##### 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
- Native Libraries
- Proxy User
- Rack Awareness
- Secure Mode
- Service Level Authorization
- HTTP Authentication
- Credential Provider API
- Hadoop KMS
- Tracing
- Unix Shell Guide

##### 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
- Using CGroups
- Secure Containers
- Registry
- 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

##### Submarine

- Index
- QuickStart
- Examples

##### Hadoop Compatible File Systems

- Aliyun OSS
- Amazon S3
- Azure Blob Storage
- Azure Data Lake Storage
- OpenStack Swift

##### Auth

- Overview
- Examples
- Configuration
- Building

##### Tools

- Hadoop Streaming
- Hadoop Archives
- Hadoop Archive Logs
- DistCp
- GridMix
- Rumen
- Resource Estimator Service
- Scheduler Load Simulator
- Hadoop Benchmarking

##### 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 3.2.0 - Unreleased (as of 2018-09-02)

### INCOMPATIBLE CHANGES:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
YARN-6257 | CapacityScheduler REST API produces incorrect JSON - JSON object operationsInfo contains deplicate key | Minor | capacityscheduler | Tao Yang | Tao Yang
HADOOP-15146 | Remove DataOutputByteBuffer | Minor | common | BELUGA BEHR | BELUGA BEHR
YARN-8191 | Fair scheduler: queue deletion without RM restart | Major | fairscheduler | Gergo Repas | Gergo Repas
HADOOP-15495 | Upgrade common-lang version to 3.7 in hadoop-common-project and hadoop-tools | Major | . | Takanobu Asanuma | Takanobu Asanuma

### IMPORTANT ISSUES:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
HADOOP-14667 | Flexible Visual Studio support | Major | build | Allen Wittenauer | Allen Wittenauer

### NEW FEATURES:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
YARN-5764 | NUMA awareness support for launching containers | Major | nodemanager, yarn | Olasoji | Devaraj K
HDFS-13056 | Expose file-level composite CRCs in HDFS which are comparable across different instances/layouts | Major | datanode, distcp, erasure-coding, federation, hdfs | Dennis Huo | Dennis Huo
HDFS-13283 | Percentage based Reserved Space Calculation for DataNode | Major | datanode, hdfs | Lukas Majercak | Lukas Majercak
HDFS-13448 | HDFS Block Placement - Ignore Locality for First Block Replica | Minor | block placement, hdfs-client | BELUGA BEHR | BELUGA BEHR
YARN-7812 | Improvements to Rich Placement Constraints in YARN | Major | . | Arun Suresh |

### IMPROVEMENTS:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
YARN-8028 | Support authorizeUserAccessToQueue in RMWebServices | Major | . | Wangda Tan | Wangda Tan
HADOOP-15332 | Fix typos in hadoop-aws markdown docs | Minor | . | Gabor Bota | Gabor Bota
HADOOP-15330 | Remove jdk1.7 profile from hadoop-annotations module | Minor | . | Akira Ajisaka | fang zhenyi
HADOOP-15295 | Remove redundant logging related to tags from Configuration | Major | . | Ajay Kumar | Ajay Kumar
HADOOP-15339 | Support additional key/value propereties in JMX bean registration | Major | common | Elek, Marton | Elek, Marton
YARN-8077 | The vmemLimit parameter in ContainersMonitorImpl#isProcessTreeOverLimit is confusing | Trivial | nodemanager | Sen Zhao | Sen Zhao
HDFS-13357 | Improve AclException message “Invalid ACL: only directories may have a default ACL.” | Minor | . | Wei-Chiu Chuang | Gabor Bota
HADOOP-15342 | Update ADLS connector to use the current SDK version (2.2.7) | Major | fs/adl | Atul Sikaria | Atul Sikaria
YARN-8082 | Include LocalizedResource size information in the NM download log for localization | Minor | . | Kuhu Shukla | Kuhu Shukla
YARN-1151 | Ability to configure auxiliary services from HDFS-based JAR files | Major | nodemanager | john lilley | Xuan Gong
HDFS-13363 | Record file path when FSDirAclOp throws AclException | Minor | . | Wei-Chiu Chuang | Gabor Bota
MAPREDUCE-7069 | Add ability to specify user environment variables individually | Major | . | Jim Brennan | Jim Brennan
HDFS-13418 | NetworkTopology should be configurable when enable DFSNetworkTopology | Major | . | Tao Jie | Tao Jie
HDFS-13439 | Add test case for read block operation when it is moved | Major | . | Ajay Kumar | Ajay Kumar
HDFS-13462 | Add BIND_HOST configuration for JournalNode’s HTTP and RPC Servers | Major | hdfs, journal-node | Lukas Majercak | Lukas Majercak
HADOOP-15393 | Upgrade the version of commons-lang3 to 3.7 | Major | . | Takanobu Asanuma | Takanobu Asanuma
YARN-7966 | Remove method AllocationConfiguration#getQueueAcl and related unit tests | Minor | fairscheduler | Yufei Gu | Sen Zhao
YARN-8169 | Cleanup RackResolver.java | Minor | yarn | BELUGA BEHR | BELUGA BEHR
YARN-8185 | Improve log in DirectoryCollection constructor | Major | nodemanager | Yufei Gu | Yufei Gu
HDFS-13468 | Add erasure coding metrics into ReadStatistics | Major | erasure-coding | Lei (Eddy) Xu | Lei (Eddy) Xu
YARN-8140 | Improve log message when launch cmd is ran for stopped yarn service | Major | yarn-native-services | Yesha Vora | Eric Yang
MAPREDUCE-7086 | Add config to allow FileInputFormat to ignore directories when recursive=false | Major | . | Sergey Shelukhin | Sergey Shelukhin
HADOOP-15377 | Improve debug messages in MetricsConfig.java | Minor | common | BELUGA BEHR | BELUGA BEHR
HADOOP-15382 | Log kinit output in credential renewal thread | Minor | security | Wei-Chiu Chuang | Gabor Bota
YARN-8163 | Add support for Node Labels in opportunistic scheduling. | Major | . | Abhishek Modi | Abhishek Modi
HDFS-5926 | Documentation should clarify dfs.datanode.du.reserved impact from reserved disk capacity | Minor | documentation | Alexander Fahlke | Gabor Bota
MAPREDUCE-7093 | Use assertEquals instead of assertTrue(a == b) in TestMapReduceJobControlWithMocks | Minor | test | Akira Ajisaka | Abhishek Modi
HDFS-12981 | renameSnapshot a Non-Existent snapshot to itself should throw error | Minor | hdfs | Sailesh Patel | Kitti Nanasi
YARN-8239 | [UI2] Clicking on Node Manager UI under AM container info / App Attempt page goes to old RM UI | Major | yarn-ui-v2 | Sumana Sathish | Sunil Govindan
YARN-8260 | [UI2] Per-application tracking URL is no longer available in YARN UI2 | Major | yarn-ui-v2 | Sunil Govindan | Sunil Govindan
YARN-8201 | Skip stacktrace of few exception from ClientRMService | Minor | . | Bibin A Chundatt | Bilwa S T
HADOOP-15354 | hadoop-aliyun & hadoop-azure modules to mark hadoop-common as provided | Major | build, fs/azure, fs/oss | Steve Loughran | Steve Loughran
YARN-3610 | FairScheduler: Add steady-fair-shares to the REST API documentation | Major | documentation, fairscheduler | Karthik Kambatla | Ray Chiang
HADOOP-15441 | Log kms url and token service at debug level. | Minor | . | Wei-Chiu Chuang | Gabor Bota
HDFS-13544 | Improve logging for JournalNode in federated cluster | Major | federation, hdfs | Hanisha Koneru | Hanisha Koneru
YARN-8249 | Few REST api’s in RMWebServices are missing static user check | Critical | webapp, yarn | Sunil Govindan | Sunil Govindan
YARN-8123 | Skip compiling old hamlet package when the Java version is 10 or upper | Major | webapp | Akira Ajisaka | Dinesh Chitlangia
HDFS-13512 | WebHdfs getFileStatus doesn’t return ecPolicy | Major | . | Ajay Kumar | Ajay Kumar
HADOOP-15250 | Split-DNS MultiHomed Server Network Cluster Network IPC Client Bind Addr Wrong | Critical | ipc, net | Greg Senia | Ajay Kumar
HADOOP-15154 | Abstract new method assertCapability for StreamCapabilities testing | Minor | test | Xiao Chen | Zsolt Venczel
HADOOP-15457 | Add Security-Related HTTP Response Header in WEBUIs. | Major | . | Kanwaljeet Sachdev | Kanwaljeet Sachdev
HDFS-13589 | Add dfsAdmin command to query if “upgrade” is finalized | Major | hdfs | Hanisha Koneru | Hanisha Koneru
HADOOP-15486 | Make NetworkTopology#netLock fair | Major | net | Nanda kumar | Nanda kumar
HDFS-13493 | Reduce the HttpServer2 thread count on DataNodes | Major | datanode | Erik Krogen | Erik Krogen
HDFS-13598 | Reduce unnecessary byte-to-string transform operation in INodesInPath#toString | Minor | . | Yiqun Lin | Gabor Bota
YARN-8213 | Add Capacity Scheduler performance metrics | Critical | capacityscheduler, metrics | Weiwei Yang | Weiwei Yang
HADOOP-15477 | Make unjar in RunJar overrideable | Trivial | . | Johan Gustavsson | Johan Gustavsson
HDFS-13628 | Update Archival Storage doc for Provided Storage | Major | documentation | Takanobu Asanuma | Takanobu Asanuma
HADOOP-15449 | Increase default timeout of ZK session to avoid frequent NameNode failover | Critical | common | Karthik Palanisamy | Karthik Palanisamy
MAPREDUCE-7098 | Upgrade common-langs version to 3.7 in hadoop-mapreduce-project | Major | . | Takanobu Asanuma | Takanobu Asanuma
YARN-8333 | Load balance YARN services using RegistryDNS multiple A records | Major | yarn-native-services | Eric Yang | Eric Yang
HDFS-13440 | Log HDFS file name when client fails to connect | Trivial | . | Wei-Chiu Chuang | Gabor Bota
HADOOP-14783 | [KMS] Add missing configuration properties into kms-default.xml | Minor | kms | Wei-Chiu Chuang | Chetna Chaudhari
HDFS-13602 | Add checkOperation(WRITE) checks in FSNamesystem | Major | ha, namenode | Erik Krogen | Chao Sun
HDFS-13155 | BlockPlacementPolicyDefault.chooseTargetInOrder Not Checking Return Value for NULL | Minor | namenode | BELUGA BEHR | Zsolt Venczel
YARN-8389 | Improve the description of machine-list property in Federation docs | Major | documentation, federation | Takanobu Asanuma | Takanobu Asanuma
HADOOP-15507 | Add MapReduce counters about EC bytes read | Major | . | Xiao Chen | Xiao Chen
HDFS-13511 | Provide specialized exception when block length cannot be obtained | Major | . | Ted Yu | Gabor Bota
HADOOP-15512 | clean up Shell from JDK7 workarounds | Minor | common | Steve Loughran | Zsolt Venczel
HDFS-13659 | Add more test coverage for contentSummary for snapshottable path | Major | namenode, test | Wei-Chiu Chuang | Wei-Chiu Chuang
YARN-6677 | Preempt opportunistic containers when root container cgroup goes over memory limit | Major | nodemanager | Haibo Chen | Haibo Chen
YARN-8400 | Fix typos in YARN Federation documentation page | Trivial | . | Bibin A Chundatt | Giovanni Matteo Fumarola
HADOOP-15499 | Performance severe drop when running RawErasureCoderBenchmark with NativeRSRawErasureCoder | Major | . | Sammi Chen | Sammi Chen
YARN-8322 | Change log level when there is an IOException when the allocation file is loaded | Minor | fairscheduler | Haibo Chen | Szilard Nemeth
YARN-8321 | AllocationFileLoaderService. getAllocationFile() should be declared as VisibleForTest | Trivial | fairscheduler | Haibo Chen | Szilard Nemeth
HDFS-13653 | Make dfs.client.failover.random.order a per nameservice configuration | Major | federation | Ekanth Sethuramalingam | Ekanth Sethuramalingam
YARN-8363 | Upgrade commons-lang version to 3.7 in hadoop-yarn-project | Major | . | Takanobu Asanuma | Takanobu Asanuma
YARN-8325 | Miscellaneous QueueManager code clean up | Minor | fairscheduler | Haibo Chen | Szilard Nemeth
YARN-8394 | Improve data locality documentation for Capacity Scheduler | Major | . | Weiwei Yang | Weiwei Yang
HDFS-13641 | Add metrics for edit log tailing | Major | metrics | Chao Sun | Chao Sun
HDFS-13582 | Improve backward compatibility for HDFS-13176 (WebHdfs file path gets truncated when having semicolon (;) inside) | Major | . | Zsolt Venczel | Zsolt Venczel
HDFS-13686 | Add overall metrics for FSNamesystemLock | Major | hdfs, namenode | Lukas Majercak | Lukas Majercak
HDFS-13621 | Upgrade common-lang version to 3.7 in hadoop-hdfs-project | Major | . | Takanobu Asanuma | Takanobu Asanuma
MAPREDUCE-7063 | Fix log level inconsistency in CombineFileInputFormat.java | Minor | client | BELUGA BEHR | Vidura Bhathiya Mudalige
YARN-8440 | Typo in YarnConfiguration javadoc: “Miniumum request grant-able..” | Trivial | . | Szilard Nemeth | Szilard Nemeth
YARN-7449 | Split up class TestYarnClient to TestYarnClient and TestYarnClientImpl | Minor | client, yarn | Yufei Gu | Szilard Nemeth
YARN-8442 | Strange characters and missing spaces in FairScheduler documentation | Major | . | Szilard Nemeth | Szilard Nemeth
YARN-8441 | Typo in CSQueueUtils local variable names: queueGuranteedResource | Trivial | resourcemanager | Szilard Nemeth | Szilard Nemeth
MAPREDUCE-7113 | Typos in test names in TestTaskAttempt: “testAppDiognostic” | Minor | . | Szilard Nemeth | Szilard Nemeth
HADOOP-15551 | Avoid use of Java8 streams in Configuration.addTags | Major | performance | Todd Lipcon | Todd Lipcon
HDFS-13692 | StorageInfoDefragmenter floods log when compacting StorageInfo TreeSet | Minor | . | Yiqun Lin | Bharat Viswanadham
YARN-8214 | Change default RegistryDNS port | Major | . | Billie Rinaldi | Billie Rinaldi
YARN-8461 | Support strict memory control on individual container with elastic control memory mechanism | Major | nodemanager | Haibo Chen | Haibo Chen
HADOOP-14313 | Replace/improve Hadoop’s byte[] comparator | Major | common | Vikas Vishwakarma | Vikas Vishwakarma
HDFS-13703 | Avoid allocation of CorruptedBlocks hashmap when no corrupted blocks are hit | Major | performance | Todd Lipcon | Todd Lipcon
HADOOP-15554 | Improve JIT performance for Configuration parsing | Minor | conf, performance | Todd Lipcon | Todd Lipcon
HDFS-13536 | [PROVIDED Storage] HA for InMemoryAliasMap | Major | . | Virajith Jalaparti | Virajith Jalaparti
HDFS-13714 | Fix TestNameNodePrunesMissingStorages test failures on Windows | Major | hdfs, namenode, test | Lukas Majercak | Lukas Majercak
HDFS-13712 | BlockReaderRemote.read() logging improvement | Minor | hdfs-client | Gergo Repas | Gergo Repas
YARN-8302 | ATS v2 should handle HBase connection issue properly | Major | ATSv2 | Yesha Vora | Billie Rinaldi
HDFS-13719 | Docs around dfs.image.transfer.timeout are misleading | Major | . | Kitti Nanasi | Kitti Nanasi
HADOOP-15591 | KMSClientProvider should log KMS DT acquisition at INFO level | Minor | kms | Kitti Nanasi | Kitti Nanasi
HADOOP-15581 | Set default jetty log level to INFO in KMS | Major | . | Kitti Nanasi | Kitti Nanasi
HADOOP-15568 | fix some typos in the .sh comments | Trivial | bin | Steve Loughran | Steve Loughran
YARN-8502 | Use path strings consistently for webservice endpoints in RMWebServices | Major | . | Szilard Nemeth | Szilard Nemeth
HADOOP-15531 | Use commons-text instead of commons-lang in some classes to fix deprecation warnings | Major | . | Takanobu Asanuma | Takanobu Asanuma
HADOOP-15598 | DataChecksum calculate checksum is contented on hashtable synchronization | Major | common | Prasanth Jayachandran | Prasanth Jayachandran
YARN-8524 | Single parameter Resource / LightWeightResource constructor looks confusing | Major | api | Szilard Nemeth | Szilard Nemeth
YARN-8361 | Change App Name Placement Rule to use App Name instead of App Id for configuration | Major | yarn | Zian Chen | Zian Chen
HDFS-13690 | Improve error message when creating encryption zone while KMS is unreachable | Minor | encryption, hdfs, kms | Kitti Nanasi | Kitti Nanasi
YARN-8501 | Reduce complexity of RMWebServices’ getApps method | Major | restapi | Szilard Nemeth | Szilard Nemeth
YARN-7300 | DiskValidator is not used in LocalDirAllocator | Major | . | Haibo Chen | Szilard Nemeth
HADOOP-15596 | Stack trace should not be printed out when running hadoop key commands | Minor | common | Kitti Nanasi | Kitti Nanasi
YARN-7133 | Clean up lock-try order in fair scheduler | Major | fairscheduler | Daniel Templeton | Szilard Nemeth
HDFS-13761 | Add toString Method to AclFeature Class | Minor | . | Shweta | Shweta
HADOOP-15609 | Retry KMS calls when SSLHandshakeException occurs | Major | common, kms | Kitti Nanasi | Kitti Nanasi
HADOOP-15612 | Improve exception when tfile fails to load LzoCodec | Major | . | Gera Shegalov | Gera Shegalov
HDFS-11060 | make DEFAULT_MAX_CORRUPT_FILEBLOCKS_RETURNED configurable | Minor | hdfs | Lantao Jin | Lantao Jin
HADOOP-15611 | Log more details for FairCallQueue | Minor | . | Ryan Wu | Ryan Wu
HDFS-13727 | Log full stack trace if DiskBalancer exits with an unhandled exception | Minor | diskbalancer | Stephen O’Donnell | Gabor Bota
YARN-8517 | getContainer and getContainers ResourceManager REST API methods are not documented | Major | resourcemanager | Szilard Nemeth | Antal Bálint Steinbach
YARN-8566 | Add diagnostic message for unschedulable containers | Major | resourcemanager | Szilard Nemeth | Szilard Nemeth
YARN-8584 | Several typos in Log Aggregation related classes | Minor | . | Szilard Nemeth | Szilard Nemeth
YARN-8155 | Improve ATSv2 client logging in RM and NM publisher | Major | . | Rohith Sharma K S | Abhishek Modi
HADOOP-15476 | fix logging for split-dns multihome | Major | . | Ajay Kumar | Ajay Kumar
YARN-7948 | Enable fair scheduler to refresh maximum allocation for multiple resource types | Major | fairscheduler | Yufei Gu | Szilard Nemeth
HDFS-13796 | Allow verbosity of InMemoryLevelDBAliasMapServer to be configurable | Trivial | . | Virajith Jalaparti | Virajith Jalaparti
YARN-8626 | Create HomePolicyManager that sends all the requests to the home subcluster | Minor | . | Giovanni Matteo Fumarola | Íñigo Goiri
HDFS-13728 | Disk Balancer should not fail if volume usage is greater than capacity | Minor | diskbalancer | Stephen O’Donnell | Stephen O’Donnell
HDFS-13447 | Fix Typos - Node Not Chosen | Trivial | namenode | BELUGA BEHR | BELUGA BEHR
YARN-8601 | Print ExecutionType in Container report CLI | Minor | . | Bilwa S T | Bilwa S T
HDFS-13658 | Expose HighestPriorityLowRedundancy blocks statistics | Major | hdfs | Kitti Nanasi | Kitti Nanasi
YARN-8568 | Replace the deprecated zk-address property in the HA config example in ResourceManagerHA.md | Minor | yarn | Antal Bálint Steinbach | Antal Bálint Steinbach
HDFS-13735 | Make QJM HTTP URL connection timeout configurable | Minor | qjm | Chao Sun | Chao Sun
YARN-4946 | RM should not consider an application as COMPLETED when log aggregation is not in a terminal state | Major | log-aggregation | Robert Kanter | Szilard Nemeth
HDFS-13814 | Remove super user privilege requirement for NameNode.getServiceStatus | Minor | namenode | Chao Sun | Chao Sun
YARN-8559 | Expose mutable-conf scheduler’s configuration in RM /scheduler-conf endpoint | Major | resourcemanager | Anna Savarin | Weiwei Yang
HDFS-13813 | Exit NameNode if dangling child inode is detected when saving FsImage | Major | hdfs, namenode | Siyao Meng | Siyao Meng
HADOOP-14212 | Expose SecurityEnabled boolean field in JMX for other services besides NameNode | Minor | . | Ray Burgemeestre | Adam Antal
HDFS-13217 | Audit log all EC policy names during addErasureCodingPolicies | Major | erasure-coding | liaoyuxiangqin | liaoyuxiangqin
HDFS-13732 | ECAdmin should print the policy name when an EC policy is set | Trivial | erasure-coding, tools | Soumyapn | Zsolt Venczel
HDFS-13829 | Remove redundant condition judgement in DirectoryScanner#scan | Minor | datanode | liaoyuxiangqin | liaoyuxiangqin
HDFS-13822 | speedup libhdfs++ build (enable parallel build) | Minor | . | Pradeep Ambati | Allen Wittenauer
HADOOP-9214 | Create a new touch command to allow modifying atime and mtime | Minor | tools | Brian Burton | Hrishikesh Gadre
YARN-8242 | YARN NM: OOM error while reading back the state store on recovery | Critical | yarn | Kanwaljeet Sachdev | Pradeep Ambati
YARN-8683 | Support to display pending scheduling requests in RM app attempt page | Major | webapp | Tao Yang | Tao Yang
HDFS-13821 | RBF: Add dfs.federation.router.mount-table.cache.enable so that users can disable cache | Major | hdfs | Fei Hui | Fei Hui
HDFS-13861 | RBF: Illegal Router Admin command leads to printing usage for all commands | Major | . | Ayush Saxena | Ayush Saxena
HDFS-13831 | Make block increment deletion number configurable | Major | . | Yiqun Lin | Ryan Wu
YARN-8051 | TestRMEmbeddedElector#testCallbackSynchronization is flakey | Major | test | Robert Kanter | Robert Kanter

