Apache Hadoop 3.5.0 – Apache Hadoop Changelog

##### General

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

##### Common

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

##### HDFS

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

##### MapReduce

- Tutorial
- Commands Reference
- Encrypted Shuffle
- Pluggable Shuffle/Sort
- Distributed Cache Deploy
- Support for YARN Shared Cache

##### MapReduce REST APIs

- MR Application Master
- MR History Server

##### YARN

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

##### YARN REST APIs

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

##### YARN Service

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

##### Hadoop Compatible File Systems

- Aliyun OSS
- Amazon S3
- Azure Blob Storage
- Azure Data Lake Storage
- Tencent COS
- Huaweicloud OBS
- VolcanoEngine TOS

##### Auth

- Overview
- Examples
- Configuration
- Building

##### Tools

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

##### Reference

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

##### Configuration

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

# “Apache Hadoop” Changelog

## Release 2.10.0 - 2019-10-22

### INCOMPATIBLE CHANGES:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
HDFS-12883 | RBF: Document Router and State Store metrics | Major | documentation | Yiqun Lin | Yiqun Lin
HDFS-12895 | RBF: Add ACL support for mount table | Major | . | Yiqun Lin | Yiqun Lin
HDFS-13099 | RBF: Use the ZooKeeper as the default State Store | Minor | documentation | Yiqun Lin | Yiqun Lin
HADOOP-16055 | Upgrade AWS SDK to 1.11.271 in branch-2 | Blocker | fs/s3 | Akira Ajisaka | Akira Ajisaka
HADOOP-16053 | Backport HADOOP-14816 to branch-2 | Major | build | Akira Ajisaka | Akira Ajisaka

### IMPORTANT ISSUES:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
HDFS-13083 | RBF: Fix doc error setting up client | Major | federation | tartarus | tartarus

### NEW FEATURES:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
HDFS-13283 | Percentage based Reserved Space Calculation for DataNode | Major | datanode, hdfs | Lukas Majercak | Lukas Majercak
HDFS-13553 | RBF: Support global quota | Major | . | Íñigo Goiri | Yiqun Lin
HADOOP-15950 | Failover for LdapGroupsMapping | Major | common, security | Lukas Majercak | Lukas Majercak
YARN-9761 | Allow overriding application submissions based on server side configs | Major | . | Jonathan Hung | pralabhkumar
YARN-9760 | Support configuring application priorities on a workflow level | Major | . | Jonathan Hung | Varun Saxena

### IMPROVEMENTS:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
HADOOP-14987 | Improve KMSClientProvider log around delegation token checking | Major | . | Xiaoyu Yao | Xiaoyu Yao
HADOOP-14872 | CryptoInputStream should implement unbuffer | Major | fs, security | John Zhuge | John Zhuge
HADOOP-14960 | Add GC time percentage monitor/alerter | Major | . | Misha Dmitriev | Misha Dmitriev
HADOOP-15023 | ValueQueue should also validate (lowWatermark * numValues) > 0 on construction | Minor | . | Xiao Chen | Xiao Chen
YARN-6851 | Capacity Scheduler: document configs for controlling # containers allowed to be allocated per node heartbeat | Minor | . | Wei Yan | Wei Yan
YARN-7495 | Improve robustness of the AggregatedLogDeletionService | Major | log-aggregation | Jonathan Turner Eagles | Jonathan Turner Eagles
HADOOP-15056 | Fix TestUnbuffer#testUnbufferException failure | Minor | test | Jack Bearden | Jack Bearden
HADOOP-15012 | Add readahead, dropbehind, and unbuffer to StreamCapabilities | Major | fs | John Zhuge | John Zhuge
HADOOP-15104 | AliyunOSS: change the default value of max error retry | Major | fs/oss | wujinhu | wujinhu
YARN-7274 | Ability to disable elasticity at leaf queue level | Major | capacityscheduler | Scott Brokaw | Zian Chen
YARN-7642 | Add test case to verify context update after container promotion or demotion with or without auto update | Minor | nodemanager | Weiwei Yang | Weiwei Yang
HADOOP-15111 | AliyunOSS: backport HADOOP-14993 to branch-2 | Major | fs/oss | Genmao Yu | Genmao Yu
HDFS-12818 | Support multiple storages in DataNodeCluster / SimulatedFSDataset | Minor | datanode, test | Erik Krogen | Erik Krogen
HDFS-9023 | When NN is not able to identify DN for replication, reason behind it can be logged | Critical | hdfs-client, namenode | Surendra Singh Lilhore | Xiao Chen
YARN-7678 | Ability to enable logging of container memory stats | Major | nodemanager | Jim Brennan | Jim Brennan
HDFS-12945 | Switch to ClientProtocol instead of NamenodeProtocols in NamenodeWebHdfsMethods | Minor | . | Wei Yan | Wei Yan
YARN-7622 | Allow fair-scheduler configuration on HDFS | Minor | fairscheduler, resourcemanager | Greg Phillips | Greg Phillips
YARN-7590 | Improve container-executor validation check | Major | security, yarn | Eric Yang | Eric Yang
MAPREDUCE-7029 | FileOutputCommitter is slow on filesystems lacking recursive delete | Minor | . | Karthik Palaniappan | Karthik Palaniappan
MAPREDUCE-6984 | MR AM to clean up temporary files from previous attempt in case of no recovery | Major | applicationmaster | Gergo Repas | Gergo Repas
HADOOP-15189 | backport HADOOP-15039 to branch-2 and branch-3 | Blocker | . | Genmao Yu | Genmao Yu
HADOOP-15212 | Add independent secret manager method for logging expired tokens | Major | security | Daryn Sharp | Daryn Sharp
YARN-7728 | Expose container preemptions related information in Capacity Scheduler queue metrics | Major | . | Eric Payne | Eric Payne
MAPREDUCE-7048 | Uber AM can crash due to unknown task in statusUpdate | Major | mr-am | Peter Bacsko | Peter Bacsko
HADOOP-13972 | ADLS to support per-store configuration | Major | fs/adl | John Zhuge | Sharad Sonker
YARN-7813 | Capacity Scheduler Intra-queue Preemption should be configurable for each queue | Major | capacity scheduler, scheduler preemption | Eric Payne | Eric Payne
HADOOP-15235 | Authentication Tokens should use HMAC instead of MAC | Major | security | Robert Kanter | Robert Kanter
HDFS-11187 | Optimize disk access for last partial chunk checksum of Finalized replica | Major | datanode | Wei-Chiu Chuang | Gabor Bota
HADOOP-15266 | [branch-2] Upper/Lower case conversion support for group names in LdapGroupsMapping | Major | . | Nanda kumar | Nanda kumar
HADOOP-15279 | increase maven heap size recommendations | Minor | build, documentation, test | Allen Wittenauer | Allen Wittenauer
HDFS-12884 | BlockUnderConstructionFeature.truncateBlock should be of type BlockInfo | Major | namenode | Konstantin Shvachko | chencan
HADOOP-15334 | Upgrade Maven surefire plugin | Major | build | Arpit Agarwal | Arpit Agarwal
HADOOP-15312 | Undocumented KeyProvider configuration keys | Major | . | Wei-Chiu Chuang | LiXin Ge
YARN-7623 | Fix the CapacityScheduler Queue configuration documentation | Major | . | Arun Suresh | Jonathan Hung
HDFS-13314 | NameNode should optionally exit if it detects FsImage corruption | Major | namenode | Arpit Agarwal | Arpit Agarwal
HDFS-13418 | NetworkTopology should be configurable when enable DFSNetworkTopology | Major | . | Tao Jie | Tao Jie
HADOOP-15394 | Backport PowerShell NodeFencer HADOOP-14309 to branch-2 | Minor | . | Íñigo Goiri | Íñigo Goiri
HDFS-13462 | Add BIND_HOST configuration for JournalNode’s HTTP and RPC Servers | Major | hdfs, journal-node | Lukas Majercak | Lukas Majercak
HDFS-13492 | Limit httpfs binds to certain IP addresses in branch-2 | Major | httpfs | Wei-Chiu Chuang | Wei-Chiu Chuang
HDFS-12981 | renameSnapshot a Non-Existent snapshot to itself should throw error | Minor | hdfs | Sailesh Patel | Kitti Nanasi
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 G | Sunil G
HADOOP-15486 | Make NetworkTopology#netLock fair | Major | net | Nanda kumar | Nanda kumar
HADOOP-15449 | Increase default timeout of ZK session to avoid frequent NameNode failover | Critical | common | Karthik Palanisamy | Karthik Palanisamy
HDFS-13602 | Add checkOperation(WRITE) checks in FSNamesystem | Major | ha, namenode | Erik Krogen | Chao Sun
HDFS-13644 | Backport HDFS-10376 to branch-2 | Major | . | Yiqun Lin | Zsolt Venczel
HDFS-13653 | Make dfs.client.failover.random.order a per nameservice configuration | Major | federation | Ekanth Sethuramalingam | Ekanth Sethuramalingam
HDFS-13686 | Add overall metrics for FSNamesystemLock | Major | hdfs, namenode | Lukas Majercak | Lukas Majercak
HDFS-13714 | Fix TestNameNodePrunesMissingStorages test failures on Windows | Major | hdfs, namenode, test | Lukas Majercak | Lukas Majercak
HDFS-13719 | Docs around dfs.image.transfer.timeout are misleading | Major | documentation | Kitti Nanasi | Kitti Nanasi
HDFS-11060 | make DEFAULT_MAX_CORRUPT_FILEBLOCKS_RETURNED configurable | Minor | hdfs | Lantao Jin | Lantao Jin
YARN-8155 | Improve ATSv2 client logging in RM and NM publisher | Major | . | Rohith Sharma K S | Abhishek Modi
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
HDFS-13821 | RBF: Add dfs.federation.router.mount-table.cache.enable so that users can disable cache | Major | hdfs | Fei Hui | Fei Hui
HADOOP-15689 | Add “*.patch” into .gitignore file of branch-2 | Major | . | Rui Gao | Rui Gao
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
HADOOP-15547 | WASB: improve listStatus performance | Major | fs/azure | Thomas Marqardt | Thomas Marqardt
HDFS-13857 | RBF: Choose to enable the default nameservice to read/write files | Major | federation, hdfs | yanghuafeng | yanghuafeng
HDFS-13812 | Fix the inconsistent default refresh interval on Caching documentation | Trivial | documentation | David Mollitor | Hrishikesh Gadre
HADOOP-15657 | Registering MutableQuantiles via Metric annotation | Major | metrics | Sushil Ks | Sushil Ks
HDFS-13902 | Add JMX, conf and stacks menus to the datanode page | Minor | datanode | fengchuang | fengchuang
HADOOP-15726 | Create utility to limit frequency of log statements | Major | common, util | Erik Krogen | Erik Krogen
YARN-7974 | Allow updating application tracking url after registration | Major | . | Jonathan Hung | Jonathan Hung
YARN-8750 | Refactor TestQueueMetrics | Minor | resourcemanager | Szilard Nemeth | Szilard Nemeth
YARN-8896 | Limit the maximum number of container assignments per heartbeat | Major | . | Weiwei Yang | Zhankun Tang
HADOOP-15804 | upgrade to commons-compress 1.18 | Major | . | PJ Fanning | Akira Ajisaka
YARN-8915 | Update the doc about the default value of “maximum-container-assignments” for capacity scheduler | Minor | . | Zhankun Tang | Zhankun Tang
YARN-7225 | Add queue and partition info to RM audit log | Major | resourcemanager | Jonathan Hung | Eric Payne
HADOOP-15919 | AliyunOSS: Enable Yarn to use OSS | Major | fs/oss | wujinhu | wujinhu
HADOOP-15943 | AliyunOSS: add missing owner & group attributes for oss FileStatus | Major | fs/oss | wujinhu | wujinhu
YARN-9036 | Escape newlines in health report in YARN UI | Major | . | Jonathan Hung | Keqiu Hu
YARN-9085 | Add Guaranteed and MaxCapacity to CSQueueMetrics | Major | . | Jonathan Hung | Jonathan Hung
HDFS-14171 | Performance improvement in Tailing EditLog | Major | namenode | Kenneth Yang | Kenneth Yang
HADOOP-15481 | Emit FairCallQueue stats as metrics | Major | metrics, rpc-server | Erik Krogen | Christopher Gregorian
HADOOP-15617 | Node.js and npm package loading in the Dockerfile failing on branch-2 | Major | build | Allen Wittenauer | Akhil PB
HADOOP-16089 | AliyunOSS: update oss-sdk version to 3.4.1 | Major | fs/oss | wujinhu | wujinhu
YARN-7171 | RM UI should sort memory / cores numerically | Major | . | Eric Maynard | Ahmed Hussein
YARN-9282 | Typo in javadoc of class LinuxContainerExecutor: hadoop.security.authetication should be ‘authentication’ | Trivial | . | Szilard Nemeth | Charan Hebri
HADOOP-16126 | ipc.Client.stop() may sleep too long to wait for all connections | Major | ipc | Tsz-wo Sze | Tsz-wo Sze
HDFS-14247 | Repeat adding node description into network topology | Minor | datanode | HuangTao | HuangTao
YARN-9150 | Making TimelineSchemaCreator support different backends for Timeline Schema Creation in ATSv2 | Major | ATSv2 | Sushil Ks | Sushil Ks
HDFS-14366 | Improve HDFS append performance | Major | hdfs | Chao Sun | Chao Sun
HDFS-14205 | Backport HDFS-6440 to branch-2 | Major | . | Chen Liang | Chao Sun
HDFS-14391 | Backport HDFS-9659 to branch-2 | Minor | . | Chao Sun | Chao Sun
HDFS-14415 | Backport HDFS-13799 to branch-2 | Trivial | . | Chao Sun | Chao Sun
HDFS-14432 | dfs.datanode.shared.file.descriptor.paths duplicated in hdfs-default.xml | Minor | hdfs | puleya7 | puleya7
YARN-9529 | Log correct cpu controller path on error while initializing CGroups. | Major | nodemanager | Jonathan Hung | Jonathan Hung
HDFS-14502 | keepResults option in NNThroughputBenchmark should call saveNamespace() | Major | benchmarks, hdfs | Konstantin Shvachko | Konstantin Shvachko
HADOOP-16323 | https everywhere in Maven settings | Minor | build | Akira Ajisaka | Akira Ajisaka
YARN-9563 | Resource report REST API could return NaN or Inf | Minor | . | Ahmed Hussein | Ahmed Hussein
HDFS-14513 | FSImage which is saving should be clean while NameNode shutdown | Major | namenode | Xiaoqiao He | Xiaoqiao He
HADOOP-16369 | Fix zstandard shortname misspelled as zts | Major | . | Jonathan Turner Eagles | Jonathan Turner Eagles
HADOOP-16359 | Bundle ZSTD native in branch-2 | Major | native | Chao Sun | Chao Sun
HADOOP-15253 | Should update maxQueueSize when refresh call queue | Minor | . | Tao Jie | Tao Jie
HADOOP-16266 | Add more fine-grained processing time metrics to the RPC layer | Minor | ipc | Christopher Gregorian | Erik Krogen
HDFS-13694 | Making md5 computing being in parallel with image loading | Major | . | zhouyingchao | Lisheng Sun
HDFS-14632 | Reduce useless #getNumLiveDataNodes call in SafeModeMonitor | Major | namenode | Xiaoqiao He | Xiaoqiao He
HDFS-14547 | DirectoryWithQuotaFeature.quota costs additional memory even the storage type quota is not set. | Major | . | Jinglun | Jinglun
HDFS-14697 | Backport HDFS-14513 to branch-2 | Minor | namenode | Xiaoqiao He | Xiaoqiao He
YARN-8045 | Reduce log output from container status calls | Major | . | Shane Kumpf | Craig Condit
HDFS-14313 | Get hdfs used space from FsDatasetImpl#volumeMap#ReplicaInfo in memory instead of df/du | Major | datanode, performance | Lisheng Sun | Lisheng Sun
HDFS-14696 | Backport HDFS-11273 to branch-2 (Move TransferFsImage#doGetUrl function to a Util class) | Major | . | Siyao Meng | Siyao Meng
HDFS-14370 | Edit log tailing fast-path should allow for backoff | Major | namenode, qjm | Erik Krogen | Erik Krogen
YARN-9442 | container working directory has group read permissions | Minor | yarn | Jim Brennan | Jim Brennan
HADOOP-16459 | Backport [HADOOP-16266] “Add more fine-grained processing time metrics to the RPC layer” to branch-2 | Major | . | Erik Krogen | Erik Krogen
HDFS-14707 | Add JAVA_LIBRARY_PATH to HTTPFS startup options in branch-2 | Major | httpfs | Masatake Iwasaki | Masatake Iwasaki
HDFS-14723 | Add helper method FSNamesystem#setBlockManagerForTesting() in branch-2 | Blocker | namenode | Wei-Chiu Chuang | Wei-Chiu Chuang
HDFS-14276 | [SBN read] Reduce tailing overhead | Major | ha, namenode | Wei-Chiu Chuang | Ayush Saxena
HDFS-14617 | Improve fsimage load time by writing sub-sections to the fsimage index | Major | namenode | Stephen O’Donnell | Stephen O’Donnell
YARN-9756 | Create metric that sums total memory/vcores preempted per round | Major | capacity scheduler | Eric Payne | Manikandan R
HDFS-14633 | The StorageType quota and consume in QuotaFeature is not handled for rename | Major | . | Jinglun | Jinglun
HADOOP-16439 | Upgrade bundled Tomcat in branch-2 | Major | httpfs, kms | Masatake Iwasaki | Masatake Iwasaki
YARN-9810 | Add queue capacity/maxcapacity percentage metrics | Major | . | Jonathan Hung | Shubham Gupta
YARN-9763 | Print application tags in application summary | Major | . | Jonathan Hung | Manoj Kumar
YARN-9764 | Print application submission context label in application summary | Major | . | Jonathan Hung | Manoj Kumar
HADOOP-16530 | Update xercesImpl in branch-2 | Major | . | Wei-Chiu Chuang | Wei-Chiu Chuang
YARN-9824 | Fall back to configured queue ordering policy class name | Major | . | Jonathan Hung | Jonathan Hung
YARN-9825 | Changes for initializing placement rules with ResourceScheduler in branch-2 | Major | . | Jonathan Hung | Jonathan Hung
YARN-9762 | Add submission context label to audit logs | Major | . | Jonathan Hung | Manoj Kumar
HDFS-14667 | Backport [HDFS-14403] “Cost-based FairCallQueue” to branch-2 | Major | . | Erik Krogen | Erik Krogen

