes

Control flow nodes

Action nodes

Oozie web console

The Oozie command line

Summary

3. Oozie Fundamentals

Chapter case study

The Decision node

The Email action

Expression Language functions

Basic EL constants

Basic EL functions

Workflow EL functions

Hadoop EL constants

HDFS EL functions

Email action configuration

Job property file

Submission from the command line

Workflow states

Summary

4. Running MapReduce Jobs

Chapter case study

Running MapReduce jobs from Oozie

The job.properties file

Running the job

Running Oozie MapReduce job

Coordinators

Datasets

Frequency and time

Cron syntax for frequency

Timezone

The <done-flag> tag

Initial instance

My first Coordinator

Coordinator v1 definition

job.properties v1 definition

Coordinator v2 definition

job.properties v2 definition

Checking the job log

Running a MapReduce streaming job

Summary

5. Running Pig Jobs

Chapter case study

The Pig command line

The config-default.xml file

Pig action

Pig Coordinator job v2

Parameters in the Dataset's input and output events

current(int n)

hoursInDay(int n)

daysInMonth(int n)

latest(int n)

Coordinator controls

Pig Coordinator job v3

Summary

6. Running Hive Jobs

Chapter case study

Running a Hive job from the command line

Hive action

Validating Oozie Workflow

Hive 2 action

Parameterization of Coordinator jobs

dateOffset(String baseDate, int instance, String timeUnit)

dateTzOffet(String baseDate, String timezone)

formatTime(String timeStamp, String format)

Summary

7. Running Sqoop Jobs

Chapter case study

Running Sqoop command line

Sqoop action

HCatalog

HCatalog datasets

HCatalog EL functions

HCatalog Coordinator functions

Pig script

The job.properties file

The Sqoop action Coordinator

Running the job

Checking data in the Hive table

Summary

8. Running Spark Jobs

Spark action

Bundles

Data pipelines

Summary

9. Running Oozie in Production

Packaging and continuous delivery

Oozie in secured cluster

Rerun

Rerun Workflow

Rerun Coordinator

Rerun Bundle

Summary

Index