### BUG FIXES:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
YARN-8040 | [UI2] New YARN UI webapp does not respect current pathname for REST api | Major | yarn-ui-v2 | Sunil Govindan | Sunil Govindan
HADOOP-15062 | TestCryptoStreamsWithOpensslAesCtrCryptoCodec fails on Debian 9 | Major | . | Miklos Szegedi | Miklos Szegedi
HDFS-11043 | TestWebHdfsTimeouts fails | Major | webhdfs | Andrew Wang | Chao Sun
HADOOP-15331 | Fix a race condition causing parsing error of java.io.BufferedInputStream in class org.apache.hadoop.conf.Configuration | Major | common | Miklos Szegedi | Miklos Szegedi
HDFS-11900 | Hedged reads thread pool creation not synchronized | Major | hdfs-client | John Zhuge | John Zhuge
YARN-8032 | Yarn service should expose failuresValidityInterval to users and use it for launching containers | Major | . | Chandni Singh | Chandni Singh
YARN-8043 | Add the exception message for failed launches running under LCE | Major | . | Shane Kumpf | Shane Kumpf
MAPREDUCE-6441 | Improve temporary directory name generation in LocalDistributedCacheManager for concurrent processes | Major | . | William Watson | Haibo Chen
HADOOP-15299 | Bump Hadoop’s Jackson 2 dependency 2.9.x | Major | . | Sean Mackrory | Sean Mackrory
YARN-7734 | YARN-5418 breaks TestContainerLogsPage.testContainerLogPageAccess | Major | . | Miklos Szegedi | Tao Yang
HDFS-13087 | Snapshotted encryption zone information should be immutable | Major | encryption | LiXin Ge | LiXin Ge
HADOOP-12862 | LDAP Group Mapping over SSL can not specify trust store | Major | . | Wei-Chiu Chuang | Wei-Chiu Chuang
HADOOP-15352 | Fix default local maven repository path in create-release script | Minor | scripts | Elek, Marton | Elek, Marton
HADOOP-15317 | Improve NetworkTopology chooseRandom’s loop | Major | . | Xiao Chen | Xiao Chen
HADOOP-15355 | TestCommonConfigurationFields is broken by HADOOP-15312 | Major | test | Konstantin Shvachko | LiXin Ge
YARN-7764 | Findbugs warning: Resource#getResources may expose internal representation | Major | api | Weiwei Yang | Weiwei Yang
YARN-8115 | [UI2] URL data like nodeHTTPAddress must be encoded in UI before using to access NM | Major | yarn-ui-v2 | Sunil Govindan | Sreenath Somarajapuram
HADOOP-14855 | Hadoop scripts may errantly believe a daemon is still running, preventing it from starting | Major | scripts | Aaron T. Myers | Robert Kanter
HDFS-13350 | Negative legacy block ID will confuse Erasure Coding to be considered as striped block | Major | erasure-coding | Lei (Eddy) Xu | Lei (Eddy) Xu
YARN-8119 | [UI2] Timeline Server address’ url scheme should be removed while accessing via KNOX | Major | yarn-ui-v2 | Sunil Govindan | Sunil Govindan
HDFS-13176 | WebHdfs file path gets truncated when having semicolon (;) inside | Major | webhdfs | Zsolt Venczel | Zsolt Venczel
YARN-8083 | [UI2] All YARN related configurations are paged together in conf page | Major | yarn-ui-v2 | Zoltan Haindrich | Gergely Novák
HDFS-13292 | Crypto command should give proper exception when trying to set key on existing EZ directory | Major | hdfs, kms | Harshakiran Reddy | Ranith Sardar
HADOOP-15366 | Add a helper shutdown routine in HadoopExecutor to ensure clean shutdown | Minor | . | Shashikant Banerjee | Shashikant Banerjee
YARN-7905 | Parent directory permission incorrect during public localization | Critical | . | Bibin A Chundatt | Bilwa S T
HADOOP-15328 | Fix the typo in HttpAuthentication.md | Minor | common | fang zhenyi | fang zhenyi
HADOOP-15374 | Add links of the new features of 3.1.0 to the top page | Major | documentation | Takanobu Asanuma | Takanobu Asanuma
YARN-7804 | Refresh action on Grid view page should not be redirected to graph view | Major | yarn-ui-v2 | Yesha Vora | Gergely Novák
HDFS-13420 | License header is displayed in ArchivalStorage/MemoryStorage html pages | Minor | documentation | Akira Ajisaka | Akira Ajisaka
HDFS-13328 | Abstract ReencryptionHandler recursive logic in separate class. | Major | namenode | Surendra Singh Lilhore | Surendra Singh Lilhore
HADOOP-15340 | Provide meaningful RPC server name for RpcMetrics | Major | common | Elek, Marton | Elek, Marton
HADOOP-15357 | Configuration.getPropsWithPrefix no longer does variable substitution | Major | . | Jim Brennan | Jim Brennan
YARN-7984 | Delete registry entries from ZK on ServiceClient stop and clean up stop/destroy behavior | Critical | yarn-native-services | Billie Rinaldi | Billie Rinaldi
YARN-8133 | Doc link broken for yarn-service from overview page. | Blocker | yarn-native-services | Rohith Sharma K S | Rohith Sharma K S
YARN-8116 | Nodemanager fails with NumberFormatException: For input string: "" | Critical | . | Yesha Vora | Chandni Singh
MAPREDUCE-7062 | Update mapreduce.job.tags description for making use for ATSv2 purpose. | Major | . | Charan Hebri | Charan Hebri
YARN-8073 | TimelineClientImpl doesn’t honor yarn.timeline-service.versions configuration | Major | . | Rohith Sharma K S | Rohith Sharma K S
YARN-8127 | Resource leak when async scheduling is enabled | Critical | . | Weiwei Yang | Tao Yang
HADOOP-12502 | SetReplication OutOfMemoryError | Major | . | Philipp Schuegerl | Vinayakumar B
HDFS-13427 | Fix the section titles of transparent encryption document | Minor | documentation | Akira Ajisaka | Akira Ajisaka
HDFS-7101 | Potential null dereference in DFSck#doWork() | Minor | . | Ted Yu | skrho
HDFS-13426 | Fix javadoc in FsDatasetAsyncDiskService#removeVolume | Minor | hdfs | Shashikant Banerjee | Shashikant Banerjee
YARN-8120 | JVM can crash with SIGSEGV when exiting due to custom leveldb logger | Major | nodemanager, resourcemanager | Jason Lowe | Jason Lowe
YARN-8147 | TestClientRMService#testGetApplications sporadically fails | Major | test | Jason Lowe | Jason Lowe
HDFS-13436 | Fix javadoc of package-info.java | Major | documentation | Akira Ajisaka | Akira Ajisaka
HADOOP-15379 | Make IrqHandler.bind() public | Minor | util | Steve Loughran | Ajay Kumar
YARN-8154 | Fix missing titles in PlacementConstraints document | Minor | documentation | Akira Ajisaka | Weiwei Yang
YARN-8153 | Guaranteed containers always stay in SCHEDULED on NM after restart | Major | . | Yang Wang | Yang Wang
HADOOP-14970 | MiniHadoopClusterManager doesn’t respect lack of format option | Minor | . | Erik Krogen | Erik Krogen
HDFS-13438 | Fix javadoc in FsVolumeList#removeVolume | Minor | . | Shashikant Banerjee | Shashikant Banerjee
YARN-8142 | yarn service application stops when AM is killed with SIGTERM | Major | yarn-native-services | Yesha Vora | Billie Rinaldi
MAPREDUCE-7077 | Pipe mapreduce job fails with Permission denied for jobTokenPassword | Critical | . | Yesha Vora | Akira Ajisaka
HDFS-13330 | ShortCircuitCache#fetchOrCreate never retries | Major | . | Wei-Chiu Chuang | Gabor Bota
YARN-8156 | Increase the default value of yarn.timeline-service.app-collector.linger-period.ms | Major | . | Rohith Sharma K S | Charan Hebri
HADOOP-15369 | Avoid usage of ${project.version} in parent poms | Major | build | Elek, Marton | Elek, Marton
YARN-8162 | Remove Method DirectoryCollection#verifyDirUsingMkdir | Major | nodemanager | Yufei Gu | Yufei Gu
YARN-7773 | YARN Federation used Mysql as state store throw exception, Unknown column ‘homeSubCluster’ in ‘field list’ | Blocker | federation | Yiran Wu | Yiran Wu
YARN-8165 | Incorrect queue name logging in AbstractContainerAllocator | Trivial | capacityscheduler | Weiwei Yang | Weiwei Yang
YARN-8164 | Fix a potential NPE in AbstractSchedulerPlanFollower | Major | . | lujie | lujie
YARN-7088 | Add application launch time to Resource Manager REST API | Major | . | Abdullah Yousufi | Kanwaljeet Sachdev
YARN-8096 | Wrong condition in AmIpFilter#getProxyAddresses() to update the proxy IP list | Major | . | Oleksandr Shevchenko | Oleksandr Shevchenko
HDFS-12828 | OIV ReverseXML Processor fails with escaped characters | Critical | hdfs | Erik Krogen | Erik Krogen
HADOOP-15391 | Add missing css file in hadoop-aws, hadoop-aliyun, hadoop-azure and hadoop-azure-datalake modules | Major | documentation | Yiqun Lin | Yiqun Lin
YARN-8171 | [UI2] AM Node link from attempt page should not redirect to new tab | Major | yarn-ui-v2 | Sunil Govindan | Sunil Govindan
YARN-8145 | yarn rmadmin -getGroups doesn’t return updated groups for user | Major | . | Sumana Sathish | Sunil Govindan
HDFS-13463 | Fix javadoc in FsDatasetImpl#checkAndUpdate | Minor | datanode | Shashikant Banerjee | Shashikant Banerjee
HDFS-13464 | Fix javadoc in FsVolumeList#handleVolumeFailures | Minor | documentation | Shashikant Banerjee | Shashikant Banerjee
HADOOP-15396 | Some java source files are executable | Minor | . | Akira Ajisaka | Shashikant Banerjee
YARN-6827 | [ATS1/1.5] NPE exception while publishing recovering applications into ATS during RM restart. | Major | resourcemanager | Rohith Sharma K S | Rohith Sharma K S
YARN-8182 | [UI2] Proxy- Clicking on nodes under Nodes HeatMap gives 401 error | Critical | . | Sumana Sathish | Sunil Govindan
YARN-8189 | [UI2] Nodes page column headers are half truncated | Major | . | Sunil Govindan | Sunil Govindan
YARN-7830 | [UI2] Post selecting grid view in Attempt page, attempt info page should also be opened with grid view | Major | yarn-ui-v2 | Yesha Vora | Gergely Novák
YARN-7786 | NullPointerException while launching ApplicationMaster | Major | . | lujie | lujie
HDFS-10183 | Prevent race condition during class initialization | Minor | fs | Pavel Avgustinov | Pavel Avgustinov
HDFS-13055 | Aggregate usage statistics from datanodes | Major | . | Ajay Kumar | Ajay Kumar
HDFS-13388 | RequestHedgingProxyProvider calls multiple configured NNs all the time | Major | hdfs-client | Jinglun | Jinglun
YARN-7956 | [UI2] Avoid duplicating Components link under Services/<ServiceName>/Components | Major | yarn-ui-v2 | Yesha Vora | Yesha Vora
HDFS-13408 | MiniDFSCluster to support being built on randomized base directory | Major | test | Xiao Liang | Xiao Liang
HDFS-13356 | Balancer:Set default value of minBlockSize to 10mb | Major | balancer & mover | Bharat Viswanadham | Bharat Viswanadham
HADOOP-15390 | Yarn RM logs flooded by DelegationTokenRenewer trying to renew KMS tokens | Critical | . | Xiao Chen | Xiao Chen
HDFS-13336 | Test cases of TestWriteToReplica failed in windows | Major | . | Xiao Liang | Xiao Liang
YARN-7598 | Document how to use classpath isolation for aux-services in YARN | Major | . | Xuan Gong | Xuan Gong
YARN-8196 | yarn.webapp.api-service.enable should be highlighted in the quickstart | Trivial | documentation | Davide Vergari | Billie Rinaldi
YARN-8183 | Fix ConcurrentModificationException inside RMAppAttemptMetrics#convertAtomicLongMaptoLongMap | Critical | yarn | Sumana Sathish | Suma Shivaprasad
HADOOP-15402 | Prevent double logout of UGI’s LoginContext | Major | security | Daryn Sharp | Daryn Sharp
YARN-8188 | RM Nodes UI data table index for sorting column need to be corrected post Application tags display | Major | resourcemanager, webapp | Weiwei Yang | Weiwei Yang
HADOOP-15411 | AuthenticationFilter should use Configuration.getPropsWithPrefix instead of iterator | Critical | . | Suma Shivaprasad | Suma Shivaprasad
MAPREDUCE-7042 | Killed MR job data does not move to mapreduce.jobhistory.done-dir when ATS v2 is enabled | Major | . | Yesha Vora | Xuan Gong
YARN-8205 | Application State is not updated to ATS if AM launching is delayed. | Critical | . | Sumana Sathish | Rohith Sharma K S
YARN-8004 | Add unit tests for inter queue preemption for dominant resource calculator | Critical | yarn | Sumana Sathish | Zian Chen
YARN-8208 | Add log statement for Docker client configuration file at INFO level | Minor | yarn-native-services | Yesha Vora | Yesha Vora
YARN-8211 | Yarn registry dns log finds BufferUnderflowException on port ping | Major | yarn-native-services | Yesha Vora | Eric Yang
MAPREDUCE-7072 | mapred job -history prints duplicate counter in human output | Major | client | Wilfred Spiegelenburg | Wilfred Spiegelenburg
YARN-8221 | RMWebServices also need to honor yarn.resourcemanager.display.per-user-apps | Major | webapp | Sunil Govindan | Sunil Govindan
YARN-8210 | AMRMClient logging on every heartbeat to track updation of AM RM token causes too many log lines to be generated in AM logs | Major | yarn | Suma Shivaprasad | Suma Shivaprasad
YARN-8005 | Add unit tests for queue priority with dominant resource calculator | Critical | . | Sumana Sathish | Zian Chen
YARN-8225 | YARN precommit build failing in TestPlacementConstraintTransformations | Critical | . | Billie Rinaldi | Shane Kumpf
HDFS-13509 | Bug fix for breakHardlinks() of ReplicaInfo/LocalReplica, and fix TestFileAppend failures on Windows | Major | . | Xiao Liang | Xiao Liang
YARN-8187 | [UI2] Individual Node page does not contain breadcrumb trail | Critical | yarn-ui-v2 | Sumana Sathish | Zian Chen
YARN-7799 | YARN Service dependency follow up work | Critical | client, resourcemanager | Gour Saha | Billie Rinaldi
MAPREDUCE-7073 | Optimize TokenCache#obtainTokensForNamenodesInternal | Major | . | Bibin A Chundatt | Bibin A Chundatt
HADOOP-15406 | hadoop-nfs dependencies for mockito and junit are not test scope | Major | nfs | Jason Lowe | Jason Lowe
YARN-6385 | Fix checkstyle warnings in TestFileSystemApplicationHistoryStore | Minor | . | Yiqun Lin | Yiqun Lin
YARN-8222 | Fix potential NPE when gets RMApp from RM context | Critical | . | Tao Yang | Tao Yang
HADOOP-12071 | conftest is not documented | Minor | documentation | Kengo Seki | Kengo Seki
YARN-8209 | NPE in DeletionService | Critical | . | Chandni Singh | Eric Badger
HDFS-13481 | TestRollingFileSystemSinkWithHdfs#testFlushThread: test failed intermittently | Major | hdfs | Gabor Bota | Gabor Bota
HADOOP-15434 | Upgrade to ADLS SDK that exposes current timeout | Major | . | Sean Mackrory | Sean Mackrory
YARN-8217 | RmAuthenticationFilterInitializer /TimelineAuthenticationFilterInitializer should use Configuration.getPropsWithPrefix instead of iterator | Major | . | Suma Shivaprasad | Suma Shivaprasad
YARN-7818 | Remove privileged operation warnings during container launch for the ContainerRuntimes | Major | . | Yesha Vora | Shane Kumpf
YARN-8223 | ClassNotFoundException when auxiliary service is loaded from HDFS | Blocker | . | Charan Hebri | Zian Chen
YARN-8079 | Support static and archive unmodified local resources in service AM | Critical | . | Wangda Tan | Suma Shivaprasad
YARN-8025 | UsersManangers#getComputedResourceLimitForActiveUsers throws NPE due to preComputedActiveUserLimit is empty | Major | yarn | Jiandan Yang | Tao Yang
YARN-8251 | [UI2] Clicking on Application link at the header goes to Diagnostics Tab instead of AppAttempt Tab | Major | yarn-ui-v2 | Sumana Sathish | Yesha Vora
YARN-8232 | RMContainer lost queue name when RM HA happens | Major | resourcemanager | Hu Ziqian | Hu Ziqian
YARN-7894 | Improve ATS response for DS_CONTAINER when container launch fails | Major | timelineserver | Charan Hebri | Chandni Singh
YARN-8264 | [UI2 GPU] GPU Info tab disappears if we click any sub link under List of Applications or List of Containers | Major | . | Sumana Sathish | Sunil Govindan
HDFS-13136 | Avoid taking FSN lock while doing group member lookup for FSD permission check | Major | namenode | Xiaoyu Yao | Xiaoyu Yao
HDFS-13537 | TestHdfsHelper does not generate jceks path properly for relative path in Windows | Major | . | Xiao Liang | Xiao Liang
MAPREDUCE-7095 | Race conditions in closing FadvisedChunkedFile | Minor | . | Miklos Szegedi | Miklos Szegedi
HADOOP-15446 | WASB: PageBlobInputStream.skip breaks HBASE replication | Major | fs/azure | Thomas Marquardt | Thomas Marquardt
YARN-7715 | Support NM promotion/demotion of running containers. | Major | . | Arun Suresh | Miklos Szegedi
YARN-7003 | DRAINING state of queues is not recovered after RM restart | Major | capacityscheduler | Tao Yang | Tao Yang
YARN-8268 | Fair scheduler: reservable queue is configured both as parent and leaf queue | Major | fairscheduler | Gergo Repas | Gergo Repas