### BUG FIXES:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
MAPREDUCE-6896 | Document wrong spelling in usage of MapredTestDriver tools. | Major | documentation | LiXin Ge | LiXin Ge
HDFS-12052 | Set SWEBHDFS delegation token kind when ssl is enabled in HttpFS | Major | httpfs, webhdfs | Zoran Dimitrijevic | Zoran Dimitrijevic
HDFS-12318 | Fix IOException condition for openInfo in DFSInputStream | Major | . | legend | legend
HDFS-12614 | FSPermissionChecker#getINodeAttrs() throws NPE when INodeAttributesProvider configured | Major | . | Manoj Govindassamy | Manoj Govindassamy
YARN-7396 | NPE when accessing container logs due to null dirsHandler | Major | . | Jonathan Hung | Jonathan Hung
YARN-7370 | Preemption properties should be refreshable | Major | capacity scheduler, scheduler preemption | Eric Payne | Gergely Novák
YARN-7428 | Add containerId to Localizer failed logs | Minor | nodemanager | Prabhu Joseph | Prabhu Joseph
YARN-7410 | Cleanup FixedValueResource to avoid dependency to ResourceUtils | Major | resourcemanager | Sunil G | Wangda Tan
HDFS-12783 | [branch-2] “dfsrouter” should use hdfsScript | Major | . | Brahma Reddy Battula | Brahma Reddy Battula
HDFS-12788 | Reset the upload button when file upload fails | Critical | ui, webhdfs | Brahma Reddy Battula | Brahma Reddy Battula
YARN-7469 | Capacity Scheduler Intra-queue preemption: User can starve if newest app is exactly at user limit | Major | capacity scheduler, yarn | Eric Payne | Eric Payne
HADOOP-14982 | Clients using FailoverOnNetworkExceptionRetry can go into a loop if they’re used without authenticating with kerberos in HA env | Major | common | Peter Bacsko | Peter Bacsko
YARN-7489 | ConcurrentModificationException in RMAppImpl#getRMAppMetrics | Major | capacityscheduler | Tao Yang | Tao Yang
YARN-7525 | Incorrect query parameters in cluster nodes REST API document | Minor | documentation | Tao Yang | Tao Yang
HDFS-12813 | RequestHedgingProxyProvider can hide Exception thrown from the Namenode for proxy size of 1 | Major | ha | Mukul Kumar Singh | Mukul Kumar Singh
HADOOP-15045 | ISA-L build options are documented in branch-2 | Major | build, documentation | Akira Ajisaka | Akira Ajisaka
HADOOP-15067 | GC time percentage reported in JvmMetrics should be a gauge, not counter | Major | . | Misha Dmitriev | Misha Dmitriev
YARN-7363 | ContainerLocalizer doesn’t have a valid log4j config when using LinuxContainerExecutor | Major | nodemanager | Yufei Gu | Yufei Gu
HDFS-12754 | Lease renewal can hit a deadlock | Major | . | Kuhu Shukla | Kuhu Shukla
HDFS-12832 | INode.getFullPathName may throw ArrayIndexOutOfBoundsException lead to NameNode exit | Critical | namenode | DENG FEI | Konstantin Shvachko
HDFS-11754 | Make FsServerDefaults cache configurable. | Minor | . | Rushabh Shah | Mikhail Erofeev
HADOOP-15042 | Azure PageBlobInputStream.skip() can return negative value when numberOfPagesRemaining is 0 | Minor | fs/azure | Rajesh Balamohan | Rajesh Balamohan
HDFS-12638 | Delete copy-on-truncate block along with the original block, when deleting a file being truncated | Blocker | hdfs | Jiandan Yang | Konstantin Shvachko
YARN-4813 | TestRMWebServicesDelegationTokenAuthentication.testDoAs fails intermittently | Major | resourcemanager | Daniel Templeton | Gergo Repas
MAPREDUCE-5124 | AM lacks flow control for task events | Major | mr-am | Jason Darrell Lowe | Peter Bacsko
YARN-7455 | quote_and_append_arg can overflow buffer | Major | nodemanager | Jason Darrell Lowe | Jim Brennan
YARN-7594 | TestNMWebServices#testGetNMResourceInfo fails on trunk | Major | nodemanager, webapp | Gergely Novák | Gergely Novák
YARN-5594 | Handle old RMDelegationToken format when recovering RM | Major | resourcemanager | Tatyana But | Robert Kanter
HADOOP-14985 | Remove subversion related code from VersionInfoMojo.java | Minor | build | Akira Ajisaka | Ajay Kumar
HDFS-11751 | DFSZKFailoverController daemon exits with wrong status code | Major | auto-failover | Doris Gu | Bharat Viswanadham
HDFS-12889 | Router UI is missing robots.txt file | Major | . | Bharat Viswanadham | Bharat Viswanadham
YARN-7607 | Remove the trailing duplicated timestamp in container diagnostics message | Minor | nodemanager | Weiwei Yang | Weiwei Yang
HADOOP-15080 | Aliyun OSS: update oss sdk from 2.8.1 to 2.8.3 to remove its dependency on Cat-x “json-lib” | Blocker | fs/oss | Christopher Douglas | Sammi Chen
YARN-7608 | Incorrect sTarget column causing DataTable warning on RM application and scheduler web page | Major | resourcemanager, webapp | Weiwei Yang | Gergely Novák
HDFS-12833 | Distcp : Update the usage of delete option for dependency with update and overwrite option | Minor | distcp, hdfs | Harshakiran Reddy | usharani
YARN-7647 | NM print inappropriate error log when node-labels is enabled | Minor | . | Yang Wang | Yang Wang
HDFS-12907 | Allow read-only access to reserved raw for non-superusers | Major | namenode | Daryn Sharp | Rushabh Shah
HDFS-12881 | Output streams closed with IOUtils suppressing write errors | Major | . | Jason Darrell Lowe | Ajay Kumar
YARN-7595 | Container launching code suppresses close exceptions after writes | Major | nodemanager | Jason Darrell Lowe | Jim Brennan
HADOOP-15085 | Output streams closed with IOUtils suppressing write errors | Major | . | Jason Darrell Lowe | Jim Brennan
HADOOP-15123 | KDiag tries to load krb5.conf from KRB5CCNAME instead of KRB5_CONFIG | Minor | security | Vipin Rathor | Vipin Rathor
YARN-7661 | NodeManager metrics return wrong value after update node resource | Major | . | Yang Wang | Yang Wang
HDFS-12347 | TestBalancerRPCDelay#testBalancerRPCDelay fails very frequently | Critical | test | Xiao Chen | Bharat Viswanadham
YARN-7662 | [Atsv2] Define new set of configurations for reader and collectors to bind. | Major | . | Rohith Sharma K S | Rohith Sharma K S
YARN-7674 | Update Timeline Reader web app address in UI2 | Major | . | Rohith Sharma K S | Sunil G
YARN-7542 | Fix issue that causes some Running Opportunistic Containers to be recovered as PAUSED | Major | . | Arun Suresh | Sampada Dehankar
HADOOP-15143 | NPE due to Invalid KerberosTicket in UGI | Major | . | Jitendra Nath Pandey | Mukul Kumar Singh
YARN-7692 | Skip validating priority acls while recovering applications | Blocker | resourcemanager | Charan Hebri | Sunil G
MAPREDUCE-7028 | Concurrent task progress updates causing NPE in Application Master | Blocker | mr-am | Gergo Repas | Gergo Repas
YARN-7619 | Max AM Resource value in Capacity Scheduler UI has to be refreshed for every user | Major | capacity scheduler, yarn | Eric Payne | Eric Payne
YARN-7699 | queueUsagePercentage is coming as INF for getApp REST api call | Major | webapp | Sunil G | Sunil G
HDFS-12985 | NameNode crashes during restart after an OpenForWrite file present in the Snapshot got deleted | Major | hdfs | Manoj Govindassamy | Manoj Govindassamy
YARN-4227 | Ignore expired containers from removed nodes in FairScheduler | Critical | fairscheduler | Wilfred Spiegelenburg | Wilfred Spiegelenburg
YARN-7508 | NPE in FiCaSchedulerApp when debug log enabled in async-scheduling mode | Major | capacityscheduler | Tao Yang | Tao Yang
YARN-7663 | RMAppImpl:Invalid event: START at KILLED | Major | resourcemanager | lujie | lujie
YARN-6948 | Invalid event: ATTEMPT_ADDED at FINAL_SAVING | Major | yarn | lujie | lujie
HADOOP-15060 | TestShellBasedUnixGroupsMapping.testFiniteGroupResolutionTime flaky | Major | . | Miklos Szegedi | Miklos Szegedi
YARN-7735 | Fix typo in YARN documentation | Minor | documentation | Takanobu Asanuma | Takanobu Asanuma
YARN-7727 | Incorrect log levels in few logs with QueuePriorityContainerCandidateSelector | Minor | yarn | Prabhu Joseph | Prabhu Joseph
HDFS-11915 | Sync rbw dir on the first hsync() to avoid file lost on power failure | Critical | . | Kanaka Kumar Avvaru | Vinayakumar B
YARN-7705 | Create the container log directory with correct sticky bit in C code | Major | nodemanager | Yufei Gu | Yufei Gu
HDFS-9049 | Make Datanode Netty reverse proxy port to be configurable | Major | datanode | Vinayakumar B | Vinayakumar B
YARN-7758 | Add an additional check to the validity of container and application ids passed to container-executor | Major | nodemanager | Miklos Szegedi | Yufei Gu
HADOOP-15150 | in FsShell, UGI params should be overidden through env vars(-D arg) | Major | . | Brahma Reddy Battula | Brahma Reddy Battula
HADOOP-15181 | Typo in SecureMode.md | Trivial | documentation | Masahiro Tanaka | Masahiro Tanaka
YARN-7806 | Distributed Shell should use timeline async api’s | Major | distributed-shell | Sumana Sathish | Rohith Sharma K S
HADOOP-15121 | Encounter NullPointerException when using DecayRpcScheduler | Major | . | Tao Jie | Tao Jie
MAPREDUCE-7015 | Possible race condition in JHS if the job is not loaded | Major | jobhistoryserver | Peter Bacsko | Peter Bacsko
YARN-7737 | prelaunch.err file not found exception on container failure | Major | . | Jonathan Hung | Keqiu Hu
HDFS-13063 | Fix the incorrect spelling in HDFSHighAvailabilityWithQJM.md | Trivial | documentation | Jianfei Jiang | Jianfei Jiang
YARN-7102 | NM heartbeat stuck when responseId overflows MAX_INT | Critical | . | Botong Huang | Botong Huang
MAPREDUCE-7041 | MR should not try to clean up at first job attempt | Major | . | Takanobu Asanuma | Gergo Repas
MAPREDUCE-7020 | Task timeout in uber mode can crash AM | Major | mr-am | Akira Ajisaka | Peter Bacsko
YARN-7765 | [Atsv2] GSSException: No valid credentials provided - Failed to find any Kerberos tgt thrown by Timelinev2Client & HBaseClient in NM | Blocker | . | Sumana Sathish | Rohith Sharma K S
HDFS-12974 | Exception message is not printed when creating an encryption zone fails with AuthorizationException | Minor | encryption | fang zhenyi | fang zhenyi
YARN-7698 | A misleading variable’s name in ApplicationAttemptEventDispatcher | Minor | resourcemanager | Jinjiang Ling | Jinjiang Ling
