http://git-wip-us.apache.org/repos/asf/hadoop/blob/6cf023f9/hadoop-common-project/hadoop-common/src/site/markdown/release/3.1.0/CHANGES.3.1.0.md ---------------------------------------------------------------------- diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/3.1.0/CHANGES.3.1.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/3.1.0/CHANGES.3.1.0.md new file mode 100644 index 0000000..3ccbae4 --- /dev/null +++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/3.1.0/CHANGES.3.1.0.md @@ -0,0 +1,1022 @@ + +<!--- +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +--> +# Apache Hadoop Changelog + +## Release 3.1.0 - 2018-03-30 + +### INCOMPATIBLE CHANGES: + +| JIRA | Summary | Priority | Component | Reporter | Contributor | +|:---- |:---- | :--- |:---- |:---- |:---- | +| [HADOOP-15008](https://issues.apache.org/jira/browse/HADOOP-15008) | Metrics sinks may emit too frequently if multiple sink periods are configured | Minor | metrics | Erik Krogen | Erik Krogen | +| [HDFS-12825](https://issues.apache.org/jira/browse/HDFS-12825) | Fsck report shows config key name for min replication issues | Minor | hdfs | Harshakiran Reddy | Gabor Bota | +| [HDFS-12883](https://issues.apache.org/jira/browse/HDFS-12883) | RBF: Document Router and State Store metrics | Major | documentation | Yiqun Lin | Yiqun Lin | +| [HDFS-12895](https://issues.apache.org/jira/browse/HDFS-12895) | RBF: Add ACL support for mount table | Major | . | Yiqun Lin | Yiqun Lin | +| [YARN-7190](https://issues.apache.org/jira/browse/YARN-7190) | Ensure only NM classpath in 2.x gets TSv2 related hbase jars, not the user classpath | Major | timelineclient, timelinereader, timelineserver | Vrushali C | Varun Saxena | +| [HADOOP-13282](https://issues.apache.org/jira/browse/HADOOP-13282) | S3 blob etags to be made visible in S3A status/getFileChecksum() calls | Minor | fs/s3 | Steve Loughran | Steve Loughran | +| [HDFS-13099](https://issues.apache.org/jira/browse/HDFS-13099) | RBF: Use the ZooKeeper as the default State Store | Minor | documentation | Yiqun Lin | Yiqun Lin | +| [YARN-7677](https://issues.apache.org/jira/browse/YARN-7677) | Docker image cannot set HADOOP\_CONF\_DIR | Major | . | Eric Badger | Jim Brennan | + + +### IMPORTANT ISSUES: + +| JIRA | Summary | Priority | Component | Reporter | Contributor | +|:---- |:---- | :--- |:---- |:---- |:---- | +| [HDFS-13083](https://issues.apache.org/jira/browse/HDFS-13083) | RBF: Fix doc error setting up client | Major | federation | tartarus | tartarus | + + +### NEW FEATURES: + +| JIRA | Summary | Priority | Component | Reporter | Contributor | +|:---- |:---- | :--- |:---- |:---- |:---- | +| [HADOOP-15005](https://issues.apache.org/jira/browse/HADOOP-15005) | Support meta tag element in Hadoop XML configurations | Major | . | Ajay Kumar | Ajay Kumar | +| [YARN-3926](https://issues.apache.org/jira/browse/YARN-3926) | [Umbrella] Extend the YARN resource model for easier resource-type management and profiles | Major | nodemanager, resourcemanager | Varun Vasudev | Varun Vasudev | +| [HDFS-7877](https://issues.apache.org/jira/browse/HDFS-7877) | [Umbrella] Support maintenance state for datanodes | Major | datanode, namenode | Ming Ma | Ming Ma | +| [HADOOP-13055](https://issues.apache.org/jira/browse/HADOOP-13055) | Implement linkMergeSlash and linkFallback for ViewFileSystem | Major | fs, viewfs | Zhe Zhang | Manoj Govindassamy | +| [YARN-6871](https://issues.apache.org/jira/browse/YARN-6871) | Add additional deSelects params in RMWebServices#getAppReport | Major | resourcemanager, router | Giovanni Matteo Fumarola | Tanuj Nayak | +| [HADOOP-14840](https://issues.apache.org/jira/browse/HADOOP-14840) | Tool to estimate resource requirements of an application pipeline based on prior executions | Major | tools | Subru Krishnan | Rui Li | +| [HDFS-206](https://issues.apache.org/jira/browse/HDFS-206) | Support for head in FSShell | Minor | . | Olga Natkovich | Gabor Bota | +| [YARN-5079](https://issues.apache.org/jira/browse/YARN-5079) | [Umbrella] Native YARN framework layer for services and beyond | Major | . | Vinod Kumar Vavilapalli | | +| [YARN-4757](https://issues.apache.org/jira/browse/YARN-4757) | [Umbrella] Simplified discovery of services via DNS mechanisms | Major | . | Vinod Kumar Vavilapalli | | +| [HADOOP-13786](https://issues.apache.org/jira/browse/HADOOP-13786) | Add S3A committer for zero-rename commits to S3 endpoints | Major | fs/s3 | Steve Loughran | Steve Loughran | +| [HDFS-9806](https://issues.apache.org/jira/browse/HDFS-9806) | Allow HDFS block replicas to be provided by an external storage system | Major | . | Chris Douglas | | +| [YARN-6592](https://issues.apache.org/jira/browse/YARN-6592) | [Umbrella] Rich placement constraints in YARN | Major | . | Konstantinos Karanasos | | +| [HDFS-12998](https://issues.apache.org/jira/browse/HDFS-12998) | SnapshotDiff - Provide an iterator-based listing API for calculating snapshotDiff | Major | snapshots | Shashikant Banerjee | Shashikant Banerjee | + + +### IMPROVEMENTS: + +| JIRA | Summary | Priority | Component | Reporter | Contributor | +|:---- |:---- | :--- |:---- |:---- |:---- | +| [YARN-7022](https://issues.apache.org/jira/browse/YARN-7022) | Improve click interaction in queue topology in new YARN UI | Major | yarn-ui-v2 | Abdullah Yousufi | Abdullah Yousufi | +| [YARN-7033](https://issues.apache.org/jira/browse/YARN-7033) | Add support for NM Recovery of assigned resources (e.g. GPU's, NUMA, FPGA's) to container | Major | nodemanager | Devaraj K | Devaraj K | +| [HADOOP-14850](https://issues.apache.org/jira/browse/HADOOP-14850) | Read HttpServer2 resources directly from the source tree (if exists) | Major | . | Elek, Marton | Elek, Marton | +| [HADOOP-14849](https://issues.apache.org/jira/browse/HADOOP-14849) | some wrong spelling words update | Trivial | . | Chen Hongfei | Chen Hongfei | +| [HADOOP-14844](https://issues.apache.org/jira/browse/HADOOP-14844) | Remove requirement to specify TenantGuid for MSI Token Provider | Major | fs/adl | Atul Sikaria | Atul Sikaria | +| [YARN-7057](https://issues.apache.org/jira/browse/YARN-7057) | FSAppAttempt#getResourceUsage doesn't need to consider resources queued for preemption | Major | fairscheduler | Karthik Kambatla | Karthik Kambatla | +| [HADOOP-14804](https://issues.apache.org/jira/browse/HADOOP-14804) | correct wrong parameters format order in core-default.xml | Trivial | . | Chen Hongfei | Chen Hongfei | +| [HADOOP-14864](https://issues.apache.org/jira/browse/HADOOP-14864) | FSDataInputStream#unbuffer UOE should include stream class name | Minor | fs | John Zhuge | Bharat Viswanadham | +| [HDFS-12441](https://issues.apache.org/jira/browse/HDFS-12441) | Suppress UnresolvedPathException in namenode log | Minor | . | Kihwal Lee | Kihwal Lee | +| [HADOOP-13714](https://issues.apache.org/jira/browse/HADOOP-13714) | Tighten up our compatibility guidelines for Hadoop 3 | Blocker | documentation | Karthik Kambatla | Daniel Templeton | +| [HADOOP-7308](https://issues.apache.org/jira/browse/HADOOP-7308) | Remove unused TaskLogAppender configurations from log4j.properties | Major | conf | Todd Lipcon | Todd Lipcon | +| [YARN-7045](https://issues.apache.org/jira/browse/YARN-7045) | Remove FSLeafQueue#addAppSchedulable | Major | fairscheduler | Yufei Gu | Sen Zhao | +| [HDFS-12486](https://issues.apache.org/jira/browse/HDFS-12486) | GetConf to get journalnodeslist | Major | journal-node, shell | Bharat Viswanadham | Bharat Viswanadham | +| [HDFS-12320](https://issues.apache.org/jira/browse/HDFS-12320) | Add quantiles for transactions batched in Journal sync | Major | metrics, namenode | Hanisha Koneru | Hanisha Koneru | +| [HDFS-12516](https://issues.apache.org/jira/browse/HDFS-12516) | Suppress the fsnamesystem lock warning on nn startup | Major | . | Ajay Kumar | Ajay Kumar | +| [HDFS-12304](https://issues.apache.org/jira/browse/HDFS-12304) | Remove unused parameter from FsDatasetImpl#addVolume | Minor | . | Chen Liang | Chen Liang | +| [YARN-65](https://issues.apache.org/jira/browse/YARN-65) | Reduce RM app memory footprint once app has completed | Major | resourcemanager | Jason Lowe | Manikandan R | +| [HDFS-5040](https://issues.apache.org/jira/browse/HDFS-5040) | Audit log for admin commands/ logging output of all DFS admin commands | Major | namenode | Raghu C Doppalapudi | Kuhu Shukla | +| [HDFS-12560](https://issues.apache.org/jira/browse/HDFS-12560) | Remove the extra word "it" in HdfsUserGuide.md | Trivial | . | fang zhenyi | fang zhenyi | +| [YARN-6333](https://issues.apache.org/jira/browse/YARN-6333) | Improve doc for minSharePreemptionTimeout, fairSharePreemptionTimeout and fairSharePreemptionThreshold | Major | fairscheduler | Yufei Gu | Chetna Chaudhari | +| [HDFS-12552](https://issues.apache.org/jira/browse/HDFS-12552) | Use slf4j instead of log4j in FSNamesystem | Major | . | Ajay Kumar | Ajay Kumar | +| [HADOOP-14908](https://issues.apache.org/jira/browse/HADOOP-14908) | CrossOriginFilter should trigger regex on more input | Major | common, security | Allen Wittenauer | Johannes Alberti | +| [HDFS-12455](https://issues.apache.org/jira/browse/HDFS-12455) | WebHDFS - Adding "snapshot enabled" status to ListStatus query result. | Major | snapshots, webhdfs | Ajay Kumar | Ajay Kumar | +| [HDFS-12420](https://issues.apache.org/jira/browse/HDFS-12420) | Add an option to disallow 'namenode format -force' | Major | . | Ajay Kumar | Ajay Kumar | +| [YARN-2162](https://issues.apache.org/jira/browse/YARN-2162) | add ability in Fair Scheduler to optionally configure maxResources in terms of percentage | Major | fairscheduler, scheduler | Ashwin Shankar | Yufei Gu | +| [YARN-7207](https://issues.apache.org/jira/browse/YARN-7207) | Cache the RM proxy server address | Major | RM | Yufei Gu | Yufei Gu | +| [HADOOP-14920](https://issues.apache.org/jira/browse/HADOOP-14920) | KMSClientProvider won't work with KMS delegation token retrieved from non-Java client. | Major | kms | Xiaoyu Yao | Xiaoyu Yao | +| [HADOOP-14184](https://issues.apache.org/jira/browse/HADOOP-14184) | Remove service loader config entry for ftp fs | Minor | fs | John Zhuge | Sen Zhao | +| [HDFS-12542](https://issues.apache.org/jira/browse/HDFS-12542) | Update javadoc and documentation for listStatus | Major | documentation | Ajay Kumar | Ajay Kumar | +| [YARN-7359](https://issues.apache.org/jira/browse/YARN-7359) | TestAppManager.testQueueSubmitWithNoPermission() should be scheduler agnostic | Minor | . | Haibo Chen | Haibo Chen | +| [YARN-7261](https://issues.apache.org/jira/browse/YARN-7261) | Add debug message for better download latency monitoring | Major | nodemanager | Yufei Gu | Yufei Gu | +| [HDFS-12650](https://issues.apache.org/jira/browse/HDFS-12650) | Use slf4j instead of log4j in LeaseManager | Major | . | Ajay Kumar | Ajay Kumar | +| [YARN-7357](https://issues.apache.org/jira/browse/YARN-7357) | Several