YARN-8244 | TestContainerSchedulerQueuing.testStartMultipleContainers failed | Major | . | Miklos Szegedi | Jim Brennan
YARN-8265 | Service AM should retrieve new IP for docker container relaunched by NM | Critical | yarn-native-services | Eric Yang | Billie Rinaldi
YARN-8271 | [UI2] Improve labeling of certain tables | Major | yarn-ui-v2 | Yesha Vora | Yesha Vora
YARN-8288 | Fix wrong number of table columns in Resource Model doc | Major | . | Weiwei Yang | Weiwei Yang
HDFS-13539 | DFSStripedInputStream NPE when reportCheckSumFailure | Major | . | Xiao Chen | Xiao Chen
YARN-8266 | [UI2] Clicking on application from cluster view should redirect to application attempt page | Major | yarn-ui-v2 | Yesha Vora | Yesha Vora
YARN-8166 | [UI2] Service page header links are broken | Major | yarn-ui-v2 | Yesha Vora | Yesha Vora
YARN-8236 | Invalid kerberos principal file name cause NPE in native service | Critical | yarn-native-services | Sunil Govindan | Gour Saha
YARN-8278 | DistributedScheduling is not working in HA | Blocker | . | Bibin A Chundatt | Bibin A Chundatt
HADOOP-15466 | Correct units in adl.http.timeout | Major | fs/adl | Sean Mackrory | Sean Mackrory
YARN-8300 | Fix NPE in DefaultUpgradeComponentsFinder | Major | yarn | Suma Shivaprasad | Suma Shivaprasad
YARN-8071 | Add ability to specify nodemanager environment variables individually | Major | yarn | Jim Brennan | Jim Brennan
HDFS-13581 | DN UI logs link is broken when https is enabled | Minor | datanode | Namit Maheshwari | Shashikant Banerjee
MAPREDUCE-7094 | LocalDistributedCacheManager leaves classloaders open, which leaks FDs | Major | . | Adam Szita | Adam Szita
YARN-8128 | Document better the per-node per-app file limit in YARN log aggregation | Major | . | Xuan Gong | Xuan Gong
YARN-8293 | In YARN Services UI, “User Name for service” should be completely removed in secure clusters | Major | yarn-ui-v2 | Sunil Govindan | Sunil Govindan
YARN-8141 | YARN Native Service: Respect YARN_CONTAINER_RUNTIME_DOCKER_LOCAL_RESOURCE_MOUNTS specified in service spec | Critical | yarn-native-services | Wangda Tan | Chandni Singh
YARN-8296 | Update YarnServiceApi documentation and yarn service UI code to remove references to unique_component_support | Major | yarn-native-services, yarn-ui-v2 | Suma Shivaprasad | Suma Shivaprasad
HDFS-13586 | Fsync fails on directories on Windows | Critical | datanode, hdfs | Lukas Majercak | Lukas Majercak
HDFS-13573 | Javadoc for BlockPlacementPolicyDefault is inaccurate | Trivial | . | Yiqun Lin | Zsolt Venczel
YARN-8248 | Job hangs when a job requests a resource that its queue does not have | Major | fairscheduler | Szilard Nemeth | Szilard Nemeth
YARN-8179 | Preemption does not happen due to natural_termination_factor when DRF is used | Major | . | kyungwan nam | kyungwan nam
HADOOP-15474 | Rename properties introduced for <tags> | Major | conf | Nanda kumar | Zsolt Venczel
HADOOP-15450 | Avoid fsync storm triggered by DiskChecker and handle disk full situation | Blocker | . | Kihwal Lee | Arpit Agarwal
YARN-8290 | SystemMetricsPublisher.appACLsUpdated should be invoked after application information is published to ATS to avoid “User is not set in the application report” Exception | Critical | . | Yesha Vora | Eric Yang
YARN-8332 | Incorrect min/max allocation property name in resource types doc | Critical | documentation | Weiwei Yang | Weiwei Yang
YARN-8273 | Log aggregation does not warn if HDFS quota in target directory is exceeded | Major | log-aggregation | Gergo Repas | Gergo Repas
HDFS-13601 | Optimize ByteString conversions in PBHelper | Major | . | Andrew Wang | Andrew Wang
HDFS-13540 | DFSStripedInputStream should only allocate new buffers when reading | Major | . | Xiao Chen | Xiao Chen
YARN-8297 | Incorrect ATS Url used for Wire encrypted cluster | Blocker | yarn-ui-v2 | Yesha Vora | Sunil Govindan
HDFS-13588 | Fix TestFsDatasetImpl test failures on Windows | Major | . | Xiao Liang | Xiao Liang
YARN-8310 | Handle old NMTokenIdentifier, AMRMTokenIdentifier, and ContainerTokenIdentifier formats | Major | . | Robert Kanter | Robert Kanter
YARN-8336 | Fix potential connection leak in SchedConfCLI and YarnWebServiceUtils | Major | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola
YARN-8344 | Missing nm.stop() in TestNodeManagerResync to fix testKillContainersOnResync | Major | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola
YARN-8348 | Incorrect and missing AfterClass in HBase-tests to fix NPE failures | Major | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola
YARN-8327 | Fix TestAggregatedLogFormat#testReadAcontainerLogs1 on Windows | Major | log-aggregation | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola
YARN-8346 | Upgrading to 3.1 kills running containers with error “Opportunistic container queue is full” | Blocker | . | Rohith Sharma K S | Jason Lowe
HDFS-13611 | Unsafe use of Text as a ConcurrentHashMap key in PBHelperClient | Major | . | Andrew Wang | Andrew Wang
YARN-8316 | Diagnostic message should improve when yarn service fails to launch due to ATS unavailability | Major | yarn-native-services | Yesha Vora | Billie Rinaldi
YARN-8357 | Yarn Service: NPE when service is saved first and then started. | Critical | . | Chandni Singh | Chandni Singh
HDFS-13618 | Fix TestDataNodeFaultInjector test failures on Windows | Major | test | Xiao Liang | Xiao Liang
HADOOP-15473 | Configure serialFilter in KeyProvider to avoid UnrecoverableKeyException caused by JDK-8189997 | Critical | kms | Gabor Bota | Gabor Bota
YARN-8292 | Fix the dominant resource preemption cannot happen when some of the resource vector becomes negative | Critical | yarn | Sumana Sathish | Wangda Tan
HADOOP-15455 | Incorrect debug message in KMSACL#hasAccess | Trivial | . | Wei-Chiu Chuang | Yuen-Kuei Hsueh
YARN-8338 | TimelineService V1.5 doesn’t come up after HADOOP-15406 | Critical | . | Vinod Kumar Vavilapalli | Vinod Kumar Vavilapalli
YARN-8339 | Service AM should localize static/archive resource types to container working directory instead of ‘resources’ | Critical | yarn-native-services | Suma Shivaprasad | Suma Shivaprasad
YARN-8369 | Javadoc build failed due to “bad use of ‘>’” | Critical | build, docs | Takanobu Asanuma | Takanobu Asanuma
YARN-8362 | Number of remaining retries are updated twice after a container failure in NM | Critical | . | Chandni Singh | Chandni Singh
HDFS-13626 | Fix incorrect username when deny the setOwner operation | Minor | namenode | luhuachao | Zsolt Venczel
YARN-8377 | Javadoc build failed in hadoop-yarn-server-nodemanager | Critical | build, docs | Takanobu Asanuma | Takanobu Asanuma
YARN-8368 | yarn app start cli should print applicationId | Critical | . | Yesha Vora | Rohith Sharma K S
YARN-8350 | NPE in service AM related to placement policy | Critical | yarn-native-services | Billie Rinaldi | Gour Saha
YARN-8367 | Fix NPE in SingleConstraintAppPlacementAllocator when placement constraint in SchedulingRequest is null | Major | scheduler | Gour Saha | Weiwei Yang
HADOOP-15490 | Multiple declaration of maven-enforcer-plugin found in pom.xml | Minor | . | Nanda kumar | Nanda kumar
HDFS-13646 | DFSAdmin doesn’t display specialized help for triggerBlockReport | Major | tools | Takanobu Asanuma | Takanobu Asanuma
YARN-8197 | Tracking URL in the app state does not get redirected to MR ApplicationMaster for Running applications | Critical | yarn | Sumana Sathish | Sunil Govindan
YARN-8308 | Yarn service app fails due to issues with Renew Token | Major | yarn-native-services | Yesha Vora | Gour Saha
YARN-7340 | Fix the missing time stamp in exception message in Class NoOverCommitPolicy | Minor | reservation system | Yufei Gu | Dinesh Chitlangia
HDFS-13636 | Cross-Site Scripting vulnerability in HttpServer2 | Major | . | Haibo Yan | Haibo Yan
YARN-7962 | Race Condition When Stopping DelegationTokenRenewer causes RM crash during failover | Critical | resourcemanager | BELUGA BEHR | BELUGA BEHR
YARN-8372 | Distributed shell app master should not release containers when shutdown if keep-container is true | Critical | distributed-shell | Charan Hebri | Suma Shivaprasad
YARN-8375 | TestCGroupElasticMemoryController fails surefire build | Major | . | Jason Lowe | Miklos Szegedi
YARN-8319 | More YARN pages need to honor yarn.resourcemanager.display.per-user-apps | Major | webapp | Vinod Kumar Vavilapalli | Sunil Govindan
MAPREDUCE-7097 | MapReduce JHS should honor yarn.webapp.filter-entity-list-by-user | Major | . | Vinod Kumar Vavilapalli | Sunil Govindan
YARN-8276 | [UI2] After version field became mandatory, form-based submission of new YARN service doesn’t work | Critical | yarn-ui-v2 | Gergely Novák | Gergely Novák
HDFS-13339 | Volume reference can’t be released and may lead to deadlock when DataXceiver does a check volume | Critical | datanode | liaoyuxiangqin | Zsolt Venczel
YARN-8390 | Fix API incompatible changes in FairScheduler’s AllocationFileLoaderService | Major | fairscheduler | Gergo Repas | Gergo Repas
YARN-8382 | cgroup file leak in NM | Major | nodemanager | Hu Ziqian | Hu Ziqian
YARN-8365 | Revisit the record type used by Registry DNS for upstream resolution | Major | yarn-native-services | Shane Kumpf | Shane Kumpf
HDFS-13545 | “guarded” is misspelled as “gaurded” in FSPermissionChecker.java | Trivial | documentation | Jianchao Jia | Jianchao Jia
YARN-8396 | Click on an individual container continuously spins and doesn’t load the page | Blocker | . | Charan Hebri | Sunil Govindan
MAPREDUCE-7103 | Fix TestHistoryViewerPrinter on windows due to a mismatch line separator | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola
HADOOP-15217 | FsUrlConnection does not handle paths with spaces | Major | fs | Joseph Fourny | Zsolt Venczel
HDFS-12950 | [oiv] ls will fail in secure cluster | Major | . | Brahma Reddy Battula | Wei-Chiu Chuang
YARN-8386 | App log can not be viewed from Logs tab in secure cluster | Critical | yarn-ui-v2 | Yesha Vora | Sunil Govindan
HDFS-13615 | libhdfs++ SaslProtocol hanging while accessing invalid lock | Major | . | Mitchell Tracy | Mitchell Tracy
YARN-8359 | Exclude containermanager.linux test classes on Windows | Major | . | Giovanni Matteo Fumarola | Jason Lowe
HDFS-13642 | Creating a file with block size smaller than EC policy’s cell size should fail | Major | erasure-coding | Xiao Chen | Xiao Chen
HDFS-13664 | Refactor ConfiguredFailoverProxyProvider to make inheritance easier | Minor | hdfs-client | Chao Sun | Chao Sun
HDFS-12670 | can’t renew HDFS tokens with only the hdfs client jar | Critical | . | Thomas Graves | Arpit Agarwal
HDFS-13667 | Typo: Marking all “datandoes” as stale | Trivial | namenode | Wei-Chiu Chuang | Nanda kumar
YARN-8323 | FairScheduler.allocConf should be declared as volatile | Major | fairscheduler | Haibo Chen | Szilard Nemeth
YARN-8413 | Flow activity page is failing with “Timeline server failed with an error” | Major | yarn-ui-v2 | Yesha Vora | Sunil Govindan
YARN-8405 | RM zk-state-store.parent-path ACLs has been changed since HADOOP-14773 | Major | . | Rohith Sharma K S | Íñigo Goiri
YARN-8419 | [UI2] User cannot submit a new service as submit button is always disabled | Major | . | Suma Shivaprasad | Suma Shivaprasad
HADOOP-15307 | NFS: flavor AUTH_SYS should use VerifierNone | Major | nfs | Wei-Chiu Chuang | Gabor Bota
MAPREDUCE-7108 | TestFileOutputCommitter fails on Windows | Minor | test | Zuoming Zhang | Zuoming Zhang
MAPREDUCE-7101 | Add config parameter to allow JHS to alway scan user dir irrespective of modTime | Critical | . | Wangda Tan | Thomas Marquardt
HADOOP-15527 | loop until TIMEOUT before sending kill -9 | Major | . | Vinod Kumar Vavilapalli | Vinod Kumar Vavilapalli
YARN-8404 | Timeline event publish need to be async to avoid Dispatcher thread leak in case ATS is down | Blocker | . | Rohith Sharma K S | Rohith Sharma K S
YARN-8410 | Registry DNS lookup fails to return for CNAMEs | Major | yarn-native-services | Shane Kumpf | Shane Kumpf
YARN-8426 | Upgrade jquery-ui to 1.12.1 in YARN | Major | webapp | Sunil Govindan | Sunil Govindan
HDFS-13675 | Speed up TestDFSAdminWithHA | Major | hdfs, namenode | Lukas Majercak | Lukas Majercak
HDFS-13679 | Fix Typo in javadoc for ScanInfoPerBlockPool#addAll | Minor | . | Shashikant Banerjee | Shashikant Banerjee
HDFS-13673 | TestNameNodeMetrics fails on Windows | Minor | test | Zuoming Zhang | Zuoming Zhang
HDFS-13676 | TestEditLogRace fails on Windows | Minor | test | Zuoming Zhang | Zuoming Zhang
HDFS-13174 | hdfs mover -p /path times out after 20 min | Major | balancer & mover | Istvan Fajth | Istvan Fajth
HADOOP-15504 | Upgrade Maven and Maven Wagon versions | Major | build | Sean Mackrory | Sean Mackrory
HADOOP-15523 | Shell command timeout given is in seconds whereas it is taken as millisec while scheduling | Major | . | Bilwa S T | Bilwa S T
YARN-8437 | Build oom-listener fails on older versions | Major | . | Miklos Szegedi | Miklos Szegedi
YARN-8391 | Investigate AllocationFileLoaderService.reloadListener locking issue | Critical | fairscheduler | Haibo Chen | Szilard Nemeth
HDFS-13682 | Cannot create encryption zone after KMS auth token expires | Critical | encryption, kms, namenode | Xiao Chen | Xiao Chen
HADOOP-15549 | Upgrade to commons-configuration 2.1 regresses task CPU consumption | Major | metrics | Todd Lipcon | Todd Lipcon
YARN-8444 | NodeResourceMonitor crashes on bad swapFree value | Major | . | Jim Brennan | Jim Brennan
MAPREDUCE-7114 | Make FrameworkUploader symlink ignore improvement | Major | . | Gergo Repas | Gergo Repas
YARN-8184 | Too many metrics if containerLocalizer/ResourceLocalizationService uses ReadWriteDiskValidator | Major | nodemanager | Yufei Gu | Yufei Gu
YARN-8326 | Yarn 3.0 seems runs slower than Yarn 2.6 | Major | yarn | Hsin-Liang Huang | Shane Kumpf
YARN-8443 | Total #VCores in cluster metrics is wrong when CapacityScheduler reserved some containers | Major | webapp | Tao Yang | Tao Yang
YARN-8457 | Compilation is broken with -Pyarn-ui | Major | webapp | Sunil Govindan | Sunil Govindan
HADOOP-15550 | Avoid static initialization of ObjectMappers | Minor | performance | Todd Lipcon | Todd Lipcon
YARN-8438 | TestContainer.testKillOnNew flaky on trunk | Major | nodemanager | Szilard Nemeth | Szilard Nemeth
YARN-8464 | Async scheduling thread could be interrupted when there are no NodeManagers in cluster | Blocker | capacity scheduler | Charan Hebri | Sunil Govindan
YARN-8423 | GPU does not get released even though the application gets killed. | Critical | yarn | Sumana Sathish | Sunil Govindan
YARN-8401 | [UI2] new ui is not accessible with out internet connection | Blocker | . | Bibin A Chundatt | Bibin A Chundatt
HDFS-13705 | The native ISA-L library loading failure should be made warning rather than an error message | Minor | erasure-coding | Nilotpal Nandi | Shashikant Banerjee
YARN-8409 | ActiveStandbyElectorBasedElectorService is failing with NPE | Major | . | Yesha Vora | Chandni Singh
YARN-8379 | Improve balancing resources in already satisfied queues by using Capacity Scheduler preemption | Major | . | Wangda Tan | Zian Chen
YARN-8455 | Add basic ACL check for all ATS v2 REST APIs | Major | . | Rohith Sharma K S | Rohith Sharma K S
YARN-8469 | [UI2] URL needs to be trimmed to handle index.html redirection while accessing via knox | Major | yarn-ui-v2 | Sunil Govindan | Sunil Govindan
YARN-8451 | Multiple NM heartbeat thread created when a slow NM resync with RM | Major | nodemanager | Botong Huang | Botong Huang
HADOOP-15548 | Randomize local dirs | Minor | . | Jim Brennan | Jim Brennan
HDFS-13707 | [PROVIDED Storage] Fix failing integration tests in ITestProvidedImplementation | Major | . | Virajith Jalaparti | Virajith Jalaparti
HADOOP-15574 | Suppress build error if there are no docs after excluding private annotations | Major | . | Takanobu Asanuma | Takanobu Asanuma
HDFS-13702 | Remove HTrace hooks from DFSClient to reduce CPU usage | Major | performance | Todd Lipcon | Todd Lipcon
HDFS-13635 | Incorrect message when block is not found | Major | datanode | Wei-Chiu Chuang | Gabor Bota