HDFS-12528 | Add an option to not disable short-circuit reads on failures | Major | hdfs-client, performance | Andre Araujo | Xiao Chen
HDFS-13100 | Handle IllegalArgumentException when GETSERVERDEFAULTS is not implemented in webhdfs. | Critical | hdfs, webhdfs | Yongjun Zhang | Yongjun Zhang
YARN-7849 | TestMiniYarnClusterNodeUtilization#testUpdateNodeUtilization fails due to heartbeat sync error | Major | test | Jason Darrell Lowe | Botong Huang
YARN-7801 | AmFilterInitializer should addFilter after fill all parameters | Critical | . | Sumana Sathish | Wangda Tan
YARN-7890 | NPE during container relaunch | Major | . | Billie Rinaldi | Jason Darrell Lowe
HDFS-13115 | In getNumUnderConstructionBlocks(), ignore the inodeIds for which the inodes have been deleted | Major | . | Yongjun Zhang | Yongjun Zhang
HDFS-12935 | Get ambiguous result for DFSAdmin command in HA mode when only one namenode is up | Major | tools | Jianfei Jiang | Jianfei Jiang
HDFS-13120 | Snapshot diff could be corrupted after concat | Major | namenode, snapshots | Xiaoyu Yao | Xiaoyu Yao
HDFS-10453 | ReplicationMonitor thread could stuck for long time due to the race between replication and delete of same file in a large cluster. | Major | namenode | Xiaoqiao He | Xiaoqiao He
HDFS-8693 | refreshNamenodes does not support adding a new standby to a running DN | Critical | datanode, ha | Jian Fang | Ajith S
MAPREDUCE-7052 | TestFixedLengthInputFormat#testFormatCompressedIn is flaky | Major | client, test | Peter Bacsko | Peter Bacsko
HDFS-13112 | Token expiration edits may cause log corruption or deadlock | Critical | namenode | Daryn Sharp | Daryn Sharp
MAPREDUCE-7053 | Timed out tasks can fail to produce thread dump | Major | . | Jason Darrell Lowe | Jason Darrell Lowe
HADOOP-15206 | BZip2 drops and duplicates records when input split size is small | Major | . | Aki Tanaka | Aki Tanaka
YARN-7937 | Fix http method name in Cluster Application Timeout Update API example request | Minor | docs, documentation | Charan Hebri | Charan Hebri
YARN-7947 | Capacity Scheduler intra-queue preemption can NPE for non-schedulable apps | Major | capacity scheduler, scheduler preemption | Eric Payne | Eric Payne
YARN-7945 | Java Doc error in UnmanagedAMPoolManager for branch-2 | Major | . | Rohith Sharma K S | Botong Huang
HADOOP-14903 | Add json-smart explicitly to pom.xml | Major | common | Ray Chiang | Ray Chiang
HADOOP-15236 | Fix typo in RequestHedgingProxyProvider and RequestHedgingRMFailoverProxyProvider | Trivial | documentation | Akira Ajisaka | Gabor Bota
MAPREDUCE-7027 | HadoopArchiveLogs shouldn’t delete the original logs if the HAR creation fails | Critical | harchive | Gergely Novák | Gergely Novák
HDFS-12781 | After Datanode down, In Namenode UI Datanode tab is throwing warning message. | Major | datanode | Harshakiran Reddy | Brahma Reddy Battula
HDFS-12070 | Failed block recovery leaves files open indefinitely and at risk for data loss | Major | . | Daryn Sharp | Kihwal Lee
HADOOP-15251 | Backport HADOOP-13514 (surefire upgrade) to branch-2 | Major | test | Christopher Douglas | Christopher Douglas
HDFS-13194 | CachePool permissions incorrectly checked | Major | . | Yiqun Lin | Jianfei Jiang
HADOOP-15276 | branch-2 site not building after ADL troubleshooting doc added | Major | documentation | Steve Loughran | Steve Loughran
YARN-7835 | [Atsv2] Race condition in NM while publishing events if second attempt is launched on the same node | Critical | . | Rohith Sharma K S | Rohith Sharma K S
HADOOP-15275 | Incorrect javadoc for return type of RetryPolicy#shouldRetry | Minor | documentation | Nanda kumar | Nanda kumar
YARN-7511 | NPE in ContainerLocalizer when localization failed for running container | Major | nodemanager | Tao Yang | Tao Yang
MAPREDUCE-7023 | TestHadoopArchiveLogs.testCheckFilesAndSeedApps fails on rerun | Minor | test | Gergely Novák | Gergely Novák
HADOOP-15283 | Upgrade from findbugs 3.0.1 to spotbugs 3.1.2 in branch-2 to fix docker image build | Major | . | Xiao Chen | Akira Ajisaka
HADOOP-15286 | Remove unused imports from TestKMSWithZK.java | Minor | test | Akira Ajisaka | Ajay Kumar
HDFS-13040 | Kerberized inotify client fails despite kinit properly | Major | namenode | Wei-Chiu Chuang | Xiao Chen
YARN-7736 | Fix itemization in YARN federation document | Minor | documentation | Akira Ajisaka | Sen Zhao
HDFS-13164 | File not closed if streamer fail with DSQuotaExceededException | Major | hdfs-client | Xiao Chen | Xiao Chen
HDFS-13109 | Support fully qualified hdfs path in EZ commands | Major | hdfs | Hanisha Koneru | Hanisha Koneru
MAPREDUCE-6930 | mapreduce.map.cpu.vcores and mapreduce.reduce.cpu.vcores are both present twice in mapred-default.xml | Major | mrv2 | Daniel Templeton | Sen Zhao
HDFS-10618 | TestPendingReconstruction#testPendingAndInvalidate is flaky due to race condition | Major | . | Eric Badger | Eric Badger
HDFS-10803 | TestBalancerWithMultipleNameNodes#testBalancing2OutOf3Blockpools fails intermittently due to no free space available | Major | . | Yiqun Lin | Yiqun Lin
HDFS-12156 | TestFSImage fails without -Pnative | Major | test | Akira Ajisaka | Akira Ajisaka
HDFS-13261 | Fix incorrect null value check | Minor | hdfs | Jianfei Jiang | Jianfei Jiang
HDFS-12886 | Ignore minReplication for block recovery | Major | hdfs, namenode | Lukas Majercak | Lukas Majercak
YARN-8039 | Clean up log dir configuration in TestLinuxContainerExecutorWithMocks.testStartLocalizer | Minor | . | Miklos Szegedi | Miklos Szegedi
HDFS-13296 | GenericTestUtils generates paths with drive letter in Windows and fail webhdfs related test cases | Major | . | Xiao Liang | Xiao Liang
HDFS-13268 | TestWebHdfsFileContextMainOperations fails on Windows | Major | . | Íñigo Goiri | Xiao Liang
YARN-8054 | Improve robustness of the LocalDirsHandlerService MonitoringTimerTask thread | Major | . | Jonathan Turner Eagles | Jonathan Turner Eagles
YARN-7873 | Revert YARN-6078 | Blocker | . | Billie Rinaldi | Billie Rinaldi
HDFS-13195 | DataNode conf page cannot display the current value after reconfig | Minor | datanode | maobaolong | maobaolong
YARN-8063 | DistributedShellTimelinePlugin wrongly check for entityId instead of entityType | Major | . | Rohith Sharma K S | Rohith Sharma K S
YARN-8068 | Application Priority field causes NPE in app timeline publish when Hadoop 2.7 based clients to 2.8+ | Blocker | yarn | Sunil G | Sunil G
HADOOP-12862 | LDAP Group Mapping over SSL can not specify trust store | Major | . | Wei-Chiu Chuang | Wei-Chiu Chuang
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
HDFS-13176 | WebHdfs file path gets truncated when having semicolon (;) inside | Major | webhdfs | Zsolt Venczel | Zsolt Venczel
HADOOP-15375 | Branch-2 pre-commit failed to build docker image | Major | . | Xiao Chen | Xiao Chen
HADOOP-15357 | Configuration.getPropsWithPrefix no longer does variable substitution | Major | . | Jim Brennan | Jim Brennan
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-6629 | NPE occurred when container allocation proposal is applied but its resource requests are removed before | Critical | . | Tao Yang | Tao Yang
HDFS-13427 | Fix the section titles of transparent encryption document | Minor | documentation | Akira Ajisaka | Akira Ajisaka
YARN-7527 | Over-allocate node resource in async-scheduling mode of CapacityScheduler | Major | capacityscheduler | Tao Yang | Tao Yang
HDFS-7101 | Potential null dereference in DFSck#doWork() | Minor | . | Ted Yu | skrho
YARN-8120 | JVM can crash with SIGSEGV when exiting due to custom leveldb logger | Major | nodemanager, resourcemanager | Jason Darrell Lowe | Jason Darrell Lowe
YARN-8147 | TestClientRMService#testGetApplications sporadically fails | Major | test | Jason Darrell Lowe | Jason Darrell Lowe
HADOOP-14970 | MiniHadoopClusterManager doesn’t respect lack of format option | Minor | . | Erik Krogen | Erik Krogen
YARN-8156 | Increase the default value of yarn.timeline-service.app-collector.linger-period.ms | Major | . | Rohith Sharma K S | Charan Hebri
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
HDFS-12828 | OIV ReverseXML Processor fails with escaped characters | Critical | hdfs | Erik Krogen | Erik Krogen
HADOOP-15180 | branch-2 : daemon processes’ sysout overwrites ‘ulimit -a’ in daemon’s out file | Minor | scripts | Ranith Sardar | Ranith Sardar
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-7786 | NullPointerException while launching ApplicationMaster | Major | . | lujie | lujie
HDFS-13408 | MiniDFSCluster to support being built on randomized base directory | Major | test | Xiao Liang | Xiao Liang
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-8183 | Fix ConcurrentModificationException inside RMAppAttemptMetrics#convertAtomicLongMaptoLongMap | Critical | yarn | Sumana Sathish | Suma Shivaprasad
HADOOP-15385 | Many tests are failing in hadoop-distcp project in branch-2 | Critical | tools/distcp | Rushabh Shah | Jason Darrell Lowe
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
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 G | Sunil G
HDFS-13509 | Bug fix for breakHardlinks() of ReplicaInfo/LocalReplica, and fix TestFileAppend failures on Windows | Major | . | Xiao Liang | Xiao Liang
MAPREDUCE-7073 | Optimize TokenCache#obtainTokensForNamenodesInternal | Major | . | Bibin Chundatt | Bibin Chundatt
YARN-8025 | UsersManangers#getComputedResourceLimitForActiveUsers throws NPE due to preComputedActiveUserLimit is empty | Major | yarn | Jiandan Yang | Tao Yang
YARN-8232 | RMContainer lost queue name when RM HA happens | Major | resourcemanager | Hu Ziqian | Hu Ziqian
HDFS-13537 | TestHdfsHelper does not generate jceks path properly for relative path in Windows | Major | . | Xiao Liang | Xiao Liang
HADOOP-15446 | WASB: PageBlobInputStream.skip breaks HBASE replication | Major | fs/azure | Thomas Marqardt | Thomas Marqardt
YARN-8244 | TestContainerSchedulerQueuing.testStartMultipleContainers failed | Major | . | Miklos Szegedi | Jim Brennan
HDFS-13586 | Fsync fails on directories on Windows | Critical | datanode, hdfs | Lukas Majercak | Lukas Majercak
