1016 hadoop operations

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1016 hadoop operations

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...www.it-ebooks.info Hadoop Operations Eric Sammer Beijing • Cambridge • Farnham • Köln • Sebastopol • Tokyo www.it-ebooks.info Hadoop Operations by Eric Sammer Copyright © 2012... An Overview Hadoop Metrics Apache Hadoop 0.20.0 and CDH3 (metrics1) Apache Hadoop 0.20.203 and Later, and CDH4 (metrics2) What about SNMP? Health Monitoring Host-Level Checks All Hadoop Processes... sequential operations This minimizes drive seek operations one of the slowest operations a mechanical disk can perform—and results in better performance when doing large streaming I/O operations

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Mục lục

  • Table of Contents

  • Preface

    • Conventions Used in This Book

    • Using Code Examples

    • Safari® Books Online

    • How to Contact Us

    • Acknowledgments

    • Chapter 1. Introduction

    • Chapter 2. HDFS

      • Goals and Motivation

      • Design

      • Daemons

      • Reading and Writing Data

        • The Read Path

        • The Write Path

        • Managing Filesystem Metadata

        • Namenode High Availability

        • Namenode Federation

        • Access and Integration

          • Command-Line Tools

          • FUSE

          • REST Support

          • Chapter 3. MapReduce

            • The Stages of MapReduce

            • Introducing Hadoop MapReduce

              • Daemons

                • Jobtracker

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