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 3.2.1 - 2019-09-10

### INCOMPATIBLE CHANGES:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
HADOOP-15922 | DelegationTokenAuthenticationFilter get wrong doAsUser since it does not decode URL | Major | common, kms | He Xiaoqiao | He Xiaoqiao

### NEW FEATURES:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
HADOOP-15950 | Failover for LdapGroupsMapping | Major | common, security | Lukas Majercak | Lukas Majercak
YARN-7055 | YARN Timeline Service v.2: beta 1 / GA | Major | timelineclient, timelinereader, timelineserver | Vrushali C |
YARN-9761 | Allow overriding application submissions based on server side configs | Major | . | Jonathan Hung | pralabhkumar

### IMPROVEMENTS:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
HADOOP-15676 | Cleanup TestSSLHttpServer | Minor | common | Szilard Nemeth | Szilard Nemeth
YARN-8896 | Limit the maximum number of container assignments per heartbeat | Major | . | Weiwei Yang | Zhankun Tang
YARN-8618 | Yarn Service: When all the components of a service have restart policy NEVER then initiation of service upgrade should fail | Major | . | Chandni Singh | Chandni Singh
HADOOP-15804 | upgrade to commons-compress 1.18 | Major | . | PJ Fanning | Akira Ajisaka
YARN-8916 | Define a constant “docker” string in “ContainerRuntimeConstants.java” for better maintainability | Minor | . | Zhankun Tang | Zhankun Tang
YARN-8908 | Fix errors in yarn-default.xml related to GPU/FPGA | Major | . | Zhankun Tang | Zhankun Tang
HDFS-13941 | make storageId in BlockPoolTokenSecretManager.checkAccess optional | Major | . | Ajay Kumar | Ajay Kumar
HDFS-14029 | Sleep in TestLazyPersistFiles should be put into a loop | Trivial | hdfs | Adam Antal | Adam Antal
YARN-8915 | Update the doc about the default value of “maximum-container-assignments” for capacity scheduler | Minor | . | Zhankun Tang | Zhankun Tang
HADOOP-15855 | Review hadoop credential doc, including object store details | Minor | documentation, security | Steve Loughran | Steve Loughran
YARN-7225 | Add queue and partition info to RM audit log | Major | resourcemanager | Jonathan Hung | Eric Payne
HADOOP-15687 | Credentials class should allow access to aliases | Trivial | . | Lars Francke | Lars Francke
YARN-8969 | AbstractYarnScheduler#getNodeTracker should return generic type to avoid type casting | Major | . | Wanqiang Ji | Wanqiang Ji
YARN-8977 | Remove unnecessary type casting when calling AbstractYarnScheduler#getSchedulerNode | Trivial | . | Wanqiang Ji | Wanqiang Ji
HDFS-14070 | Refactor NameNodeWebHdfsMethods to allow better extensibility | Major | . | CR Hota | CR Hota
HADOOP-15926 | Document upgrading the section in NOTICE.txt when upgrading the version of AWS SDK | Minor | documentation | Akira Ajisaka | Dinesh Chitlangia
HADOOP-12558 | distcp documentation is woefully out of date | Critical | documentation, tools/distcp | Allen Wittenauer | Dinesh Chitlangia
HDFS-14063 | Support noredirect param for CREATE/APPEND/OPEN/GETFILECHECKSUM in HttpFS | Major | . | Íñigo Goiri | Íñigo Goiri
HADOOP-15919 | AliyunOSS: Enable Yarn to use OSS | Major | fs/oss | wujinhu | wujinhu
HDFS-14064 | WEBHDFS: Support Enable/Disable EC Policy | Major | . | Ayush Saxena | Ayush Saxena
HADOOP-15943 | AliyunOSS: add missing owner & group attributes for oss FileStatus | Major | fs/oss | wujinhu | wujinhu
MAPREDUCE-7164 | FileOutputCommitter does not report progress while merging paths. | Major | . | Kuhu Shukla | Kuhu Shukla
YARN-9069 | Fix SchedulerInfo#getSchedulerType for custom schedulers | Minor | . | Bilwa S T | Bilwa S T
HDFS-14095 | EC: Track Erasure Coding commands in DFS statistics | Major | erasure-coding | Ayush Saxena | Ayush Saxena
HDFS-14112 | Avoid recursive call to external authorizer for getContentSummary. | Critical | namenode | Jitendra Nath Pandey | Tsz Wo Nicholas Sze
YARN-9036 | Escape newlines in health report in YARN UI | Major | . | Jonathan Hung | Keqiu Hu
YARN-9041 | Performance Optimization of method FSPreemptionThread#identifyContainersToPreempt | Major | fairscheduler, scheduler preemption | Wanqiang Ji | Wanqiang Ji
YARN-9085 | Add Guaranteed and MaxCapacity to CSQueueMetrics | Major | . | Jonathan Hung | Jonathan Hung
HDFS-14124 | EC : Support EC Commands (set/get/unset EcPolicy) via WebHdfs | Major | erasure-coding, httpfs, webhdfs | Souryakanta Dwivedy | Ayush Saxena
HADOOP-15808 | Harden Token service loader use | Major | security | Steve Loughran | Steve Loughran
YARN-9122 | Add table of contents to YARN Service API document | Minor | documentation | Akira Ajisaka | Zhankun Tang
HDFS-14171 | Performance improvement in Tailing EditLog | Major | namenode | Kenneth Yang | Kenneth Yang
HADOOP-15481 | Emit FairCallQueue stats as metrics | Major | metrics, rpc-server | Erik Krogen | Christopher Gregorian
HADOOP-15994 | Upgrade Jackson2 to 2.9.8 | Major | security | Akira Ajisaka | lqjacklee
HADOOP-16019 | ZKDelegationTokenSecretManager won’t log exception message occured in function setJaasConfiguration | Minor | common | luhuachao | luhuachao
HDFS-14213 | Remove Jansson from BUILDING.txt | Minor | documentation | Akira Ajisaka | Dinesh Chitlangia
HDFS-14221 | Replace Guava Optional with Java Optional | Major | . | Arpit Agarwal | Arpit Agarwal
HDFS-14222 | Make ThrottledAsyncChecker constructor public | Major | . | Arpit Agarwal | Arpit Agarwal
HADOOP-16075 | Upgrade checkstyle version to 8.16 | Minor | build | Dinesh Chitlangia | Dinesh Chitlangia
HADOOP-16089 | AliyunOSS: update oss-sdk version to 3.4.1 | Major | fs/oss | wujinhu | wujinhu
HDFS-14231 | DataXceiver#run() should not log exceptions caused by InvalidToken exception as an error | Major | hdfs | Kitti Nanasi | Kitti Nanasi
YARN-7171 | RM UI should sort memory / cores numerically | Major | . | Eric Maynard | Ahmed Hussein
YARN-9282 | Typo in javadoc of class LinuxContainerExecutor: hadoop.security.authetication should be ‘authentication’ | Trivial | . | Szilard Nemeth | Charan Hebri
HADOOP-16108 | Tail Follow Interval Should Allow To Specify The Sleep Interval To Save Unnecessary RPC’s | Major | . | Harshakiran Reddy | Ayush Saxena
YARN-8295 | [UI2] Improve “Resource Usage” tab error message when there are no data available. | Minor | yarn-ui-v2 | Gergely Novák | Charan Hebri
YARN-7824 | [UI2] Yarn Component Instance page should include link to container logs | Major | yarn-ui-v2 | Yesha Vora | Akhil PB
HADOOP-15281 | Distcp to add no-rename copy option | Major | tools/distcp | Steve Loughran | Andrew Olson
YARN-9309 | Improve graph text in SLS to avoid overlapping | Minor | . | Bilwa S T | Bilwa S T
HDFS-14235 | Handle ArrayIndexOutOfBoundsException in DataNodeDiskMetrics#slowDiskDetectionDaemon | Major | . | Surendra Singh Lilhore | Ranith Sardar
YARN-9168 | DistributedShell client timeout should be -1 by default | Minor | . | Zhankun Tang | Zhankun Tang
YARN-9087 | Improve logging for initialization of Resource plugins | Major | yarn | Szilard Nemeth | Szilard Nemeth
YARN-9121 | Replace GpuDiscoverer.getInstance() to a readable object for easy access control | Major | . | Szilard Nemeth | Szilard Nemeth
YARN-9139 | Simplify initializer code of GpuDiscoverer | Major | . | Szilard Nemeth | Szilard Nemeth
HDFS-14247 | Repeat adding node description into network topology | Minor | datanode | HuangTao | HuangTao
YARN-9332 | RackResolver tool should accept multiple hosts | Minor | yarn | Lantao Jin | Lantao Jin
HADOOP-16140 | hadoop fs expunge to add -immediate option to purge trash immediately | Major | fs | Stephen O’Donnell | Stephen O’Donnell
YARN-9138 | Improve test coverage for nvidia-smi binary execution of GpuDiscoverer | Major | . | Szilard Nemeth | Szilard Nemeth