HDFS-13590 | Backport HDFS-12378 to branch-2 | Major | datanode, hdfs, test | Lukas Majercak | Lukas Majercak
HADOOP-15478 | WASB: hflush() and hsync() regression | Major | fs/azure | Thomas Marqardt | Thomas Marqardt
HADOOP-15450 | Avoid fsync storm triggered by DiskChecker and handle disk full situation | Blocker | . | Kihwal Lee | Arpit Agarwal
HDFS-13601 | Optimize ByteString conversions in PBHelper | Major | . | Andrew Wang | Andrew Wang
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-8344 | Missing nm.stop() in TestNodeManagerResync to fix testKillContainersOnResync | 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 Darrell Lowe
HDFS-13611 | Unsafe use of Text as a ConcurrentHashMap key in PBHelperClient | Major | . | Andrew Wang | Andrew Wang
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
HDFS-13626 | Fix incorrect username when deny the setOwner operation | Minor | namenode | luhuachao | Zsolt Venczel
MAPREDUCE-7103 | Fix TestHistoryViewerPrinter on windows due to a mismatch line separator | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola
YARN-8359 | Exclude containermanager.linux test classes on Windows | Major | . | Giovanni Matteo Fumarola | Jason Darrell Lowe
HDFS-13664 | Refactor ConfiguredFailoverProxyProvider to make inheritance easier | Minor | hdfs-client | Chao Sun | Chao Sun
YARN-8405 | RM zk-state-store.parent-path ACLs has been changed since HADOOP-14773 | Major | . | Rohith Sharma K S | Íñigo Goiri
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 Marqardt
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
HDFS-13675 | Speed up TestDFSAdminWithHA | Major | hdfs, namenode | Lukas Majercak | Lukas Majercak
HDFS-13673 | TestNameNodeMetrics fails on Windows | Minor | test | Zuoming Zhang | Zuoming Zhang
HDFS-13676 | TestEditLogRace fails on Windows | Minor | test | Zuoming Zhang | Zuoming Zhang
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-8444 | NodeResourceMonitor crashes on bad swapFree value | Major | . | Jim Brennan | Jim Brennan
YARN-8457 | Compilation is broken with -Pyarn-ui | Major | webapp | Sunil G | Sunil G
YARN-8401 | [UI2] new ui is not accessible with out internet connection | Blocker | . | Bibin Chundatt | Bibin Chundatt
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
YARN-8473 | Containers being launched as app tears down can leave containers in NEW state | Major | nodemanager | Jason Darrell Lowe | Jason Darrell Lowe
HDFS-13729 | Fix broken links to RBF documentation | Minor | documentation | jwhitter | Gabor Bota
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 |
HADOOP-15614 | TestGroupsCaching.testExceptionOnBackgroundRefreshHandled reliably fails | Major | . | Kihwal Lee | Weiwei Yang
YARN-4606 | CapacityScheduler: applications could get starved because computation of #activeUsers considers pending apps | Critical | capacity scheduler, capacityscheduler | Karam Singh | Manikandan R
HADOOP-15637 | LocalFs#listLocatedStatus does not filter out hidden .crc files | Minor | fs | Erik Krogen | Erik Krogen
HADOOP-15644 | Hadoop Docker Image Pip Install Fails on branch-2 | Critical | build | Haibo Chen | Haibo Chen
YARN-6966 | NodeManager metrics may return wrong negative values when NM restart | Major | . | Yang Wang | Szilard Nemeth
YARN-8331 | Race condition in NM container launched after done | Major | . | Yang Wang | Pradeep Ambati
HDFS-13758 | DatanodeManager should throw exception if it has BlockRecoveryCommand but the block is not under construction | Major | namenode | Wei-Chiu Chuang | chencan
YARN-8612 | Fix NM Collector Service Port issue in YarnConfiguration | Major | ATSv2 | Prabha Manepalli | Prabha Manepalli
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
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
HADOOP-10219 | ipc.Client.setupIOstreams() needs to check for ClientCache.stopClient requested shutdowns | Major | ipc | Steve Loughran | Kihwal Lee
MAPREDUCE-7131 | Job History Server has race condition where it moves files from intermediate to finished but thinks file is in intermediate | Major | . | Anthony Hsu | Anthony Hsu
HDFS-13836 | RBF: Handle mount table znode with null value | Major | federation, hdfs | yanghuafeng | yanghuafeng
HDFS-12716 | ‘dfs.datanode.failed.volumes.tolerated’ to support minimum number of volumes to be available | Major | datanode | usharani | Ranith Sardar
YARN-8709 | CS preemption monitor always fails since one under-served queue was deleted | Major | capacityscheduler, scheduler preemption | Tao Yang | Tao Yang
HDFS-13051 | Fix dead lock during async editlog rolling if edit queue is full | Major | namenode | zhangwei | Daryn Sharp
HDFS-13914 | Fix DN UI logs link broken when https is enabled after HDFS-13902 | Minor | datanode | Jianfei Jiang | Jianfei Jiang
MAPREDUCE-7133 | History Server task attempts REST API returns invalid data | Major | jobhistoryserver | Oleksandr Shevchenko | Oleksandr Shevchenko
YARN-8720 | CapacityScheduler does not enforce max resource allocation check at queue level | Major | capacity scheduler, capacityscheduler, resourcemanager | Tarun Parimi | Tarun Parimi
HDFS-13844 | Fix the fmt_bytes function in the dfs-dust.js | Minor | hdfs, ui | yanghuafeng | yanghuafeng
HADOOP-15755 | StringUtils#createStartupShutdownMessage throws NPE when args is null | Major | . | Lokesh Jain | Dinesh Chitlangia
MAPREDUCE-3801 | org.apache.hadoop.mapreduce.v2.app.TestRuntimeEstimators.testExponentialEstimator fails intermittently | Major | mrv2 | Robert Joseph Evans | Jason Darrell Lowe
MAPREDUCE-7137 | MRAppBenchmark.benchmark1() fails with NullPointerException | Minor | test | Oleksandr Shevchenko | Oleksandr Shevchenko
MAPREDUCE-7138 | ThrottledContainerAllocator in MRAppBenchmark should implement RMHeartbeatHandler | Minor | test | Oleksandr Shevchenko | Oleksandr Shevchenko
HDFS-13908 | TestDataNodeMultipleRegistrations is flaky | Major | . | Íñigo Goiri | Ayush Saxena
HADOOP-15772 | Remove the ‘Path … should be specified as a URI’ warnings on startup | Major | conf | Arpit Agarwal | Ayush Saxena
YARN-8804 | resourceLimits may be wrongly calculated when leaf-queue is blocked in cluster with 3+ level queues | Critical | capacityscheduler | Tao Yang | Tao Yang
YARN-8774 | Memory leak when CapacityScheduler allocates from reserved container with non-default label | Critical | capacityscheduler | Tao Yang | Tao Yang
YARN-8840 | Add missing cleanupSSLConfig() call for TestTimelineClient test | Minor | test, timelineclient | Aki Tanaka | Aki Tanaka
HADOOP-15817 | Reuse Object Mapper in KMSJSONReader | Major | kms | Jonathan Turner Eagles | Jonathan Turner Eagles
HADOOP-15820 | ZStandardDecompressor native code sets an integer field as a long | Blocker | . | Jason Darrell Lowe | Jason Darrell Lowe
HDFS-13964 | RBF: TestRouterWebHDFSContractAppend fails with No Active Namenode under nameservice | Major | . | Ayush Saxena | Ayush Saxena
HDFS-13768 | Adding replicas to volume map makes DataNode start slowly | Major | . | Yiqun Lin | Surendra Singh Lilhore
HADOOP-15818 | Fix deprecated maven-surefire-plugin configuration in hadoop-kms module | Minor | kms | Akira Ajisaka | Vidura Bhathiya Mudalige
HDFS-13802 | RBF: Remove FSCK from Router Web UI | Major | . | Fei Hui | Fei Hui
HADOOP-15859 | ZStandardDecompressor.c mistakes a class for an instance | Blocker | . | Ben Lau | Jason Darrell Lowe
HADOOP-15850 | CopyCommitter#concatFileChunks should check that the blocks per chunk is not 0 | Critical | tools/distcp | Ted Yu | Ted Yu
YARN-7502 | Nodemanager restart docs should describe nodemanager supervised property | Major | documentation | Jason Darrell Lowe | Suma Shivaprasad
HADOOP-15866 | Renamed HADOOP_SECURITY_GROUP_SHELL_COMMAND_TIMEOUT keys break compatibility | Blocker | . | Wei-Chiu Chuang | Wei-Chiu Chuang
YARN-8826 | Fix lingering timeline collector after serviceStop in TimelineCollectorManager | Trivial | ATSv2 | Prabha Manepalli | Prabha Manepalli
HADOOP-15822 | zstd compressor can fail with a small output buffer | Major | . | Jason Darrell Lowe | Jason Darrell Lowe
HDFS-13959 | TestUpgradeDomainBlockPlacementPolicy is flaky | Major | . | Ayush Saxena | Ayush Saxena
HADOOP-15899 | Update AWS Java SDK versions in NOTICE.txt | Major | . | Akira Ajisaka | Akira Ajisaka
HADOOP-15900 | Update JSch versions in LICENSE.txt | Major | . | Akira Ajisaka | Akira Ajisaka
HDFS-14043 | Tolerate corrupted seen_txid file | Major | hdfs, namenode | Lukas Majercak | Lukas Majercak
YARN-8858 | CapacityScheduler should respect maximum node resource when per-queue maximum-allocation is being used. | Major | . | Sumana Sathish | Wangda Tan
HDFS-14048 | DFSOutputStream close() throws exception on subsequent call after DataNode restart | Major | hdfs-client | Erik Krogen | Erik Krogen
MAPREDUCE-7156 | NullPointerException when reaching max shuffle connections | Major | mrv2 | Peter Bacsko | Peter Bacsko
YARN-8233 | NPE in CapacityScheduler#tryCommit when handling allocate/reserve proposal whose allocatedOrReservedContainer is null | Critical | capacityscheduler | Tao Yang | Tao Yang
HADOOP-15923 | create-release script should set max-cache-ttl as well as default-cache-ttl for gpg-agent | Blocker | build | Akira Ajisaka | Akira Ajisaka
HADOOP-15930 | Exclude MD5 checksum files from release artifact | Critical | build | Akira Ajisaka | Akira Ajisaka
HADOOP-15925 | The config and log of gpg-agent are removed in create-release script | Major | build | Akira Ajisaka | Dinesh Chitlangia
HDFS-14056 | Fix error messages in HDFS-12716 | Minor | hdfs | Adam Antal | Ayush Saxena
YARN-7794 | SLSRunner is not loading timeline service jars causing failure | Blocker | scheduler-load-simulator | Sunil G | Yufei Gu
HADOOP-16008 | Fix typo in CommandsManual.md | Minor | . | Akira Ajisaka | Shweta
HADOOP-15973 | Configuration: Included properties are not cached if resource is a stream | Critical | . | Eric Payne | Eric Payne
YARN-9175 | Null resources check in ResourceInfo for branch-3.0 | Major | . | Jonathan Hung | Jonathan Hung
