General

• Overview
• Single Node Setup
• Cluster Setup
• Commands Reference
• FileSystem Shell
• Compatibility Specification
• Downstream Developer's Guide
• Admin Compatibility Guide
• Interface Classification
• FileSystem Specification

Common

• CLI Mini Cluster
• Fair Call Queue
• Native Libraries
• Proxy User
• Rack Awareness
• Secure Mode
• Service Level Authorization
• HTTP Authentication
• Credential Provider API
• Hadoop KMS
• Tracing
• Unix Shell Guide
• Registry
• Async Profiler

HDFS

• Architecture
• User Guide
• Commands Reference
• NameNode HA With QJM
• NameNode HA With NFS
• Observer NameNode
• Federation
• ViewFs
• ViewFsOverloadScheme
• Snapshots
• Edits Viewer
• Image Viewer
• Permissions and HDFS
• Quotas and HDFS
• libhdfs (C API)
• WebHDFS (REST API)
• HttpFS
• Short Circuit Local Reads
• Centralized Cache Management
• NFS Gateway
• Rolling Upgrade
• Extended Attributes
• Transparent Encryption
• Multihoming
• Storage Policies
• Memory Storage Support
• Synthetic Load Generator
• Erasure Coding
• Disk Balancer
• Upgrade Domain
• DataNode Admin
• Router Federation
• Provided Storage

MapReduce

• Tutorial
• Commands Reference
• Compatibility with 1.x
• Encrypted Shuffle
• Pluggable Shuffle/Sort
• Distributed Cache Deploy
• Support for YARN Shared Cache

MapReduce REST APIs

• MR Application Master
• MR History Server

YARN

• Architecture
• Commands Reference
• Capacity Scheduler
• Fair Scheduler
• ResourceManager Restart
• ResourceManager HA
• Resource Model
• Node Labels
• Node Attributes
• Web Application Proxy
• Timeline Server
• Timeline Service V.2
• Writing YARN Applications
• YARN Application Security
• NodeManager
• Running Applications in Docker Containers
• Running Applications in runC Containers
• Using CGroups
• Secure Containers
• Reservation System
• Graceful Decommission
• Opportunistic Containers
• YARN Federation
• Shared Cache
• Using GPU
• Using FPGA
• Placement Constraints
• YARN UI2

YARN REST APIs

• Introduction
• Resource Manager
• Node Manager
• Timeline Server
• Timeline Service V.2

YARN Service

• Overview
• QuickStart
• Concepts
• Yarn Service API
• Service Discovery
• System Services

Hadoop Compatible File Systems

• Aliyun OSS
• Amazon S3
• Azure Blob Storage
• Azure Data Lake Storage
• Tencent COS
• Huaweicloud OBS

Auth

• Overview
• Examples
• Configuration
• Building

Tools

• Hadoop Streaming
• Hadoop Archives
• Hadoop Archive Logs
• DistCp
• HDFS Federation Balance
• GridMix
• Rumen
• Resource Estimator Service
• Scheduler Load Simulator
• Hadoop Benchmarking
• Dynamometer

Reference

• Changelog and Release Notes
• Java API docs
• Unix Shell API
• Metrics

Configuration

• core-default.xml
• hdfs-default.xml
• hdfs-rbf-default.xml
• mapred-default.xml
• yarn-default.xml
• kms-default.xml
• httpfs-default.xml
• Deprecated Properties

Dependency Analysis

Used and declared dependencies

GroupId	ArtifactId	Version	Scope	Classifier	Type	Optional
org.apache.hadoop	hadoop-mapreduce-client-jobclient	3.4.0-SNAPSHOT	test	tests	test-jar	false
org.apache.hadoop	hadoop-common	3.4.0-SNAPSHOT	provided		jar	false
org.hsqldb	hsqldb	2.7.1	provided	jdk8	jar	false
org.apache.hadoop.thirdparty	hadoop-shaded-guava	1.1.1	provided		jar	false
org.slf4j	slf4j-api	1.7.30	compile		jar	false
org.assertj	assertj-core	3.12.2	test		jar	false
org.junit.jupiter	junit-jupiter-api	5.8.2	test		jar	false

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Used but undeclared dependencies

GroupId	ArtifactId	Version	Scope	Classifier	Type	Optional
commons-io	commons-io	2.11.0	provided		jar	false
org.apache.hadoop	hadoop-annotations	3.4.0-SNAPSHOT	provided		jar	false
org.apache.hadoop	hadoop-mapreduce-client-core	3.4.0-SNAPSHOT	provided		jar	false

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Unused but declared dependencies

GroupId	ArtifactId	Version	Scope	Classifier	Type	Optional
commons-cli	commons-cli	1.2	compile		jar	false
org.apache.hadoop	hadoop-mapreduce-client-jobclient	3.4.0-SNAPSHOT	provided		jar	false
org.apache.hadoop	hadoop-common	3.4.0-SNAPSHOT	test	tests	test-jar	false
org.apache.hadoop	hadoop-hdfs-client	3.4.0-SNAPSHOT	runtime		jar	false
org.apache.hadoop	hadoop-hdfs	3.4.0-SNAPSHOT	test	tests	test-jar	false
org.apache.hadoop	hadoop-yarn-server-tests	3.4.0-SNAPSHOT	test	tests	test-jar	false
org.apache.hadoop	hadoop-mapreduce-client-app	3.4.0-SNAPSHOT	provided		jar	false
org.apache.hadoop	hadoop-mapreduce-client-app	3.4.0-SNAPSHOT	test	tests	test-jar	false
com.sun.jersey.jersey-test-framework	jersey-test-framework-grizzly2	1.19.4	test		jar	false
org.apache.hadoop	hadoop-mapreduce-client-hs	3.4.0-SNAPSHOT	test		jar	false
org.junit.jupiter	junit-jupiter-engine	5.8.2	test		jar	false
org.junit.platform	junit-platform-launcher	1.8.2	test		jar	false

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