YARN-8415 | TimelineWebServices.getEntity should throw ForbiddenException instead of 404 when ACL checks fail | Major | . | Sumana Sathish | Suma Shivaprasad
HDFS-13715 | diskbalancer does not work if one of the blockpools are empty on a Federated cluster | Major | diskbalancer | Namit Maheshwari | Bharat Viswanadham
YARN-8459 | Improve Capacity Scheduler logs to debug invalid states | Major | capacity scheduler | Wangda Tan | Wangda Tan
YARN-7451 | Add missing tests to verify the presence of custom resources of RM apps and scheduler webservice endpoints | Major | resourcemanager, restapi | Grant Sohn | Szilard Nemeth
YARN-8435 | Fix NPE when the same client simultaneously contact for the first time Yarn Router | Critical | router | rangjiaheng | rangjiaheng
HADOOP-15571 | Multiple FileContexts created with the same configuration object should be allowed to have different umask | Critical | . | Vinod Kumar Vavilapalli | Vinod Kumar Vavilapalli
YARN-8492 | ATSv2 HBase tests are failing with ClassNotFoundException | Major | . | Rohith Sharma K S | Rohith Sharma K S
HDFS-13121 | NPE when request file descriptors when SC read | Minor | hdfs-client | Gang Xie | Zsolt Venczel
HDFS-13721 | NPE in DataNode due to uninitialized DiskBalancer | Major | datanode, diskbalancer | Xiao Chen | Xiao Chen
YARN-6265 | yarn.resourcemanager.fail-fast is used inconsistently | Major | resourcemanager | Daniel Templeton | Yuanbo Liu
HDFS-13722 | HDFS Native Client Fails Compilation on Ubuntu 18.04 | Minor | . | Jack Bearden | Jack Bearden
YARN-8473 | Containers being launched as app tears down can leave containers in NEW state | Major | nodemanager | Jason Lowe | Jason Lowe
YARN-8512 | ATSv2 entities are not published to HBase from second attempt onwards | Major | . | Yesha Vora | Rohith Sharma K S
YARN-8491 | TestServiceCLI#testEnableFastLaunch fail when umask is 077 | Major | . | K G Bakthavachalam | K G Bakthavachalam
HADOOP-15594 | Exclude commons-lang3 from hadoop-client-minicluster | Major | . | Takanobu Asanuma | Takanobu Asanuma
HDFS-13723 | Occasional “Should be different group” error in TestRefreshUserMappings#testGroupMappingRefresh | Major | security, test | Siyao Meng | Siyao Meng
HDFS-12837 | Intermittent failure in TestReencryptionWithKMS | Major | encryption, test | Surendra Singh Lilhore | Xiao Chen
HADOOP-15316 | GenericTestUtils can exceed maxSleepTime | Trivial | . | Sean Mackrory | Adam Antal
HDFS-13729 | Fix broken links to RBF documentation | Minor | documentation | jwhitter | Gabor Bota
YARN-8518 | test-container-executor test_is_empty() is broken | Major | . | Jim Brennan | Jim Brennan
HDFS-13663 | Should throw exception when incorrect block size is set | Major | . | Yongjun Zhang | Shweta
YARN-8515 | container-executor can crash with SIGPIPE after nodemanager restart | Major | . | Jim Brennan | Jim Brennan
YARN-8421 | when moving app, activeUsers is increased, even though app does not have outstanding request | Major | . | kyungwan nam |
YARN-8511 | When AM releases a container, RM removes allocation tags before it is released by NM | Major | capacity scheduler | Weiwei Yang | Weiwei Yang
HDFS-13524 | Occasional “All datanodes are bad” error in TestLargeBlock#testLargeBlockSize | Major | . | Wei-Chiu Chuang | Siyao Meng
YARN-8538 | Fix valgrind leak check on container executor | Major | . | Billie Rinaldi | Billie Rinaldi
HDFS-13485 | DataNode WebHDFS endpoint throws NPE | Minor | datanode, webhdfs | Wei-Chiu Chuang | Siyao Meng
HADOOP-15610 | Hadoop Docker Image Pip Install Fails | Critical | . | Jack Bearden | Jack Bearden
HADOOP-15614 | TestGroupsCaching.testExceptionOnBackgroundRefreshHandled reliably fails | Major | . | Kihwal Lee | Weiwei Yang
YARN-8436 | FSParentQueue: Comparison method violates its general contract | Minor | fairscheduler | Wilfred Spiegelenburg | Wilfred Spiegelenburg
MAPREDUCE-7118 | Distributed cache conflicts breaks backwards compatability | Blocker | mrv2 | Jason Lowe | Jason Lowe
YARN-8528 | Final states in ContainerAllocation might be modified externally causing unexpected allocation results | Major | capacity scheduler | Xintong Song | Xintong Song
YARN-6964 | Fair scheduler misuses Resources operations | Major | fairscheduler | Daniel Templeton | Szilard Nemeth
YARN-8360 | Yarn service conflict between restart policy and NM configuration | Critical | yarn | Chandni Singh | Suma Shivaprasad
YARN-8380 | Support bind propagation options for mounts in docker runtime | Major | . | Billie Rinaldi | Billie Rinaldi
YARN-8544 | [DS] AM registration fails when hadoop authorization is enabled | Blocker | . | Bibin A Chundatt | Bibin A Chundatt
YARN-8548 | AllocationRespose proto setNMToken initBuilder not done | Major | . | Bibin A Chundatt | Bilwa S T
YARN-7748 | TestContainerResizing.testIncreaseContainerUnreservedWhenApplicationCompleted fails due to multiple container fail events | Major | capacityscheduler | Haibo Chen | Weiwei Yang
YARN-8541 | RM startup failure on recovery after user deletion | Blocker | resourcemanager | yimeng | Bibin A Chundatt
YARN-8577 | Fix the broken anchor in SLS site-doc | Minor | documentation | Weiwei Yang | Weiwei Yang
HADOOP-15395 | DefaultImpersonationProvider fails to parse proxy user config if username has . in it | Major | . | Ajay Kumar | Ajay Kumar
YARN-4606 | CapacityScheduler: applications could get starved because computation of #activeUsers considers pending apps | Critical | capacity scheduler, capacityscheduler | Karam Singh | Manikandan R
YARN-8330 | Avoid publishing reserved container to ATS from RM | Critical | yarn-native-services | Yesha Vora | Suma Shivaprasad
HDFS-13622 | mkdir should print the parent directory in the error message when parent directories do not exist | Major | . | Zoltan Haindrich | Shweta
HADOOP-15593 | UserGroupInformation TGT renewer throws NPE | Blocker | security | Wei-Chiu Chuang | Gabor Bota
YARN-8429 | Improve diagnostic message when artifact is not set properly | Major | . | Yesha Vora | Gour Saha
HDFS-13765 | Fix javadoc for FSDirMkdirOp#createParentDirectories | Minor | documentation | Lokesh Jain | Lokesh Jain
YARN-8571 | Validate service principal format prior to launching yarn service | Major | security, yarn | Eric Yang | Eric Yang
YARN-8596 | Allow SQLFederationStateStore to submit the same app in the same subcluster | Major | federation | Íñigo Goiri | Giovanni Matteo Fumarola
YARN-8508 | On NodeManager container gets cleaned up before its pid file is created | Critical | . | Sumana Sathish | Chandni Singh
YARN-8434 | Update federation documentation of Nodemanager configurations | Minor | . | Bibin A Chundatt | Bibin A Chundatt
YARN-8591 | [ATSv2] NPE while checking for entity acl in non-secure cluster | Major | timelinereader, timelineserver | Akhil PB | Rohith Sharma K S
YARN-8558 | NM recovery level db not cleaned up properly on container finish | Critical | . | Bibin A Chundatt | Bibin A Chundatt
HADOOP-15637 | LocalFs#listLocatedStatus does not filter out hidden .crc files | Minor | fs | Erik Krogen | Erik Krogen
YARN-8605 | TestDominantResourceFairnessPolicy.testModWhileSorting is flaky | Minor | fairscheduler | Wilfred Spiegelenburg | Wilfred Spiegelenburg
YARN-8418 | App local logs could leaked if log aggregation fails to initialize for the app | Critical | . | Bibin A Chundatt | Bibin A Chundatt
YARN-8579 | New AM attempt could not retrieve previous attempt component data | Critical | . | Yesha Vora | Gour Saha
HDFS-13322 | fuse dfs - uid persists when switching between ticket caches | Minor | fuse-dfs | Alex Volskiy | Istvan Fajth
YARN-8397 | Potential thread leak in ActivitiesManager | Major | . | Rohith Sharma K S | Rohith Sharma K S
YARN-8522 | Application fails with InvalidResourceRequestException | Critical | . | Yesha Vora | Zian Chen
YARN-8606 | Opportunistic scheduling does not work post RM failover | Blocker | . | Bibin A Chundatt | Bibin A Chundatt
YARN-8595 | [UI2] Container diagnostic information is missing from container page | Major | yarn-ui-v2 | Akhil PB | Akhil PB
YARN-8403 | Nodemanager logs failed to download file with INFO level | Major | yarn | Eric Yang | Eric Yang
YARN-8600 | RegistryDNS hang when remote lookup does not reply | Critical | yarn | Eric Yang | Eric Yang
YARN-8610 | Yarn Service Upgrade: Typo in Error message | Major | . | Chandni Singh | Chandni Singh
YARN-8593 | Add RM web service endpoint to get user information | Major | resourcemanager | Akhil PB | Akhil PB
YARN-8594 | [UI2] Display current logged in user | Major | . | Akhil PB | Akhil PB
YARN-8592 | [UI2] rmip:port/ui2 endpoint shows a blank page in windows OS and Chrome browser | Major | . | Akhil S Naik | Akhil PB
YARN-8318 | [UI2] IP address in component page shows N/A | Major | yarn-ui-v2 | Yesha Vora | Yesha Vora
YARN-6966 | NodeManager metrics may return wrong negative values when NM restart | Major | . | Yang Wang | Szilard Nemeth
YARN-8603 | [UI2] Latest run application should be listed first in the RM UI | Major | yarn-ui-v2 | Sumana Sathish | Akhil PB
YARN-8608 | [UI2] No information available per application appAttempt about ‘Total Outstanding Resource Requests’ | Major | yarn-ui-v2 | Sumana Sathish | Akhil PB
YARN-8620 | [UI2] YARN Services UI new submission failures are not debuggable | Major | yarn-ui-v2 | Akhil PB | Akhil PB
YARN-8615 | [UI2] Resource Usage tab shows only memory related info. No info available for vcores/gpu. | Major | yarn-ui-v2 | Sumana Sathish | Akhil PB
HDFS-13792 | Fix FSN read/write lock metrics name | Trivial | documentation, metrics | Chao Sun | Chao Sun
YARN-8629 | Container cleanup fails while trying to delete Cgroups | Critical | . | Yesha Vora | Suma Shivaprasad
YARN-8407 | Container launch exception in AM log should be printed in ERROR level | Major | . | Yesha Vora | Yesha Vora
YARN-8399 | NodeManager is giving 403 GSS exception post upgrade to 3.1 in secure mode | Major | timelineservice | Sunil Govindan | Sunil Govindan
HDFS-13799 | TestEditLogTailer#testTriggersLogRollsForAllStandbyNN fails due to missing synchronization between rollEditsRpcExecutor and tailerThread shutdown | Minor | ha | Hrishikesh Gadre | Hrishikesh Gadre
HDFS-13786 | EC: Display erasure coding policy for sub-directories is not working | Major | erasure-coding | Souryakanta Dwivedy | Ayush Saxena
HDFS-13785 | EC: “removePolicy” is not working for built-in/system Erasure Code policies | Minor | documentation, erasure-coding | Souryakanta Dwivedy | Ayush Saxena
YARN-8633 | Update DataTables version in yarn-common in line with JQuery 3 upgrade | Major | yarn | Akhil PB | Akhil PB
YARN-8331 | Race condition in NM container launched after done | Major | . | Yang Wang | Pradeep Ambati
YARN-8521 | NPE in AllocationTagsManager when a container is removed more than once | Major | resourcemanager | Weiwei Yang | Weiwei Yang
YARN-8575 | Avoid committing allocation proposal to unavailable nodes in async scheduling | Major | capacityscheduler | Tao Yang | Tao Yang
HDFS-13795 | Fix potential NPE in InMemoryLevelDBAliasMapServer | Major | . | Virajith Jalaparti | Virajith Jalaparti
HDFS-13668 | FSPermissionChecker may throws AIOOE when check inode permission | Major | namenode | He Xiaoqiao | He Xiaoqiao
HADOOP-15638 | KMS Accept Queue Size default changed from 500 to 128 in Hadoop 3.x | Major | kms | Wei-Chiu Chuang | Wei-Chiu Chuang
HDFS-13823 | NameNode UI : “Utilities -> Browse the file system -> open a file -> Head the file” is not working | Major | ui | Nanda kumar | Nanda kumar
HDFS-13738 | fsck -list-corruptfileblocks has infinite loop if user is not privileged. | Major | tools | Wei-Chiu Chuang | Yuen-Kuei Hsueh
HDFS-13758 | DatanodeManager should throw exception if it has BlockRecoveryCommand but the block is not under construction | Major | namenode | Wei-Chiu Chuang | chencan
YARN-8614 | Fix few annotation typos in YarnConfiguration | Trivial | . | Sen Zhao | Sen Zhao
HDFS-13819 | TestDirectoryScanner#testDirectoryScannerInFederatedCluster is flaky | Minor | hdfs | Daniel Templeton | Daniel Templeton
YARN-8656 | container-executor should not write cgroup tasks files for docker containers | Major | . | Jim Brennan | Jim Brennan
YARN-8474 | sleeper service fails to launch with “Authentication Required” | Critical | yarn | Sumana Sathish | Billie Rinaldi
HDFS-13746 | Still occasional “Should be different group” failure in TestRefreshUserMappings#testGroupMappingRefresh | Major | . | Siyao Meng | Siyao Meng
YARN-8667 | Cleanup symlinks when container restarted by NM to solve issue “find: File system loop detected;” for tar ball artifacts. | Critical | . | Rohith Sharma K S | Chandni Singh
HDFS-10240 | Race between close/recoverLease leads to missing block | Major | . | zhouyingchao | Jinglun
HADOOP-15655 | Enhance KMS client retry behavior | Critical | kms | Kitti Nanasi | Kitti Nanasi
YARN-8612 | Fix NM Collector Service Port issue in YarnConfiguration | Major | ATSv2 | Prabha Manepalli | Prabha Manepalli
HDFS-13747 | Statistic for list_located_status is incremented incorrectly by listStatusIterator | Minor | hdfs-client | Todd Lipcon | Antal Mihalyi
HADOOP-8807 | Update README and website to reflect HADOOP-8662 | Trivial | documentation | Eli Collins | Andras Bokor
HADOOP-15674 | Test failure TestSSLHttpServer.testExcludedCiphers with TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 cipher suite | Major | common | Gabor Bota | Szilard Nemeth
YARN-8640 | Restore previous state in container-executor after failure | Major | . | Jim Brennan | Jim Brennan
YARN-8679 | [ATSv2] If HBase cluster is down for long time, high chances that NM ContainerManager dispatcher get blocked | Major | . | Rohith Sharma K S | Wangda Tan
HDFS-13772 | Erasure coding: Unnecessary NameNode Logs displaying for Enabling/Disabling Erasure coding policies which are already enabled/disabled | Trivial | erasure-coding | Souryakanta Dwivedy | Ayush Saxena
HADOOP-14314 | The OpenSolaris taxonomy link is dead in InterfaceClassification.md | Major | documentation | Daniel Templeton | Rui Gao
YARN-8649 | NPE in localizer hearbeat processing if a container is killed while localizing | Major | . | lujie | lujie
HDFS-13805 | Journal Nodes should allow to format non-empty directories with “-force” option | Major | journal-node | Surendra Singh Lilhore | Surendra Singh Lilhore
YARN-8632 | Threads in SLS quit without logging exception | Major | scheduler-load-simulator | Xianghao Lu | Xianghao Lu
MAPREDUCE-6861 | Add metrics tags for ShuffleClientMetrics | Major | . | Akira Ajisaka | Zoltan Siegl
YARN-8719 | Typo correction for yarn configuration in OpportunisticContainers(federation) docs | Major | documentation, federation | Y. SREENIVASULU REDDY | Y. SREENIVASULU REDDY
YARN-8675 | Setting hostname of docker container breaks with “host” networking mode for Apps which do not run as a YARN service | Major | . | Yesha Vora | Suma Shivaprasad
HADOOP-15633 | fs.TrashPolicyDefault: Can’t create trash directory | Major | common | Fei Hui | Fei Hui
HDFS-13858 | RBF: Add check to have single valid argument to safemode command | Major | federation | Soumyapn | Ayush Saxena
HDFS-13837 | Enable debug log for LeaseRenewer in TestDistributedFileSystem | Major | hdfs | Shweta | Shweta
HDFS-13731 | ReencryptionUpdater fails with ConcurrentModificationException during processCheckpoints | Major | encryption | Xiao Chen | Zsolt Venczel
YARN-8723 | Fix a typo in CS init error message when resource calculator is not correctly set | Minor | . | Weiwei Yang | Abhishek Modi
HADOOP-15705 | Typo in the definition of “stable” in the interface classification | Minor | . | Daniel Templeton | Daniel Templeton
HDFS-13863 | FsDatasetImpl should log DiskOutOfSpaceException | Major | hdfs | Fei Hui | Fei Hui
HADOOP-15698 | KMS log4j is not initialized properly at startup | Major | kms | Kitti Nanasi | Kitti Nanasi
HADOOP-15706 | Typo in compatibility doc: SHOUD -> SHOULD | Trivial | . | Daniel Templeton | Laszlo Kollar
HDFS-13027 | Handle possible NPEs due to deleted blocks in race condition | Major | namenode | Vinayakumar B | Vinayakumar B