HADOOP-15992 | JSON License is included in the transitive dependency of aliyun-sdk-oss 3.0.0 | Blocker | . | Akira Ajisaka | Akira Ajisaka
HADOOP-16030 | AliyunOSS: bring fixes back from HADOOP-15671 | Blocker | fs/oss | wujinhu | wujinhu
YARN-9162 | Fix TestRMAdminCLI#testHelp | Major | resourcemanager, test | Ayush Saxena | Ayush Saxena
YARN-8833 | Avoid potential integer overflow when computing fair shares | Major | fairscheduler | liyakun | liyakun
HADOOP-16016 | TestSSLFactory#testServerWeakCiphers sporadically fails in precommit builds | Major | security, test | Jason Darrell Lowe | Akira Ajisaka
HADOOP-16013 | DecayRpcScheduler decay thread should run as a daemon | Major | ipc | Erik Krogen | Erik Krogen
YARN-8747 | [UI2] YARN UI2 page loading failed due to js error under some time zone configuration | Critical | webapp | collinma | collinma
YARN-9210 | RM nodes web page can not display node info | Blocker | yarn | Jiandan Yang | Jiandan Yang
YARN-7088 | Add application launch time to Resource Manager REST API | Major | . | Abdullah Yousufi | Kanwaljeet Sachdev
YARN-9222 | Print launchTime in ApplicationSummary | Major | . | Jonathan Hung | Jonathan Hung
YARN-6616 | YARN AHS shows submitTime for jobs same as startTime | Minor | . | Prabhu Joseph | Prabhu Joseph
MAPREDUCE-7177 | Disable speculative execution in TestDFSIO | Major | . | Kihwal Lee | Zhaohui Xin
YARN-9206 | RMServerUtils does not count SHUTDOWN as an accepted state | Major | . | Kuhu Shukla | Kuhu Shukla
YARN-9283 | Javadoc of LinuxContainerExecutor#addSchedPriorityCommand has a wrong property name as reference | Minor | documentation | Szilard Nemeth | Adam Antal
HADOOP-15813 | Enable more reliable SSL connection reuse | Major | common | Daryn Sharp | Daryn Sharp
HDFS-14314 | fullBlockReportLeaseId should be reset after registering to NN | Critical | datanode | star | star
YARN-5714 | ContainerExecutor does not order environment map | Trivial | nodemanager | Remi Catherinot | Remi Catherinot
HADOOP-16192 | CallQueue backoff bug fixes: doesn’t perform backoff when add() is used, and doesn’t update backoff when refreshed | Major | ipc | Erik Krogen | Erik Krogen
HDFS-14399 | Backport HDFS-10536 to branch-2 | Critical | . | Chao Sun | Chao Sun
HDFS-14407 | Fix misuse of SLF4j logging API in DatasetVolumeChecker#checkAllVolumes | Minor | . | Wanqiang Ji | Wanqiang Ji
HDFS-14414 | Clean up findbugs warning in branch-2 | Major | . | Wei-Chiu Chuang | Dinesh Chitlangia
HADOOP-14544 | DistCp documentation for command line options is misaligned. | Minor | documentation | Chris Nauroth | Masatake Iwasaki
HDFS-10477 | Stop decommission a rack of DataNodes caused NameNode fail over to standby | Major | namenode | yunjiong zhao | yunjiong zhao
HDFS-13677 | Dynamic refresh Disk configuration results in overwriting VolumeMap | Blocker | . | xuzq | xuzq
YARN-9285 | RM UI progress column is of wrong type | Minor | yarn | Ahmed Hussein | Ahmed Hussein
HDFS-14500 | NameNode StartupProgress continues to report edit log segments after the LOADING_EDITS phase is finished | Major | namenode | Erik Krogen | Erik Krogen
HADOOP-16331 | Fix ASF License check in pom.xml | Major | . | Wanqiang Ji | Akira Ajisaka
HDFS-14514 | Actual read size of open file in encryption zone still larger than listing size even after enabling HDFS-11402 in Hadoop 2 | Major | encryption, hdfs, snapshots | Siyao Meng | Siyao Meng
HDFS-14512 | ONE_SSD policy will be violated while write data with DistributedFileSystem.create(….favoredNodes) | Major | . | Shen Yinjie | Ayush Saxena
HDFS-14521 | Suppress setReplication logging. | Major | . | Kihwal Lee | Kihwal Lee
YARN-8625 | Aggregate Resource Allocation for each job is not present in ATS | Major | ATSv2 | Prabhu Joseph | Prabhu Joseph
HADOOP-16345 | Potential NPE when instantiating FairCallQueue metrics | Major | ipc | Erik Krogen | Erik Krogen
HDFS-14494 | Move Server logging of StatedId inside receiveRequestState() | Major | . | Konstantin Shvachko | Shweta
HDFS-14535 | The default 8KB buffer in requestFileDescriptors#BufferedOutputStream is causing lots of heap allocation in HBase when using short-circut read | Major | hdfs-client | Zheng Hu | Zheng Hu
HDFS-13730 | BlockReaderRemote.sendReadResult throws NPE | Major | hdfs-client | Wei-Chiu Chuang | Yuanbo Liu
HDFS-13770 | dfsadmin -report does not always decrease “missing blocks (with replication factor 1)” metrics when file is deleted | Major | hdfs | Kitti Nanasi | Kitti Nanasi
HDFS-14101 | Random failure of testListCorruptFilesCorruptedBlock | Major | test | Kihwal Lee | Zsolt Venczel
HDFS-14465 | When the Block expected replications is larger than the number of DataNodes, entering maintenance will never exit. | Major | . | Yicong Cai | Yicong Cai
HDFS-14541 | When evictableMmapped or evictable size is zero, do not throw NoSuchElementException | Major | hdfs-client, performance | Zheng Hu | Lisheng Sun
HDFS-14629 | Property value Hard Coded in DNConf.java | Trivial | . | hemanthboyina | hemanthboyina
HDFS-12703 | Exceptions are fatal to decommissioning monitor | Critical | namenode | Daryn Sharp | Xiaoqiao He
HDFS-12748 | NameNode memory leak when accessing webhdfs GETHOMEDIRECTORY | Major | hdfs | Jiandan Yang | Weiwei Yang
HADOOP-16386 | FindBugs warning in branch-2: GlobalStorageStatistics defines non-transient non-serializable instance field map | Major | fs | Wei-Chiu Chuang | Masatake Iwasaki
MAPREDUCE-6521 | MiniMRYarnCluster should not create /tmp/hadoop-yarn/staging on local filesystem in unit test | Major | test | Masatake Iwasaki | Masatake Iwasaki
MAPREDUCE-7076 | TestNNBench#testNNBenchCreateReadAndDelete failing in our internal build | Minor | test | Rushabh Shah | kevin su
YARN-9668 | UGI conf doesn’t read user overridden configurations on RM and NM startup | Major | . | Jonathan Hung | Jonathan Hung
HADOOP-9844 | NPE when trying to create an error message response of SASL RPC | Major | ipc | Steve Loughran | Steve Loughran
HADOOP-16245 | Enabling SSL within LdapGroupsMapping can break system SSL configs | Major | common, security | Erik Krogen | Erik Krogen
HDFS-14660 | [SBN Read] ObserverNameNode should throw StandbyException for requests not from ObserverProxyProvider | Major | . | Chao Sun | Chao Sun
HDFS-14429 | Block remain in COMMITTED but not COMPLETE caused by Decommission | Major | . | Yicong Cai | Yicong Cai
HDFS-14672 | Backport HDFS-12703 to branch-2 | Major | namenode | Xiaoqiao He | Xiaoqiao He
HADOOP-16435 | RpcMetrics should not be retained forever | Critical | rpc-server | Zoltan Haindrich | Zoltan Haindrich
HDFS-14464 | Remove unnecessary log message from DFSInputStream | Trivial | . | Kihwal Lee | Chao Sun
HDFS-14569 | Result of crypto -listZones is not formatted properly | Major | . | hemanthboyina | hemanthboyina
YARN-9596 | QueueMetrics has incorrect metrics when labelled partitions are involved | Major | capacity scheduler | Muhammad Samir Khan | Muhammad Samir Khan
HADOOP-15237 | In KMS docs there should be one space between KMS_LOG and NOTE | Minor | kms | Snigdhanjali Mishra | Snigdhanjali Mishra
HDFS-14462 | WebHDFS throws “Error writing request body to server” instead of DSQuotaExceededException | Major | webhdfs | Erik Krogen | Simbarashe Dzinamarira
HDFS-14631 | The DirectoryScanner doesn’t fix the wrongly placed replica. | Major | . | Jinglun | Jinglun
HDFS-14724 | Fix JDK7 compatibility in branch-2 | Blocker | . | Wei-Chiu Chuang | Chen Liang
HDFS-14423 | Percent (%) and plus (+) characters no longer work in WebHDFS | Major | webhdfs | Jing Wang | Masatake Iwasaki
HDFS-13101 | Yet another fsimage corruption related to snapshot | Major | snapshots | Yongjun Zhang | Shashikant Banerjee
HDFS-14311 | Multi-threading conflict at layoutVersion when loading block pool storage | Major | rolling upgrades | Yicong Cai | Yicong Cai
HADOOP-16494 | Add SHA-256 or SHA-512 checksum to release artifacts to comply with the release distribution policy | Blocker | build | Akira Ajisaka | Akira Ajisaka
HDFS-13977 | NameNode can kill itself if it tries to send too many txns to a QJM simultaneously | Major | namenode, qjm | Erik Krogen | Erik Krogen
YARN-9438 | launchTime not written to state store for running applications | Major | . | Jonathan Hung | Jonathan Hung
YARN-7585 | NodeManager should go unhealthy when state store throws DBException | Major | nodemanager | Wilfred Spiegelenburg | Wilfred Spiegelenburg
HDFS-14726 | Fix JN incompatibility issue in branch-2 due to backport of HDFS-10519 | Blocker | journal-node | Chen Liang | Chen Liang
YARN-9806 | TestNMSimulator#testNMSimulator fails in branch-2 | Major | . | Jonathan Hung | Jonathan Hung
YARN-9820 | RM logs InvalidStateTransitionException when app is submitted | Critical | . | Rohith Sharma K S | Prabhu Joseph
HDFS-14303 | check block directory logic not correct when there is only meta file, print no meaning warn log | Minor | datanode, hdfs | qiang Liu | qiang Liu
HADOOP-16582 | LocalFileSystem’s mkdirs() does not work as expected under viewfs. | Major | . | Kihwal Lee | Kihwal Lee
HADOOP-16581 | ValueQueue does not trigger an async refill when number of values falls below watermark | Major | common, kms | Yuval Degani | Yuval Degani
HDFS-14853 | NPE in DFSNetworkTopology#chooseRandomWithStorageType() when the excludedNode is not present | Major | . | Ranith Sardar | Ranith Sardar
YARN-9858 | Optimize RMContext getExclusiveEnforcedPartitions | Major | . | Jonathan Hung | Jonathan Hung
HDFS-14655 | [SBN Read] Namenode crashes if one of The JN is down | Critical | . | Harshakiran Reddy | Ayush Saxena
HDFS-14245 | Class cast error in GetGroups with ObserverReadProxyProvider | Major | . | Shen Yinjie | Erik Krogen
HDFS-14509 | DN throws InvalidToken due to inequality of password when upgrade NN 2.x to 3.x | Blocker | . | Yuxuan Wang | Yuxuan Wang
HADOOP-16655 | Change cipher suite when fetching tomcat tarball for branch-2 | Major | . | Jonathan Hung | Jonathan Hung

