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@@ -0,0 +1,274 @@
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+
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+<!---
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+# Licensed to the Apache Software Foundation (ASF) under one
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+# or more contributor license agreements. See the NOTICE file
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+# distributed with this work for additional information
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+# regarding copyright ownership. The ASF licenses this file
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+# to you under the Apache License, Version 2.0 (the
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+# "License"); you may not use this file except in compliance
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+# with the License. You may obtain a copy of the License at
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+#
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+# http://www.apache.org/licenses/LICENSE-2.0
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+#
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+# Unless required by applicable law or agreed to in writing, software
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+# distributed under the License is distributed on an "AS IS" BASIS,
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+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+# See the License for the specific language governing permissions and
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+# limitations under the License.
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+-->
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+# "Apache Hadoop" Changelog
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+
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+## Release 2.9.2 - 2018-11-19
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+
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+### INCOMPATIBLE CHANGES:
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+
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+| JIRA | Summary | Priority | Component | Reporter | Contributor |
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+|:---- |:---- | :--- |:---- |:---- |:---- |
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+
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+
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+### IMPORTANT ISSUES:
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+
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+| JIRA | Summary | Priority | Component | Reporter | Contributor |
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+|:---- |:---- | :--- |:---- |:---- |:---- |
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+
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+
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+### NEW FEATURES:
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+
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+| JIRA | Summary | Priority | Component | Reporter | Contributor |
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+|:---- |:---- | :--- |:---- |:---- |:---- |
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+| [HDFS-13283](https://issues.apache.org/jira/browse/HDFS-13283) | Percentage based Reserved Space Calculation for DataNode | Major | datanode, hdfs | Lukas Majercak | Lukas Majercak |
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+
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+
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+### IMPROVEMENTS:
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+
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+| JIRA | Summary | Priority | Component | Reporter | Contributor |
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+|:---- |:---- | :--- |:---- |:---- |:---- |
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+| [HADOOP-14987](https://issues.apache.org/jira/browse/HADOOP-14987) | Improve KMSClientProvider log around delegation token checking | Major | . | Xiaoyu Yao | Xiaoyu Yao |
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+| [YARN-7274](https://issues.apache.org/jira/browse/YARN-7274) | Ability to disable elasticity at leaf queue level | Major | capacityscheduler | Scott Brokaw | Zian Chen |
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+| [HADOOP-15394](https://issues.apache.org/jira/browse/HADOOP-15394) | Backport PowerShell NodeFencer HADOOP-14309 to branch-2 | Minor | . | Íñigo Goiri | Íñigo Goiri |
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+| [HDFS-13462](https://issues.apache.org/jira/browse/HDFS-13462) | Add BIND\_HOST configuration for JournalNode's HTTP and RPC Servers | Major | hdfs, journal-node | Lukas Majercak | Lukas Majercak |
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+| [HADOOP-14841](https://issues.apache.org/jira/browse/HADOOP-14841) | Kms client should disconnect if unable to get output stream from connection. | Major | kms | Xiao Chen | Rushabh S Shah |
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+| [HDFS-13272](https://issues.apache.org/jira/browse/HDFS-13272) | DataNodeHttpServer to have configurable HttpServer2 threads | Major | datanode | Erik Krogen | Erik Krogen |
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+| [HADOOP-15441](https://issues.apache.org/jira/browse/HADOOP-15441) | Log kms url and token service at debug level. | Minor | . | Wei-Chiu Chuang | Gabor Bota |
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+| [HADOOP-15486](https://issues.apache.org/jira/browse/HADOOP-15486) | Make NetworkTopology#netLock fair | Major | net | Nanda kumar | Nanda kumar |
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+| [HADOOP-15449](https://issues.apache.org/jira/browse/HADOOP-15449) | Increase default timeout of ZK session to avoid frequent NameNode failover | Critical | common | Karthik Palanisamy | Karthik Palanisamy |
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+| [HDFS-13602](https://issues.apache.org/jira/browse/HDFS-13602) | Add checkOperation(WRITE) checks in FSNamesystem | Major | ha, namenode | Erik Krogen | Chao Sun |
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+| [HDFS-13653](https://issues.apache.org/jira/browse/HDFS-13653) | Make dfs.client.failover.random.order a per nameservice configuration | Major | federation | Ekanth Sethuramalingam | Ekanth Sethuramalingam |
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+| [HDFS-13686](https://issues.apache.org/jira/browse/HDFS-13686) | Add overall metrics for FSNamesystemLock | Major | hdfs, namenode | Lukas Majercak | Lukas Majercak |
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+| [HDFS-13714](https://issues.apache.org/jira/browse/HDFS-13714) | Fix TestNameNodePrunesMissingStorages test failures on Windows | Major | hdfs, namenode, test | Lukas Majercak | Lukas Majercak |