### TESTS:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
MAPREDUCE-7066 | TestQueue fails on Java9 | Major | test | Takanobu Asanuma | Takanobu Asanuma
HADOOP-15313 | TestKMS should close providers | Major | kms, test | Xiao Chen | Xiao Chen
HDFS-13129 | Add a test for DfsAdmin refreshSuperUserGroupsConfiguration | Minor | namenode | Mukul Kumar Singh | Mukul Kumar Singh
HADOOP-14188 | Remove the usage of org.mockito.internal.util.reflection.Whitebox | Major | test | Akira Ajisaka | Ewan Higgs
HDFS-13503 | Fix TestFsck test failures on Windows | Major | hdfs | Xiao Liang | Xiao Liang
HDFS-13542 | TestBlockManager#testNeededReplicationWhileAppending fails due to improper cluster shutdown in TestBlockManager#testBlockManagerMachinesArray on Windows | Minor | . | Anbang Hu | Anbang Hu
HDFS-13551 | TestMiniDFSCluster#testClusterSetStorageCapacity does not shut down cluster | Minor | . | Anbang Hu | Anbang Hu
HDFS-11700 | TestHDFSServerPorts#testBackupNodePorts doesn’t pass on Windows | Minor | . | Anbang Hu | Anbang Hu
HDFS-13548 | TestResolveHdfsSymlink#testFcResolveAfs fails on Windows | Minor | . | Anbang Hu | Anbang Hu
HDFS-13567 | TestNameNodeMetrics#testGenerateEDEKTime,TestNameNodeMetrics#testResourceCheck should use a different cluster basedir | Minor | . | Anbang Hu | Anbang Hu
HDFS-13557 | TestDFSAdmin#testListOpenFiles fails on Windows | Minor | . | Anbang Hu | Anbang Hu
HDFS-13550 | TestDebugAdmin#testComputeMetaCommand fails on Windows | Minor | . | Anbang Hu | Anbang Hu
HDFS-13559 | TestBlockScanner does not close TestContext properly | Minor | . | Anbang Hu | Anbang Hu
HDFS-13570 | TestQuotaByStorageType,TestQuota,TestDFSOutputStream fail on Windows | Minor | . | Anbang Hu | Anbang Hu
HDFS-13558 | TestDatanodeHttpXFrame does not shut down cluster | Minor | . | Anbang Hu | Anbang Hu
HDFS-13554 | TestDatanodeRegistration#testForcedRegistration does not shut down cluster | Minor | . | Anbang Hu | Anbang Hu
HDFS-13556 | TestNestedEncryptionZones does not shut down cluster | Minor | . | Anbang Hu | Anbang Hu
HDFS-13560 | Insufficient system resources exist to complete the requested service for some tests on Windows | Minor | . | Anbang Hu | Anbang Hu
HDFS-13592 | TestNameNodePrunesMissingStorages#testNameNodePrunesUnreportedStorages does not shut down cluster properly | Minor | . | Anbang Hu | Anbang Hu
HDFS-13593 | TestBlockReaderLocalLegacy#testBlockReaderLocalLegacyWithAppend fails on Windows | Minor | test | Anbang Hu | Anbang Hu
HDFS-13587 | TestQuorumJournalManager fails on Windows | Minor | . | Anbang Hu | Anbang Hu
HDFS-13619 | TestAuditLoggerWithCommands fails on Windows | Minor | test | Anbang Hu | Anbang Hu
HDFS-13620 | Randomize the test directory path for TestHDFSFileSystemContract | Minor | . | Anbang Hu | Anbang Hu
HDFS-13627 | TestErasureCodingExerciseAPIs fails on Windows | Minor | . | Anbang Hu | Anbang Hu
HDFS-13591 | TestDFSShell#testSetrepLow fails on Windows | Minor | . | Anbang Hu | Anbang Hu
HDFS-13632 | Randomize baseDir for MiniJournalCluster in MiniQJMHACluster for TestDFSAdminWithHA | Minor | . | Anbang Hu | Anbang Hu
HDFS-13629 | Some tests in TestDiskBalancerCommand fail on Windows due to MiniDFSCluster path conflict and improper path usage | Minor | . | Anbang Hu | Anbang Hu
HDFS-13631 | TestDFSAdmin#testCheckNumOfBlocksInReportCommand should use a separate MiniDFSCluster path | Minor | . | Anbang Hu | Anbang Hu
HDFS-13651 | TestReencryptionHandler fails on Windows | Minor | . | Anbang Hu | Anbang Hu
HDFS-13648 | Fix TestGetConf#testGetJournalNodes on Windows due to a mismatch line separator | Major | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola
MAPREDUCE-7102 | Fix TestJavaSerialization for Windows due a mismatch line separator | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola
MAPREDUCE-7105 | Fix TestNativeCollectorOnlyHandler.testOnCall on Windows because of the path format | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola
HDFS-13652 | Randomize baseDir for MiniDFSCluster in TestBlockScanner | Minor | . | Anbang Hu | Anbang Hu
HDFS-13649 | Randomize baseDir for MiniDFSCluster in TestReconstructStripedFile and TestReconstructStripedFileWithRandomECPolicy | Minor | . | Anbang Hu | Anbang Hu
HDFS-13650 | Randomize baseDir for MiniDFSCluster in TestDFSStripedInputStream and TestDFSStripedInputStreamWithRandomECPolicy | Minor | . | Anbang Hu | Anbang Hu
HADOOP-15520 | Add tests for various org.apache.hadoop.util classes | Minor | test, util | Arash Nabili | Arash Nabili
YARN-8370 | Some Node Manager tests fail on Windows due to improper path/file separator | Minor | . | Anbang Hu | Anbang Hu
YARN-8422 | TestAMSimulator failing with NPE | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola
HADOOP-15532 | TestBasicDiskValidator fails with NoSuchFileException | Minor | . | Íñigo Goiri | Giovanni Matteo Fumarola
HDFS-13563 | TestDFSAdminWithHA times out on Windows | Minor | . | Anbang Hu | Lukas Majercak
HDFS-13681 | Fix TestStartup.testNNFailToStartOnReadOnlyNNDir test failure on Windows | Major | test | Xiao Liang | Xiao Liang

