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Learning Apache Apex

You're reading from  Learning Apache Apex

Product type Book
Published in Nov 2017
Publisher
ISBN-13 9781788296403
Pages 290 pages
Edition 1st Edition
Languages
Authors (5):
Thomas Weise Thomas Weise
Profile icon Thomas Weise
Ananth Gundabattula Ananth Gundabattula
Profile icon Ananth Gundabattula
Munagala V. Ramanath Munagala V. Ramanath
Profile icon Munagala V. Ramanath
David Yan David Yan
Profile icon David Yan
Kenneth Knowles Kenneth Knowles
Profile icon Kenneth Knowles
View More author details

Table of Contents (17) Chapters

Title Page
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
1. Introduction to Apex 2. Getting Started with Application Development 3. The Apex Library 4. Scalability, Low Latency, and Performance 5. Fault Tolerance and Reliability 6. Example Project – Real-Time Aggregation and Visualization 7. Example Project – Real-Time Ride Service Data Processing 8. Example Project – ETL Using SQL 9. Introduction to Apache Beam 10. The Future of Stream Processing

Working on the cluster


This section will cover some of the tools and techniques to monitor and debug the application in the distributed environment. We will also look at some of the options to apply changes to the application without rebuilding or packaging it. The tools we use in this section are standard components of Apex, Hadoop, and the operating system (nothing distribution or vendor specific).

Let's begin with some of the basic tools and commands that will allow us to gather information. YARN provides a basic web interface to look at information about running applications and container processes. Examples are based on the local Docker environment which was discussed earlier. The tools are all standard and available when working with a different cluster setup as well, although machine addresses and access may differ.

YARN web UI

Following is the RM web UI. It provides information about the cluster and running and terminated applications. Here, there are two applications of typeApacheApex...

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