methods in TestZKRMStateStore.TestZKRMStateStoreTester.TestZKRMStateStoreInternal should have @Override annotations | Trivial | resourcemanager | Daniel Templeton | Sen Zhao | +| [YARN-4163](https://issues.apache.org/jira/browse/YARN-4163) | Audit getQueueInfo and getApplications calls | Major | . | Chang Li | Chang Li | +| [HADOOP-9657](https://issues.apache.org/jira/browse/HADOOP-9657) | NetUtils.wrapException to have special handling for 0.0.0.0 addresses and :0 ports | Minor | net | Steve Loughran | Varun Saxena | +| [YARN-7397](https://issues.apache.org/jira/browse/YARN-7397) | Reduce lock contention in FairScheduler#getAppWeight() | Major | fairscheduler | Daniel Templeton | Daniel Templeton | +| [HDFS-7878](https://issues.apache.org/jira/browse/HDFS-7878) | API - expose a unique file identifier | Major | . | Sergey Shelukhin | Chris Douglas | +| [YARN-6413](https://issues.apache.org/jira/browse/YARN-6413) | FileSystem based Yarn Registry implementation | Major | amrmproxy, api, resourcemanager | Ellen Hui | Ellen Hui | +| [HDFS-12771](https://issues.apache.org/jira/browse/HDFS-12771) | Add genstamp and block size to metasave Corrupt blocks list | Minor | . | Kuhu Shukla | Kuhu Shukla | +| [HDFS-10528](https://issues.apache.org/jira/browse/HDFS-10528) | Add logging to successful standby checkpointing | Major | namenode | Xiaoyu Yao | Xiaoyu Yao | +| [YARN-7401](https://issues.apache.org/jira/browse/YARN-7401) | Reduce lock contention in ClusterNodeTracker#getClusterCapacity() | Major | resourcemanager | Daniel Templeton | Daniel Templeton | +| [HDFS-7060](https://issues.apache.org/jira/browse/HDFS-7060) | Avoid taking locks when sending heartbeats from the DataNode | Major | . | Haohui Mai | Jiandan Yang | +| [HADOOP-14872](https://issues.apache.org/jira/browse/HADOOP-14872) | CryptoInputStream should implement unbuffer | Major | fs, security | John Zhuge | John Zhuge | +| [YARN-7413](https://issues.apache.org/jira/browse/YARN-7413) | Support resource type in SLS | Major | scheduler-load-simulator | Yufei Gu | Yufei Gu | +| [HADOOP-14876](https://issues.apache.org/jira/browse/HADOOP-14876) | Create downstream developer docs from the compatibility guidelines | Critical | documentation | Daniel Templeton | Daniel Templeton | +| [YARN-7414](https://issues.apache.org/jira/browse/YARN-7414) | FairScheduler#getAppWeight() should be moved into FSAppAttempt#getWeight() | Minor | fairscheduler | Daniel Templeton | Soumabrata Chakraborty | +| [HDFS-12814](https://issues.apache.org/jira/browse/HDFS-12814) | Add blockId when warning slow mirror/disk in BlockReceiver | Trivial | hdfs | Jiandan Yang | Jiandan Yang | +| [HADOOP-13514](https://issues.apache.org/jira/browse/HADOOP-13514) | Upgrade maven surefire plugin to 2.20.1 | Major | build | Ewan Higgs | Akira Ajisaka | +| [YARN-7524](https://issues.apache.org/jira/browse/YARN-7524) | Remove unused FairSchedulerEventLog | Major | fairscheduler | Wilfred Spiegelenburg | Wilfred Spiegelenburg | +| [YARN-6851](https://issues.apache.org/jira/browse/YARN-6851) | Capacity Scheduler: document configs for controlling # containers allowed to be allocated per node heartbeat | Minor | . | Wei Yan | Wei Yan | +| [YARN-7495](https://issues.apache.org/jira/browse/YARN-7495) | Improve robustness of the AggregatedLogDeletionService | Major | log-aggregation | Jonathan Eagles | Jonathan Eagles | +| [HDFS-12594](https://issues.apache.org/jira/browse/HDFS-12594) | snapshotDiff fails if the report exceeds the RPC response limit | Major | hdfs | Shashikant Banerjee | Shashikant Banerjee | +| [HDFS-12877](https://issues.apache.org/jira/browse/HDFS-12877) | Add open(PathHandle) with default buffersize | Trivial | . | Chris Douglas | Chris Douglas | +| [HADOOP-14976](https://issues.apache.org/jira/browse/HADOOP-14976) | Set HADOOP\_SHELL\_EXECNAME explicitly in scripts | Major | . | Arpit Agarwal | Arpit Agarwal | +| [HADOOP-15039](https://issues.apache.org/jira/browse/HADOOP-15039) | Move SemaphoredDelegatingExecutor to hadoop-common | Minor | fs, fs/oss, fs/s3 | Genmao Yu | Genmao Yu | +| [YARN-6483](https://issues.apache.org/jira/browse/YARN-6483) | Add nodes transitioning to DECOMMISSIONING state to the list of updated nodes returned to the AM | Major | resourcemanager | Juan RodrÃguez Hortalá | Juan RodrÃguez Hortalá | +| [HADOOP-15056](https://issues.apache.org/jira/browse/HADOOP-15056) | Fix TestUnbuffer#testUnbufferException failure | Minor | test | Jack Bearden | Jack Bearden | +| [HADOOP-15012](https://issues.apache.org/jira/browse/HADOOP-15012) | Add readahead, dropbehind, and unbuffer to StreamCapabilities | Major | fs | John Zhuge | John Zhuge | +| [HADOOP-15104](https://issues.apache.org/jira/browse/HADOOP-15104) | AliyunOSS: change the default value of max error retry | Major | fs/oss | wujinhu | wujinhu | +| [YARN-7274](https://issues.apache.org/jira/browse/YARN-7274) | Ability to disable elasticity at leaf queue level | Major | capacityscheduler | Scott Brokaw | Zian Chen | +| [HDFS-12882](https://issues.apache.org/jira/browse/HDFS-12882) | Support full open(PathHandle) contract in HDFS | Major | hdfs-client | Chris Douglas | Chris Douglas | +| [YARN-7625](https://issues.apache.org/jira/browse/YARN-7625) | Expose NM node/containers resource utilization in JVM metrics | Major | nodemanager | Weiwei Yang | Weiwei Yang | +| [HADOOP-14914](https://issues.apache.org/jira/browse/HADOOP-14914) | Change to a safely casting long to int. | Major | . | Yufei Gu | Ajay Kumar | +| [HDFS-12910](https://issues.apache.org/jira/browse/HDFS-12910) | Secure Datanode Starter should log the port when it fails to bind | Minor | datanode | Stephen O'Donnell | Stephen O'Donnell | +| [YARN-7642](https://issues.apache.org/jira/browse/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 | +| [YARN-5418](https://issues.apache.org/jira/browse/YARN-5418) | When partial log aggregation is enabled, display the list of aggregated files on the container log page | Major | . | Siddharth Seth | Xuan Gong | +| [HADOOP-15106](https://issues.apache.org/jira/browse/HADOOP-15106) | FileSystem::open(PathHandle) should throw a specific exception on validation failure | Minor | . | Chris Douglas | Chris Douglas | +| [HDFS-12818](https://issues.apache.org/jira/browse/HDFS-12818) | Support multiple storages in DataNodeCluster / SimulatedFSDataset | Minor | datanode, test | Erik Krogen | Erik Krogen | +| [HDFS-12932](https://issues.apache.org/jira/browse/HDFS-12932) | Fix confusing LOG message for block replication | Minor | hdfs | Chao Sun | Chao Sun | +| [HDFS-9023](https://issues.apache.org/jira/browse/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-7580](https://issues.apache.org/jira/browse/YARN-7580) | ContainersMonitorImpl logged message lacks detail when exceeding memory limits | Major | nodemanager | Wilfred Spiegelenburg | Wilfred Spiegelenburg | +| [HDFS-12351](https://issues.apache.org/jira/browse/HDFS-12351) | Explicitly describe the minimal number of DataNodes required to support an EC policy in EC document. | Minor | documentation, erasure-coding | Lei (Eddy) Xu | Hanisha Koneru | +| [HDFS-12629](https://issues.apache.org/jira/browse/HDFS-12629) | NameNode UI should report total blocks count by type - replicated and erasure coded | Major | hdfs | Manoj Govindassamy | Manoj Govindassamy | +| [YARN-7687](https://issues.apache.org/jira/browse/YARN-7687) | ContainerLogAppender Improvements | Trivial | . | BELUGA BEHR | | +| [YARN-7688](https://issues.apache.org/jira/browse/YARN-7688) | Miscellaneous Improvements To ProcfsBasedProcessTree | Minor | nodemanager | BELUGA BEHR | | +| [HDFS-11847](https://issues.apache.org/jira/browse/HDFS-11847) | Enhance dfsadmin listOpenFiles command to list files blocking datanode decommissioning | Major | hdfs | Manoj Govindassamy | Manoj Govindassamy | +| [YARN-7678](https://issues.apache.org/jira/browse/YARN-7678) | Ability to enable logging of container memory stats | Major | nodemanager | Jim Brennan | Jim Brennan | +| [HDFS-11848](https://issues.apache.org/jira/browse/HDFS-11848) | Enhance dfsadmin listOpenFiles command to list files under a given path | Major | . | Manoj Govindassamy | Yiqun Lin | +| [HDFS-12945](https://issues.apache.org/jira/browse/HDFS-12945) | Switch to ClientProtocol instead of NamenodeProtocols in NamenodeWebHdfsMethods | Minor | . | Wei Yan | Wei Yan | +| [HDFS-12808](https://issues.apache.org/jira/browse/HDFS-12808) | Add LOG.isDebugEnabled() guard for LOG.debug("...") | Minor | . | Mehran Hassani | Bharat Viswanadham | +| [YARN-7722](https://issues.apache.org/jira/browse/YARN-7722) | Rename variables in MockNM, MockRM for better clarity | Trivial | . | lovekesh bansal | lovekesh bansal | +| [YARN-7622](https://issues.apache.org/jira/browse/YARN-7622) | Allow fair-scheduler configuration on HDFS | Minor | fairscheduler, resourcemanager | Greg Phillips | Greg Phillips | +| [HADOOP-15033](https://issues.apache.org/jira/browse/HADOOP-15033) | Use java.util.zip.CRC32C for Java 9 and above | Major | performance, util | Dmitry Chuyko | Dmitry Chuyko | +| [YARN-7590](https://issues.apache.org/jira/browse/YARN-7590) | Improve container-executor validation check | Major | security, yarn | Eric Yang | Eric Yang | +| [HADOOP-15157](https://issues.apache.org/jira/browse/HADOOP-15157) | Zookeeper authentication related properties to support CredentialProviders | Minor | security | Gergo Repas | Gergo Repas | +| [MAPREDUCE-7029](https://issues.apache.org/jira/browse/MAPREDUCE-7029) | FileOutputCommitter is slow on filesystems lacking recursive delete | Minor | . | Karthik Palaniappan | Karthik Palaniappan | +| [HADOOP-15114](https://issues.apache.org/jira/browse/HADOOP-15114) | Add closeStreams(...) to IOUtils | Major | . | Ajay Kumar | Ajay Kumar | +| [MAPREDUCE-6984](https://issues.apache.org/jira/browse/MAPREDUCE-6984) | MR AM to clean up temporary files from previous attempt in case of no recovery | Major | applicationmaster | Gergo Repas | Gergo Repas | +| [HDFS-13036](https://issues.apache.org/jira/browse/HDFS-13036) | Reusing the volume storage ID obtained by replicaInfo | Major | datanode | liaoyuxiangqin | liaoyuxiangqin | +| [YARN-7755](https://issues.apache.org/jira/browse/YARN-7755) | Clean up deprecation messages for allocation increments in FS config | Minor | fairscheduler | Wilfred Spiegelenburg | Wilfred Spiegelenburg | +| [MAPREDUCE-7022](https://issues.apache.org/jira/browse/MAPREDUCE-7022) | Fast fail rogue jobs based on task scratch dir size | Major | task | Johan Gustavsson | Johan Gustavsson | +| [YARN-2185](https://issues.apache.org/jira/browse/YARN-2185) | Use pipes when localizing archives | Major | nodemanager | Jason Lowe | Miklos Szegedi | +| [HDFS-13092](https://issues.apache.org/jira/browse/HDFS-13092) | Reduce verbosity for ThrottledAsyncChecker.java:schedule | Minor | datanode | Mukul Kumar Singh | Mukul Kumar Singh | +| [HDFS-13062](https://issues.apache.org/jira/browse/HDFS-13062) | Provide support for JN to use separate journal disk per namespace | Major | federation, journal-node | Bharat Viswanadham | Bharat Viswanadham | +| [HADOOP-15170](https://issues.apache.org/jira/browse/HADOOP-15170) | Add symlink support to FileUtil#unTarUsingJava | Minor | util | Jason Lowe | Ajay Kumar | +| [HADOOP-15168](https://issues.apache.org/jira/browse/HADOOP-15168) | Add kdiag tool to hadoop command | Minor | . | Bharat Viswanadham | Bharat Viswanadham | +| [HDFS-13073](https://issues.apache.org/jira/browse/HDFS-13073) | Cleanup code in InterQJournalProtocol.proto | Minor | journal-node | Bharat Viswanadham | Bharat Viswanadham | +| [HADOOP-15212](https://issues.apache.org/jira/browse/HADOOP-15212) | Add independent secret manager method for logging expired tokens | Major | security | Daryn Sharp | Daryn Sharp | +| [YARN-7841](https://issues.apache.org/jira/browse/YARN-7841) | Cleanup AllocationFileLoaderService's reloadAllocations method | Minor | yarn | Szilard Nemeth | Szilard Nemeth | +| [HDFS-12947](https://issues.apache.org/jira/browse/HDFS-12947) | Limit the number of Snapshots allowed to be created for a Snapshottable Directory | Major | snapshots | Shashikant Banerjee | Shashikant Banerjee | +| [HDFS-12933](https://issues.apache.org/jira/browse/HDFS-12933) | Improve logging when DFSStripedOutputStream failed to write some blocks | Minor | erasure-coding | Xiao Chen | chencan | +| [YARN-7728](https://issues.apache.org/jira/browse/YARN-7728) | Expose container preemptions related information in Capacity Scheduler queue metrics | Major | . | Eric Payne | Eric Payne | +| [YARN-7655](https://issues.apache.org/jira/browse/YARN-7655) | Avoid AM preemption caused by RRs for specific nodes or racks | Major | fairscheduler | Steven Rand | Steven Rand | +| [HADOOP-15187](https://issues.apache.org/jira/browse/HADOOP-15187) | Remove ADL mock test dependency on REST call invoked from Java SDK | Major | fs/adl | Vishwajeet Dusane | Vishwajeet Dusane | +| [MAPREDUCE-7048](https://issues.apache.org/jira/browse/MAPREDUCE-7048) | Uber AM can crash due to unknown task in statusUpdate | Major | mr-am | Peter Bacsko | Peter Bacsko | +| [HADOOP-15195](https://issues.apache.org/jira/browse/HADOOP-15195) | With SELinux enabled, directories mounted with start-build-env.sh may not be accessible. | Major | build | Grigori Rybkine | Grigori Rybkine | +| [HADOOP-14531](https://issues.apache.org/jira/browse/HADOOP-14531) | [Umbrella] Improve S3A error handling & reporting | Blocker | fs/s3 | Steve Loughran | Steve Loughran | +| [HADOOP-15204](https://issues.apache.org/jira/browse/HADOOP-15204) | Add Configuration API for parsing storage sizes | Minor | conf | Anu Engineer | Anu Engineer | +| [HDFS-13142](https://issues.apache.org/jira/browse/HDFS-13142) | Define and Implement a DiifList Interface to store and manage SnapshotDiffs | Major | snapshots | Shashikant Banerjee | Shashikant Banerjee | +| [HADOOP-13972](https://issues.apache.org/jira/browse/HADOOP-13972) | ADLS to support per-store configuration | Major | fs/adl | John Zhuge | Sharad Sonker | +| [HDFS-13153](https://issues.apache.org/jira/browse/HDFS-13153) | Enable HDFS diskbalancer by default | Major | diskbalancer | Ajay Kumar | Ajay Kumar | +| [HADOOP-14875](https://issues.apache.org/jira/browse/HADOOP-14875) | Create end user documentation from the compatibility guidelines | Critical | documentation | Daniel Templeton | Daniel Templeton | +| [HADOOP-15070](https://issues.apache.org/jira/browse/HADOOP-15070) | add test to verify FileSystem and paths differentiate on user info | Minor | fs, test | Steve Loughran | Steve Loughran | +| [YARN-7813](https://issues.apache.org/jira/browse/YARN-7813) | Capacity Scheduler Intra-queue Preemption should be configurable for each queue | Major | capacity scheduler, scheduler preemption | Eric Payne | Eric Payne | +| [HDFS-13168](https://issues.apache.org/jira/browse/HDFS-13168) | XmlImageVisitor - Prefer Array over LinkedList | Minor | hdfs | BELUGA BEHR | BELUGA BEHR | +| [HDFS-13167](https://issues.apache.org/jira/browse/HDFS-13167) | DatanodeAdminManager Improvements | Trivial | hdfs | BELUGA BEHR | BELUGA BEHR | +| [HADOOP-15235](https://issues.apache.org/jira/browse/HADOOP-15235) | Authentication Tokens should use HMAC instead of MAC | Major | security | Robert Kanter | Robert Kanter | +| [HADOOP-12897](https://issues.apache.org/jira/browse/HADOOP-12897) | KerberosAuthenticator.authenticate to include URL on IO failures | Minor | security | Steve Loughran | Ajay Kumar | +| [HDFS-13175](https://issues.apache.org/jira/browse/HDFS-13175) | Add more information for checking argument in DiskBalancerVolume | Minor | diskbalancer | Lei (Eddy) Xu | Lei (Eddy) Xu | +| [HDFS-11187](https://issues.apache.org/jira/browse/HDFS-11187) | Optimize disk access for last partial chunk checksum of Finalized replica | Major | datanode | Wei-Chiu Chuang | Gabor Bota | +| [HADOOP-15255](https://issues.apache.org/jira/browse/HADOOP-15255) | Upper/Lower case conversion support for group names in LdapGroupsMapping | Major | . | Nanda kumar | Nanda kumar | +| [HADOOP-13374](https://issues.apache.org/jira/browse/HADOOP-13374) | Add the L&N verification script | Major | . | Xiao Chen | Allen Wittenauer | +| [HADOOP-15178](https://issues.apache.org/jira/browse/HADOOP-15178) | Generalize NetUtils#wrapException to handle other subclasses with String Constructor | Major | . | Ajay Kumar | Ajay Kumar | +| [HDFS-13193](https://issues.apache.org/jira/browse/HDFS-13193) | Various Improvements for BlockTokenSecretManager | Trivial | hdfs | BELUGA BEHR | BELUGA BEHR | +| [HADOOP-14959](https://issues.apache.org/jira/browse/HADOOP-14959) | DelegationTokenAuthenticator.authenticate() to wrap network exceptions | Minor | net, security | Steve Loughran | Ajay Kumar | +| [MAPREDUCE-7010](https://issues.apache.org/jira/browse/MAPREDUCE-7010) | Make Job History File Permissions configurable | Major | . | Andras Bokor | Gergely Novák | +| [HDFS-13192](https://issues.apache.org/jira/browse/HDFS-13192) | Change the code order in getFileEncryptionInfo to avoid unnecessary call of assignment | Minor | encryption | LiXin Ge | LiXin Ge | +| [MAPREDUCE-7061](https://issues.apache.org/jira/browse/MAPREDUCE-7061) | SingleCluster setup document needs to be updated | Major | . | Bharat Viswanadham | Bharat Viswanadham | +| [HADOOP-15263](https://issues.apache.org/jira/browse/HADOOP-15263) | hadoop cloud-storage module to mark hadoop-common as provided; add azure-datalake | Minor | build | Steve Loughran | Steve Loughran | +| [HADOOP-15007](https://issues.apache.org/jira/browse/HADOOP-15007) | Stabilize and document Configuration \<tag\> element | Blocker | conf | Steve Loughran | Ajay Kumar | +| [HDFS-13102](https://issues.apache.org/jira/browse/HDFS-13102) | Implement SnapshotSkipList class to store Multi level DirectoryDiffs | Major | snapshots | Shashikant Banerjee | Shashikant Banerjee | +| [HDFS-13202](https://issues.apache.org/jira/browse/HDFS-13202) | Fix the outdated javadocs in HAUtil | Trivial | . | Chao Sun | Chao Sun | +| [YARN-5028](https://issues.apache.org/jira/browse/YARN-5028) | RMStateStore should trim down app state for completed applications | Major | resourcemanager | Karthik Kambatla | Gergo Repas | +| [HADOOP-15279](https://issues.apache.org/jira/browse/HADOOP-15279) | increase maven heap size recommendations | Minor | build, documentation, test | Allen Wittenauer | Allen Wittenauer | +| [HDFS-13171](https://issues.apache.org/jira/browse/HDFS-13171) | Handle Deletion of nodes in SnasphotSkipList | Major | snapshots | Shashikant Banerjee | Shashikant Banerjee | +| [HADOOP-15252](https://issues.apache.org/jira/browse/HADOOP-15252) | Checkstyle version is not compatible with IDEA's checkstyle plugin | Major | . | Andras Bokor | Andras Bokor | +| [HDFS-13173](https://issues.apache.org/jira/browse/HDFS-13173) | Replace ArrayList with DirectoryDiffList(SnapshotSkipList) to store DirectoryDiffs | Major | snapshots | Shashikant Banerjee | Shashikant Banerjee | +| [HADOOP-15282](https://issues.apache.org/jira/browse/HADOOP-15282) | HADOOP-15235 broke TestHttpFSServerWebServer | Major | test | Robert Kanter | Robert Kanter | +| [HDFS-13170](https://issues.apache.org/jira/browse/HDFS-13170) | Port webhdfs unmaskedpermission parameter to HTTPFS | Major | . | Stephen O'Donnell | Stephen O'Donnell | +| [HDFS-13223](https://issues.apache.org/jira/browse/HDFS-13223) | Reduce DiffListBySkipList memory usage | Major | snapshots | Tsz Wo Nicholas Sze | Shashikant Banerjee | +| [HDFS-13227](https://issues.apache.org/jira/browse/HDFS-13227) | Add a method to calculate cumulative diff over multiple snapshots in DirectoryDiffList | Minor | snapshots | Shashikant Banerjee | Shashikant Banerjee | +| [HDFS-13222](https://issues.apache.org/jira/browse/HDFS-13222) | Update getBlocks method to take minBlockSize in RPC calls | Major | balancer & mover | Bharat Viswanadham | Bharat Viswanadham | +| [HDFS-13225](https://issues.apache.org/jira/browse/HDFS-13225) | StripeReader#checkMissingBlocks() 's IOException info is incomplete | Major | erasure-coding, hdfs-client | lufei | lufei | +| [HDFS-11394](https://issues.apache.org/jira/browse/HDFS-11394) | Support for getting erasure coding policy through WebHDFS#FileStatus | Major | erasure-coding, namenode | Kai Sasaki | Kai Sasaki | +| [HDFS-13252](https://issues.apache.org/jira/browse/HDFS-13252) | Code refactoring: Remove Diff.ListType | Major | snapshots | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-12780](https://issues.apache.org/jira/browse/HDFS-12780) | Fix spelling mistake in DistCpUtils.java | Trivial | . | Jianfei Jiang | Jianfei Jiang | +| [HADOOP-15311](https://issues.apache.org/jira/browse/HADOOP-15311) | HttpServer2 needs a way to configure the acceptor/selector count | Major | common | Erik Krogen | Erik Krogen | +| [HDFS-13235](https://issues.apache.org/jira/browse/HDFS-13235) | DiskBalancer: Update Documentation to add newly added options | Major | diskbalancer, documentation | Bharat Viswanadham | Bharat Viswanadham | +| [HDFS-336](https://issues.apache.org/jira/browse/HDFS-336) | dfsadmin -report should report number of blocks from datanode | Minor | . | Lohit Vijayarenu | Bharat Viswanadham | +| [HDFS-11600](https://issues.apache.org/jira/browse/HDFS-11600) | Refactor TestDFSStripedOutputStreamWithFailure test classes | Minor | test | Andrew Wang | SammiChen | +| [HDFS-13257](https://issues.apache.org/jira/browse/HDFS-13257) | Code cleanup: INode never throws QuotaExceededException | Major | namenode | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-13275](https://issues.apache.org/jira/browse/HDFS-13275) | Adding log for BlockPoolManager#refreshNamenodes failures | Minor | datanode | Xiaoyu Yao | Ajay Kumar | +| [HDFS-13246](https://issues.apache.org/jira/browse/HDFS-13246) | FileInputStream redundant closes in readReplicasFromCache | Minor | datanode | liaoyuxiangqin | liaoyuxiangqin | +| [HADOOP-15209](https://issues.apache.org/jira/browse/HADOOP-15209) | DistCp to eliminate needless deletion of files under already-deleted directories | Major | tools/distcp | Steve Loughran | Steve Loughran | +| [MAPREDUCE-7047](https://issues.apache.org/jira/browse/MAPREDUCE-7047) | Make HAR tool support IndexedLogAggregtionController | Major | . | Xuan Gong | Xuan Gong | +| [HDFS-12884](https://issues.apache.org/jira/browse/HDFS-12884) | BlockUnderConstructionFeature.truncateBlock should be of type BlockInfo | Major | namenode | Konstantin Shvachko | chencan | +| [YARN-7064](https://issues.apache.org/jira/browse/YARN-7064) | Use cgroup to get container resource utilization | Major | nodemanager | Miklos Szegedi | Miklos Szegedi | +| [HADOOP-15334](https://issues.apache.org/jira/browse/HADOOP-15334) | Upgrade Maven surefire plugin | Major | build | Arpit Agarwal | Arpit Agarwal | +| [HADOOP-14825](https://issues.apache.org/jira/browse/HADOOP-14825) | Ãber-JIRA: S3Guard Phase II: Hadoop 3.1 features | Major | fs/s3 | Steve Loughran | Steve Loughran | +| [HADOOP-15312](https://issues.apache.org/jira/browse/HADOOP-15312) | Undocumented KeyProvider configuration keys | Major | . | Wei-Chiu Chuang | LiXin Ge | +| [YARN-7623](https://issues.apache.org/jira/browse/YARN-7623) | Fix the CapacityScheduler Queue configuration documentation | Major | . | Arun Suresh | Jonathan Hung | +| [HDFS-13314](https://issues.apache.org/jira/browse/HDFS-13314) | NameNode should optionally exit if it detects FsImage corruption | Major | namenode | Arpit Agarwal | Arpit Agarwal | +| [YARN-8076](https://issues.apache.org/jira/browse/YARN-8076) | Support to specify application tags in distributed shell | Major | distributed-shell | Weiwei Yang | Weiwei Yang | + + +### BUG FIXES: + +| JIRA | Summary | Priority | Component | Reporter | Contributor | +|:---- |:---- | :--- |:---- |:---- |:---- | +| [YARN-7023](https://issues.apache.org/jira/browse/YARN-7023) | Incorrect ReservationId.compareTo() implementation | Minor | reservation system | Oleg Danilov | Oleg Danilov | +| [YARN-7152](https://issues.apache.org/jira/browse/YARN-7152) | [ATSv2] Registering timeline client before AMRMClient service init throw exception. | Major | timelineclient | Rohith Sharma K S | Rohith Sharma K S | +| [YARN-6992](https://issues.apache.org/jira/browse/YARN-6992) | Kill application button is visible even if the application is FINISHED in RM UI | Major | . | Sumana Sathish | Suma Shivaprasad | +| [YARN-7140](https://issues.apache.org/jira/browse/YARN-7140) | CollectorInfo should have Public visibility | Minor | . | Varun Saxena | Varun Saxena | +| [YARN-7130](https://issues.apache.org/jira/browse/YARN-7130) | ATSv2 documentation changes post merge | Major | timelineserver | Varun Saxena | Varun Saxena | +| [HDFS-12406](https://issues.apache.org/jira/browse/HDFS-12406) | dfsadmin command prints "Exception encountered" even if there is no exception, when debug is enabled | Minor | hdfs-client | Nanda kumar | Nanda kumar | +| [YARN-4727](https://issues.apache.org/jira/browse/YARN-4727) | Unable to override the $HADOOP\_CONF\_DIR env variable for container | Major | nodemanager | Terence Yim | Jason Lowe | +| [YARN-7163](https://issues.apache.org/jira/browse/YARN-7163) | RMContext need not to be injected to webapp and other Always Running services. | Blocker | resourcemanager | Rohith Sharma K S | Rohith Sharma K S | +| [HDFS-12424](https://issues.apache.org/jira/browse/HDFS-12424) | Datatable sorting on the Datanode Information page in the Namenode UI is broken | Major | . | Shawna Martell | Shawna Martell | +| [HDFS-12323](https://issues.apache.org/jira/browse/HDFS-12323) | NameNode terminates after full GC thinking QJM unresponsive if full GC is much longer than timeout | Major | namenode, qjm | Erik Krogen | Erik Krogen | +| [YARN-7149](https://issues.apache.org/jira/browse/YARN-7149) | Cross-queue preemption sometimes starves an underserved queue | Major | capacity scheduler | Eric Payne | Eric Payne | +| [YARN-7172](https://issues.apache.org/jira/browse/YARN-7172) | ResourceCalculator.fitsIn() should not take a cluster resource parameter | Major | scheduler | Daniel Templeton | Sen Zhao | +| [YARN-7199](https://issues.apache.org/jira/browse/YARN-7199) | Fix TestAMRMClientContainerRequest.testOpportunisticAndGuaranteedRequests | Blocker | . | Botong Huang | Botong Huang | +| [MAPREDUCE-6960](https://issues.apache.org/jira/browse/MAPREDUCE-6960) | Shuffle Handler prints disk error stack traces for every read failure. | Major | . | Kuhu Shukla | Kuhu Shukla | +| [HDFS-12480](https://issues.apache.org/jira/browse/HDFS-12480) | TestNameNodeMetrics#testTransactionAndCheckpointMetrics Fails in trunk | Blocker | test | Brahma Reddy Battula | Hanisha Koneru | +| [HDFS-11799](https://issues.apache.org/jira/browse/HDFS-11799) | Introduce a config to allow setting up write pipeline with fewer nodes than replication factor | Major | . | Yongjun Zhang | Brahma Reddy Battula | +| [YARN-7196](https://issues.apache.org/jira/browse/YARN-7196) | Fix finicky TestContainerManager tests | Major | . | Arun Suresh | Arun Suresh | +| [YARN-6771](https://issues.apache.org/jira/browse/YARN-6771) | Use classloader inside configuration class to make new classes | Major | . | Jongyoul Lee | Jongyoul Lee | +| [HDFS-12526](https://issues.apache.org/jira/browse/HDFS-12526) | FSDirectory should use Time.monotonicNow for durations | Minor | . | Chetna Chaudhari | Bharat Viswanadham | +| [HDFS-12371](https://issues.apache.org/jira/browse/HDFS-12371) | "BlockVerificationFailures" and "BlocksVerified" show up as 0 in Datanode JMX | Major | metrics | Sai Nukavarapu | Hanisha Koneru | +| [YARN-7034](https://issues.apache.org/jira/browse/YARN-7034) | DefaultLinuxContainerRuntime and DockerLinuxContainerRuntime sends client environment variables to container-executor | Blocker | nodemanager | Miklos Szegedi | Miklos Szegedi | +| [HDFS-12507](https://issues.apache.org/jira/browse/HDFS-12507) | StripedBlockUtil.java:694: warning - Tag @link: reference not found: StripingCell | Minor | documentation | Tsz Wo Nicholas Sze | Mukul Kumar Singh | +| [MAPREDUCE-6966](https://issues.apache.org/jira/browse/MAPREDUCE-6966) | DistSum should use Time.monotonicNow for measuring durations | Minor | . | Chetna Chaudhari | Chetna Chaudhari | +| [YARN-6878](https://issues.apache.org/jira/browse/YARN-6878) | TestCapacityScheduler.testDefaultNodeLabelExpressionQueueConfig() has the args to assertEqual() in the wrong order | Trivial | capacity scheduler, test | Daniel Templeton | Sen Zhao | +| [HDFS-12064](https://issues.apache.org/jira/browse/HDFS-12064) | Reuse object mapper in HDFS | Minor | . | Mingliang Liu | Hanisha Koneru | +| [HDFS-12535](https://issues.apache.org/jira/browse/HDFS-12535) | Change the Scope of the Class DFSUtilClient to Private | Major | . | Bharat Viswanadham | Bharat Viswanadham | +| [HDFS-12536](https://issues.apache.org/jira/browse/HDFS-12536) | Add documentation for getconf command with -journalnodes option | Major | . | Bharat Viswanadham | Bharat Viswanadham | +| [HADOOP-14905](https://issues.apache.org/jira/browse/HADOOP-14905) | Fix javadocs issues in Hadoop HDFS-NFS | Major | nfs | Mukul Kumar Singh | Mukul Kumar Singh | +| [HADOOP-14904](https://issues.apache.org/jira/browse/HADOOP-14904) | Fix javadocs issues in Hadoop HDFS | Minor | . | Mukul Kumar Singh | Mukul Kumar Singh | +| [HDFS-12339](https://issues.apache.org/jira/browse/HDFS-12339) | NFS Gateway on Shutdown Gives Unregistration Failure. Does Not Unregister with rpcbind Portmapper | Major | nfs | Sailesh Patel | Mukul Kumar Singh | +| [HDFS-12375](https://issues.apache.org/jira/browse/HDFS-12375) | Fail to start/stop journalnodes using start-dfs.sh/stop-dfs.sh. | Major | federation, journal-node, scripts | Wenxin He | Bharat Viswanadham | +| [YARN-7153](https://issues.apache.org/jira/browse/YARN-7153) | Remove duplicated code in AMRMClientAsyncImpl.java | Minor | client | Sen Zhao | Sen Zhao | +| [HADOOP-14897](https://issues.apache.org/jira/browse/HADOOP-14897) | Loosen compatibility guidelines for native dependencies | Blocker | documentation, native | Chris Douglas | Daniel Templeton | +| [HDFS-12529](https://issues.apache.org/jira/browse/HDFS-12529) | Get source for config tags from file name | Major | . | Ajay Kumar | Ajay Kumar | +| [YARN-7118](https://issues.apache.org/jira/browse/YARN-7118) | AHS REST API can return NullPointerException | Major | . | Prabhu Joseph | Billie Rinaldi | +| [HDFS-12495](https://issues.apache.org/jira/browse/HDFS-12495) | TestPendingInvalidateBlock#testPendingDeleteUnknownBlocks fails intermittently | Major | . | Eric Badger | Eric Badger | +| [HADOOP-14822](https://issues.apache.org/jira/browse/HADOOP-14822) | hadoop-project/pom.xml is executable | Minor | . | Akira Ajisaka | Ajay Kumar | +| [YARN-7157](https://issues.apache.org/jira/browse/YARN-7157) | Add admin configuration to filter per-user's apps in secure cluster | Major | webapp | Sunil G | Sunil G | +| [YARN-7257](https://issues.apache.org/jira/browse/YARN-7257) | AggregatedLogsBlock reports a bad 'end' value as a bad 'start' value | Major | log-aggregation | Jason Lowe | Jason Lowe | +| [YARN-7084](https://issues.apache.org/jira/browse/YARN-7084) | TestSchedulingMonitor#testRMStarts fails sporadically | Major | . | Jason Lowe | Jason Lowe | +| [HDFS-12271](https://issues.apache.org/jira/browse/HDFS-12271) | Incorrect statement in Downgrade section of HDFS Rolling Upgrade document | Minor | documentation | Nanda kumar | Nanda kumar | +| [HDFS-12576](https://issues.apache.org/jira/browse/HDFS-12576) | JournalNodes are getting started, even though dfs.namenode.shared.edits.dir is not configured | Major | journal-node | Bharat Viswanadham | Bharat Viswanadham | +| [HDFS-11968](https://issues.apache.org/jira/browse/HDFS-11968) | ViewFS: StoragePolicies commands fail with HDFS federation | Major | hdfs | Mukul Kumar Singh | Mukul Kumar Singh | +| [YARN-6943](https://issues.apache.org/jira/browse/YARN-6943) | Update Yarn to YARN in documentation | Minor | documentation | Miklos Szegedi | Chetna Chaudhari | +| [YARN-7211](https://issues.apache.org/jira/browse/YARN-7211) | AMSimulator in SLS does't work due to refactor of responseId | Blocker | scheduler-load-simulator | Yufei Gu | Botong Huang | +| [HADOOP-14459](https://issues.apache.org/jira/browse/HADOOP-14459) | SerializationFactory shouldn't throw a NullPointerException if the serializations list is not defined | Minor | . | Nandor Kollar | Nandor Kollar | +| [YARN-7279](https://issues.apache.org/jira/browse/YARN-7279) | Fix typo