MAPREDUCE-7191 | JobHistoryServer should log exception when loading/parsing history file failed | Minor | mrv2 | Jiandan Yang | Jiandan Yang
MAPREDUCE-7192 | JobHistoryServer attempts page support jump to containers log page in NM when logAggregation is disable | Major | mrv2 | Jiandan Yang | Jiandan Yang
HDFS-14346 | Better time precision in getTimeDuration | Minor | namenode | Chao Sun | Chao Sun
HDFS-14366 | Improve HDFS append performance | Major | hdfs | Chao Sun | Chao Sun
HADOOP-16196 | Path Parameterize Comparable | Minor | common | David Mollitor | David Mollitor
HADOOP-16181 | HadoopExecutors shutdown Cleanup | Minor | util | David Mollitor | David Mollitor
HADOOP-16147 | Allow CopyListing sequence file keys and values to be more easily customized | Major | tools/distcp | Andrew Olson | Andrew Olson
MAPREDUCE-7190 | Add SleepJob additional parameter to make parallel runs distinguishable | Major | . | Adam Antal | Adam Antal
YARN-9394 | Use new API of RackResolver to get better performance | Major | yarn | Lantao Jin | Lantao Jin
HADOOP-16208 | Do Not Log InterruptedException in Client | Minor | common | David Mollitor | David Mollitor
YARN-9463 | Add queueName info when failing with queue capacity sanity check | Trivial | capacity scheduler | Aihua Xu | Aihua Xu
HADOOP-16227 | Upgrade checkstyle to 8.19 | Major | build | Akira Ajisaka | Akira Ajisaka
HDFS-14432 | dfs.datanode.shared.file.descriptor.paths duplicated in hdfs-default.xml | Minor | hdfs | puleya7 | puleya7
HDFS-14463 | Add Log Level link under NameNode and DataNode Web UI Utilities dropdown | Trivial | webhdfs | Siyao Meng | Siyao Meng
YARN-9529 | Log correct cpu controller path on error while initializing CGroups. | Major | nodemanager | Jonathan Hung | Jonathan Hung
HADOOP-16289 | Allow extra jsvc startup option in hadoop_start_secure_daemon in hadoop-functions.sh | Major | scripts | Siyao Meng | Siyao Meng
HADOOP-16307 | Intern User Name and Group Name in FileStatus | Major | fs | David Mollitor | David Mollitor
HADOOP-16294 | Enable access to context by DistCp subclasses | Trivial | tools/distcp | Andrew Olson | Andrew Olson
HDFS-14507 | Document -blockingDecommission option for hdfs dfsadmin -listOpenFiles | Minor | documentation | Siyao Meng | Siyao Meng
HDFS-14451 | Incorrect header or version mismatch log message | Minor | ipc | David Mollitor | Shweta
HDFS-14502 | keepResults option in NNThroughputBenchmark should call saveNamespace() | Major | benchmarks, hdfs | Konstantin Shvachko | Konstantin Shvachko
HADOOP-16323 | https everywhere in Maven settings | Minor | build | Akira Ajisaka | Akira Ajisaka
YARN-9563 | Resource report REST API could return NaN or Inf | Minor | . | Ahmed Hussein | Ahmed Hussein
YARN-9545 | Create healthcheck REST endpoint for ATSv2 | Major | ATSv2 | Zoltan Siegl | Zoltan Siegl
HDFS-10659 | Namenode crashes after Journalnode re-installation in an HA cluster due to missing paxos directory | Major | ha, journal-node | Amit Anand | star
HDFS-14513 | FSImage which is saving should be clean while NameNode shutdown | Major | namenode | He Xiaoqiao | He Xiaoqiao
YARN-9543 | [UI2] Handle ATSv2 server down or failures cases gracefully in YARN UI v2 | Major | ATSv2, yarn-ui-v2 | Zoltan Siegl | Zoltan Siegl
HADOOP-16369 | Fix zstandard shortname misspelled as zts | Major | . | Jonathan Eagles | Jonathan Eagles
HDFS-14560 | Allow block replication parameters to be refreshable | Major | namenode | Stephen O’Donnell | Stephen O’Donnell
HDFS-12770 | Add doc about how to disable client socket cache | Trivial | hdfs-client | Weiwei Yang | Weiwei Yang
HADOOP-9157 | Better option for curl in hadoop-auth-examples | Minor | documentation | Jingguo Yao | Andras Bokor
HDFS-14340 | Lower the log level when can’t get postOpAttr | Minor | nfs | Anuhan Torgonshar | Anuhan Torgonshar
HADOOP-15914 | hadoop jar command has no help argument | Major | common | Adam Antal | Adam Antal
YARN-9630 | [UI2] Add a link in docs’s top page | Major | documentation, yarn-ui-v2 | Wanqiang Ji | Wanqiang Ji
HADOOP-16156 | [Clean-up] Remove NULL check before instanceof and fix checkstyle in InnerNodeImpl | Minor | . | Shweta | Shweta
HADOOP-14385 | HttpExceptionUtils#validateResponse swallows exceptions | Trivial | . | Wei-Chiu Chuang | Wei-Chiu Chuang
HDFS-12564 | Add the documents of swebhdfs configurations on the client side | Major | documentation, webhdfs | Takanobu Asanuma | Takanobu Asanuma
HDFS-14403 | Cost-Based RPC FairCallQueue | Major | ipc, namenode | Erik Krogen | Christopher Gregorian
HADOOP-16266 | Add more fine-grained processing time metrics to the RPC layer | Minor | ipc | Christopher Gregorian | Erik Krogen
YARN-9629 | Support configurable MIN_LOG_ROLLING_INTERVAL | Minor | log-aggregation, nodemanager, yarn | Adam Antal | Adam Antal
HDFS-13694 | Making md5 computing being in parallel with image loading | Major | . | zhouyingchao | Lisheng Sun
HDFS-14632 | Reduce useless #getNumLiveDataNodes call in SafeModeMonitor | Major | namenode | He Xiaoqiao | He Xiaoqiao
YARN-9573 | DistributedShell cannot specify LogAggregationContext | Major | distributed-shell, log-aggregation, yarn | Adam Antal | Adam Antal
YARN-9337 | GPU auto-discovery script runs even when the resource is given by hand | Major | yarn | Adam Antal | Adam Antal
YARN-9127 | Create more tests to verify GpuDeviceInformationParser | Major | . | Szilard Nemeth | Peter Bacsko
YARN-9326 | Fair Scheduler configuration defaults are not documented in case of min and maxResources | Major | docs, documentation, fairscheduler, yarn | Adam Antal | Adam Antal
HDFS-14547 | DirectoryWithQuotaFeature.quota costs additional memory even the storage type quota is not set. | Major | . | Jinglun | Jinglun
HDFS-14693 | NameNode should log a warning when EditLog IPC logger’s pending size exceeds limit. | Minor | namenode | Xudong Cao | Xudong Cao
YARN-9094 | Remove unused interface method: NodeResourceUpdaterPlugin#handleUpdatedResourceFromRM | Trivial | . | Szilard Nemeth | Gergely Pollak
YARN-9096 | Some GpuResourcePlugin and ResourcePluginManager methods are synchronized unnecessarily | Major | . | Szilard Nemeth | Gergely Pollak
YARN-9092 | Create an object for cgroups mount enable and cgroups mount path as they belong together | Minor | . | Szilard Nemeth | Gergely Pollak
YARN-9124 | Resolve contradiction in ResourceUtils: addMandatoryResources / checkMandatoryResources work differently | Minor | . | Szilard Nemeth | Adam Antal
YARN-8199 | Logging fileSize of log files under NM Local Dir | Major | log-aggregation | Prabhu Joseph | Prabhu Joseph
YARN-9729 | [UI2] Fix error message for logs when ATSv2 is offline | Major | yarn-ui-v2 | Zoltan Siegl | Zoltan Siegl
YARN-9135 | NM State store ResourceMappings serialization are tested with Strings instead of real Device objects | Major | . | Szilard Nemeth | Peter Bacsko
HDFS-14370 | Edit log tailing fast-path should allow for backoff | Major | namenode, qjm | Erik Krogen | Erik Krogen
YARN-9442 | container working directory has group read permissions | Minor | yarn | Jim Brennan | Jim Brennan
HADOOP-16459 | Backport [HADOOP-16266] “Add more fine-grained processing time metrics to the RPC layer” to branch-2 | Major | . | Erik Krogen | Erik Krogen
HDFS-14491 | More Clarity on Namenode UI Around Blocks and Replicas | Minor | . | Alan Jackoway | Siyao Meng
YARN-9134 | No test coverage for redefining FPGA / GPU resource types in TestResourceUtils | Major | . | Szilard Nemeth | Peter Bacsko
YARN-9133 | Make tests more easy to comprehend in TestGpuResourceHandler | Major | . | Szilard Nemeth | Peter Bacsko
YARN-9140 | Code cleanup in ResourcePluginManager.initialize and in TestResourcePluginManager | Trivial | . | Szilard Nemeth | Peter Bacsko
YARN-9676 | Add DEBUG and TRACE level messages to AppLogAggregatorImpl and connected classes | Major | . | Adam Antal | Adam Antal
