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
ReduceTask
Table of contents:
Startup
Shuffle
Local Fetcher
Fetcher
Shuffle - Merge
Execution
Startup
Shuffle
Local Fetcher
Fetcher
Shuffle - Merge
Execution