in helper message of ContainerLauncher | Trivial | . | Elek, Marton | Elek, Marton | +| [YARN-7258](https://issues.apache.org/jira/browse/YARN-7258) | Add Node and Rack Hints to Opportunistic Scheduler | Major | . | Arun Suresh | kartheek muthyala | +| [YARN-7285](https://issues.apache.org/jira/browse/YARN-7285) | ContainerExecutor always launches with priorities due to yarn-default property | Minor | nodemanager | Jason Lowe | Jason Lowe | +| [HDFS-12494](https://issues.apache.org/jira/browse/HDFS-12494) | libhdfs SIGSEGV in setTLSExceptionStrings | Major | libhdfs | John Zhuge | John Zhuge | +| [YARN-7245](https://issues.apache.org/jira/browse/YARN-7245) | Max AM Resource column in Active Users Info section of Capacity Scheduler UI page should be updated per-user | Major | capacity scheduler, yarn | Eric Payne | Eric Payne | +| [HDFS-11575](https://issues.apache.org/jira/browse/HDFS-11575) | Supporting HDFS NFS gateway with Federated HDFS | Major | nfs | Mukul Kumar Singh | Mukul Kumar Singh | +| [HADOOP-14910](https://issues.apache.org/jira/browse/HADOOP-14910) | Upgrade netty-all jar to latest 4.0.x.Final | Critical | . | Vinayakumar B | Vinayakumar B | +| [MAPREDUCE-6951](https://issues.apache.org/jira/browse/MAPREDUCE-6951) | Improve exception message when mapreduce.jobhistory.webapp.address is in wrong format | Major | applicationmaster | Prabhu Joseph | Prabhu Joseph | +| [HDFS-12627](https://issues.apache.org/jira/browse/HDFS-12627) | Fix typo in DFSAdmin command output | Trivial | . | Ajay Kumar | Ajay Kumar | +| [HADOOP-13102](https://issues.apache.org/jira/browse/HADOOP-13102) | Update GroupsMapping documentation to reflect the new changes | Major | documentation | Anu Engineer | Esther Kundin | +| [YARN-7270](https://issues.apache.org/jira/browse/YARN-7270) | Fix unsafe casting from long to int for class Resource and its sub-classes | Major | resourcemanager | Yufei Gu | Yufei Gu | +| [YARN-7124](https://issues.apache.org/jira/browse/YARN-7124) | LogAggregationTFileController deletes/renames while file is open | Critical | nodemanager | Daryn Sharp | Jason Lowe | +| [YARN-7341](https://issues.apache.org/jira/browse/YARN-7341) | TestRouterWebServiceUtil#testMergeMetrics is flakey | Major | federation | Robert Kanter | Robert Kanter | +| [HADOOP-14958](https://issues.apache.org/jira/browse/HADOOP-14958) | CLONE - Fix source-level compatibility after HADOOP-11252 | Blocker | . | Junping Du | Junping Du | +| [YARN-7294](https://issues.apache.org/jira/browse/YARN-7294) | TestSignalContainer#testSignalRequestDeliveryToNM fails intermittently with Fair scheduler | Major | . | Miklos Szegedi | Miklos Szegedi | +| [YARN-7355](https://issues.apache.org/jira/browse/YARN-7355) | TestDistributedShell should be scheduler agnostic | Major | . | Haibo Chen | Haibo Chen | +| [HDFS-12683](https://issues.apache.org/jira/browse/HDFS-12683) | DFSZKFailOverController re-order logic for logging Exception | Major | . | Bharat Viswanadham | Bharat Viswanadham | +| [HADOOP-14966](https://issues.apache.org/jira/browse/HADOOP-14966) | Handle JDK-8071638 for hadoop-common | Blocker | . | Bibin A Chundatt | Bibin A Chundatt | +| [HDFS-12695](https://issues.apache.org/jira/browse/HDFS-12695) | Add a link to HDFS router federation document in site.xml | Minor | documentation | Yiqun Lin | Yiqun Lin | +| [YARN-7385](https://issues.apache.org/jira/browse/YARN-7385) | TestFairScheduler#testUpdateDemand and TestFSLeafQueue#testUpdateDemand are failing with NPE | Major | test | Robert Kanter | Yufei Gu | +| [HADOOP-14977](https://issues.apache.org/jira/browse/HADOOP-14977) | Xenial dockerfile needs ant in main build for findbugs | Trivial | build, test | Allen Wittenauer | Akira Ajisaka | +| [HDFS-12579](https://issues.apache.org/jira/browse/HDFS-12579) | JournalNodeSyncer should use fromUrl field of EditLogManifestResponse to construct servlet Url | Major | . | Hanisha Koneru | Hanisha Koneru | +| [YARN-7375](https://issues.apache.org/jira/browse/YARN-7375) | Possible NPE in RMWebapp when HA is enabled and the active RM fails | Major | . | Chandni Singh | Chandni Singh | +| [YARN-6747](https://issues.apache.org/jira/browse/YARN-6747) | TestFSAppStarvation.testPreemptionEnable fails intermittently | Major | . | Sunil G | Miklos Szegedi | +| [YARN-7336](https://issues.apache.org/jira/browse/YARN-7336) | Unsafe cast from long to int Resource.hashCode() method | Critical | resourcemanager | Daniel Templeton | Miklos Szegedi | +| [HADOOP-14990](https://issues.apache.org/jira/browse/HADOOP-14990) | Clean up jdiff xml files added for 2.8.2 release | Blocker | . | Subru Krishnan | Junping Du | +| [HADOOP-14980](https://issues.apache.org/jira/browse/HADOOP-14980) | [JDK9] Upgrade maven-javadoc-plugin to 3.0.0-M1 | Minor | build | ligongyi | ligongyi | +| [HDFS-12714](https://issues.apache.org/jira/browse/HDFS-12714) | Hadoop 3 missing fix for HDFS-5169 | Major | native | Joe McDonnell | Joe McDonnell | +| [YARN-7146](https://issues.apache.org/jira/browse/YARN-7146) | Many RM unit tests failing with FairScheduler | Major | test | Robert Kanter | Robert Kanter | +| [YARN-7396](https://issues.apache.org/jira/browse/YARN-7396) | NPE when accessing container logs due to null dirsHandler | Major | . | Jonathan Hung | Jonathan Hung | +| [YARN-7370](https://issues.apache.org/jira/browse/YARN-7370) | Preemption properties should be refreshable | Major | capacity scheduler, scheduler preemption | Eric Payne | Gergely Novák | +| [YARN-7400](https://issues.apache.org/jira/browse/YARN-7400) | incorrect log preview displayed in jobhistory server ui | Major | yarn | Santhosh B Gowda | Xuan Gong | +| [HADOOP-15013](https://issues.apache.org/jira/browse/HADOOP-15013) | Fix ResourceEstimator findbugs issues | Blocker | . | Allen Wittenauer | Arun Suresh | +| [YARN-7432](https://issues.apache.org/jira/browse/YARN-7432) | Fix DominantResourceFairnessPolicy serializable findbugs issues | Blocker | . | Allen Wittenauer | Daniel Templeton | +| [YARN-7434](https://issues.apache.org/jira/browse/YARN-7434) | Router getApps REST invocation fails with multiple RMs | Critical | . | Subru Krishnan | Ãñigo Goiri | +| [HADOOP-15015](https://issues.apache.org/jira/browse/HADOOP-15015) | TestConfigurationFieldsBase to use SLF4J for logging | Trivial | conf, test | Steve Loughran | Steve Loughran | +| [YARN-7428](https://issues.apache.org/jira/browse/YARN-7428) | Add containerId to Localizer failed logs | Minor | nodemanager | Prabhu Joseph | Prabhu Joseph | +| [YARN-4793](https://issues.apache.org/jira/browse/YARN-4793) | [Umbrella] Simplified API layer for services and beyond | Major | . | Vinod Kumar Vavilapalli | | +| [HADOOP-15018](https://issues.apache.org/jira/browse/HADOOP-15018) | Update JAVA\_HOME in create-release for Xenial Dockerfile | Blocker | build | Andrew Wang | Andrew Wang | +| [HDFS-12788](https://issues.apache.org/jira/browse/HDFS-12788) | Reset the upload button when file upload fails | Critical | ui, webhdfs | Brahma Reddy Battula | Brahma Reddy Battula | +| [YARN-7453](https://issues.apache.org/jira/browse/YARN-7453) | Fix issue where RM fails to switch to active after first successful start | Blocker | resourcemanager | Rohith Sharma K S | Rohith Sharma K S | +| [YARN-7458](https://issues.apache.org/jira/browse/YARN-7458) | TestContainerManagerSecurity is still flakey | Major | test | Robert Kanter | Robert Kanter | +| [YARN-7454](https://issues.apache.org/jira/browse/YARN-7454) | RMAppAttemptMetrics#getAggregateResourceUsage can NPE due to double lookup | Minor | resourcemanager | Jason Lowe | Jason Lowe | +| [YARN-7465](https://issues.apache.org/jira/browse/YARN-7465) | start-yarn.sh fails to start ResourceManager unless running as root | Blocker | . | Sean Mackrory | | +| [HDFS-12791](https://issues.apache.org/jira/browse/HDFS-12791) | NameNode Fsck http Connection can timeout for directories with multiple levels | Major | tools | Mukul Kumar Singh | Mukul Kumar Singh | +| [HDFS-12797](https://issues.apache.org/jira/browse/HDFS-12797) | Add Test for NFS mount of not supported filesystems like (file:///) | Minor | nfs | Mukul Kumar Singh | Mukul Kumar Singh | +| [HADOOP-14929](https://issues.apache.org/jira/browse/HADOOP-14929) | Cleanup usage of decodecomponent and use QueryStringDecoder from netty | Major | . | Bharat Viswanadham | Bharat Viswanadham | +| [HDFS-12498](https://issues.apache.org/jira/browse/HDFS-12498) | Journal Syncer is not started in Federated + HA cluster | Major | federation, journal-node | Bharat Viswanadham | Bharat Viswanadham | +| [YARN-7452](https://issues.apache.org/jira/browse/YARN-7452) | Decommissioning node default value to be zero in new YARN UI | Trivial | yarn-ui-v2 | Vasudevan Skm | Vasudevan Skm | +| [YARN-7445](https://issues.apache.org/jira/browse/YARN-7445) | Render Applications and Services page with filters in new YARN UI | Major | yarn-ui-v2 | Vasudevan Skm | Vasudevan Skm | +| [HADOOP-15031](https://issues.apache.org/jira/browse/HADOOP-15031) | Fix javadoc issues in Hadoop Common | Minor | common | Mukul Kumar Singh | Mukul Kumar Singh | +| [HDFS-12705](https://issues.apache.org/jira/browse/HDFS-12705) | WebHdfsFileSystem exceptions should retain the caused by exception | Major | hdfs | Daryn Sharp | Hanisha Koneru | +| [YARN-7462](https://issues.apache.org/jira/browse/YARN-7462) | Render outstanding resource requests on application page of new YARN UI | Major | yarn-ui-v2 | Vasudevan Skm | Vasudevan Skm | +| [YARN-7464](https://issues.apache.org/jira/browse/YARN-7464) | Introduce filters in Nodes page of new YARN UI | Major | yarn-ui-v2 | Vasudevan Skm | Vasudevan Skm | +| [YARN-7361](https://issues.apache.org/jira/browse/YARN-7361) | Improve the docker container runtime documentation | Major | . | Shane Kumpf | Shane Kumpf | +| [YARN-7492](https://issues.apache.org/jira/browse/YARN-7492) | Set up SASS for new YARN UI styling | Major | yarn-ui-v2 | Vasudevan Skm | Vasudevan Skm | +| [YARN-7469](https://issues.apache.org/jira/browse/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](https://issues.apache.org/jira/browse/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](https://issues.apache.org/jira/browse/YARN-7489) | ConcurrentModificationException in RMAppImpl#getRMAppMetrics | Major | capacityscheduler | Tao Yang | Tao Yang | +| [YARN-7525](https://issues.apache.org/jira/browse/YARN-7525) | Incorrect query parameters in cluster nodes REST API document | Minor | documentation | Tao Yang | Tao Yang | +| [HDFS-12813](https://issues.apache.org/jira/browse/HDFS-12813) | RequestHedgingProxyProvider can hide Exception thrown from the Namenode for proxy size of 1 | Major | ha | Mukul Kumar Singh | Mukul Kumar Singh | +| [HADOOP-15046](https://issues.apache.org/jira/browse/HADOOP-15046) | Document Apache Hadoop does not support Java 9 in BUILDING.txt | Major | documentation | Akira Ajisaka | Hanisha Koneru | +| [YARN-7513](https://issues.apache.org/jira/browse/YARN-7513) | Remove scheduler lock in FSAppAttempt.getWeight() | Minor | fairscheduler | Wilfred Spiegelenburg | Wilfred Spiegelenburg | +| [YARN-7390](https://issues.apache.org/jira/browse/YARN-7390) | All reservation related test cases failed when TestYarnClient runs against Fair Scheduler. | Major | fairscheduler, reservation system | Yufei Gu | Yufei Gu | +| [YARN-7290](https://issues.apache.org/jira/browse/YARN-7290) | Method canContainerBePreempted can return true when it shouldn't | Major | fairscheduler | Steven Rand | Steven Rand | +| [MAPREDUCE-7014](https://issues.apache.org/jira/browse/MAPREDUCE-7014) | Fix java doc errors in jdk1.8 | Major | . | Rohith Sharma K S | Steve Loughran | +| [YARN-7363](https://issues.apache.org/jira/browse/YARN-7363) | ContainerLocalizer doesn't have a valid log4j config when using LinuxContainerExecutor | Major | nodemanager | Yufei Gu | Yufei Gu | +| [HDFS-12754](https://issues.apache.org/jira/browse/HDFS-12754) | Lease renewal can hit a deadlock | Major | . | Kuhu Shukla | Kuhu Shukla | +| [YARN-7499](https://issues.apache.org/jira/browse/YARN-7499) | Layout changes to Application details page in new YARN UI | Major | yarn-ui-v2 | Vasudevan Skm | Vasudevan Skm | +| [HDFS-12857](https://issues.apache.org/jira/browse/HDFS-12857) | StoragePolicyAdmin should support schema based path | Major | namenode | Surendra Singh Lilhore | Surendra Singh Lilhore | +| [HDFS-12832](https://issues.apache.org/jira/browse/HDFS-12832) | INode.getFullPathName may throw ArrayIndexOutOfBoundsException lead to NameNode exit | Critical | namenode | DENG FEI | Konstantin Shvachko | +| [HADOOP-15054](https://issues.apache.org/jira/browse/HADOOP-15054) | upgrade hadoop dependency on commons-codec to 1.11 | Major | . | PJ Fanning | Bharat Viswanadham | +| [HDFS-11754](https://issues.apache.org/jira/browse/HDFS-11754) | Make FsServerDefaults cache configurable. | Minor | . | Rushabh S Shah | Mikhail Erofeev | +| [HADOOP-15042](https://issues.apache.org/jira/browse/HADOOP-15042) | Azure PageBlobInputStream.skip() can return negative value when numberOfPagesRemaining is 0 | Minor | fs/azure | Rajesh Balamohan | Rajesh Balamohan | +| [YARN-7509](https://issues.apache.org/jira/browse/YARN-7509) | AsyncScheduleThread and ResourceCommitterService are still running after RM is transitioned to standby | Critical | . | Tao Yang | Tao Yang | +| [HDFS-12681](https://issues.apache.org/jira/browse/HDFS-12681) | Make HdfsLocatedFileStatus a subtype of LocatedFileStatus | Major | . | Chris Douglas | Chris Douglas | +| [YARN-7558](https://issues.apache.org/jira/browse/YARN-7558) | "yarn logs" command fails to get logs for running containers if UI authentication is enabled. | Critical | . | Namit Maheshwari | Xuan Gong | +| [HDFS-12638](https://issues.apache.org/jira/browse/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-7546](https://issues.apache.org/jira/browse/YARN-7546) | Layout changes in Queue UI to show queue details on right pane | Major | yarn-ui-v2 | Vasudevan Skm | Vasudevan Skm | +| [HDFS-12836](https://issues.apache.org/jira/browse/HDFS-12836) | startTxId could be greater than endTxId when tailing in-progress edit log | Major | hdfs | Chao Sun | Chao Sun | +| [YARN-4813](https://issues.apache.org/jira/browse/YARN-4813) | TestRMWebServicesDelegationTokenAuthentication.testDoAs fails intermittently | Major | resourcemanager | Daniel Templeton | Gergo Repas | +| [MAPREDUCE-5124](https://issues.apache.org/jira/browse/MAPREDUCE-5124) | AM lacks flow control for task events | Major | mr-am | Jason Lowe | Peter Bacsko | +| [YARN-7589](https://issues.apache.org/jira/browse/YARN-7589) | TestPBImplRecords fails with NullPointerException | Major | . | Jason Lowe | Daniel Templeton | +| [YARN-7455](https://issues.apache.org/jira/browse/YARN-7455) | quote\_and\_append\_arg can overflow buffer | Major | nodemanager | Jason Lowe | Jim Brennan | +| [HADOOP-14600](https://issues.apache.org/jira/browse/HADOOP-14600) | LocatedFileStatus constructor forces RawLocalFS to exec a process to get the permissions | Major | fs | Steve Loughran | Ping Liu | +| [YARN-7594](https://issues.apache.org/jira/browse/YARN-7594) | TestNMWebServices#testGetNMResourceInfo fails on trunk | Major | nodemanager, webapp | Gergely Novák | Gergely Novák | +| [YARN-5594](https://issues.apache.org/jira/browse/YARN-5594) | Handle old RMDelegationToken format when recovering RM | Major | resourcemanager | Tatyana But | Robert Kanter | +| [HADOOP-15058](https://issues.apache.org/jira/browse/HADOOP-15058) | create-release site build outputs dummy shaded jars due to skipShade | Blocker | . | Andrew Wang | Andrew Wang | +| [HADOOP-14985](https://issues.apache.org/jira/browse/HADOOP-14985) | Remove subversion related code from VersionInfoMojo.java | Minor | build | Akira Ajisaka | Ajay Kumar | +| [YARN-7586](https://issues.apache.org/jira/browse/YARN-7586) | Application Placement should be done before ACL checks in ResourceManager | Blocker | . | Suma Shivaprasad | Suma Shivaprasad | +| [HDFS-11751](https://issues.apache.org/jira/browse/HDFS-11751) | DFSZKFailoverController daemon exits with wrong status code | Major | auto-failover | Doris Gu | Bharat Viswanadham | +| [HADOOP-15080](https://issues.apache.org/jira/browse/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 | Chris Douglas | SammiChen | +| [HADOOP-15098](https://issues.apache.org/jira/browse/HADOOP-15098) | TestClusterTopology#testChooseRandom fails intermittently | Major | test | Zsolt Venczel | Zsolt Venczel | +| [YARN-7608](https://issues.apache.org/jira/browse/YARN-7608) | Incorrect sTarget column causing DataTable warning on RM application and scheduler web page | Major | resourcemanager, webapp | Weiwei Yang | Gergely Novák | +| [HDFS-12891](https://issues.apache.org/jira/browse/HDFS-12891) | Do not invalidate blocks if toInvalidate is empty | Major | . | Zsolt Venczel | Zsolt Venczel | +| [YARN-7635](https://issues.apache.org/jira/browse/YARN-7635) | TestRMWebServicesSchedulerActivities fails in trunk | Major | test | Sunil G | Sunil G | +| [HDFS-12833](https://issues.apache.org/jira/browse/HDFS-12833) | Distcp : Update the usage of delete option for dependency with update and overwrite option | Minor | distcp, hdfs | Harshakiran Reddy | usharani | +| [YARN-7647](https://issues.apache.org/jira/browse/YARN-7647) | NM print inappropriate error log when node-labels is enabled | Minor | . | Yang Wang | Yang Wang | +| [YARN-7536](https://issues.apache.org/jira/browse/YARN-7536) | em-table improvement for better filtering in new YARN UI | Minor | yarn-ui-v2 | Vasudevan Skm | Vasudevan Skm | +| [HDFS-12907](https://issues.apache.org/jira/browse/HDFS-12907) | Allow read-only access to reserved raw for non-superusers | Major | namenode | Daryn Sharp | Rushabh S Shah | +| [HDFS-12881](https://issues.apache.org/jira/browse/HDFS-12881) | Output streams closed with IOUtils suppressing write errors | Major | . | Jason Lowe | Ajay Kumar | +| [YARN-7595](https://issues.apache.org/jira/browse/YARN-7595) | Container launching code suppresses close exceptions after writes | Major | nodemanager | Jason Lowe | Jim Brennan | +| [HADOOP-15085](https://issues.apache.org/jira/browse/HADOOP-15085) | Output streams closed with IOUtils suppressing write errors | Major | . | Jason Lowe | Jim Brennan | +| [YARN-7629](https://issues.apache.org/jira/browse/YARN-7629) | TestContainerLaunch# fails after YARN-7381 | Major | . | Jason Lowe | Jason Lowe | +| [YARN-7664](https://issues.apache.org/jira/browse/YARN-7664) | Several javadoc errors | Blocker | . | Sean Mackrory | Sean Mackrory | +| [HADOOP-15123](https://issues.apache.org/jira/browse/HADOOP-15123) | KDiag tries to load krb5.conf from KRB5CCNAME instead of KRB5\_CONFIG | Minor | security | Vipin Rathor | Vipin Rathor | +| [HADOOP-15109](https://issues.apache.org/jira/browse/HADOOP-15109) | TestDFSIO -read -random doesn't work on file sized 4GB | Minor | fs, test | zhoutai.zt | Ajay Kumar | +| [YARN-7661](https://issues.apache.org/jira/browse/YARN-7661) | NodeManager metrics return wrong value after update node resource | Major | . | Yang Wang | Yang Wang | +| [HDFS-12930](https://issues.apache.org/jira/browse/HDFS-12930) | Remove the extra space in HdfsImageViewer.md | Trivial | documentation | Yiqun Lin | Rahul Pathak | +| [YARN-7662](https://issues.apache.org/jira/browse/YARN-7662) | [Atsv2] Define new set of configurations for reader and collectors to bind. | Major | . | Rohith Sharma K S | Rohith Sharma K S | +| [YARN-7466](https://issues.apache.org/jira/browse/YARN-7466) | ResourceRequest has a different default for allocationRequestId than Container | Major | . | Chandni Singh | Chandni Singh | +| [YARN-7674](https://issues.apache.org/jira/browse/YARN-7674) | Update Timeline Reader web app address in UI2 | Major | . | Rohith Sharma K S | Sunil G | +| [YARN-7577](https://issues.apache.org/jira/browse/YARN-7577) | Unit Fail: TestAMRestart#testPreemptedAMRestartOnRMRestart | Major | . | Miklos Szegedi | Miklos Szegedi | +| [HDFS-12949](https://issues.apache.org/jira/browse/HDFS-12949) | Fix findbugs warning in ImageWriter.java | Major | . | Akira Ajisaka | Akira Ajisaka | +| [HDFS-12938](https://issues.apache.org/jira/browse/HDFS-12938) | TestErasureCodigCLI testAll failing consistently. | Major | erasure-coding, hdfs | Rushabh S Shah | Ajay Kumar | +| [HDFS-12951](https://issues.apache.org/jira/browse/HDFS-12951) | Incorrect javadoc in SaslDataTransferServer.java#receive | Major | encryption | Mukul Kumar Singh | Mukul Kumar Singh | +| [HDFS-12959](https://issues.apache.org/jira/browse/HDFS-12959) | Fix TestOpenFilesWithSnapshot redundant configurations | Minor | hdfs | Manoj Govindassamy | Manoj Govindassamy | +| [YARN-7542](https://issues.apache.org/jira/browse/YARN-7542) | Fix issue that causes some Running Opportunistic Containers to be recovered as PAUSED | Major | . | Arun Suresh | Sampada Dehankar | +| [HDFS-12915](https://issues.apache.org/jira/browse/HDFS-12915) | Fix findbugs warning in INodeFile$HeaderFormat.getBlockLayoutRedundancy | Major | namenode | Wei-Chiu Chuang | Chris Douglas | +| [YARN-7555](https://issues.apache.org/jira/browse/YARN-7555) | Support multiple resource types in YARN native services | Critical | yarn-native-services | Wangda Tan | Wangda Tan | +| [HADOOP-15122](https://issues.apache.org/jira/browse/HADOOP-15122) | Lock down version of doxia-module-markdown plugin | Blocker | . | Elek, Marton | Elek, Marton | +| [HADOOP-15143](https://issues.apache.org/jira/browse/HADOOP-15143) | NPE due to Invalid KerberosTicket in UGI | Major | . | Jitendra Nath Pandey | Mukul Kumar Singh | +| [HADOOP-15152](https://issues.apache.org/jira/browse/HADOOP-15152) | Typo in javadoc of ReconfigurableBase#reconfigurePropertyImpl | Trivial | common | Nanda kumar | Nanda kumar | +| [HADOOP-15155](https://issues.apache.org/jira/browse/HADOOP-15155) | Error in javadoc of ReconfigurableBase#reconfigureProperty | Minor | . | Ajay Kumar | Ajay Kumar | +| [YARN-7585](https://issues.apache.org/jira/browse/YARN-7585) | NodeManager should go unhealthy when state store throws DBException | Major | nodemanager | Wilfred Spiegelenburg | Wilfred Spiegelenburg | +| [YARN-6894](https://issues.apache.org/jira/browse/YARN-6894) | RM Apps API returns only active apps when query parameter queue used | Minor | resourcemanager, restapi | Grant Sohn | Gergely Novák | +| [YARN-7692](https://issues.apache.org/jira/browse/YARN-7692) | Skip validating priority acls while recovering applications | Blocker | resourcemanager | Charan Hebri | Sunil G | +| [MAPREDUCE-7028](https://issues.apache.org/jira/browse/MAPREDUCE-7028) | Concurrent task progress updates causing NPE in Application Master | Blocker | mr-am | Gergo Repas | Gergo Repas | +| [YARN-7602](https://issues.apache.org/jira/browse/YARN-7602) | NM should reference the singleton JvmMetrics instance | Major | nodemanager | Haibo Chen | Haibo Chen | +| [HADOOP-15093](https://issues.apache.org/jira/browse/HADOOP-15093) | Deprecation of yarn.resourcemanager.zk-address is undocumented | Major | documentation | Namit Maheshwari | Ajay Kumar | +| [HDFS-12931](https://issues.apache.org/jira/browse/HDFS-12931) | Handle InvalidEncryptionKeyException during DistributedFileSystem#getFileChecksum | Major | encryption | Mukul Kumar Singh | Mukul Kumar Singh | +| [HDFS-12948](https://issues.apache.org/jira/browse/HDFS-12948) | DiskBalancer report command top option should only take positive numeric values | Minor | diskbalancer | Namit Maheshwari | Shashikant Banerjee | +| [HDFS-12913](https://issues.apache.org/jira/browse/HDFS-12913) | TestDNFencingWithReplication.testFencingStress fix mini cluster not yet active issue | Major | . | Zsolt Venczel | Zsolt Venczel | +| [HDFS-12987](https://issues.apache.org/jira/browse/HDFS-12987) | Document - Disabling the Lazy persist file scrubber. | Trivial | documentation, hdfs | Karthik Palanisamy | Karthik Palanisamy | +| [HDFS-12860](https://issues.apache.org/jira/browse/HDFS-12860) | StripedBlockUtil#getRangesInternalBlocks throws exception for the block group size larger than 2GB | Major | erasure-coding | Lei (Eddy) Xu | Lei (Eddy) Xu | +| [YARN-7619](https://issues.apache.org/jira/browse/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-7645](https://issues.apache.org/jira/browse/YARN-7645) | TestContainerResourceUsage#testUsageAfterAMRestartWithMultipleContainers is flakey with FairScheduler | Major | test | Robert Kanter | Robert Kanter | +| [YARN-7699](https://issues.apache.org/jira/browse/YARN-7699) | queueUsagePercentage is coming as INF for getApp REST api call | Major | webapp | Sunil G | Sunil G | +| [HDFS-12985](https://issues.apache.org/jira/browse/HDFS-12985) | NameNode crashes during restart after an OpenForWrite file present in the Snapshot got deleted | Major | hdfs | Manoj Govindassamy | Manoj Govindassamy | +| [YARN-4227](https://issues.apache.org/jira/browse/YARN-4227) | Ignore expired containers from removed nodes in FairScheduler | Critical | fairscheduler | Wilfred Spiegelenburg | Wilfred Spiegelenburg | +| [YARN-7718](https://issues.apache.org/jira/browse/YARN-7718) | DistributedShell failed to specify resource other than memory/vcores from container\_resources | Critical | . | Wangda Tan | Wangda Tan | +| [YARN-7508](https://issues.apache.org/jira/browse/YARN-7508) | NPE in FiCaSchedulerApp when debug log enabled in async-scheduling mode | Major | capacityscheduler | Tao Yang | Tao Yang | +| [YARN-7663](https://issues.apache.org/jira/browse/YARN-7663) | RMAppImpl:Invalid event: START at KILLED | Minor | resourcemanager | lujie | lujie | +| [YARN-6948](https://issues.apache.org/jira/browse/YARN-6948) | Invalid event: ATTEMPT\_ADDED at FINAL\_SAVING | Minor | yarn | lujie | lujie | +| [HDFS-12994](https://issues.apache.org/jira/browse/HDFS-12994) | TestReconstructStripedFile.testNNSendsErasureCodingTasks fails due to socket timeout | Major | erasure-coding | Lei (Eddy) Xu | Lei (Eddy) Xu | +| [YARN-7665](https://issues.apache.org/jira/browse/YARN-7665) | Allow FS scheduler state dump to be turned on/off separately from FS debug log | Major | . | Wilfred Spiegelenburg | Wilfred Spiegelenburg | +| [YARN-7689](https://issues.apache.org/jira/browse/YARN-7689) | TestRMContainerAllocator fails after YARN-6124 | Major | scheduler | Wilfred Spiegelenburg | Wilfred Spiegelenburg | +| [HADOOP-15163](https://issues.apache.org/jira/browse/HADOOP-15163) | Fix S3ACommitter documentation | Minor | documentation, fs/s3 | Alessandro Andrioni | Alessandro Andrioni | +| [HADOOP-15060](https://issues.apache.org/jira/browse/HADOOP-15060) | TestShellBasedUnixGroupsMapping.testFiniteGroupResolutionTime flaky | Major | . | Miklos Szegedi | Miklos Szegedi | +| [YARN-7735](https://issues.apache.org/jira/browse/YARN-7735) | Fix typo in YARN documentation | Minor | documentation | Takanobu Asanuma | Takanobu Asanuma | +| [YARN-7727](https://issues.apache.org/jira/browse/YARN-7727) | Incorrect log levels in few logs with QueuePriorityContainerCandidateSelector | Minor | yarn | Prabhu Joseph | Prabhu Joseph | +| [HDFS-12984](https://issues.apache.org/jira/browse/HDFS-12984) | BlockPoolSlice can leak in a mini dfs cluster | Major | . | Robert Joseph Evans | Ajay Kumar | +| [HDFS-11915](https://issues.apache.org/jira/browse/HDFS-11915) | Sync rbw dir on the first hsync() to avoid file lost on power failure | Critical | . | Kanaka Kumar Avvaru | Vinayakumar B | +| [YARN-7731](https://issues.apache.org/jira/browse/YARN-7731) | RegistryDNS should handle upstream DNS returning CNAME | Major | . | Billie Rinaldi | Eric Yang | +| [YARN-7671](https://issues.apache.org/jira/browse/YARN-7671) | Improve Diagonstic message for stop yarn native service | Major | . | Yesha Vora | Chandni Singh | +| [YARN-7705](https://issues.apache.org/jira/browse/YARN-7705) | Create the container log directory with correct sticky bit in C code | Major | nodemanager | Yufei Gu | Yufei Gu | +| [HDFS-13016](https://issues.apache.org/jira/browse/HDFS-13016) | globStatus javadoc refers to glob pattern as "regular expression" | Trivial | documentation, hdfs | Ryanne Dolan | Mukul Kumar Singh | +| [HADOOP-15172](https://issues.apache.org/jira/browse/HADOOP-15172) | Fix the javadoc warning in WriteOperationHelper.java | Minor | documentation, fs/s3 | Mukul Kumar Singh | Mukul Kumar Singh | +| [YARN-7479](https://issues.apache.org/jira/browse/YARN-7479) | TestContainerManagerSecurity.testContainerManager[Simple] flaky in trunk | Major | test | Botong Huang | Akira Ajisaka | +| [HDFS-13004](https://issues.apache.org/jira/browse/HDFS-13004) | TestLeaseRecoveryStriped#testLeaseRecovery is failing when safeLength is 0MB or larger than the test file | Major | hdfs | Zsolt Venczel | Zsolt Venczel | +| [HDFS-9049](https://issues.apache.org/jira/browse/HDFS-9049) | Make Datanode Netty reverse proxy port to be configurable | Major | datanode | Vinayakumar B | Vinayakumar B | +| [YARN-7758](https://issues.apache.org/jira/browse/YARN-7758) | Add an additional check to the validity of container and application ids passed to container-executor | Major | nodemanager | Miklos Szegedi | Yufei Gu | +| [YARN-7717](https://issues.apache.org/jira/browse/YARN-7717) | Add configuration consistency for module.enabled and docker.privileged-containers.enabled | Major | . | Yesha Vora | Eric Badger | +| [HADOOP-15150](https://issues.apache.org/jira/browse/HADOOP-15150) | in FsShell, UGI params should be overidden through env vars(-D arg) | Major | . | Brahma Reddy Battula | Brahma Reddy Battula | +| [YARN-7750](https://issues.apache.org/jira/browse/YARN-7750) | [UI2] Render time related fields in all pages to the browser timezone | Major | yarn-ui-v2 | Vasudevan Skm | Vasudevan Skm | +| [YARN-7740](https://issues.apache.org/jira/browse/YARN-7740) | Fix logging for destroy yarn service cli when app does not exist and some minor bugs | Major | yarn-native-services | Yesha Vora | Jian He | +| [YARN-7139](https://issues.apache.org/jira/browse/YARN-7139) | FairScheduler: finished applications are always restored to default queue | Major | fairscheduler | Wilfred Spiegelenburg | Wilfred Spiegelenburg | +| [YARN-7753](https://issues.apache.org/jira/browse/YARN-7753) | [UI2] Application logs has to be pulled from ATS 1.5 instead of ATS2 | Major | yarn-ui-v2 | Sunil G | Sunil G | +| [HADOOP-14788](https://issues.apache.org/jira/browse/HADOOP-14788) | Credentials readTokenStorageFile to stop wrapping IOEs in IOEs | Minor | security | Steve Loughran | Ajay Kumar | +| [HDFS-13039](https://issues.apache.org/jira/browse/HDFS-13039) | StripedBlockReader#createBlockReader leaks socket on IOException | Critical | datanode, erasure-coding | Lei (Eddy) Xu | Lei (Eddy) Xu | +| [HADOOP-15181](https://issues.apache.org/jira/browse/HADOOP-15181) | Typo in SecureMode.md | Trivial | documentation | Masahiro Tanaka | Masahiro Tanaka | +| [YARN-7738](https://issues.apache.org/jira/browse/YARN-7738) | CapacityScheduler: Support refresh maximum allocation for multiple resource types | Blocker | . | Sumana Sathish | Wangda Tan | +| [YARN-7766](https://issues.apache.org/jira/browse/YARN-7766) | Introduce a new config property for YARN Service dependency tarball location | Major | applications, client, yarn-native-services | Gour Saha | Gour Saha | +| [HDFS-12963](https://issues.apache.org/jira/browse/HDFS-12963) | Error log level in ShortCircuitRegistry#removeShm | Minor | . | hu xiaodong | hu xiaodong | +| [YARN-7796](https://issues.apache.org/jira/browse/YARN-7796) | Container-executor fails with segfault on certain OS configurations | Major | nodemanager | Gergo Repas | Gergo Repas | +| [YARN-7749](https://issues.apache.org/jira/browse/YARN-7749) | [UI2] GPU information tab in left hand side disappears when we click other tabs below | Major | . | Sumana Sathish | Vasudevan Skm | +| [YARN-7806](https://issues.apache.org/jira/browse/YARN-7806) | Distributed Shell should use timeline async api's | Major | distributed-shell | Sumana Sathish | Rohith Sharma K S | +| [HDFS-13023](https://issues.apache.org/jira/browse/HDFS-13023) | Journal Sync does not work on a secure cluster | Major | journal-node | Namit Maheshwari | Bharat Viswanadham | +| [MAPREDUCE-7015](https://issues.apache.org/jira/browse/MAPREDUCE-7015) | Possible race condition in JHS if the job is not loaded | Major | jobhistoryserver | Peter Bacsko | Peter Bacsko | +| [YARN-7737](https://issues.apache.org/jira/browse/YARN-7737) | prelaunch.err file not found exception on container failure | Major | . | Jonathan Hung | Keqiu Hu | +| [YARN-7777](https://issues.apache.org/jira/browse/YARN-7777) | Fix