### SUB-TASKS:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
HDFS-10794 | [SPS]: Provide storage policy satisfy worker at DN for co-ordinating the block storage movement work | Major | datanode, namenode | Rakesh R | Rakesh R
HDFS-10800 | [SPS]: Daemon thread in Namenode to find blocks placed in other storage than what the policy specifies | Major | namenode | Uma Maheswara Rao G | Uma Maheswara Rao G
HDFS-10801 | [SPS]: Protocol buffer changes for sending storage movement commands from NN to DN | Major | datanode, namenode | Uma Maheswara Rao G | Rakesh R
HDFS-10884 | [SPS]: Add block movement tracker to track the completion of block movement future tasks at DN | Major | datanode | Rakesh R | Rakesh R
HDFS-10954 | [SPS]: Provide mechanism to send blocks movement result back to NN from coordinator DN | Major | datanode, namenode | Rakesh R | Rakesh R
HDFS-11029 | [SPS]:Provide retry mechanism for the blocks which were failed while moving its storage at DNs | Major | namenode | Uma Maheswara Rao G | Uma Maheswara Rao G
HDFS-11068 | [SPS]: Provide unique trackID to track the block movement sends to coordinator | Major | datanode, namenode | Rakesh R | Rakesh R
HDFS-10802 | [SPS]: Add satisfyStoragePolicy API in HdfsAdmin | Major | hdfs-client | Uma Maheswara Rao G | Yuanbo Liu
HDFS-11151 | [SPS]: StoragePolicySatisfier should gracefully handle when there is no target node with the required storage type | Major | datanode, namenode | Rakesh R | Rakesh R
HDFS-10885 | [SPS]: Mover tool should not be allowed to run when Storage Policy Satisfier is on | Major | datanode, namenode | Wei Zhou | Wei Zhou
HDFS-11123 | [SPS] Make storage policy satisfier daemon work on/off dynamically | Major | datanode, namenode | Uma Maheswara Rao G | Uma Maheswara Rao G
HDFS-11032 | [SPS]: Handling of block movement failure at the coordinator datanode | Major | datanode | Rakesh R | Rakesh R
HDFS-11248 | [SPS]: Handle partial block location movements | Major | datanode, namenode | Rakesh R | Rakesh R
HDFS-11193 | [SPS]: Erasure coded files should be considered for satisfying storage policy | Major | namenode | Rakesh R | Rakesh R
HDFS-11289 | [SPS]: Make SPS movement monitor timeouts configurable | Major | namenode | Uma Maheswara Rao G | Uma Maheswara Rao G
HDFS-11293 | [SPS]: Local DN should be given preference as source node, when target available in same node | Critical | namenode | Yuanbo Liu | Uma Maheswara Rao G
HDFS-11150 | [SPS]: Provide persistence when satisfying storage policy. | Major | datanode, namenode | Yuanbo Liu | Yuanbo Liu
HDFS-11186 | [SPS]: Daemon thread of SPS should start only in Active NN | Major | datanode, namenode | Wei Zhou | Wei Zhou
HDFS-11309 | [SPS]: chooseTargetTypeInSameNode should pass accurate block size to chooseStorage4Block while choosing target | Major | namenode | Uma Maheswara Rao G | Uma Maheswara Rao G
HDFS-11243 | [SPS]: Add a protocol command from NN to DN for dropping the SPS work and queues | Major | datanode, namenode | Uma Maheswara Rao G | Uma Maheswara Rao G
HDFS-11239 | [SPS]: Check Mover file ID lease also to determine whether Mover is running | Major | datanode, namenode | Wei Zhou | Wei Zhou
HDFS-11336 | [SPS]: Remove xAttrs when movements done or SPS disabled | Major | datanode, namenode | Yuanbo Liu | Yuanbo Liu
HDFS-11338 | [SPS]: Fix timeout issue in unit tests caused by longger NN down time | Major | datanode, namenode | Wei Zhou | Rakesh R
HDFS-11334 | [SPS]: NN switch and rescheduling movements can lead to have more than one coordinator for same file blocks | Major | datanode, namenode | Uma Maheswara Rao G | Rakesh R
HDFS-11572 | [SPS]: SPS should clean Xattrs when no blocks required to satisfy for a file | Major | namenode | Uma Maheswara Rao G | Uma Maheswara Rao G
HDFS-11695 | [SPS]: Namenode failed to start while loading SPS xAttrs from the edits log. | Blocker | namenode | Surendra Singh Lilhore | Surendra Singh Lilhore
HDFS-11883 | [SPS] : Handle NPE in BlockStorageMovementTracker when dropSPSWork() called | Major | datanode | Surendra Singh Lilhore | Surendra Singh Lilhore
HDFS-11762 | [SPS] : Empty files should be ignored in StoragePolicySatisfier. | Major | namenode | Surendra Singh Lilhore | Surendra Singh Lilhore
HDFS-11726 | [SPS] : StoragePolicySatisfier should not select same storage type as source and destination in same datanode. | Major | namenode | Surendra Singh Lilhore | Surendra Singh Lilhore
HDFS-11966 | [SPS] Correct the log in BlockStorageMovementAttemptedItems#blockStorageMovementResultCheck | Minor | namenode | Surendra Singh Lilhore | Surendra Singh Lilhore
HDFS-11670 | [SPS]: Add CLI command for satisfy storage policy operations | Major | datanode, namenode | Surendra Singh Lilhore | Surendra Singh Lilhore
HDFS-11965 | [SPS]: Should give chance to satisfy the low redundant blocks before removing the xattr | Major | namenode | Surendra Singh Lilhore | Surendra Singh Lilhore
HDFS-11264 | [SPS]: Double checks to ensure that SPS/Mover are not running together | Major | datanode, namenode | Wei Zhou | Rakesh R
HDFS-11874 | [SPS]: Document the SPS feature | Major | documentation | Uma Maheswara Rao G | Uma Maheswara Rao G
HDFS-12146 | [SPS] : Fix TestStoragePolicySatisfierWithStripedFile#testSPSWhenFileHasLowRedundancyBlocks | Major | namenode | Surendra Singh Lilhore | Surendra Singh Lilhore
HDFS-12141 | [SPS]: Fix checkstyle warnings | Major | datanode, namenode | Rakesh R | Rakesh R
HDFS-12152 | [SPS]: Re-arrange StoragePolicySatisfyWorker stopping sequence to improve thread cleanup time | Minor | datanode, namenode | Rakesh R | Rakesh R
HDFS-12214 | [SPS]: Fix review comments of StoragePolicySatisfier feature | Major | datanode, namenode | Rakesh R | Rakesh R
HDFS-12225 | [SPS]: Optimize extended attributes for tracking SPS movements | Major | datanode, namenode | Uma Maheswara Rao G | Surendra Singh Lilhore
HDFS-12291 | [SPS]: Provide a mechanism to recursively iterate and satisfy storage policy of all the files under the given dir | Major | datanode, namenode | Rakesh R | Surendra Singh Lilhore
HDFS-12570 | [SPS]: Refactor Co-ordinator datanode logic to track the block storage movements | Major | datanode, namenode | Rakesh R | Rakesh R
HDFS-12556 | [SPS] : Block movement analysis should be done in read lock. | Major | datanode, namenode | Surendra Singh Lilhore | Surendra Singh Lilhore
HDFS-12310 | [SPS]: Provide an option to track the status of in progress requests | Major | datanode, namenode | Uma Maheswara Rao G | Surendra Singh Lilhore
HDFS-12790 | [SPS]: Rebasing HDFS-10285 branch after HDFS-10467, HDFS-12599 and HDFS-11968 commits | Major | datanode, namenode | Rakesh R | Rakesh R
HDFS-12106 | [SPS]: Improve storage policy satisfier configurations | Major | namenode | Surendra Singh Lilhore | Surendra Singh Lilhore
HDFS-12955 | [SPS]: Move SPS classes to a separate package | Trivial | nn | Uma Maheswara Rao G | Rakesh R
HDFS-12982 | [SPS]: Reduce the locking and cleanup the Namesystem access | Major | datanode, namenode | Rakesh R | Rakesh R
HDFS-12911 | [SPS]: Modularize the SPS code and expose necessary interfaces for external/internal implementations. | Major | datanode, namenode | Uma Maheswara Rao G | Uma Maheswara Rao G
HDFS-13025 | [SPS]: Implement a mechanism to scan the files for external SPS | Major | namenode | Uma Maheswara Rao G | Uma Maheswara Rao G
HDFS-13033 | [SPS]: Implement a mechanism to do file block movements for external SPS | Major | . | Rakesh R | Rakesh R
HDFS-13057 | [SPS]: Revisit configurations to make SPS service modes internal/external/none | Blocker | . | Rakesh R | Rakesh R
HDFS-13075 | [SPS]: Provide External Context implementation. | Major | . | Uma Maheswara Rao G | Uma Maheswara Rao G
HDFS-13050 | [SPS] : Create start/stop script to start external SPS process. | Blocker | namenode | Surendra Singh Lilhore | Surendra Singh Lilhore
HDFS-13077 | [SPS]: Fix review comments of external storage policy satisfier | Major | . | Rakesh R | Rakesh R
HDFS-13097 | [SPS]: Fix the branch review comments(Part1) | Major | namenode | Surendra Singh Lilhore | Surendra Singh Lilhore
HDFS-13110 | [SPS]: Reduce the number of APIs in NamenodeProtocol used by external satisfier | Major | . | Rakesh R | Rakesh R
HDFS-13166 | [SPS]: Implement caching mechanism to keep LIVE datanodes to minimize costly getLiveDatanodeStorageReport() calls | Major | . | Rakesh R | Rakesh R
HADOOP-15262 | AliyunOSS: move files under a directory in parallel when rename a directory | Major | fs/oss | wujinhu | wujinhu
YARN-8002 | Support NOT_SELF and ALL namespace types for allocation tag | Major | resourcemanager | Weiwei Yang | Weiwei Yang
HDFS-13307 | RBF: Improve the use of setQuota command | Major | . | liuhongtong | liuhongtong
YARN-7497 | Add file system based scheduler configuration store | Major | yarn | Jiandan Yang | Jiandan Yang
HDFS-13289 | RBF: TestConnectionManager#testCleanup() test case need correction | Minor | . | Dibyendu Karmakar | Dibyendu Karmakar
HADOOP-14758 | S3GuardTool.prune to handle UnsupportedOperationException | Trivial | fs/s3 | Steve Loughran | Gabor Bota
HDFS-13364 | RBF: Support NamenodeProtocol in the Router | Major | . | Íñigo Goiri | Íñigo Goiri
YARN-8013 | Support application tags when defining application namespaces for placement constraints | Major | . | Weiwei Yang | Weiwei Yang
YARN-7946 | Update TimelineServerV2 doc as per YARN-7919 | Major | . | Rohith Sharma K S | Haibo Chen
YARN-6936 | [Atsv2] Retrospect storing entities into sub application table from client perspective | Major | . | Rohith Sharma K S | Rohith Sharma K S
HDFS-13353 | RBF: TestRouterWebHDFSContractCreate failed | Major | test | Takanobu Asanuma | Takanobu Asanuma
HADOOP-15367 | Update the initialization code in the docker hadoop-runner baseimage | Major | . | Elek, Marton | Elek, Marton
HADOOP-14759 | S3GuardTool prune to prune specific bucket entries | Minor | fs/s3 | Steve Loughran | Gabor Bota
YARN-8107 | Give an informative message when incorrect format is used in ATSv2 filter attributes | Major | ATSv2 | Charan Hebri | Rohith Sharma K S
YARN-8048 | Support auto-spawning of admin configured services during bootstrap of rm/apiserver | Major | . | Rohith Sharma K S | Rohith Sharma K S
HDFS-13402 | RBF: Fix java doc for StateStoreFileSystemImpl | Minor | hdfs | Yiran Wu | Yiran Wu
YARN-7574 | Add support for Node Labels on Auto Created Leaf Queue Template | Major | capacity scheduler | Suma Shivaprasad | Suma Shivaprasad
HDFS-13380 | RBF: mv/rm fail after the directory exceeded the quota limit | Major | . | Weiwei Wu | Yiqun Lin
YARN-7667 | Docker Stop grace period should be configurable | Major | yarn | Eric Badger | Eric Badger
HDFS-13410 | RBF: Support federation with no subclusters | Minor | . | Íñigo Goiri | Íñigo Goiri
HDFS-13384 | RBF: Improve timeout RPC call mechanism | Minor | . | Íñigo Goiri | Íñigo Goiri
HADOOP-15376 | Remove double semi colons on imports that make Clover fall over. | Minor | . | Ewan Higgs | Ewan Higgs
YARN-7973 | Support ContainerRelaunch for Docker containers | Major | . | Shane Kumpf | Shane Kumpf
YARN-7941 | Transitive dependencies for component are not resolved | Major | . | Rohith Sharma K S | Billie Rinaldi
HDFS-13045 | RBF: Improve error message returned from subcluster | Minor | . | Wei Yan | Íñigo Goiri
HDFS-13428 | RBF: Remove LinkedList From StateStoreFileImpl.java | Trivial | federation | BELUGA BEHR | BELUGA BEHR
HDFS-13386 | RBF: Wrong date information in list file(-ls) result | Minor | . | Dibyendu Karmakar | Dibyendu Karmakar
YARN-7221 | Add security check for privileged docker container | Major | security | Eric Yang | Eric Yang
HADOOP-15350 | [JDK10] Update maven plugin tools to fix compile error in hadoop-maven-plugins module | Major | build | Akira Ajisaka | Takanobu Asanuma
YARN-7931 | [atsv2 read acls] Include domain table creation as part of schema creator | Major | . | Vrushali C | Vrushali C
YARN-7936 | Add default service AM Xmx | Major | . | Jian He | Jian He
YARN-8018 | Yarn Service Upgrade: Add support for initiating service upgrade | Major | . | Chandni Singh | Chandni Singh
HADOOP-14999 | AliyunOSS: provide one asynchronous multi-part based uploading mechanism | Major | fs/oss | Genmao Yu | Genmao Yu
YARN-7142 | Support placement policy in yarn native services | Major | yarn-native-services | Billie Rinaldi | Gour Saha
YARN-8138 | Add unit test to validate queue priority preemption works under node partition. | Minor | . | Charan Hebri | Zian Chen
YARN-8060 | Create default readiness check for service components | Major | yarn-native-services | Billie Rinaldi | Billie Rinaldi
HDFS-13435 | RBF: Improve the error loggings for printing the stack trace | Major | . | Yiqun Lin | Yiqun Lin
YARN-8126 | Support auto-spawning of admin configured services during bootstrap of RM | Major | . | Rohith Sharma K S | Rohith Sharma K S
YARN-7996 | Allow user supplied Docker client configurations with YARN native services | Major | . | Shane Kumpf | Shane Kumpf
YARN-8134 | Support specifying node resources in SLS | Major | . | Abhishek Modi | Abhishek Modi
HDFS-13466 | RBF: Add more router-related information to the UI | Minor | . | Wei Yan | Wei Yan
YARN-5888 | [UI2] Improve unit tests for new YARN UI | Minor | yarn-ui-v2 | Akhil PB | Akhil PB
HDFS-13453 | RBF: getMountPointDates should fetch latest subdir time/date when parent dir is not present but /parent/child dirs are present in mount table | Major | . | Dibyendu Karmakar | Dibyendu Karmakar
YARN-8186 | [Router] Federation: routing getAppState REST invocations transparently to multiple RMs | Major | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola
YARN-8137 | Parallelize node addition in SLS | Major | . | Abhishek Modi | Abhishek Modi
YARN-8111 | Simplify PlacementConstraints API by removing allocationTagToIntraApp | Minor | resourcemanager | Weiwei Yang | Weiwei Yang
YARN-8064 | Docker “.cmd” files should not be put in hadoop.tmp.dir | Critical | . | Eric Badger | Eric Badger
HDFS-13478 | RBF: Disabled Nameservice store API | Major | . | Íñigo Goiri | Íñigo Goiri
YARN-8177 | Documentation changes for auto creation of Leaf Queues with node label | Major | . | Suma Shivaprasad | Suma Shivaprasad
HADOOP-14756 | S3Guard: expose capability query in MetadataStore and add tests of authoritative mode | Major | fs/s3 | Steve Loughran | Gabor Bota
HDFS-13490 | RBF: Fix setSafeMode in the Router | Major | . | Íñigo Goiri | Íñigo Goiri
HDFS-13484 | RBF: Disable Nameservices from the federation | Major | . | Íñigo Goiri | Íñigo Goiri
HADOOP-15404 | Remove multibyte characters in DataNodeUsageReportUtil | Major | . | Takanobu Asanuma | Takanobu Asanuma
YARN-7939 | Yarn Service Upgrade: add support to upgrade a component instance | Major | . | Chandni Singh | Chandni Singh
HDFS-13326 | RBF: Improve the interfaces to modify and view mount tables | Minor | . | Wei Yan | Gang Li
YARN-8122 | Component health threshold monitor | Major | . | Gour Saha | Gour Saha
HDFS-13499 | RBF: Show disabled name services in the UI | Minor | . | Íñigo Goiri | Íñigo Goiri
HADOOP-13756 | LocalMetadataStore#put(DirListingMetadata) should also put file metadata into fileHash. | Major | fs/s3, test | Lei (Eddy) Xu | Gabor Bota