### TESTS:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
HDFS-13337 | Backport HDFS-4275 to branch-2.9 | Minor | . | Íñigo Goiri | Xiao Liang
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-13620 | Randomize the test directory path for TestHDFSFileSystemContract | 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
MAPREDUCE-7102 | Fix TestJavaSerialization for Windows due a mismatch line separator | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola
HDFS-13652 | Randomize baseDir for MiniDFSCluster in TestBlockScanner | Minor | . | Anbang Hu | Anbang Hu
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
YARN-8944 | TestContainerAllocation.testUserLimitAllocationMultipleContainers failure after YARN-8896 | Minor | capacity scheduler | Wilfred Spiegelenburg | Wilfred Spiegelenburg
HDFS-11950 | Disable libhdfs zerocopy test on Mac | Minor | libhdfs | John Zhuge | Akira Ajisaka

### SUB-TASKS:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
YARN-4081 | Add support for multiple resource types in the Resource class | Major | resourcemanager | Varun Vasudev | Varun Vasudev
YARN-4172 | Extend DominantResourceCalculator to account for all resources | Major | resourcemanager | Varun Vasudev | Varun Vasudev
YARN-4715 | Add support to read resource types from a config file | Major | nodemanager, resourcemanager | Varun Vasudev | Varun Vasudev
YARN-4829 | Add support for binary units | Major | nodemanager, resourcemanager | Varun Vasudev | Varun Vasudev
YARN-4830 | Add support for resource types in the nodemanager | Major | nodemanager | Varun Vasudev | Varun Vasudev
YARN-5242 | Update DominantResourceCalculator to consider all resource types in calculations | Major | resourcemanager | Varun Vasudev | Varun Vasudev
YARN-5586 | Update the Resources class to consider all resource types | Major | nodemanager, resourcemanager | Varun Vasudev | Varun Vasudev
YARN-6761 | Fix build for YARN-3926 branch | Major | nodemanager, resourcemanager | Varun Vasudev | Varun Vasudev
YARN-6786 | ResourcePBImpl imports cleanup | Trivial | resourcemanager | Daniel Templeton | Yeliang Cang
YARN-6788 | Improve performance of resource profile branch | Blocker | nodemanager, resourcemanager | Sunil G | Sunil G
YARN-6994 | Remove last uses of Long from resource types code | Minor | resourcemanager | Daniel Templeton | Daniel Templeton
YARN-6892 | Improve API implementation in Resources and DominantResourceCalculator class | Major | nodemanager, resourcemanager | Sunil G | Sunil G
YARN-6610 | DominantResourceCalculator#getResourceAsValue dominant param is updated to handle multiple resources | Critical | resourcemanager | Daniel Templeton | Daniel Templeton
YARN-7030 | Performance optimizations in Resource and ResourceUtils class | Critical | nodemanager, resourcemanager | Wangda Tan | Wangda Tan
YARN-7042 | Clean up unit tests after YARN-6610 | Major | test | Daniel Templeton | Daniel Templeton
YARN-6789 | Add Client API to get all supported resource types from RM | Major | nodemanager, resourcemanager | Sunil G | Sunil G
YARN-6781 | ResourceUtils#initializeResourcesMap takes an unnecessary Map parameter | Minor | resourcemanager | Daniel Templeton | Yu-Tang Lin
YARN-7067 | Optimize ResourceType information display in UI | Critical | nodemanager, resourcemanager | Wangda Tan | Wangda Tan
YARN-7039 | Fix javac and javadoc errors in YARN-3926 branch | Major | nodemanager, resourcemanager | Sunil G | Sunil G
YARN-7093 | Improve log message in ResourceUtils | Trivial | nodemanager, resourcemanager | Sunil G | Sunil G
YARN-6933 | ResourceUtils.DISALLOWED_NAMES check is duplicated | Major | resourcemanager | Daniel Templeton | Manikandan R
YARN-7137 | Move newly added APIs to unstable in YARN-3926 branch | Blocker | nodemanager, resourcemanager | Wangda Tan | Wangda Tan
HADOOP-14799 | Update nimbus-jose-jwt to 4.41.1 | Major | . | Ray Chiang | Ray Chiang
YARN-7345 | GPU Isolation: Incorrect minor device numbers written to devices.deny file | Major | . | Jonathan Hung | Jonathan Hung
HADOOP-14997 | Add hadoop-aliyun as dependency of hadoop-cloud-storage | Minor | fs/oss | Genmao Yu | Genmao Yu
YARN-7143 | FileNotFound handling in ResourceUtils is inconsistent | Major | resourcemanager | Daniel Templeton | Daniel Templeton
YARN-6909 | Use LightWeightedResource when number of resource types more than two | Critical | resourcemanager | Daniel Templeton | Sunil G
HDFS-12801 | RBF: Set MountTableResolver as default file resolver | Minor | . | Íñigo Goiri | Íñigo Goiri
YARN-7430 | Enable user re-mapping for Docker containers by default | Blocker | security, yarn | Eric Yang | Eric Yang
HADOOP-15024 | AliyunOSS: support user agent configuration and include that & Hadoop version information to oss server | Major | fs, fs/oss | Sammi Chen | Sammi Chen
HDFS-12858 | RBF: Add router admin commands usage in HDFS commands reference doc | Minor | documentation | Yiqun Lin | Yiqun Lin
HDFS-12835 | RBF: Fix Javadoc parameter errors | Minor | . | Wei Yan | Wei Yan
YARN-7573 | Gpu Information page could be empty for nodes without GPU | Major | webapp, yarn-ui-v2 | Sunil G | Sunil G
HDFS-12396 | Webhdfs file system should get delegation token from kms provider. | Major | encryption, kms, webhdfs | Rushabh Shah | Rushabh Shah
YARN-6704 | Add support for work preserving NM restart when FederationInterceptor is enabled in AMRMProxyService | Major | . | Botong Huang | Botong Huang
HDFS-12875 | RBF: Complete logic for -readonly option of dfsrouteradmin add command | Major | . | Yiqun Lin | Íñigo Goiri
YARN-7383 | Node resource is not parsed correctly for resource names containing dot | Major | nodemanager, resourcemanager | Jonathan Hung | Gergely Novák
YARN-7630 | Fix AMRMToken rollover handling in AMRMProxy | Minor | . | Botong Huang | Botong Huang
HDFS-12937 | RBF: Add more unit tests for router admin commands | Major | test | Yiqun Lin | Yiqun Lin
YARN-7032 | [ATSv2] NPE while starting hbase co-processor when HBase authorization is enabled. | Critical | . | Rohith Sharma K S | Rohith Sharma K S
HDFS-12988 | RBF: Mount table entries not properly updated in the local cache | Major | . | Íñigo Goiri | Íñigo Goiri
HDFS-12802 | RBF: Control MountTableResolver cache size | Major | . | Íñigo Goiri | Íñigo Goiri
HDFS-12934 | RBF: Federation supports global quota | Major | . | Yiqun Lin | Yiqun Lin
HDFS-12972 | RBF: Display mount table quota info in Web UI and admin command | Major | . | Yiqun Lin | Yiqun Lin
YARN-6736 | Consider writing to both ats v1 & v2 from RM for smoother upgrades | Major | timelineserver | Vrushali C | Aaron Gresch
HADOOP-15027 | AliyunOSS: Support multi-thread pre-read to improve sequential read from Hadoop to Aliyun OSS performance | Major | fs/oss | wujinhu | wujinhu
HDFS-12973 | RBF: Document global quota supporting in federation | Major | . | Yiqun Lin | Yiqun Lin
HDFS-13028 | RBF: Fix spurious TestRouterRpc#testProxyGetStats | Minor | . | Íñigo Goiri | Íñigo Goiri
HDFS-12772 | RBF: Federation Router State State Store internal API | Major | . | Íñigo Goiri | Íñigo Goiri
HDFS-13042 | RBF: Heartbeat Router State | Major | . | Íñigo Goiri | Íñigo Goiri
HDFS-13049 | RBF: Inconsistent Router OPTS config in branch-2 and branch-3 | Minor | . | Wei Yan | Wei Yan
YARN-7817 | Add Resource reference to RM’s NodeInfo object so REST API can get non memory/vcore resource usages. | Major | . | Sumana Sathish | Sunil G
HDFS-12574 | Add CryptoInputStream to WebHdfsFileSystem read call. | Major | encryption, kms, webhdfs | Rushabh Shah | Rushabh Shah
HDFS-13044 | RBF: Add a safe mode for the Router | Major | . | Íñigo Goiri | Íñigo Goiri
HDFS-13043 | RBF: Expose the state of the Routers in the federation | Major | . | Íñigo Goiri | Íñigo Goiri
HDFS-13068 | RBF: Add router admin option to manage safe mode | Major | . | Íñigo Goiri | Yiqun Lin
YARN-7860 | Fix UT failure TestRMWebServiceAppsNodelabel#testAppsRunning | Major | . | Weiwei Yang | Sunil G
HDFS-13119 | RBF: Manage unavailable clusters | Major | . | Íñigo Goiri | Yiqun Lin
YARN-7223 | Document GPU isolation feature | Blocker | . | Wangda Tan | Wangda Tan
HDFS-13187 | RBF: Fix Routers information shown in the web UI | Minor | . | Wei Yan | Wei Yan
HDFS-13184 | RBF: Improve the unit test TestRouterRPCClientRetries | Minor | test | Yiqun Lin | Yiqun Lin
HDFS-13199 | RBF: Fix the hdfs router page missing label icon issue | Major | federation, hdfs | maobaolong | maobaolong
HADOOP-15090 | Add ADL troubleshooting doc | Major | documentation, fs/adl | Steve Loughran | Steve Loughran
YARN-7919 | Refactor timelineservice-hbase module into submodules | Major | timelineservice | Haibo Chen | Haibo Chen
YARN-8003 | Backport the code structure changes in YARN-7346 to branch-2 | Major | . | Haibo Chen | Haibo Chen
HDFS-13214 | RBF: Complete document of Router configuration | Major | . | Tao Jie | Yiqun Lin
HADOOP-15267 | S3A multipart upload fails when SSE-C encryption is enabled | Critical | fs/s3 | Anis Elleuch | Anis Elleuch
HDFS-13230 | RBF: ConnectionManager’s cleanup task will compare each pool’s own active conns with its total conns | Minor | . | Wei Yan | Chao Sun
HDFS-13233 | RBF: MountTableResolver doesn’t return the correct mount point of the given path | Major | hdfs | wangzhiyuan | wangzhiyuan
HDFS-13212 | RBF: Fix router location cache issue | Major | federation, hdfs | Wu Weiwei | Wu Weiwei
HDFS-13232 | RBF: ConnectionPool should return first usable connection | Minor | . | Wei Yan | Ekanth Sethuramalingam
HDFS-13240 | RBF: Update some inaccurate document descriptions | Minor | . | Yiqun Lin | Yiqun Lin
HDFS-11399 | Many tests fails in Windows due to injecting disk failures | Major | . | Yiqun Lin | Yiqun Lin
HDFS-13241 | RBF: TestRouterSafemode failed if the port 8888 is in use | Major | hdfs, test | maobaolong | maobaolong
HDFS-13253 | RBF: Quota management incorrect parent-child relationship judgement | Major | . | Yiqun Lin | Yiqun Lin
HDFS-13226 | RBF: Throw the exception if mount table entry validated failed | Major | hdfs | maobaolong | maobaolong
HADOOP-15308 | TestConfiguration fails on Windows because of paths | Major | test | Íñigo Goiri | Xiao Liang
HDFS-12773 | RBF: Improve State Store FS implementation | Major | . | Íñigo Goiri | Íñigo Goiri
HDFS-13198 | RBF: RouterHeartbeatService throws out CachedStateStore related exceptions when starting router | Minor | . | Wei Yan | Wei Yan
HDFS-13224 | RBF: Resolvers to support mount points across multiple subclusters | Major | . | Íñigo Goiri | Íñigo Goiri
HDFS-13299 | RBF : Fix compilation error in branch-2 (TestMultipleDestinationResolver) | Blocker | . | Brahma Reddy Battula | Brahma Reddy Battula
HADOOP-15262 | AliyunOSS: move files under a directory in parallel when rename a directory | Major | fs/oss | wujinhu | wujinhu
HDFS-13215 | RBF: Move Router to its own module | Major | . | Íñigo Goiri | Wei Yan
HDFS-13307 | RBF: Improve the use of setQuota command | Major | . | liuhongtong | liuhongtong
HDFS-13250 | RBF: Router to manage requests across multiple subclusters | Major | . | Íñigo Goiri | Íñigo Goiri
HDFS-13318 | RBF: Fix FindBugs in hadoop-hdfs-rbf | Minor | . | Íñigo Goiri | Ekanth Sethuramalingam
HDFS-12792 | RBF: Test Router-based federation using HDFSContract | Major | . | Íñigo Goiri | Íñigo Goiri
YARN-7581 | HBase filters are not constructed correctly in ATSv2 | Major | ATSv2 | Haibo Chen | Haibo Chen
YARN-7986 | ATSv2 REST API queries do not return results for uppercase application tags | Critical | . | Charan Hebri | Charan Hebri
HDFS-12512 | RBF: Add WebHDFS | Major | fs | Íñigo Goiri | Wei Yan