YARN-9488 | Skip YARNFeatureNotEnabledException from ClientRMService | Minor | resourcemanager | Prabhu Joseph | Prabhu Joseph
YARN-8586 | Extract log aggregation related fields and methods from RMAppImpl | Major | . | Szilard Nemeth | Peter Bacsko
YARN-9100 | Add tests for GpuResourceAllocator and do minor code cleanup | Major | . | Szilard Nemeth | Peter Bacsko
HADOOP-15246 | SpanReceiverInfo - Prefer ArrayList over LinkedList | Trivial | common | David Mollitor | David Mollitor
HADOOP-16158 | DistCp to support checksum validation when copy blocks in parallel | Major | tools/distcp | Kai Xie | Kai Xie
HDFS-14746 | Trivial test code update after HDFS-14687 | Trivial | ec | Wei-Chiu Chuang | kevin su
HDFS-13709 | Report bad block to NN when transfer block encounter EIO exception | Major | datanode | Chen Zhang | Chen Zhang
HDFS-14665 | HttpFS: LISTSTATUS response is missing HDFS-specific fields | Major | httpfs | Siyao Meng | Siyao Meng
HDFS-14276 | [SBN read] Reduce tailing overhead | Major | ha, namenode | Wei-Chiu Chuang | Ayush Saxena
HADOOP-16061 | Update Apache Yetus to 0.10.0 | Major | build | Akira Ajisaka | Akira Ajisaka
YARN-9756 | Create metric that sums total memory/vcores preempted per round | Major | capacity scheduler | Eric Payne | Manikandan R
HDFS-14748 | Make DataNodePeerMetrics#minOutlierDetectionSamples configurable | Major | . | Lisheng Sun | Lisheng Sun
HADOOP-15998 | Ensure jar validation works on Windows. | Blocker | build | Brian Grunkemeyer | Brian Grunkemeyer
HDFS-14633 | The StorageType quota and consume in QuotaFeature is not handled for rename | Major | . | Jinglun | Jinglun
YARN-9810 | Add queue capacity/maxcapacity percentage metrics | Major | . | Jonathan Hung | Shubham Gupta
YARN-9763 | Print application tags in application summary | Major | . | Jonathan Hung | Manoj Kumar
YARN-9795 | ClusterMetrics to include AM allocation delay | Minor | . | Fengnan Li | Fengnan Li
YARN-8995 | Log events info in AsyncDispatcher when event queue size cumulatively reaches a certain number every time. | Major | metrics, nodemanager, resourcemanager | zhuqi | zhuqi

### BUG FIXES:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
HDFS-13973 | getErasureCodingPolicy should log path in audit event | Major | hdfs | Shweta | Shweta
YARN-8868 | Set HTTPOnly attribute to Cookie | Major | . | Chandni Singh | Chandni Singh
HDFS-14003 | Fix findbugs warning in trunk for FSImageFormatPBINode | Major | . | Yiqun Lin | Yiqun Lin
YARN-8910 | Misleading log statement in NM when max retries is -1 | Minor | . | Chandni Singh | Chandni Singh
YARN-7502 | Nodemanager restart docs should describe nodemanager supervised property | Major | documentation | Jason Lowe | Suma Shivaprasad
YARN-8826 | Fix lingering timeline collector after serviceStop in TimelineCollectorManager | Trivial | ATSv2 | Prabha Manepalli | Prabha Manepalli
HDFS-14021 | TestReconstructStripedBlocksWithRackAwareness#testReconstructForNotEnoughRacks fails intermittently | Major | erasure-coding, test | Xiao Chen | Xiao Chen
MAPREDUCE-7151 | RMContainerAllocator#handleJobPriorityChange expects application_priority always | Major | . | Bibin A Chundatt | Bilwa S T
HDFS-14028 | HDFS OIV temporary dir deletes folder | Major | hdfs | Adam Antal | Adam Antal
HDFS-14027 | DFSStripedOutputStream should implement both hsync methods | Critical | erasure-coding | Xiao Chen | Xiao Chen
HADOOP-15899 | Update AWS Java SDK versions in NOTICE.txt | Major | . | Akira Ajisaka | Akira Ajisaka
HADOOP-15900 | Update JSch versions in LICENSE.txt | Major | . | Akira Ajisaka | Akira Ajisaka
HDFS-14042 | Fix NPE when PROVIDED storage is missing | Major | . | Íñigo Goiri | Virajith Jalaparti
HDFS-14043 | Tolerate corrupted seen_txid file | Major | hdfs, namenode | Lukas Majercak | Lukas Majercak
YARN-8970 | Improve the debug message in CS#allocateContainerOnSingleNode | Trivial | . | Weiwei Yang | Zhankun Tang
YARN-8865 | RMStateStore contains large number of expired RMDelegationToken | Major | resourcemanager | Wilfred Spiegelenburg | Wilfred Spiegelenburg
HDFS-14048 | DFSOutputStream close() throws exception on subsequent call after DataNode restart | Major | hdfs-client | Erik Krogen | Erik Krogen
MAPREDUCE-7156 | NullPointerException when reaching max shuffle connections | Major | mrv2 | Peter Bacsko | Peter Bacsko
YARN-8866 | Fix a parsing error for crossdomain.xml | Major | build, yarn-ui-v2 | Takanobu Asanuma | Takanobu Asanuma
HDFS-14039 | ec -listPolicies doesn’t show correct state for the default policy when the default is not RS(6,3) | Major | erasure-coding | Xiao Chen | Kitti Nanasi
HADOOP-15916 | Upgrade Maven Surefire plugin to 3.0.0-M1 | Blocker | build | Akira Ajisaka | Akira Ajisaka
YARN-9002 | YARN Service keytab does not support s3, wasb, gs and is restricted to HDFS and local filesystem only | Major | yarn-native-services | Gour Saha | Gour Saha
YARN-8233 | NPE in CapacityScheduler#tryCommit when handling allocate/reserve proposal whose allocatedOrReservedContainer is null | Critical | capacityscheduler | Tao Yang | Tao Yang
HDFS-14065 | Failed Storage Locations shows nothing in the Datanode Volume Failures | Major | . | Ayush Saxena | Ayush Saxena
HADOOP-15923 | create-release script should set max-cache-ttl as well as default-cache-ttl for gpg-agent | Blocker | build | Akira Ajisaka | Akira Ajisaka
HADOOP-15912 | start-build-env.sh still creates an invalid /etc/sudoers.d/hadoop-build-${USER_ID} file entry after HADOOP-15802 | Major | build | Akira Ajisaka | Akira Ajisaka
HADOOP-15869 | BlockDecompressorStream#decompress should not return -1 in case of IOException. | Major | . | Surendra Singh Lilhore | Surendra Singh Lilhore
MAPREDUCE-7158 | Inefficient Flush Logic in JobHistory EventWriter | Major | . | Zichen Sun | Zichen Sun
HADOOP-15930 | Exclude MD5 checksum files from release artifact | Critical | build | Akira Ajisaka | Akira Ajisaka
YARN-8856 | TestTimelineReaderWebServicesHBaseStorage tests failing with NoClassDefFoundError | Major | . | Jason Lowe | Sushil Ks
HADOOP-15925 | The config and log of gpg-agent are removed in create-release script | Major | build | Akira Ajisaka | Dinesh Chitlangia
HDFS-13963 | NN UI is broken with IE11 | Minor | namenode, ui | Daisuke Kobayashi | Ayush Saxena
HDFS-14056 | Fix error messages in HDFS-12716 | Minor | hdfs | Adam Antal | Ayush Saxena
YARN-8992 | Fair scheduler can delete a dynamic queue while an application attempt is being added to the queue | Major | fairscheduler | Haibo Chen | Wilfred Spiegelenburg
YARN-8984 | AMRMClient#OutstandingSchedRequests leaks when AllocationTags is null or empty | Critical | . | Yang Wang | Yang Wang
HADOOP-15948 | Inconsistency in get and put syntax if filename/dirname contains space | Minor | fs | vivek kumar | Ayush Saxena
HDFS-13816 | dfs.getQuotaUsage() throws NPE on non-existent dir instead of FileNotFoundException | Major | namenode | Vinayakumar B | Vinayakumar B
MAPREDUCE-7162 | TestEvents#testEvents fails | Critical | jobhistoryserver, test | Zhaohui Xin | Zhaohui Xin
YARN-9056 | Yarn Service Upgrade: Instance state changes from UPGRADING to READY without performing a readiness check | Critical | . | Chandni Singh | Chandni Singh
YARN-8812 | Containers fail during creating a symlink which started with hyphen for a resource file | Minor | . | Oleksandr Shevchenko | Oleksandr Shevchenko
YARN-9030 | Log aggregation changes to handle filesystems which do not support setting permissions | Major | log-aggregation | Suma Shivaprasad | Suma Shivaprasad
YARN-9067 | YARN Resource Manager is running OOM because of leak of Configuration Object | Major | yarn-native-services | Eric Yang | Eric Yang
MAPREDUCE-7165 | mapred-site.xml is misformatted in single node setup document | Major | documentation | Akira Ajisaka | Zhaohui Xin