YARN-8215 | ATS v2 returns invalid YARN_CONTAINER_ALLOCATED_HOST_HTTP_ADDRESS from NM | Critical | ATSv2 | Yesha Vora | Rohith Sharma K S
YARN-8152 | Add chart in SLS to illustrate the throughput of the scheduler | Major | scheduler-load-simulator | Weiwei Yang | Tao Yang
YARN-8204 | Yarn Service Upgrade: Add a flag to disable upgrade | Major | . | Chandni Singh | Chandni Singh
YARN-7781 | Update YARN-Services-Examples.md to be in sync with the latest code | Major | . | Gour Saha | Gour Saha
HDFS-13508 | RBF: Normalize paths (automatically) when adding, updating, removing or listing mount table entries | Minor | . | Ekanth Sethuramalingam | Ekanth Sethuramalingam
HDFS-13434 | RBF: Fix dead links in RBF document | Major | documentation | Akira Ajisaka | Chetna Chaudhari
HDFS-13165 | [SPS]: Collects successfully moved block details via IBR | Major | . | Rakesh R | Rakesh R
YARN-8195 | Fix constraint cardinality check in the presence of multiple target allocation tags | Critical | . | Weiwei Yang | Weiwei Yang
HADOOP-15239 | S3ABlockOutputStream.flush() be no-op when stream closed | Trivial | fs/s3 | Steve Loughran | Gabor Bota
YARN-8228 | Docker does not support hostnames greater than 64 characters | Critical | yarn-native-services | Yesha Vora | Shane Kumpf
YARN-8212 | Pending backlog for async allocation threads should be configurable | Major | . | Weiwei Yang | Tao Yang
YARN-2674 | Distributed shell AM may re-launch containers if RM work preserving restart happens | Major | applications, resourcemanager | Chun Chen | Shane Kumpf
HDFS-13488 | RBF: Reject requests when a Router is overloaded | Major | . | Íñigo Goiri | Íñigo Goiri
YARN-8113 | Update placement constraints doc with application namespaces and inter-app constraints | Major | documentation | Weiwei Yang | Weiwei Yang
YARN-8194 | Exception when reinitializing a container using LinuxContainerExecutor | Blocker | . | Chandni Singh | Chandni Singh
YARN-8151 | Yarn RM Epoch should wrap around | Major | . | Young Chen | Young Chen
YARN-7961 | Improve status response when yarn application is destroyed | Major | yarn-native-services | Yesha Vora | Gour Saha
HDFS-13525 | RBF: Add unit test TestStateStoreDisabledNameservice | Major | . | Yiqun Lin | Yiqun Lin
HADOOP-15444 | ITestS3GuardToolDynamo should only run with -Ddynamo | Major | . | Aaron Fabbri | Aaron Fabbri
YARN-5151 | [UI2] Support kill application from new YARN UI | Major | . | Wangda Tan | Gergely Novák
YARN-8253 | HTTPS Ats v2 api call fails with “bad HTTP parsed” | Critical | ATSv2 | Yesha Vora | Charan Hebri
YARN-8207 | Docker container launch use popen have risk of shell expansion | Blocker | yarn-native-services | Eric Yang | Eric Yang
HADOOP-13649 | s3guard: implement time-based (TTL) expiry for LocalMetadataStore | Minor | fs/s3 | Aaron Fabbri | Gabor Bota
HADOOP-15420 | s3guard ITestS3GuardToolLocal failures in diff tests | Minor | . | Aaron Fabbri | Gabor Bota
YARN-8261 | Docker container launch fails due to .cmd file creation failure | Blocker | . | Eric Badger | Jason Lowe
HADOOP-15454 | TestRollingFileSystemSinkWithLocal fails on Windows | Major | test | Xiao Liang | Xiao Liang
HDFS-13346 | RBF: Fix synchronization of router quota and nameservice quota | Major | . | liuhongtong | Yiqun Lin
YARN-8243 | Flex down should remove instance with largest component instance ID first | Critical | yarn-native-services | Gour Saha | Gour Saha
YARN-7654 | Support ENTRY_POINT for docker container | Blocker | yarn | Eric Yang | Eric Yang
YARN-8247 | Incorrect HTTP status code returned by ATSv2 for non-whitelisted users | Critical | ATSv2 | Charan Hebri | Rohith Sharma K S
YARN-8130 | Race condition when container events are published for KILLED applications | Major | ATSv2 | Charan Hebri | Rohith Sharma K S
YARN-8081 | Yarn Service Upgrade: Add support to upgrade a component | Major | . | Chandni Singh | Chandni Singh
YARN-8284 | get_docker_command refactoring | Minor | . | Jason Lowe | Eric Badger
YARN-7933 | [atsv2 read acls] Add TimelineWriter#writeDomain | Major | . | Vrushali C | Rohith Sharma K S
YARN-7900 | [AMRMProxy] AMRMClientRelayer for stateful FederationInterceptor | Major | . | Botong Huang | Botong Huang
YARN-8206 | Sending a kill does not immediately kill docker containers | Major | . | Eric Badger | Eric Badger
YARN-7960 | Add no-new-privileges flag to docker run | Major | . | Eric Badger | Eric Badger
YARN-8285 | Remove unused environment variables from the Docker runtime | Trivial | . | Shane Kumpf | Eric Badger
YARN-4599 | Set OOM control for memory cgroups | Major | nodemanager | Karthik Kambatla | Miklos Szegedi
YARN-7530 | hadoop-yarn-services-api should be part of hadoop-yarn-services | Blocker | yarn-native-services | Eric Yang | Chandni Singh
YARN-6919 | Add default volume mount list | Major | yarn | Eric Badger | Eric Badger
HADOOP-15494 | TestRawLocalFileSystemContract fails on Windows | Minor | test | Anbang Hu | Anbang Hu
HADOOP-15498 | TestHadoopArchiveLogs (#testGenerateScript, #testPrepareWorkingDir) fails on Windows | Minor | . | Anbang Hu | Anbang Hu
HADOOP-15497 | TestTrash should use proper test path to avoid failing on Windows | Minor | . | Anbang Hu | Anbang Hu
YARN-8329 | Docker client configuration can still be set incorrectly | Major | . | Shane Kumpf | Shane Kumpf
HADOOP-14946 | S3Guard testPruneCommandCLI can fail | Major | fs/s3 | Steve Loughran | Gabor Bota
HADOOP-15480 | AbstractS3GuardToolTestBase.testDiffCommand fails when using dynamo | Major | fs/s3 | Gabor Bota | Gabor Bota
HDFS-12978 | Fine-grained locking while consuming journal stream. | Major | namenode | Konstantin Shvachko | Konstantin Shvachko
YARN-8384 | stdout.txt, stderr.txt logs of a launched docker container is coming with primary group of submit user instead of hadoop | Critical | yarn-native-services | Sunil Govindan | Eric Yang
YARN-8349 | Remove YARN registry entries when a service is killed by the RM | Critical | yarn-native-services | Shane Kumpf | Billie Rinaldi
HDFS-13637 | RBF: Router fails when threadIndex (in ConnectionPool) wraps around Integer.MIN_VALUE | Critical | federation | CR Hota | CR Hota
YARN-8342 | Using docker image from a non-privileged registry, the launch_command is not honored | Critical | . | Wangda Tan | Eric Yang
HDFS-13281 | Namenode#createFile should be /.reserved/raw/ aware. | Critical | encryption | Rushabh S Shah | Rushabh S Shah
YARN-4677 | RMNodeResourceUpdateEvent update from scheduler can lead to race condition | Major | graceful, resourcemanager, scheduler | Brook Zhou | Wilfred Spiegelenburg
HADOOP-15137 | ClassNotFoundException: org.apache.hadoop.yarn.server.api.DistributedSchedulingAMProtocol when using hadoop-client-minicluster | Major | . | Jeff Zhang | Bharat Viswanadham
HADOOP-15514 | NoClassDefFoundError for TimelineCollectorManager when starting MiniYARNCluster | Major | . | Jeff Zhang | Rohith Sharma K S
HADOOP-15513 | Add additional test cases to cover some corner cases for FileUtil#symlink | Major | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola
HADOOP-15516 | Add test cases to cover FileUtil#readLink | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola
HADOOP-15506 | Upgrade Azure Storage Sdk version to 7.0.0 and update corresponding code blocks | Minor | fs/azure | Esfandiar Manii | Esfandiar Manii
YARN-6931 | Make the aggregation interval in AppLevelTimelineCollector configurable | Minor | timelineserver | Haibo Chen | Abhishek Modi
HADOOP-15529 | ContainerLaunch#testInvalidEnvVariableSubstitutionType is not supported in Windows | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola
YARN-8411 | Enable stopped system services to be started during RM start | Critical | . | Billie Rinaldi | Billie Rinaldi
YARN-8259 | Revisit liveliness checks for Docker containers | Blocker | . | Shane Kumpf | Shane Kumpf
HADOOP-15537 | Clean up ContainerLaunch and ContainerExecutor pre-HADOOP-15528 | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola
HDFS-13186 | [PROVIDED Phase 2] Multipart Uploader API | Major | . | Ewan Higgs | Ewan Higgs
HADOOP-15533 | Make WASB listStatus messages consistent | Trivial | fs/azure | Esfandiar Manii | Esfandiar Manii
HADOOP-14918 | Remove the Local Dynamo DB test option | Major | fs/s3 | Steve Loughran | Gabor Bota
HADOOP-14396 | Add builder interface to FileContext | Major | fs | Lei (Eddy) Xu | Lei (Eddy) Xu
HADOOP-15458 | TestLocalFileSystem#testFSOutputStreamBuilder fails on Windows | Minor | test | Xiao Liang | Xiao Liang
HADOOP-15416 | s3guard diff assert failure if source path not found | Minor | fs/s3 | Steve Loughran | Gabor Bota
HADOOP-15423 | Merge fileCache and dirCache into one single cache in LocalMetadataStore | Minor | . | Gabor Bota | Gabor Bota
YARN-8465 | Dshell docker container gets marked as lost after NM restart | Major | yarn-native-services | Yesha Vora | Shane Kumpf
YARN-8485 | Priviledged container app launch is failing intermittently | Major | yarn-native-services | Yesha Vora | Eric Yang
HDFS-13381 | [SPS]: Use DFSUtilClient#makePathFromFileId() to prepare satisfier file path | Major | . | Rakesh R | Rakesh R
HADOOP-15215 | s3guard set-capacity command to fail on read/write of 0 | Minor | fs/s3 | Steve Loughran | Gabor Bota
HDFS-13528 | RBF: If a directory exceeds quota limit then quota usage is not refreshed for other mount entries | Major | . | Dibyendu Karmakar | Dibyendu Karmakar
YARN-7556 | Fair scheduler configuration should allow resource types in the minResources and maxResources properties | Critical | fairscheduler | Daniel Templeton | Szilard Nemeth
HDFS-13710 | RBF: setQuota and getQuotaUsage should check the dfs.federation.router.quota.enable | Major | federation, hdfs | yanghuafeng | yanghuafeng
YARN-7899 | [AMRMProxy] Stateful FederationInterceptor for pending requests | Major | . | Botong Huang | Botong Huang
HDFS-13726 | RBF: Fix RBF configuration links | Minor | documentation | Takanobu Asanuma | Takanobu Asanuma
HDFS-13475 | RBF: Admin cannot enforce Router enter SafeMode | Major | . | Wei Yan | Chao Sun
YARN-8299 | Yarn Service Upgrade: Add GET APIs that returns instances matching query params | Major | . | Chandni Singh | Chandni Singh
HDFS-13733 | RBF: Add Web UI configurations and descriptions to RBF document | Minor | documentation | Takanobu Asanuma | Takanobu Asanuma
YARN-6995 | Improve use of ResourceNotFoundException in resource types code | Minor | nodemanager, resourcemanager | Daniel Templeton | Szilard Nemeth
HDFS-13743 | RBF: Router throws NullPointerException due to the invalid initialization of MountTableResolver | Major | . | Takanobu Asanuma | Takanobu Asanuma
YARN-8301 | Yarn Service Upgrade: Add documentation | Critical | . | Chandni Singh | Chandni Singh
HDFS-13076 | [SPS]: Cleanup work for HDFS-10285 | Major | . | Rakesh R | Rakesh R
HDFS-13583 | RBF: Router admin clrQuota is not synchronized with nameservice | Major | . | Dibyendu Karmakar | Dibyendu Karmakar
YARN-8546 | Resource leak caused by a reserved container being released more than once under async scheduling | Major | capacity scheduler | Weiwei Yang | Tao Yang
YARN-8175 | Add support for Node Labels in SLS | Major | . | Abhishek Modi | Abhishek Modi
HDFS-13084 | [SPS]: Fix the branch review comments | Major | . | Uma Maheswara Rao G | Rakesh R
YARN-8263 | DockerClient still touches hadoop.tmp.dir | Minor | . | Jason Lowe | Craig Condit
YARN-7159 | Normalize unit of resource objects in RM to avoid unit conversion in critical path | Critical | nodemanager, resourcemanager | Wangda Tan | Manikandan R
YARN-8287 | Update documentation and yarn-default related to the Docker runtime | Minor | . | Shane Kumpf | Craig Condit
YARN-8624 | Cleanup ENTRYPOINT documentation | Minor | . | Craig Condit | Craig Condit
YARN-7089 | Mark the log-aggregation-controller APIs as public | Major | . | Xuan Gong | Zian Chen
HADOOP-15400 | Improve S3Guard documentation on Authoritative Mode implementation | Minor | fs/s3 | Aaron Fabbri | Gabor Bota
YARN-8136 | Add version attribute to site doc examples and quickstart | Major | site | Gour Saha | Eric Yang
YARN-8588 | Logging improvements for better debuggability | Major | . | Suma Shivaprasad | Suma Shivaprasad
YARN-8520 | Document best practice for user management | Major | documentation, yarn | Eric Yang | Eric Yang
HDFS-13808 | [SPS]: Remove unwanted FSNamesystem #isFileOpenedForWrite() and #getFileInfo() function | Minor | . | Rakesh R | Rakesh R
HADOOP-15576 | S3A Multipart Uploader to work with S3Guard and encryption | Blocker | fs/s3 | Steve Loughran | Ewan Higgs
YARN-8561 | [Submarine] Initial implementation: Training job submission and job history retrieval | Major | . | Wangda Tan | Wangda Tan
HADOOP-15645 | ITestS3GuardToolLocal.testDiffCommand fails if bucket has per-bucket binding to DDB | Blocker | fs/s3 | Steve Loughran | Steve Loughran
YARN-7417 | re-factory IndexedFileAggregatedLogsBlock and TFileAggregatedLogsBlock to remove duplicate codes | Major | . | Xuan Gong | Zian Chen
YARN-8160 | Yarn Service Upgrade: Support upgrade of service that use docker containers | Major | . | Chandni Singh | Chandni Singh
HADOOP-15552 | Move logging APIs over to slf4j in hadoop-tools - Part2 | Major | . | Giovanni Matteo Fumarola | Ian Pickering
HADOOP-15642 | Update aws-sdk version to 1.11.375 | Blocker | build, fs/s3 | Steve Loughran | Steve Loughran
HADOOP-14154 | Persist isAuthoritative bit in DynamoDBMetaStore (authoritative mode support) | Minor | fs/s3 | Rajesh Balamohan | Gabor Bota
HADOOP-14624 | Add GenericTestUtils.DelayAnswer that accept slf4j logger API | Major | . | Wenxin He | Wenxin He
HDFS-13750 | RBF: Router ID in RouterRpcClient is always null | Major | . | Takanobu Asanuma | Takanobu Asanuma
YARN-8129 | Improve error message for invalid value in fields attribute | Minor | ATSv2 | Charan Hebri | Abhishek Modi
YARN-7494 | Add muti-node lookup mechanism and pluggable nodes sorting policies to optimize placement decision | Major | capacity scheduler | Sunil Govindan | Sunil Govindan
YARN-8298 | Yarn Service Upgrade: Support express upgrade of a service | Major | . | Chandni Singh | Chandni Singh
YARN-8015 | Support all types of placement constraint support for Capacity Scheduler | Critical | capacity scheduler | Weiwei Yang | Weiwei Yang
HDFS-13848 | Refactor NameNode failover proxy providers | Major | ha, hdfs-client | Konstantin Shvachko | Konstantin Shvachko
YARN-8705 | Refactor the UAM heartbeat thread in preparation for YARN-8696 | Major | . | Botong Huang | Botong Huang
HADOOP-15699 | Fix some of testContainerManager failures in Windows | Major | . | Botong Huang | Botong Huang
YARN-8697 | LocalityMulticastAMRMProxyPolicy should fallback to random sub-cluster when cannot resolve resource | Major | . | Botong Huang | Botong Huang
HDFS-13634 | RBF: Configurable value in xml for async connection request queue size. | Major | federation | CR Hota | CR Hota
YARN-8642 | Add support for tmpfs mounts with the Docker runtime | Major | . | Shane Kumpf | Craig Condit
HADOOP-15667 | FileSystemMultipartUploader should verify that UploadHandle has non-0 length | Major | fs/s3 | Ewan Higgs | Ewan Higgs