HDFS-13291 | RBF: Implement available space based OrderResolver | Major | . | Yiqun Lin | Yiqun Lin
HDFS-13204 | RBF: Optimize name service safe mode icon | Minor | . | liuhongtong | liuhongtong
HDFS-13352 | RBF: Add xsl stylesheet for hdfs-rbf-default.xml | Major | documentation | Takanobu Asanuma | Takanobu Asanuma
YARN-8010 | Add config in FederationRMFailoverProxy to not bypass facade cache when failing over | Minor | . | Botong Huang | Botong Huang
HDFS-13347 | RBF: Cache datanode reports | Minor | . | Íñigo Goiri | Íñigo Goiri
HDFS-13289 | RBF: TestConnectionManager#testCleanup() test case need correction | Minor | . | Dibyendu Karmakar | Dibyendu Karmakar
HDFS-13364 | RBF: Support NamenodeProtocol in the Router | Major | . | Íñigo Goiri | Íñigo Goiri
HADOOP-14651 | Update okhttp version to 2.7.5 | Major | fs/adl | Ray Chiang | Ray Chiang
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
YARN-8107 | Give an informative message when incorrect format is used in ATSv2 filter attributes | Major | ATSv2 | Charan Hebri | Rohith Sharma K S
YARN-8110 | AMRMProxy recover should catch for all throwable to avoid premature exit | Major | . | Botong Huang | Botong Huang
HDFS-13402 | RBF: Fix java doc for StateStoreFileSystemImpl | Minor | hdfs | Yiran Wu | Yiran Wu
HDFS-13380 | RBF: mv/rm fail after the directory exceeded the quota limit | Major | . | Wu Weiwei | Yiqun Lin
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
HDFS-13045 | RBF: Improve error message returned from subcluster | Minor | . | Wei Yan | Íñigo Goiri
HDFS-13428 | RBF: Remove LinkedList From StateStoreFileImpl.java | Trivial | federation | David Mollitor | David Mollitor
HADOOP-14999 | AliyunOSS: provide one asynchronous multi-part based uploading mechanism | Major | fs/oss | Genmao Yu | Genmao Yu
YARN-7810 | TestDockerContainerRuntime test failures due to UID lookup of a non-existent user | Major | . | Shane Kumpf | Shane Kumpf
HDFS-13435 | RBF: Improve the error loggings for printing the stack trace | Major | . | Yiqun Lin | Yiqun Lin
YARN-7189 | Container-executor doesn’t remove Docker containers that error out early | Major | yarn | Eric Badger | Eric Badger
HDFS-13466 | RBF: Add more router-related information to the UI | Minor | . | Wei Yan | Wei Yan
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
HDFS-13478 | RBF: Disabled Nameservice store API | Major | . | Íñigo Goiri | Íñigo Goiri
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
HDFS-13326 | RBF: Improve the interfaces to modify and view mount tables | Minor | . | Wei Yan | Gang Li
HDFS-13499 | RBF: Show disabled name services in the UI | Minor | . | Íñigo Goiri | Íñigo Goiri
YARN-8215 | ATS v2 returns invalid YARN_CONTAINER_ALLOCATED_HOST_HTTP_ADDRESS from NM | Critical | ATSv2 | Yesha Vora | Rohith Sharma K S
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-13488 | RBF: Reject requests when a Router is overloaded | Major | . | Íñigo Goiri | Íñigo Goiri
HDFS-13525 | RBF: Add unit test TestStateStoreDisabledNameservice | Major | . | Yiqun Lin | Yiqun Lin
YARN-8253 | HTTPS Ats v2 api call fails with “bad HTTP parsed” | Critical | ATSv2 | Yesha Vora | Charan Hebri
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-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-7900 | [AMRMProxy] AMRMClientRelayer for stateful FederationInterceptor | Major | . | Botong Huang | Botong Huang
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
HDFS-13637 | RBF: Router fails when threadIndex (in ConnectionPool) wraps around Integer.MIN_VALUE | Critical | federation | CR Hota | CR Hota
YARN-4781 | Support intra-queue preemption for fairness ordering policy. | Major | scheduler | Wangda Tan | Eric Payne
HADOOP-15506 | Upgrade Azure Storage Sdk version to 7.0.0 and update corresponding code blocks | Minor | fs/azure | Esfandiar Manii | Esfandiar Manii
HADOOP-15529 | ContainerLaunch#testInvalidEnvVariableSubstitutionType is not supported in Windows | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola
HADOOP-15533 | Make WASB listStatus messages consistent | Trivial | fs/azure | Esfandiar Manii | Esfandiar Manii
HADOOP-15458 | TestLocalFileSystem#testFSOutputStreamBuilder fails on Windows | Minor | test | Xiao Liang | Xiao Liang
YARN-8481 | AMRMProxyPolicies should accept heartbeat response from new/unknown subclusters | Minor | amrmproxy, federation | Botong Huang | Botong Huang
HDFS-13528 | RBF: If a directory exceeds quota limit then quota usage is not refreshed for other mount entries | Major | . | Dibyendu Karmakar | Dibyendu Karmakar
HDFS-13710 | RBF: setQuota and getQuotaUsage should check the dfs.federation.router.quota.enable | Major | federation, hdfs | yanghuafeng | yanghuafeng
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
HDFS-13733 | RBF: Add Web UI configurations and descriptions to RBF document | Minor | documentation | Takanobu Asanuma | Takanobu Asanuma
HDFS-13743 | RBF: Router throws NullPointerException due to the invalid initialization of MountTableResolver | Major | . | Takanobu Asanuma | Takanobu Asanuma
HDFS-13583 | RBF: Router admin clrQuota is not synchronized with nameservice | Major | . | Dibyendu Karmakar | Dibyendu Karmakar
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-8581 | [AMRMProxy] Add sub-cluster timeout in LocalityMulticastAMRMProxyPolicy | Major | amrmproxy, federation | Botong Huang | Botong Huang
YARN-8673 | [AMRMProxy] More robust responseId resync after an YarnRM master slave switch | Major | amrmproxy | Botong Huang | Botong Huang
HDFS-13848 | Refactor NameNode failover proxy providers | Major | ha, hdfs-client | Konstantin Shvachko | Konstantin Shvachko
HDFS-13634 | RBF: Configurable value in xml for async connection request queue size. | Major | federation | CR Hota | CR Hota
HADOOP-15731 | TestDistributedShell fails on Windows | Major | . | Botong Huang | Botong Huang
HADOOP-15759 | AliyunOSS: update oss-sdk version to 3.0.0 | Major | fs/oss | wujinhu | wujinhu
HADOOP-15748 | S3 listing inconsistency can raise NPE in globber | Major | fs | Steve Loughran | Steve Loughran
YARN-8696 | [AMRMProxy] FederationInterceptor upgrade: home sub-cluster heartbeat async | Major | nodemanager | Botong Huang | Botong Huang
HADOOP-15671 | AliyunOSS: Support Assume Roles in AliyunOSS | Major | fs/oss | wujinhu | wujinhu
HDFS-13790 | RBF: Move ClientProtocol APIs to its own module | Major | . | Íñigo Goiri | Chao Sun
YARN-7652 | Handle AM register requests asynchronously in FederationInterceptor | Major | amrmproxy, federation | Subramaniam Krishnan | Botong Huang
YARN-6989 | Ensure timeline service v2 codebase gets UGI from HttpServletRequest in a consistent way | Major | timelineserver | Vrushali C | Abhishek Modi
YARN-3879 | [Storage implementation] Create HDFS backing storage implementation for ATS reads | Major | timelineserver | Tsuyoshi Ozawa | Abhishek Modi
HADOOP-15837 | DynamoDB table Update can fail S3A FS init | Major | fs/s3 | Steve Loughran | Steve Loughran
HADOOP-15607 | AliyunOSS: fix duplicated partNumber issue in AliyunOSSBlockOutputStream | Critical | . | wujinhu | wujinhu
HADOOP-15868 | AliyunOSS: update document for properties of multiple part download, multiple part upload and directory copy | Major | fs/oss | wujinhu | wujinhu
YARN-8893 | [AMRMProxy] Fix thread leak in AMRMClientRelayer and UAM client | Major | amrmproxy, federation | Botong Huang | Botong Huang
YARN-8905 | [Router] Add JvmMetricsInfo and pause monitor | Minor | . | Bibin Chundatt | Bilwa S T
HADOOP-15917 | AliyunOSS: fix incorrect ReadOps and WriteOps in statistics | Major | fs/oss | wujinhu | wujinhu
HADOOP-16009 | Replace the url of the repository in Apache Hadoop source code | Major | documentation | Akira Ajisaka | Akira Ajisaka
HADOOP-15323 | AliyunOSS: Improve copy file performance for AliyunOSSFileSystemStore | Major | fs/oss | wujinhu | wujinhu
YARN-9182 | Backport YARN-6445 resource profile performance improvements to branch-2 | Major | . | Jonathan Hung | Jonathan Hung
YARN-9181 | Backport YARN-6232 for generic resource type usage to branch-2 | Major | . | Jonathan Hung | Jonathan Hung
YARN-9177 | Use resource map for app metrics in TestCombinedSystemMetricsPublisher for branch-2 | Major | . | Jonathan Hung | Jonathan Hung
YARN-9188 | Port YARN-7136 to branch-2 | Major | . | Jonathan Hung | Jonathan Hung
YARN-9187 | Backport YARN-6852 for GPU-specific native changes to branch-2 | Major | . | Jonathan Hung | Jonathan Hung
YARN-9180 | Port YARN-7033 NM recovery of assigned resources to branch-3.0/branch-2 | Major | . | Jonathan Hung | Jonathan Hung
YARN-9280 | Backport YARN-6620 to YARN-8200/branch-2 | Major | . | Jonathan Hung | Jonathan Hung
YARN-9174 | Backport YARN-7224 for refactoring of GpuDevice class | Major | . | Jonathan Hung | Jonathan Hung
YARN-9289 | Backport YARN-7330 for GPU in UI to branch-2 | Major | . | Jonathan Hung | Jonathan Hung
HDFS-14262 | [SBN read] Unclear Log.WARN message in GlobalStateIdContext | Major | hdfs | Shweta | Shweta
YARN-8549 | Adding a NoOp timeline writer and reader plugin classes for ATSv2 | Minor | ATSv2, timelineclient, timelineserver | Prabha Manepalli | Prabha Manepalli
HADOOP-16109 | Parquet reading S3AFileSystem causes EOF | Blocker | fs/s3 | Dave Christianson | Steve Loughran
YARN-9397 | Fix empty NMResourceInfo object test failures in branch-2 | Major | . | Jonathan Hung | Jonathan Hung
HADOOP-16191 | AliyunOSS: improvements for copyFile/copyDirectory and logging | Major | fs/oss | wujinhu | wujinhu
YARN-9271 | Backport YARN-6927 for resource type support in MapReduce | Major | . | Jonathan Hung | Jonathan Hung
YARN-9291 | Backport YARN-7637 to branch-2 | Major | . | Jonathan Hung | Jonathan Hung
YARN-9409 | Port resource type changes from YARN-7237 to branch-3.0/branch-2 | Major | . | Jonathan Hung | Jonathan Hung
YARN-9272 | Backport YARN-7738 for refreshing max allocation for multiple resource types | Major | . | Jonathan Hung | Jonathan Hung
HADOOP-16205 | Backporting ABFS driver from trunk to branch 2.0 | Major | fs/azure | Esfandiar Manii | Yuan Gao
HADOOP-16269 | ABFS: add listFileStatus with StartFrom | Major | fs/azure | Da Zhou | Da Zhou
HADOOP-16306 | AliyunOSS: Remove temporary files when upload small files to OSS | Major | fs/oss | wujinhu | wujinhu
HDFS-14034 | Support getQuotaUsage API in WebHDFS | Major | fs, webhdfs | Erik Krogen | Chao Sun
YARN-9775 | RMWebServices /scheduler-conf GET returns all hadoop configurations for ZKConfigurationStore | Major | restapi | Prabhu Joseph | Prabhu Joseph
HDFS-14771 | Backport HDFS-14617 to branch-2 (Improve fsimage load time by writing sub-sections to the fsimage index) | Major | namenode | Xiaoqiao He | Xiaoqiao He
HDFS-14822 | [SBN read] Revisit GlobalStateIdContext locking when getting server state id | Major | hdfs | Chen Liang | Chen Liang
HDFS-14785 | [SBN read] Change client logging to be less aggressive | Major | hdfs | Chen Liang | Chen Liang
HDFS-14858 | [SBN read] Allow configurably enable/disable AlignmentContext on NameNode | Major | hdfs | Chen Liang | Chen Liang
HDFS-12979 | StandbyNode should upload FsImage to ObserverNode after checkpointing. | Major | hdfs | Konstantin Shvachko | Chen Liang
HADOOP-16630 | Backport HADOOP-16548 - “ABFS: Config to enable/disable flush operation” to branch-2 | Minor | fs/azure | Sneha Vijayarajan | Sneha Vijayarajan
HADOOP-16631 | Backport HADOOP-16578 - “ABFS: fileSystemExists() should not call container level apis” to Branch-2 | Major | fs/azure | Sneha Vijayarajan | Sneha Vijayarajan
HDFS-14162 | Balancer should work with ObserverNode | Major | . | Konstantin Shvachko | Erik Krogen

