Apache Hadoop 3.5.0 – Apache Hadoop Changelog

##### 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
- 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
- VolcanoEngine TOS

##### 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

# Apache Hadoop Changelog

## Release 0.16.2 - 2008-04-02

### BUG FIXES:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
HADOOP-2833 | JobClient.submitJob(…) should not use “Dr Who” as a default username | Major | . | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze
HADOOP-3011 | Distcp deleting target directory | Blocker | util | Koji Noguchi | Chris Douglas
HADOOP-3033 | Datanode fails write to DFS file with exception message “Trying to change block file offset” | Major | . | dhruba borthakur | dhruba borthakur
HADOOP-2978 | JobHistory log format for COUNTER is ambigurous | Major | . | Runping Qi | Runping Qi
HADOOP-2985 | LocalJobRunner gets NullPointerException if there is no output directory | Critical | . | Owen O’Malley | Amareshwari Sriramadasu
HADOOP-3003 | FileSystem cache key should be updated after a FileSystem object is created | Major | fs | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze
HADOOP-3042 | Update the Javadoc in JobConf.getOutputPath to reflect the actual temporary path | Major | documentation | Devaraj Das | Amareshwari Sriramadasu
HADOOP-3007 | DataNode pipelining : failure on mirror results in failure on upstream datanode | Blocker | . | Raghu Angadi | Raghu Angadi
HADOOP-2944 | redesigned plugin has missing functionality | Major | contrib/eclipse-plugin | Chris Dyer | Christophe Taton
HADOOP-3049 | MultithreadedMapRunner eats RuntimeExceptions | Blocker | . | Alejandro Abdelnur | Alejandro Abdelnur
HADOOP-3039 | Runtime exceptions not killing job | Blocker | . | Amareshwari Sriramadasu | Amareshwari Sriramadasu
HADOOP-3027 | JobTracker shuts down during initialization if the NameNode is down | Blocker | . | Amareshwari Sriramadasu | Amareshwari Sriramadasu
HADOOP-3056 | distcp seems to be broken in 0.16.1 | Blocker | util | Christian Kunz | Chris Douglas
HADOOP-3070 | Trash not being expunged, Trash Emptier thread gone by NPE | Blocker | fs | Koji Noguchi | Koji Noguchi
HADOOP-3084 | distcp fails for files with zero length | Blocker | util | Mukund Madhugiri | Chris Douglas
HADOOP-3107 | fsck failing with NPE | Blocker | . | Koji Noguchi | dhruba borthakur
HADOOP-3105 | compile-core-test fails for branch 0.16 | Blocker | . | Amareshwari Sriramadasu | Alejandro Abdelnur
HADOOP-3103 | [HOD] Hadoop.tmp.dir should not be set to cluster directory | Blocker | contrib/hod | Vinod Kumar Vavilapalli | Vinod Kumar Vavilapalli
HADOOP-3098 | dfs -chown does not like “_” underscore in user name | Blocker | fs | Koji Noguchi | Raghu Angadi
HADOOP-3108 | NPE in FSDirectory.unprotectedSetPermission | Blocker | . | Koji Noguchi | Konstantin Shvachko
HADOOP-3104 | MultithreadMapRunner keeps consuming records even if trheads are not available | Critical | . | Alejandro Abdelnur | Alejandro Abdelnur
HADOOP-3128 | TestDFSPermission due to not throwing exception. | Major | . | Konstantin Shvachko | Konstantin Shvachko

### OTHER:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
HADOOP-3111 | Remove HBase from Hadoop contrib | Major | . | Jim Kellerman | Jim Kellerman