HADOOP-15970 | Upgrade plexus-utils from 2.0.5 to 3.1.0 | Major | security | Akira Ajisaka | Akira Ajisaka
HADOOP-15966 | Hadoop Kerberos broken on macos as java.security.krb5.realm is reset: Null realm name (601) | Major | scripts | Steve Loughran | Steve Loughran
HADOOP-15974 | Upgrade Curator version to 2.13.0 to fix ZK tests | Major | . | Jason Lowe | Akira Ajisaka
YARN-9071 | NM and service AM don’t have updated status for reinitialized containers | Critical | . | Billie Rinaldi | Chandni Singh
MAPREDUCE-7159 | FrameworkUploader: ensure proper permissions of generated framework tar.gz if restrictive umask is used | Major | mrv2 | Peter Bacsko | Peter Bacsko
YARN-9009 | Fix flaky test TestEntityGroupFSTimelineStore.testCleanLogs | Minor | . | OrDTesters | OrDTesters
MAPREDUCE-7170 | Doc typo in PluggableShuffleAndPluggableSort.md | Minor | documentation | Zhaohui Xin | Zhaohui Xin
YARN-9040 | LevelDBCacheTimelineStore in ATS 1.5 leaks native memory | Major | timelineserver | Tarun Parimi | Tarun Parimi
YARN-9084 | Service Upgrade: With default readiness check, the status of upgrade is reported to be successful prematurely | Major | . | Chandni Singh | Chandni Singh
HDFS-13661 | Ls command with e option fails when the filesystem is not HDFS | Major | erasure-coding, tools | Takanobu Asanuma | Takanobu Asanuma
YARN-9154 | Fix itemization in YARN service quickstart document | Minor | documentation | Akira Ajisaka | Ayush Saxena
HDFS-14166 | Ls with -e option not giving the result in proper format | Major | . | Soumyapn | Shubham Dewan
HDFS-14046 | In-Maintenance ICON is missing in datanode info page | Major | datanode | Harshakiran Reddy | Ranith Sardar
HDFS-14183 | [SPS] Remove the -w parameter from the -satisfystoragepolicy usage | Major | . | Ayush Saxena | Ayush Saxena
YARN-9164 | Shutdown NM may cause NPE when opportunistic container scheduling is enabled | Critical | . | lujie | lujie
YARN-8567 | Fetching yarn logs fails for long running application if it is not present in timeline store | Major | log-aggregation | Tarun Parimi | Tarun Parimi
HADOOP-16028 | Fix NetworkTopology chooseRandom function to support excluded nodes | Major | . | Sihai Ke | Sihai Ke
HADOOP-16030 | AliyunOSS: bring fixes back from HADOOP-15671 | Blocker | fs/oss | wujinhu | wujinhu
YARN-9162 | Fix TestRMAdminCLI#testHelp | Major | resourcemanager, test | Ayush Saxena | Ayush Saxena
YARN-9173 | FairShare calculation broken for large values after YARN-8833 | Major | fairscheduler | Wilfred Spiegelenburg | Wilfred Spiegelenburg
YARN-8833 | Avoid potential integer overflow when computing fair shares | Major | fairscheduler | liyakun | liyakun
HADOOP-16036 | WASB: Disable jetty logging configuration announcement | Major | fs/azure | Da Zhou | Da Zhou
HADOOP-16016 | TestSSLFactory#testServerWeakCiphers sporadically fails in precommit builds | Major | security, test | Jason Lowe | Akira Ajisaka
HDFS-14198 | Upload and Create button doesn’t get enabled after getting reset. | Major | . | Ayush Saxena | Ayush Saxena
YARN-8747 | [UI2] YARN UI2 page loading failed due to js error under some time zone configuration | Critical | webapp | collinma | collinma
YARN-9203 | Fix typos in yarn-default.xml | Trivial | documentation | Rahul Padmanabhan | Rahul Padmanabhan
YARN-9194 | Invalid event: REGISTERED and LAUNCH_FAILED at FAILED, and NullPointerException happens in RM while shutdown a NM | Critical | . | lujie | lujie
YARN-9204 | RM fails to start if absolute resource is specified for partition capacity in CS queues | Blocker | yarn | Jiandan Yang | Jiandan Yang
HDFS-14207 | ZKFC should catch exception when ha configuration missing | Major | hdfs | Fei Hui | Fei Hui
HDFS-14218 | EC: Ls -e throw NPE when directory ec policy is disabled | Major | . | Surendra Singh Lilhore | Ayush Saxena
YARN-9210 | RM nodes web page can not display node info | Blocker | yarn | Jiandan Yang | Jiandan Yang
YARN-9205 | When using custom resource type, application will fail to run due to the CapacityScheduler throws InvalidResourceRequestException(GREATER_THEN_MAX_ALLOCATION) | Critical | . | Zhankun Tang | Zhankun Tang
YARN-8961 | [UI2] Flow Run End Time shows ‘Invalid date’ | Major | . | Charan Hebri | Akhil PB
HADOOP-16065 | -Ddynamodb should be -Ddynamo in AWS SDK testing document | Minor | documentation | Akira Ajisaka | Akira Ajisaka
HDFS-14228 | Incorrect getSnapshottableDirListing() javadoc | Major | snapshots | Wei-Chiu Chuang | Dinesh Chitlangia
YARN-9222 | Print launchTime in ApplicationSummary | Major | . | Jonathan Hung | Jonathan Hung
YARN-8901 | Restart “NEVER” policy does not work with component dependency | Critical | . | Yesha Vora | Suma Shivaprasad
YARN-9237 | NM should ignore sending finished apps to RM during RM fail-over | Major | yarn | Jiandan Yang | Jiandan Yang
YARN-6616 | YARN AHS shows submitTime for jobs same as startTime | Minor | . | Prabhu Joseph | Prabhu Joseph
YARN-9099 | GpuResourceAllocator#getReleasingGpus calculates number of GPUs in a wrong way | Major | . | Szilard Nemeth | Szilard Nemeth
YARN-9262 | TestRMAppAttemptTransitions is failing with an NPE | Critical | resourcemanager | Sunil Govindan | lujie
HDFS-14232 | libhdfs is not included in binary tarball | Critical | build, libhdfs | Akira Ajisaka | Akira Ajisaka
MAPREDUCE-7177 | Disable speculative execution in TestDFSIO | Major | . | Kihwal Lee | Zhaohui Xin
HADOOP-16076 | SPNEGO+SSL Client Connections with HttpClient Broken | Major | build, security | Larry McCay | Larry McCay
HADOOP-16074 | WASB: Update container not found error code | Major | fs/azure | Da Zhou | Da Zhou
YARN-8498 | Yarn NodeManager OOM Listener Fails Compilation on Ubuntu 18.04 | Blocker | . | Jack Bearden | Ayush Saxena
YARN-9206 | RMServerUtils does not count SHUTDOWN as an accepted state | Major | . | Kuhu Shukla | Kuhu Shukla
HADOOP-16032 | Distcp It should clear sub directory ACL before applying new ACL on it. | Major | tools/distcp | Ranith Sardar | Ranith Sardar
HDFS-14140 | JournalNodeSyncer authentication is failing in secure cluster | Major | journal-node, security | Surendra Singh Lilhore | Surendra Singh Lilhore
YARN-9257 | Distributed Shell client throws a NPE for a non-existent queue | Major | distributed-shell | Charan Hebri | Charan Hebri
YARN-8761 | Service AM support for decommissioning component instances | Major | . | Billie Rinaldi | Billie Rinaldi
HDFS-14266 | EC : Fsck -blockId shows null for EC Blocks if One Block Is Not Available. | Major | . | Harshakiran Reddy | Ayush Saxena
HDFS-14274 | EC: NPE While Listing EC Policy For A Directory Following Replication Policy. | Major | erasure-coding | Souryakanta Dwivedy | Ayush Saxena
HDFS-14263 | Remove unnecessary block file exists check from FsDatasetImpl#getBlockInputStream() | Major | datanode | Surendra Singh Lilhore | Surendra Singh Lilhore
YARN-7761 | [UI2] Clicking ‘master container log’ or ‘Link’ next to ‘log’ under application’s appAttempt goes to Old UI’s Log link | Major | yarn-ui-v2 | Sumana Sathish | Akhil PB
YARN-9295 | [UI2] Fix label typo in Cluster Overview page | Trivial | yarn-ui-v2 | Charan Hebri | Charan Hebri
YARN-9308 | fairscheduler-statedump.log gets generated regardless of service again after the merge of HDFS-7240 | Blocker | fairscheduler, scheduler | Akira Ajisaka | Wilfred Spiegelenburg
YARN-9284 | Fix the unit of yarn.service.am-resource.memory in the document | Minor | documentation, yarn-native-services | Masahiro Tanaka | Masahiro Tanaka
YARN-9283 | Javadoc of LinuxContainerExecutor#addSchedPriorityCommand has a wrong property name as reference | Minor | documentation | Szilard Nemeth | Adam Antal
YARN-9286 | [Timeline Server] Sorting based on FinalStatus shows pop-up message | Minor | timelineserver | Nallasivan | Bilwa S T