user name format in YARN Registry DNS name | Major | . | Jian He | Jian He | +| [YARN-7628](https://issues.apache.org/jira/browse/YARN-7628) | [Documentation] Documenting the ability to disable elasticity at leaf queue | Major | capacity scheduler | Zian Chen | Zian Chen | +| [HDFS-13063](https://issues.apache.org/jira/browse/HDFS-13063) | Fix the incorrect spelling in HDFSHighAvailabilityWithQJM.md | Trivial | documentation | Jianfei Jiang | Jianfei Jiang | +| [YARN-7102](https://issues.apache.org/jira/browse/YARN-7102) | NM heartbeat stuck when responseId overflows MAX\_INT | Critical | . | Botong Huang | Botong Huang | +| [MAPREDUCE-7041](https://issues.apache.org/jira/browse/MAPREDUCE-7041) | MR should not try to clean up at first job attempt | Major | . | Takanobu Asanuma | Gergo Repas | +| [YARN-7742](https://issues.apache.org/jira/browse/YARN-7742) | [UI2] Duplicated containers are rendered per attempt | Major | . | Rohith Sharma K S | Vasudevan Skm | +| [YARN-7760](https://issues.apache.org/jira/browse/YARN-7760) | [UI2] Clicking 'Master Node' or link next to 'AM Node Web UI' under application's appAttempt page goes to OLD RM UI | Major | . | Sumana Sathish | Vasudevan Skm | +| [MAPREDUCE-7020](https://issues.apache.org/jira/browse/MAPREDUCE-7020) | Task timeout in uber mode can crash AM | Major | mr-am | Akira Ajisaka | Peter Bacsko | +| [YARN-7765](https://issues.apache.org/jira/browse/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-13065](https://issues.apache.org/jira/browse/HDFS-13065) | TestErasureCodingMultipleRacks#testSkewedRack3 is failing | Major | hdfs | Gabor Bota | Gabor Bota | +| [HDFS-12974](https://issues.apache.org/jira/browse/HDFS-12974) | Exception message is not printed when creating an encryption zone fails with AuthorizationException | Minor | encryption | fang zhenyi | fang zhenyi | +| [YARN-7698](https://issues.apache.org/jira/browse/YARN-7698) | A misleading variable's name in ApplicationAttemptEventDispatcher | Minor | resourcemanager | Jinjiang Ling | Jinjiang Ling | +| [YARN-7790](https://issues.apache.org/jira/browse/YARN-7790) | Improve Capacity Scheduler Async Scheduling to better handle node failures | Critical | . | Sumana Sathish | Wangda Tan | +| [MAPREDUCE-7036](https://issues.apache.org/jira/browse/MAPREDUCE-7036) | ASF License warning in hadoop-mapreduce-client | Minor | test | Takanobu Asanuma | Takanobu Asanuma | +| [HDFS-12528](https://issues.apache.org/jira/browse/HDFS-12528) | Add an option to not disable short-circuit reads on failures | Major | hdfs-client, performance | Andre Araujo | Xiao Chen | +| [YARN-7861](https://issues.apache.org/jira/browse/YARN-7861) | [UI2] Logs page shows duplicated containers with ATS | Major | yarn-ui-v2 | Sunil G | Sunil G | +| [YARN-7828](https://issues.apache.org/jira/browse/YARN-7828) | Clicking on yarn service should take to component tab | Major | yarn-ui-v2 | Yesha Vora | Sunil G | +| [HDFS-13061](https://issues.apache.org/jira/browse/HDFS-13061) | SaslDataTransferClient#checkTrustAndSend should not trust a partially trusted channel | Major | . | Xiaoyu Yao | Ajay Kumar | +| [HDFS-13060](https://issues.apache.org/jira/browse/HDFS-13060) | Adding a BlacklistBasedTrustedChannelResolver for TrustedChannelResolver | Major | datanode, security | Xiaoyu Yao | Ajay Kumar | +| [HDFS-12897](https://issues.apache.org/jira/browse/HDFS-12897) | getErasureCodingPolicy should handle .snapshot dir better | Major | erasure-coding, hdfs, snapshots | Harshakiran Reddy | LiXin Ge | +| [MAPREDUCE-7033](https://issues.apache.org/jira/browse/MAPREDUCE-7033) | Map outputs implicitly rely on permissive umask for shuffle | Critical | mrv2 | Jason Lowe | Jason Lowe | +| [HDFS-13048](https://issues.apache.org/jira/browse/HDFS-13048) | LowRedundancyReplicatedBlocks metric can be negative | Major | metrics | Akira Ajisaka | Akira Ajisaka | +| [HADOOP-15198](https://issues.apache.org/jira/browse/HADOOP-15198) | Correct the spelling in CopyFilter.java | Major | tools/distcp | Mukul Kumar Singh | Mukul Kumar Singh | +| [YARN-7831](https://issues.apache.org/jira/browse/YARN-7831) | YARN Service CLI should use hadoop.http.authentication.type to determine authentication method | Major | . | Eric Yang | Eric Yang | +| [YARN-7879](https://issues.apache.org/jira/browse/YARN-7879) | NM user is unable to access the application filecache due to permissions | Critical | . | Shane Kumpf | Jason Lowe | +| [HDFS-13100](https://issues.apache.org/jira/browse/HDFS-13100) | Handle IllegalArgumentException when GETSERVERDEFAULTS is not implemented in webhdfs. | Critical | hdfs, webhdfs | Yongjun Zhang | Yongjun Zhang | +| [YARN-7876](https://issues.apache.org/jira/browse/YARN-7876) | Localized jars that are expanded after localization are not fully copied | Blocker | . | Miklos Szegedi | Miklos Szegedi | +| [YARN-7849](https://issues.apache.org/jira/browse/YARN-7849) | TestMiniYarnClusterNodeUtilization#testUpdateNodeUtilization fails due to heartbeat sync error | Major | test | Jason Lowe | Botong Huang | +| [YARN-7801](https://issues.apache.org/jira/browse/YARN-7801) | AmFilterInitializer should addFilter after fill all parameters | Critical | . | Sumana Sathish | Wangda Tan | +| [YARN-7889](https://issues.apache.org/jira/browse/YARN-7889) | Missing kerberos token when check for RM REST API availability | Major | yarn-native-services | Eric Yang | Eric Yang | +| [YARN-7850](https://issues.apache.org/jira/browse/YARN-7850) | [UI2] Log Aggregation status to be displayed in Application Page | Major | yarn-ui-v2 | Yesha Vora | Gergely Novák | +| [YARN-7866](https://issues.apache.org/jira/browse/YARN-7866) | [UI2] Error to be displayed correctly while accessing kerberized cluster without kinit | Major | yarn-ui-v2 | Sumana Sathish | Sunil G | +| [YARN-7890](https://issues.apache.org/jira/browse/YARN-7890) | NPE during container relaunch | Major | . | Billie Rinaldi | Jason Lowe | +| [HDFS-11701](https://issues.apache.org/jira/browse/HDFS-11701) | NPE from Unresolved Host causes permanent DFSInputStream failures | Major | hdfs-client | James Moore | Lokesh Jain | +| [HDFS-13115](https://issues.apache.org/jira/browse/HDFS-13115) | In getNumUnderConstructionBlocks(), ignore the inodeIds for which the inodes have been deleted | Major | . | Yongjun Zhang | Yongjun Zhang | +| [HDFS-12935](https://issues.apache.org/jira/browse/HDFS-12935) | Get ambiguous result for DFSAdmin command in HA mode when only one namenode is up | Major | tools | Jianfei Jiang | Jianfei Jiang | +| [YARN-7827](https://issues.apache.org/jira/browse/YARN-7827) | Stop and Delete Yarn Service from RM UI fails with HTTP ERROR 404 | Critical | yarn-ui-v2 | Yesha Vora | Sunil G | +| [HDFS-13120](https://issues.apache.org/jira/browse/HDFS-13120) | Snapshot diff could be corrupted after concat | Major | namenode, snapshots | Xiaoyu Yao | Xiaoyu Yao | +| [YARN-7909](https://issues.apache.org/jira/browse/YARN-7909) | YARN service REST API returns charset=null when kerberos enabled | Major | yarn-native-services | Eric Yang | Eric Yang | +| [HDFS-13130](https://issues.apache.org/jira/browse/HDFS-13130) | Log object instance get incorrectly in SlowDiskTracker | Minor | . | Jianfei Jiang | Jianfei Jiang | +| [YARN-7906](https://issues.apache.org/jira/browse/YARN-7906) | Fix mvn site fails with error: Multiple sources of package comments found for package "o.a.h.y.client.api.impl" | Blocker | build, documentation | Akira Ajisaka | Akira Ajisaka | +| [YARN-5848](https://issues.apache.org/jira/browse/YARN-5848) | Remove unnecessary public/crossdomain.xml from YARN UIv2 sub project | Blocker | yarn-ui-v2 | Allen Wittenauer | Sunil G | +| [YARN-7697](https://issues.apache.org/jira/browse/YARN-7697) | NM goes down with OOM due to leak in log-aggregation | Blocker | . | Santhosh B Gowda | Xuan Gong | +| [YARN-7739](https://issues.apache.org/jira/browse/YARN-7739) | DefaultAMSProcessor should properly check customized resource types against minimum/maximum allocation | Blocker | . | Wangda Tan | Wangda Tan | +| [HDFS-10453](https://issues.apache.org/jira/browse/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 | He Xiaoqiao | He Xiaoqiao | +| [HDFS-8693](https://issues.apache.org/jira/browse/HDFS-8693) | refreshNamenodes does not support adding a new standby to a running DN | Critical | datanode, ha | Jian Fang | Ajith S | +| [MAPREDUCE-7052](https://issues.apache.org/jira/browse/MAPREDUCE-7052) | TestFixedLengthInputFormat#testFormatCompressedIn is flaky | Major | client, test | Peter Bacsko | Peter Bacsko | +| [HDFS-13112](https://issues.apache.org/jira/browse/HDFS-13112) | Token expiration edits may cause log corruption or deadlock | Critical | namenode | Daryn Sharp | Daryn Sharp | +| [HDFS-13151](https://issues.apache.org/jira/browse/HDFS-13151) | Fix the javadoc error in ReplicaInfo | Minor | . | Bharat Viswanadham | Bharat Viswanadham | +| [MAPREDUCE-7053](https://issues.apache.org/jira/browse/MAPREDUCE-7053) | Timed out tasks can fail to produce thread dump | Major | . | Jason Lowe | Jason Lowe | +| [HDFS-13058](https://issues.apache.org/jira/browse/HDFS-13058) | Fix dfs.namenode.shared.edits.dir in TestJournalNode | Major | journal-node, test | Bharat Viswanadham | Bharat Viswanadham | +| [HADOOP-15206](https://issues.apache.org/jira/browse/HADOOP-15206) | BZip2 drops and duplicates records when input split size is small | Major | . | Aki Tanaka | Aki Tanaka | +| [YARN-7937](https://issues.apache.org/jira/browse/YARN-7937) | Fix http method name in Cluster Application Timeout Update API example request | Minor | docs, documentation | Charan Hebri | Charan Hebri | +| [HADOOP-15223](https://issues.apache.org/jira/browse/HADOOP-15223) | Replace Collections.EMPTY\* with empty\* when available | Minor | . | Akira Ajisaka | fang zhenyi | +| [HDFS-13159](https://issues.apache.org/jira/browse/HDFS-13159) | TestTruncateQuotaUpdate fails in trunk | Major | test | Arpit Agarwal | Nanda kumar | +| [YARN-7947](https://issues.apache.org/jira/browse/YARN-7947) | Capacity Scheduler intra-queue preemption can NPE for non-schedulable apps | Major | capacity scheduler, scheduler preemption | Eric Payne | Eric Payne | +| [HADOOP-10571](https://issues.apache.org/jira/browse/HADOOP-10571) | Use Log.\*(Object, Throwable) overload to log exceptions | Major | . | Arpit Agarwal | Andras Bokor | +| [HADOOP-6852](https://issues.apache.org/jira/browse/HADOOP-6852) | apparent bug in concatenated-bzip2 support (decoding) | Major | io | Greg Roelofs | Zsolt Venczel | +| [YARN-7942](https://issues.apache.org/jira/browse/YARN-7942) | Yarn ServiceClient does not not delete znode from secure ZooKeeper | Blocker | yarn-native-services | Eric Yang | Billie Rinaldi | +| [HADOOP-15236](https://issues.apache.org/jira/browse/HADOOP-15236) | Fix typo in RequestHedgingProx
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