### OTHER:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
YARN-8016 | Refine PlacementRule interface and add a app-name queue mapping rule as an example | Major | . | Zian Chen | Zian Chen
YARN-8091 | Revisit checkUserAccessToQueue RM REST API | Critical | . | Wangda Tan | Wangda Tan
YARN-8274 | Docker command error during container relaunch | Critical | . | Billie Rinaldi | Jason Lowe
YARN-8080 | YARN native service should support component restart policy | Critical | . | Wangda Tan | Suma Shivaprasad
HADOOP-15482 | Upgrade jackson-databind to version 2.9.5 | Major | . | Lokesh Jain | Lokesh Jain
YARN-7668 | Remove unused variables from ContainerLocalizer | Trivial | . | Ray Chiang | Dedunu Dhananjaya
YARN-8412 | Move ResourceRequest.clone logic everywhere into a proper API | Minor | . | Botong Huang | Botong Huang
HADOOP-15483 | Upgrade jquery to version 3.3.1 | Major | . | Lokesh Jain | Lokesh Jain
YARN-8506 | Make GetApplicationsRequestPBImpl thread safe | Critical | . | Wangda Tan | Wangda Tan
YARN-8545 | YARN native service should return container if launch failed | Critical | . | Wangda Tan | Chandni Singh
HDFS-11610 | sun.net.spi.nameservice.NameService has moved to a new location | Major | . | Akira Ajisaka | Akira Ajisaka
HDFS-13788 | Update EC documentation about rack fault tolerance | Major | documentation, erasure-coding | Xiao Chen | Kitti Nanasi
YARN-8488 | YARN service/components/instances should have SUCCEEDED/FAILED states | Major | yarn-native-services | Wangda Tan | Suma Shivaprasad