HDFS-14081 | hdfs dfsadmin -metasave metasave_test results NPE | Major | hdfs | Shweta | Shweta
HADOOP-15813 | Enable more reliable SSL connection reuse | Major | common | Daryn Sharp | Daryn Sharp
HDFS-14216 | NullPointerException happens in NamenodeWebHdfs | Critical | . | lujie | lujie
HADOOP-16105 | WASB in secure mode does not set connectingUsingSAS | Major | fs/azure | Steve Loughran | Steve Loughran
YARN-9238 | Avoid allocating opportunistic containers to previous/removed/non-exist application attempt | Critical | . | lujie | lujie
YARN-9118 | Handle exceptions with parsing user defined GPU devices in GpuDiscoverer | Major | . | Szilard Nemeth | Szilard Nemeth
YARN-9317 | Avoid repeated YarnConfiguration#timelineServiceV2Enabled check | Major | . | Bibin A Chundatt | Prabhu Joseph
YARN-9213 | RM Web UI v1 does not show custom resource allocations for containers page | Major | . | Szilard Nemeth | Szilard Nemeth
YARN-9329 | updatePriority is blocked when using FairScheduler | Major | . | Jiandan Yang | Jiandan Yang
YARN-9248 | RMContainerImpl:Invalid event: ACQUIRED at KILLED | Major | . | lujie | lujie
HADOOP-16018 | DistCp won’t reassemble chunks when blocks per chunk > 0 | Major | tools/distcp | Kai Xie | Kai Xie
YARN-9334 | YARN Service Client does not work with SPNEGO when knox is configured | Major | yarn-native-services | Tarun Parimi | Billie Rinaldi
HDFS-14305 | Serial number in BlockTokenSecretManager could overlap between different namenodes | Major | namenode, security | Chao Sun | He Xiaoqiao
HDFS-14314 | fullBlockReportLeaseId should be reset after registering to NN | Critical | datanode | star | star
YARN-8803 | [UI2] Show flow runs in the order of recently created time in graph widgets | Major | yarn-ui-v2 | Akhil PB | Akhil PB
HDFS-14317 | Standby does not trigger edit log rolling when in-progress edit log tailing is enabled | Critical | . | Ekanth Sethuramalingam | Ekanth Sethuramalingam
HDFS-14333 | Datanode fails to start if any disk has errors during Namenode registration | Major | datanode | Stephen O’Donnell | Stephen O’Donnell
HADOOP-16192 | CallQueue backoff bug fixes: doesn’t perform backoff when add() is used, and doesn’t update backoff when refreshed | Major | ipc | Erik Krogen | Erik Krogen
HDFS-14037 | Fix SSLFactory truststore reloader thread leak in URLConnectionFactory | Major | hdfs-client, webhdfs | Takanobu Asanuma | Takanobu Asanuma
HADOOP-16225 | Fix links to the developer mailing lists in DownstreamDev.md | Minor | documentation | Akira Ajisaka | Wanqiang Ji
HADOOP-16226 | new Path(String str) does not remove all the trailing slashes of str | Minor | fs | Akira Ajisaka | Akira Ajisaka
HADOOP-16232 | Fix errors in the checkstyle configration xmls | Major | build | Akira Ajisaka | Wanqiang Ji
HDFS-14389 | getAclStatus returns incorrect permissions and owner when an iNodeAttributeProvider is configured | Major | namenode | Stephen O’Donnell | Stephen O’Donnell
HDFS-14407 | Fix misuse of SLF4j logging API in DatasetVolumeChecker#checkAllVolumes | Minor | . | Wanqiang Ji | Wanqiang Ji
YARN-9413 | Queue resource leak after app fail for CapacityScheduler | Major | capacityscheduler | Tao Yang | Tao Yang
HADOOP-14635 | Javadoc correction for AccessControlList#buildACL | Minor | documentation | Bibin A Chundatt | Yeliang Cang
HADOOP-14544 | DistCp documentation for command line options is misaligned. | Minor | documentation | Chris Nauroth | Masatake Iwasaki
HDFS-10477 | Stop decommission a rack of DataNodes caused NameNode fail over to standby | Major | namenode | yunjiong zhao | yunjiong zhao
YARN-9487 | NodeManager native build shouldn’t link against librt on macOS | Major | nodemanager | Siyao Meng | Siyao Meng
YARN-6695 | Race condition in RM for publishing container events vs appFinished events causes NPE | Critical | . | Rohith Sharma K S | Prabhu Joseph
YARN-8622 | NodeManager native build fails due to getgrouplist not found on macOS | Major | nodemanager | Ewan Higgs | Siyao Meng
HADOOP-16265 | Configuration#getTimeDuration is not consistent between default value and manual settings. | Major | . | star | star
HDFS-13677 | Dynamic refresh Disk configuration results in overwriting VolumeMap | Blocker | . | xuzq | xuzq
YARN-9285 | RM UI progress column is of wrong type | Minor | yarn | Ahmed Hussein | Ahmed Hussein
HADOOP-16278 | With S3A Filesystem, Long Running services End up Doing lot of GC and eventually die | Major | common, hadoop-aws, metrics | Rajat Khandelwal | Rajat Khandelwal
YARN-9504 | [UI2] Fair scheduler queue view page does not show actual capacity | Major | fairscheduler, yarn-ui-v2 | Zoltan Siegl | Zoltan Siegl
YARN-9519 | TFile log aggregation file format is not working for yarn.log-aggregation.TFile.remote-app-log-dir config | Major | log-aggregation | Adam Antal | Adam Antal
YARN-9508 | YarnConfiguration areNodeLabel enabled is costly in allocation flow | Critical | . | Bibin A Chundatt | Bilwa S T
HADOOP-16247 | NPE in FsUrlConnection | Major | hdfs-client | Karthik Palanisamy | Karthik Palanisamy
HADOOP-16248 | MutableQuantiles leak memory under heavy load | Major | metrics | Alexis Daboville | Alexis Daboville
HDFS-14323 | Distcp fails in Hadoop 3.x when 2.x source webhdfs url has special characters in hdfs file path | Major | webhdfs | Srinivasu Majeti | Srinivasu Majeti
MAPREDUCE-7205 | Treat container scheduler kill exit code as a task attempt killing event | Major | applicationmaster, mr-am, mrv2 | Wanqiang Ji | Wanqiang Ji
HDFS-14500 | NameNode StartupProgress continues to report edit log segments after the LOADING_EDITS phase is finished | Major | namenode | Erik Krogen | Erik Krogen
YARN-9500 | Fix typos in ResourceModel.md | Trivial | documentation | leiqiang | leiqiang
HADOOP-16331 | Fix ASF License check in pom.xml | Major | . | Wanqiang Ji | Akira Ajisaka
YARN-9542 | Fix LogsCLI guessAppOwner ignores custom file format suffix | Minor | log-aggregation | Prabhu Joseph | Prabhu Joseph
HDFS-14512 | ONE_SSD policy will be violated while write data with DistributedFileSystem.create(….favoredNodes) | Major | . | Shen Yinjie | Ayush Saxena
HADOOP-16334 | Fix yetus-wrapper not working when HADOOP_YETUS_VERSION >= 0.9.0 | Major | yetus | Wanqiang Ji | Wanqiang Ji
HDFS-14521 | Suppress setReplication logging. | Major | . | Kihwal Lee | Kihwal Lee
YARN-9507 | Fix NPE in NodeManager#serviceStop on startup failure | Minor | . | Bilwa S T | Bilwa S T
YARN-8947 | [UI2] Active User info missing from UI2 | Major | yarn-ui-v2 | Akhil PB | Akhil PB
YARN-8906 | [UI2] NM hostnames not displayed correctly in Node Heatmap Chart | Major | . | Charan Hebri | Akhil PB
YARN-9580 | Fulfilled reservation information in assignment is lost when transferring in ParentQueue#assignContainers | Major | capacityscheduler | Tao Yang | Tao Yang
YARN-8625 | Aggregate Resource Allocation for each job is not present in ATS | Major | ATSv2 | Prabhu Joseph | Prabhu Joseph
HADOOP-16345 | Potential NPE when instantiating FairCallQueue metrics | Major | ipc | Erik Krogen | Erik Krogen
YARN-9594 | Fix missing break statement in ContainerScheduler#handle | Major | . | lujie | lujie
YARN-9565 | RMAppImpl#ranNodes not cleared on FinalTransition | Major | . | Bibin A Chundatt | Bilwa S T
YARN-9547 | ContainerStatusPBImpl default execution type is not returned | Major | . | Bibin A Chundatt | Bilwa S T
HDFS-13231 | Extend visualization for Decommissioning, Maintenance Mode under Datanode tab in the NameNode UI | Major | datanode, namenode | Haibo Yan | Stephen O’Donnell
HDFS-14535 | The default 8KB buffer in requestFileDescriptors#BufferedOutputStream is causing lots of heap allocation in HBase when using short-circut read | Major | hdfs-client | Zheng Hu | Zheng Hu