### OTHER:

JIRA | Summary | Priority | Component | Reporter | Contributor
--- | --- | --- | --- | --- | ---
HADOOP-15149 | CryptoOutputStream should implement StreamCapabilities | Major | fs | Mike Drob | Xiao Chen
HADOOP-15177 | Update the release year to 2018 | Blocker | build | Akira Ajisaka | Bharat Viswanadham
YARN-8412 | Move ResourceRequest.clone logic everywhere into a proper API | Minor | . | Botong Huang | Botong Huang
HDFS-13870 | WebHDFS: Document ALLOWSNAPSHOT and DISALLOWSNAPSHOT API doc | Minor | documentation, webhdfs | Siyao Meng | Siyao Meng
HDFS-12729 | Document special paths in HDFS | Major | documentation | Christopher Douglas | Masatake Iwasaki
HADOOP-15711 | Move branch-2 precommit/nightly test builds to java 8 | Critical | . | Jonathan Hung | Jonathan Hung
HDFS-14510 | Backport HDFS-13087 to branch-2 (Snapshotted encryption zone information should be immutable) | Major | encryption, snapshots | Wei-Chiu Chuang | Siyao Meng
HDFS-14585 | Backport HDFS-8901 Use ByteBuffer in DFSInputStream#read to branch2.9 | Major | . | Lisheng Sun | Lisheng Sun
HDFS-14483 | Backport HDFS-14111,HDFS-3246 ByteBuffer pread interface to branch-2.9 | Major | . | Zheng Hu | Lisheng Sun
YARN-9559 | Create AbstractContainersLauncher for pluggable ContainersLauncher logic | Major | . | Jonathan Hung | Jonathan Hung
HDFS-14725 | Backport HDFS-12914 to branch-2 (Block report leases cause missing blocks until next report) | Major | namenode | Wei-Chiu Chuang | Xiaoqiao He
YARN-8200 | Backport resource types/GPU features to branch-3.0/branch-2 | Major | . | Jonathan Hung | Jonathan Hung
HADOOP-16555 | Update commons-compress to 1.19 | Major | . | Wei-Chiu Chuang | YiSheng Lien
YARN-9730 | Support forcing configured partitions to be exclusive based on app node label | Major | . | Jonathan Hung | Jonathan Hung
HADOOP-16544 | update io.netty in branch-2 | Major | . | Wei-Chiu Chuang | Masatake Iwasaki
HADOOP-16588 | Update commons-beanutils version to 1.9.4 in branch-2 | Critical | . | Wei-Chiu Chuang | Wei-Chiu Chuang