Hadoop Internals
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Architecture Overview
Anatomy of a MapReduce Job
Actors
Job Submitter
Node Manager
Resource Manager
Application Master
Tasks
Map Task
Reduce Task
Merger
Model of Computation
Job
Task
Task Attempt
Container
Application
Extra
Async Dispatcher
Localized Resource
Container Allocator [AM]
Container Launcher [AM]
Containers Launcher [NM]
Configuration Parameters
Emilio Coppa
ercoppa [at] gmail [dot] com
GitHub project
Localized Resource
Table of contents:
Finite State Machine
DOWNLOADING => LOCALIZED
Finite State Machine
DOWNLOADING => LOCALIZED