HDFS-13730 | BlockReaderRemote.sendReadResult throws NPE | Major | hdfs-client | Wei-Chiu Chuang | Yuanbo Liu
YARN-9584 | Should put initializeProcessTrees method call before get pid | Critical | nodemanager | Wanqiang Ji | Wanqiang Ji
HDFS-14010 | Pass correct DF usage to ReservedSpaceCalculator builder | Minor | . | Lukas Majercak | Lukas Majercak
HDFS-14078 | Admin helper fails to prettify NullPointerExceptions | Major | . | Elek, Marton | Elek, Marton
HDFS-14101 | Random failure of testListCorruptFilesCorruptedBlock | Major | test | Kihwal Lee | Zsolt Venczel
HDFS-14465 | When the Block expected replications is larger than the number of DataNodes, entering maintenance will never exit. | Major | . | Yicong Cai | Yicong Cai
HDFS-13893 | DiskBalancer: no validations for Disk balancer commands | Major | diskbalancer | Harshakiran Reddy | Lokesh Jain
YARN-9209 | When nodePartition is not set in Placement Constraints, containers are allocated only in default partition | Major | capacity scheduler, scheduler | Tarun Parimi | Tarun Parimi
HDFS-12487 | FsDatasetSpi.isValidBlock() lacks null pointer check inside and neither do the callers | Major | balancer & mover, diskbalancer | liumi | liumi
HDFS-14074 | DataNode runs async disk checks maybe throws NullPointerException, and DataNode failed to register to NameSpace. | Major | hdfs | guangyi lu | guangyi lu
HDFS-14541 | When evictableMmapped or evictable size is zero, do not throw NoSuchElementException | Major | hdfs-client, performance | Zheng Hu | Lisheng Sun
HDFS-14598 | Findbugs warning caused by HDFS-12487 | Minor | diskbalancer | Wei-Chiu Chuang | He Xiaoqiao
YARN-9639 | DecommissioningNodesWatcher cause memory leak | Blocker | . | Bibin A Chundatt | Bilwa S T
YARN-9581 | Fix WebAppUtils#getRMWebAppURLWithScheme ignores rm2 | Major | client | Prabhu Joseph | Prabhu Joseph
YARN-9327 | Improve synchronisation in ProtoUtils#convertToProtoFormat block | Critical | . | Bibin A Chundatt | Bibin A Chundatt
YARN-9655 | AllocateResponse in FederationInterceptor lost applicationPriority | Major | federation | hunshenshi | hunshenshi
HADOOP-16385 | Namenode crashes with “RedundancyMonitor thread received Runtime exception” | Major | . | krishna reddy | Ayush Saxena
YARN-9644 | First RMContext object is always leaked during switch over | Blocker | . | Bibin A Chundatt | Bibin A Chundatt
HDFS-14629 | Property value Hard Coded in DNConf.java | Trivial | . | hemanthboyina | hemanthboyina
YARN-9557 | Application fails in diskchecker when ReadWriteDiskValidator is configured. | Critical | nodemanager | Anuruddh Nayak | Bilwa S T
HDFS-12703 | Exceptions are fatal to decommissioning monitor | Critical | namenode | Daryn Sharp | He Xiaoqiao
HDFS-12748 | NameNode memory leak when accessing webhdfs GETHOMEDIRECTORY | Major | hdfs | Jiandan Yang | Weiwei Yang
YARN-9625 | UI2 - No link to a queue on the Queues page for Fair Scheduler | Major | . | Charan Hebri | Zoltan Siegl
HDFS-14466 | Add a regression test for HDFS-14323 | Minor | fs, test, webhdfs | Yuya Ebihara | Masatake Iwasaki
YARN-9235 | If linux container executor is not set for a GPU cluster GpuResourceHandlerImpl is not initialized and NPE is thrown | Major | yarn | Antal Bálint Steinbach | Adam Antal
YARN-9626 | UI2 - Fair scheduler queue apps page issues | Major | . | Charan Hebri | Zoltan Siegl
YARN-9645 | Fix Invalid event FINISHED_CONTAINERS_PULLED_BY_AM at NEW on NM restart | Major | . | krishna reddy | Bilwa S T
YARN-9682 | Wrong log message when finalizing the upgrade | Trivial | . | kyungwan nam | kyungwan nam
HADOOP-16440 | Distcp can not preserve timestamp with -delete option | Major | . | ludun | ludun
MAPREDUCE-7076 | TestNNBench#testNNBenchCreateReadAndDelete failing in our internal build | Minor | test | Rushabh S Shah | kevin su
HADOOP-16443 | Improve help text for setfacl –set option | Minor | fs | Stephen O’Donnell | Stephen O’Donnell
YARN-9668 | UGI conf doesn’t read user overridden configurations on RM and NM startup | Major | . | Jonathan Hung | Jonathan Hung
HADOOP-9844 | NPE when trying to create an error message response of SASL RPC | Major | ipc | Steve Loughran | Steve Loughran
HADOOP-16245 | Enabling SSL within LdapGroupsMapping can break system SSL configs | Major | common, security | Erik Krogen | Erik Krogen
HDFS-14429 | Block remain in COMMITTED but not COMPLETE caused by Decommission | Major | . | Yicong Cai | Yicong Cai
HADOOP-16435 | RpcMetrics should not be retained forever | Critical | rpc-server | Zoltan Haindrich | Zoltan Haindrich
YARN-9596 | QueueMetrics has incorrect metrics when labelled partitions are involved | Major | capacity scheduler | Muhammad Samir Khan | Muhammad Samir Khan
MAPREDUCE-7225 | Fix broken current folder expansion during MR job start | Major | mrv2 | Adam Antal | Peter Bacsko
HDFS-13529 | Fix default trash policy emptier trigger time correctly | Major | namenode | He Xiaoqiao | He Xiaoqiao
HADOOP-15681 | AuthenticationFilter should generate valid date format for Set-Cookie header regardless of default Locale | Minor | security | Cao Manh Dat | Cao Manh Dat
HDFS-14685 | DefaultAuditLogger doesn’t print CallerContext | Major | hdfs | xuzq | xuzq
HDFS-14462 | WebHDFS throws “Error writing request body to server” instead of DSQuotaExceededException | Major | webhdfs | Erik Krogen | Simbarashe Dzinamarira
HDFS-14691 | Wrong usage hint for hadoop fs command test | Minor | hdfs | Jianfei Jiang | Jianfei Jiang
HDFS-14557 | JournalNode error: Can’t scan a pre-transactional edit log | Major | ha | Wei-Chiu Chuang | Stephen O’Donnell
HDFS-14692 | Upload button should not encode complete url | Major | . | Lokesh Jain | Lokesh Jain
HADOOP-15908 | hadoop-build-tools jar is downloaded from remote repository instead of using from local | Minor | build | Oleksandr Shevchenko | Oleksandr Shevchenko
HDFS-14631 | The DirectoryScanner doesn’t fix the wrongly placed replica. | Major | . | Jinglun | Jinglun
YARN-9685 | NPE when rendering the info table of leaf queue in non-accessible partitions | Major | capacityscheduler | Tao Yang | Tao Yang
HDFS-14459 | ClosedChannelException silently ignored in FsVolumeList.addBlockPool() | Major | datanode | Stephen O’Donnell | Stephen O’Donnell
HDFS-13359 | DataXceiver hung due to the lock in FsDatasetImpl#getBlockInputStream | Major | datanode | Yiqun Lin | Yiqun Lin
YARN-9451 | AggregatedLogsBlock shows wrong NM http port | Minor | nodemanager | Prabhu Joseph | Prabhu Joseph
YARN-9723 | ApplicationPlacementContext is not required for terminated jobs during recovery | Major | resourcemanager | Prabhu Joseph | Prabhu Joseph
HDFS-12914 | Block report leases cause missing blocks until next report | Critical | namenode | Daryn Sharp | Santosh Marella
HDFS-14148 | HDFS OIV ReverseXML SnapshotSection parser throws exception when there are more than one snapshottable directory | Major | hdfs | Siyao Meng | Siyao Meng
HDFS-14595 | HDFS-11848 breaks API compatibility | Blocker | . | Wei-Chiu Chuang | Siyao Meng
HDFS-14423 | Percent (%) and plus (+) characters no longer work in WebHDFS | Major | webhdfs | Jing Wang | Masatake Iwasaki
MAPREDUCE-7230 | TestHSWebApp.testLogsViewSingle fails | Major | jobhistoryserver, test | Prabhu Joseph | Prabhu Joseph
YARN-9749 | TestAppLogAggregatorImpl#testDFSQuotaExceeded fails on trunk | Major | log-aggregation, test | Peter Bacsko | Adam Antal
HDFS-14687 | Standby Namenode never come out of safemode when EC files are being written. | Critical | ec, namenode | Surendra Singh Lilhore | Surendra Singh Lilhore
HDFS-13101 | Yet another fsimage corruption related to snapshot | Major | snapshots | Yongjun Zhang | Shashikant Banerjee
HDFS-13201 | Fix prompt message in testPolicyAndStateCantBeNull | Minor | . | chencan | chencan
HDFS-14311 | Multi-threading conflict at layoutVersion when loading block pool storage | Major | rolling upgrades | Yicong Cai | Yicong Cai
HDFS-14582 | Failed to start DN with ArithmeticException when NULL checksum used | Major | datanode | Surendra Singh Lilhore | Surendra Singh Lilhore
YARN-9217 | Nodemanager will fail to start if GPU is misconfigured on the node or GPU drivers missing | Major | yarn | Antal Bálint Steinbach | Peter Bacsko
HADOOP-16494 | Add SHA-256 or SHA-512 checksum to release artifacts to comply with the release distribution policy | Blocker | build | Akira Ajisaka | Akira Ajisaka
YARN-9774 | Fix order of arguments for assertEquals in TestSLSUtils | Minor | test | Nikhil Navadiya | Nikhil Navadiya
HDFS-13596 | NN restart fails after RollingUpgrade from 2.x to 3.x | Blocker | hdfs | Hanisha Koneru | Fei Hui
HDFS-14396 | Failed to load image from FSImageFile when downgrade from 3.x to 2.x | Blocker | rolling upgrades | Fei Hui | Fei Hui
YARN-8917 | Absolute (maximum) capacity of level3+ queues is wrongly calculated for absolute resource | Critical | capacityscheduler | Tao Yang | Tao Yang
YARN-9642 | Fix Memory Leak in AbstractYarnScheduler caused by timer | Blocker | resourcemanager | Bibin A Chundatt | Bibin A Chundatt
HDFS-13977 | NameNode can kill itself if it tries to send too many txns to a QJM simultaneously | Major | namenode, qjm | Erik Krogen | Erik Krogen
HDFS-2470 | NN should automatically set permissions on dfs.namenode.*.dir | Major | namenode | Aaron T. Myers | Siddharth Wagle
YARN-9438 | launchTime not written to state store for running applications | Major | . | Jonathan Hung | Jonathan Hung
YARN-9640 | Slow event processing could cause too many attempt unregister events | Critical | . | Bibin A Chundatt | Bibin A Chundatt
HDFS-12212 | Options.Rename.To_TRASH is considered even when Options.Rename.NONE is specified | Major | namenode | Vinayakumar B | Vinayakumar B
YARN-9714 | ZooKeeper connection in ZKRMStateStore leaks after RM transitioned to standby | Major | resourcemanager | Tao Yang | Tao Yang
HDFS-8178 | QJM doesn’t move aside stale inprogress edits files | Major | qjm | Zhe Zhang | Istvan Fajth
HDFS-14706 | Checksums are not checked if block meta file is less than 7 bytes | Major | . | Stephen O’Donnell | Stephen O’Donnell
YARN-9797 | LeafQueue#activateApplications should use resourceCalculator#fitsIn | Blocker | . | Bibin A Chundatt | Bilwa S T
YARN-9785 | Fix DominantResourceCalculator when one resource is zero | Blocker | . | Bilwa S T | Bilwa S T
YARN-9718 | Yarn REST API, services endpoint remote command ejection | Major | . | Eric Yang | Eric Yang
HADOOP-16255 | ChecksumFS.Make FileSystem.rename(path, path, options) doesn’t rename checksum | Major | fs | Steve Loughran | Jungtaek Lim
YARN-9817 | Fix failing testcases due to not initialized AsyncDispatcher - ArithmeticException: / by zero | Major | test | Prabhu Joseph | Prabhu Joseph
YARN-9813 | RM does not start on JDK11 when UIv2 is enabled | Critical | resourcemanager, yarn | Adam Antal | Adam Antal
YARN-9820 | RM logs InvalidStateTransitionException when app is submitted | Critical | . | Rohith Sharma K S | Prabhu Joseph

### TESTS:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
YARN-8907 | Modify a logging message in TestCapacityScheduler | Trivial | . | Zhankun Tang | Zhankun Tang
YARN-8904 | TestRMDelegationTokens can fail in testRMDTMasterKeyStateOnRollingMasterKey | Minor | test | Wilfred Spiegelenburg | Wilfred Spiegelenburg
YARN-8944 | TestContainerAllocation.testUserLimitAllocationMultipleContainers failure after YARN-8896 | Minor | capacity scheduler | Wilfred Spiegelenburg | Wilfred Spiegelenburg
YARN-9263 | TestConfigurationNodeAttributesProvider fails after Mockito updated | Minor | . | Weiwei Yang | Weiwei Yang
YARN-9315 | TestCapacitySchedulerMetrics fails intermittently | Minor | capacity scheduler | Prabhu Joseph | Prabhu Joseph
YARN-9316 | TestPlacementConstraintsUtil#testInterAppConstraintsByAppID fails intermittently | Minor | capacity scheduler | Prabhu Joseph | Prabhu Joseph
YARN-9324 | TestSchedulingRequestContainerAllocation(Async) fails with junit-4.11 | Major | capacity scheduler | Prabhu Joseph | Prabhu Joseph
YARN-9325 | TestQueueManagementDynamicEditPolicy fails intermittent | Minor | capacity scheduler | Prabhu Joseph | Prabhu Joseph
HDFS-11950 | Disable libhdfs zerocopy test on Mac | Minor | libhdfs | John Zhuge | Akira Ajisaka

### SUB-TASKS:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
YARN-6989 | Ensure timeline service v2 codebase gets UGI from HttpServletRequest in a consistent way | Major | timelineserver | Vrushali C | Abhishek Modi
YARN-8834 | Provide Java client for fetching Yarn specific entities from TimelineReader | Critical | timelinereader | Rohith Sharma K S | Abhishek Modi
YARN-3879 | [Storage implementation] Create HDFS backing storage implementation for ATS reads | Major | timelineserver | Tsuyoshi Ozawa | Abhishek Modi
YARN-6098 | Add documentation for Delete Queue | Major | capacity scheduler, documentation | Naganarasimha G R | Suma Shivaprasad
YARN-8456 | Fix a configuration handling bug when user leave FPGA discover executable path configuration default but set OpenCL SDK path environment variable | Major | yarn | Zhankun Tang | Zhankun Tang
HADOOP-15868 | AliyunOSS: update document for properties of multiple part download, multiple part upload and directory copy | Major | fs/oss | wujinhu | wujinhu
YARN-8871 | Document behavior of YARN-5742 | Major | . | Vrushali C | Suma Shivaprasad
YARN-7754 | [Atsv2] Update document for running v1 and v2 TS | Major | . | Rohith Sharma K S | Suma Shivaprasad
HDFS-14047 | [libhdfs++] Fix hdfsGetLastExceptionRootCause bug in test_libhdfs_threaded.c | Major | libhdfs, native | Anatoli Shein | Anatoli Shein
YARN-8988 | Reduce the verbose log on RM heartbeat path when distributed node-attributes is enabled | Major | . | Weiwei Yang | Tao Yang
HADOOP-15846 | ABFS: fix mask related bugs in setAcl, modifyAclEntries and removeAclEntries. | Major | fs/azure | Thomas Marquardt | junhua gu
HADOOP-15812 | ABFS: Improve AbfsRestOperationException format to ensure full msg can be displayed on console | Major | fs/azure | Da Zhou | Da Zhou
YARN-8987 | Usability improvements node-attributes CLI | Critical | . | Weiwei Yang | Bibin A Chundatt
HADOOP-15876 | Use keySet().removeAll() to remove multiple keys from Map in AzureBlobFileSystemStore | Minor | fs/azure | Ted Yu | Da Zhou
HADOOP-15917 | AliyunOSS: fix incorrect ReadOps and WriteOps in statistics | Major | fs/oss | wujinhu | wujinhu
YARN-8303 | YarnClient should contact TimelineReader for application/attempt/container report | Critical | . | Rohith Sharma K S | Abhishek Modi
HADOOP-15872 | ABFS: Update to target 2018-11-09 REST version for ADLS Gen 2 | Major | fs/azure | Thomas Marquardt | junhua gu
HADOOP-15940 | ABFS: For HNS account, avoid unnecessary get call when doing Rename | Major | fs/azure | Da Zhou | Da Zhou
YARN-8986 | publish all exposed ports to random ports when using bridge network | Minor | yarn | dockerzhang | dockerzhang
HADOOP-15932 | Oozie unable to create sharelib in s3a filesystem | Critical | fs, fs/s3 | Soumitra Sulav | Steve Loughran
YARN-9034 | ApplicationCLI should have option to take clusterId | Major | . | Rohith Sharma K S | Rohith Sharma K S
HDFS-13713 | Add specification of Multipart Upload API to FS specification, with contract tests | Blocker | fs, test | Steve Loughran | Ewan Higgs
HADOOP-15968 | ABFS: add try catch for UGI failure when initializing ABFS | Major | fs/azure | Da Zhou | Da Zhou
HADOOP-15969 | ABFS: getNamespaceEnabled can fail blocking user access thru ACLs | Major | fs/azure | Da Zhou | Da Zhou
HADOOP-15972 | ABFS: reduce list page size to to 500 | Major | fs/azure | Da Zhou | Da Zhou
HADOOP-16004 | ABFS: Convert 404 error response in AbfsInputStream and AbfsOutPutStream to FileNotFoundException | Major | fs/azure | Da Zhou | Da Zhou
YARN-9126 | Container reinit always fails in branch-3.2 and trunk | Major | . | Eric Yang | Chandni Singh
YARN-8925 | Updating distributed node attributes only when necessary | Major | resourcemanager | Tao Yang | Tao Yang
HADOOP-16009 | Replace the url of the repository in Apache Hadoop source code | Major | documentation | Akira Ajisaka | Akira Ajisaka
HADOOP-15323 | AliyunOSS: Improve copy file performance for AliyunOSSFileSystemStore | Major | fs/oss | wujinhu | wujinhu
YARN-6149 | Allow port range to be specified while starting NM Timeline collector manager. | Major | timelineserver | Varun Saxena | Abhishek Modi
HADOOP-16040 | ABFS: Bug fix for tolerateOobAppends configuration | Major | fs/azure | Da Zhou | Da Zhou
HADOOP-15975 | ABFS: remove timeout check for DELETE and RENAME | Major | fs/azure | Da Zhou | Da Zhou
HADOOP-15662 | ABFS: Better exception handling of DNS errors | Major | fs/azure | Thomas Marquardt | Da Zhou
HADOOP-16045 | Don’t run TestDU on Windows | Trivial | common, test | Lukas Majercak | Lukas Majercak
HADOOP-16044 | ABFS: Better exception handling of DNS errors followup | Major | . | Da Zhou | Da Zhou
HADOOP-16048 | ABFS: Fix Date format parser | Major | fs/azure | Da Zhou | Da Zhou
YARN-8101 | Add UT to verify node-attributes in RM nodes rest API | Minor | resourcemanager, restapi | Weiwei Yang | Prabhu Joseph
HADOOP-16041 | UserAgent string for ABFS | Major | fs/azure | Shweta | Shweta
HADOOP-16079 | Token.toString faulting if any token listed can’t load. | Blocker | security | Steve Loughran | Steve Loughran
YARN-9275 | Add link to NodeAttributes doc in PlacementConstraints document | Minor | documentation | Weiwei Yang | Masatake Iwasaki
YARN-6735 | Have a way to turn off container metrics from NMs | Major | timelineserver | Vrushali C | Abhishek Modi
HADOOP-15954 | ABFS: Enable owner and group conversion for MSI and login user using OAuth | Major | fs/azure | junhua gu | Da Zhou
YARN-9253 | Add UT to verify Placement Constraint in Distributed Shell | Major | . | Prabhu Joseph | Prabhu Joseph
YARN-9252 | Allocation Tag Namespace support in Distributed Shell | Major | distributed-shell | Prabhu Joseph | Prabhu Joseph
YARN-8555 | Parameterize TestSchedulingRequestContainerAllocation(Async) to cover both PC handler options | Minor | . | Weiwei Yang | Prabhu Joseph
YARN-9293 | Optimize MockAMLauncher event handling | Major | . | Bibin A Chundatt | Bibin A Chundatt
HADOOP-16104 | Wasb tests to downgrade to skip when test a/c is namespace enabled | Major | fs/azure, test | Steve Loughran | Masatake Iwasaki
YARN-9258 | Support to specify allocation tags without constraint in distributed shell CLI | Major | distributed-shell | Prabhu Joseph | Prabhu Joseph
HADOOP-16136 | ABFS: Should only transform username to short name | Major | . | Da Zhou | Da Zhou
YARN-5336 | Limit the flow name size & consider cleanup for hex chars | Major | timelineserver | Vrushali C | Sushil Ks
YARN-3841 | [Storage implementation] Adding retry semantics to HDFS backing storage | Major | timelineserver | Tsuyoshi Ozawa | Abhishek Modi
HADOOP-16169 | ABFS: Bug fix for getPathProperties | Major | fs/azure | Da Zhou | Da Zhou
HADOOP-16109 | Parquet reading S3AFileSystem causes EOF | Blocker | fs/s3 | Dave Christianson | Steve Loughran
HADOOP-15625 | S3A input stream to use etags/version number to detect changed source files | Major | fs/s3 | Brahma Reddy Battula | Ben Roling
HADOOP-16124 | Extend documentation in testing.md about endpoint constants | Trivial | hadoop-aws | Adam Antal | Adam Antal
HADOOP-16191 | AliyunOSS: improvements for copyFile/copyDirectory and logging | Major | fs/oss | wujinhu | wujinhu
YARN-9387 | Update document for ATS HBase Custom tablenames (-entityTableName) | Critical | ATSv2 | Prabhu Joseph | Prabhu Joseph
YARN-9389 | FlowActivity and FlowRun table prefix is wrong | Minor | ATSv2 | Prabhu Joseph | Prabhu Joseph
YARN-9391 | Disable PATH variable to be passed to Docker container | Major | . | Eric Yang | Jim Brennan
HADOOP-16058 | S3A tests to include Terasort | Major | fs/s3, test | Steve Loughran | Steve Loughran
HADOOP-16220 | Add findbugs ignores for unjustified issues during update to guava to 27.0-jre in hadoop-project | Major | . | Gabor Bota | Gabor Bota
YARN-9418 | ATSV2 /apps/appId/entities/YARN_CONTAINER rest api does not show metrics | Critical | ATSv2 | Prabhu Joseph | Prabhu Joseph
HADOOP-16233 | S3AFileStatus to declare that isEncrypted() is always true | Minor | fs/s3 | Steve Loughran | Steve Loughran
YARN-9303 | Username splits won’t help timelineservice.app_flow table | Major | ATSv2 | Prabhu Joseph | Prabhu Joseph
YARN-9382 | Publish container killed, paused and resumed events to ATSv2. | Major | . | Abhishek Modi | Abhishek Modi
YARN-9335 | [atsv2] Restrict the number of elements held in timeline collector when backend is unreachable for async calls | Major | . | Vrushali C | Abhishek Modi
HADOOP-16269 | ABFS: add listFileStatus with StartFrom | Major | fs/azure | Da Zhou | Da Zhou
HADOOP-16251 | ABFS: add FSMainOperationsBaseTest | Major | fs/azure | Da Zhou | Da Zhou
HADOOP-16306 | AliyunOSS: Remove temporary files when upload small files to OSS | Major | fs/oss | wujinhu | wujinhu
YARN-7537 | [Atsv2] load hbase configuration from filesystem rather than URL | Major | . | Rohith Sharma K S | Prabhu Joseph
HDFS-14553 | Make queue size of BlockReportProcessingThread configurable | Major | namenode | He Xiaoqiao | He Xiaoqiao
HADOOP-16211 | Update guava to 27.0-jre in hadoop-project branch-3.2 | Major | . | Gabor Bota | Gabor Bota
YARN-8499 | ATS v2 Generic TimelineStorageMonitor | Major | ATSv2 | Sunil Govindan | Prabhu Joseph
YARN-9374 | HBaseTimelineWriterImpl sync writes has to avoid thread blocking if storage down | Major | ATSv2 | Prabhu Joseph | Prabhu Joseph
HADOOP-16401 | ABFS: port Azure doc to 3.2 branch | Major | fs/azure | Da Zhou | Masatake Iwasaki
HDFS-14034 | Support getQuotaUsage API in WebHDFS | Major | fs, webhdfs | Erik Krogen | Chao Sun
YARN-9765 | SLS runner crashes when run with metrics turned off. | Major | . | Abhishek Modi | Abhishek Modi
HDFS-14674 | [SBN read] Got an unexpected txid when tail editlog | Blocker | . | wangzhaohui | wangzhaohui
YARN-9775 | RMWebServices /scheduler-conf GET returns all hadoop configurations for ZKConfigurationStore | Major | restapi | Prabhu Joseph | Prabhu Joseph
HDFS-14779 | Fix logging error in TestEditLog#testMultiStreamsLoadEditWithConfMaxTxns | Major | . | Jonathan Hung | Jonathan Hung
YARN-9804 | Update ATSv2 document for latest feature supports | Blocker | . | Rohith Sharma K S | Rohith Sharma K S
YARN-9821 | NM hangs at serviceStop when ATSV2 Backend Hbase is Down | Major | ATSv2 | Prabhu Joseph | Prabhu Joseph

### OTHER:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
HADOOP-15851 | Disable wildfly logs to the console | Major | fs/azure | Vishwajeet Dusane | Vishwajeet Dusane
HDFS-12729 | Document special paths in HDFS | Major | documentation | Chris Douglas | Masatake Iwasaki
YARN-9191 | Add cli option in DS to support enforceExecutionType in resource requests. | Major | . | Abhishek Modi | Abhishek Modi
HADOOP-16037 | DistCp: Document usage of Sync (-diff option) in detail | Major | documentation, tools/distcp | Siyao Meng | Siyao Meng
HADOOP-16263 | Update BUILDING.txt with macOS native build instructions | Minor | . | Siyao Meng | Siyao Meng
YARN-9559 | Create AbstractContainersLauncher for pluggable ContainersLauncher logic | Major | . | Jonathan Hung | Jonathan Hung
YARN-9796 | Fix ASF license issue in branch-3.2 | Blocker | . | Rohith Sharma K S | Prabhu Joseph