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+| [HDFS-13719](https://issues.apache.org/jira/browse/HDFS-13719) | Docs around dfs.image.transfer.timeout are misleading | Major | documentation | Kitti Nanasi | Kitti Nanasi |
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+| [HDFS-11060](https://issues.apache.org/jira/browse/HDFS-11060) | make DEFAULT\_MAX\_CORRUPT\_FILEBLOCKS\_RETURNED configurable | Minor | hdfs | Lantao Jin | Lantao Jin |
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+| [HDFS-13813](https://issues.apache.org/jira/browse/HDFS-13813) | Exit NameNode if dangling child inode is detected when saving FsImage | Major | hdfs, namenode | Siyao Meng | Siyao Meng |
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+| [HDFS-13821](https://issues.apache.org/jira/browse/HDFS-13821) | RBF: Add dfs.federation.router.mount-table.cache.enable so that users can disable cache | Major | hdfs | Fei Hui | Fei Hui |
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+| [HADOOP-15689](https://issues.apache.org/jira/browse/HADOOP-15689) | Add "\*.patch" into .gitignore file of branch-2 | Major | . | Rui Gao | Rui Gao |
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+| [HDFS-13854](https://issues.apache.org/jira/browse/HDFS-13854) | RBF: The ProcessingAvgTime and ProxyAvgTime should display by JMX with ms unit. | Major | federation, hdfs | yanghuafeng | yanghuafeng |
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+| [YARN-8051](https://issues.apache.org/jira/browse/YARN-8051) | TestRMEmbeddedElector#testCallbackSynchronization is flakey | Major | test | Robert Kanter | Robert Kanter |
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+| [HDFS-13857](https://issues.apache.org/jira/browse/HDFS-13857) | RBF: Choose to enable the default nameservice to read/write files | Major | federation, hdfs | yanghuafeng | yanghuafeng |
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+| [HDFS-13812](https://issues.apache.org/jira/browse/HDFS-13812) | Fix the inconsistent default refresh interval on Caching documentation | Trivial | documentation | BELUGA BEHR | Hrishikesh Gadre |
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+| [HDFS-13902](https://issues.apache.org/jira/browse/HDFS-13902) | Add JMX, conf and stacks menus to the datanode page | Minor | datanode | fengchuang | fengchuang |
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+
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+
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+### BUG FIXES:
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+
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+| JIRA | Summary | Priority | Component | Reporter | Contributor |
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+|:---- |:---- | :--- |:---- |:---- |:---- |
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+| [HADOOP-15121](https://issues.apache.org/jira/browse/HADOOP-15121) | Encounter NullPointerException when using DecayRpcScheduler | Major | . | Tao Jie | Tao Jie |
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+| [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 |
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+| [MAPREDUCE-7027](https://issues.apache.org/jira/browse/MAPREDUCE-7027) | HadoopArchiveLogs shouldn't delete the original logs if the HAR creation fails | Critical | harchive | Gergely Novák | Gergely Novák |
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+| [HDFS-10803](https://issues.apache.org/jira/browse/HDFS-10803) | TestBalancerWithMultipleNameNodes#testBalancing2OutOf3Blockpools fails intermittently due to no free space available | Major | . | Yiqun Lin | Yiqun Lin |
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+| [YARN-8068](https://issues.apache.org/jira/browse/YARN-8068) | Application Priority field causes NPE in app timeline publish when Hadoop 2.7 based clients to 2.8+ | Blocker | yarn | Sunil Govindan | Sunil Govindan |
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+| [HADOOP-15317](https://issues.apache.org/jira/browse/HADOOP-15317) | Improve NetworkTopology chooseRandom's loop | Major | . | Xiao Chen | Xiao Chen |
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+| [HADOOP-15375](https://issues.apache.org/jira/browse/HADOOP-15375) | Branch-2 pre-commit failed to build docker image | Major | . | Xiao Chen | Xiao Chen |
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+| [HADOOP-15357](https://issues.apache.org/jira/browse/HADOOP-15357) | Configuration.getPropsWithPrefix no longer does variable substitution | Major | . | Jim Brennan | Jim Brennan |
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+| [HDFS-7101](https://issues.apache.org/jira/browse/HDFS-7101) | Potential null dereference in DFSck#doWork() | Minor | . | Ted Yu | skrho |
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+| [YARN-8120](https://issues.apache.org/jira/browse/YARN-8120) | JVM can crash with SIGSEGV when exiting due to custom leveldb logger | Major | nodemanager, resourcemanager | Jason Lowe | Jason Lowe |
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+| [YARN-8147](https://issues.apache.org/jira/browse/YARN-8147) | TestClientRMService#testGetApplications sporadically fails | Major | test | Jason Lowe | Jason Lowe |
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+| [HADOOP-14970](https://issues.apache.org/jira/browse/HADOOP-14970) | MiniHadoopClusterManager doesn't respect lack of format option | Minor | . | Erik Krogen | Erik Krogen |
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+| [HDFS-12828](https://issues.apache.org/jira/browse/HDFS-12828) | OIV ReverseXML Processor fails with escaped characters | Critical | hdfs | Erik Krogen | Erik Krogen |
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+| [HADOOP-15180](https://issues.apache.org/jira/browse/HADOOP-15180) | branch-2 : daemon processes' sysout overwrites 'ulimit -a' in daemon's out file | Minor | scripts | Ranith Sardar | Ranith Sardar |
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+| [HADOOP-15396](https://issues.apache.org/jira/browse/HADOOP-15396) | Some java source files are executable | Minor | . | Akira Ajisaka | Shashikant Banerjee |
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+| [YARN-7786](https://issues.apache.org/jira/browse/YARN-7786) | NullPointerException while launching ApplicationMaster | Major | . | lujie | lujie |
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+| [HDFS-10183](https://issues.apache.org/jira/browse/HDFS-10183) | Prevent race condition during class initialization | Minor | fs | Pavel Avgustinov | Pavel Avgustinov |
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+| [HDFS-13408](https://issues.apache.org/jira/browse/HDFS-13408) | MiniDFSCluster to support being built on randomized base directory | Major | test | Xiao Liang | Xiao Liang |
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+| [HADOOP-15390](https://issues.apache.org/jira/browse/HADOOP-15390) | Yarn RM logs flooded by DelegationTokenRenewer trying to renew KMS tokens | Critical | . | Xiao Chen | Xiao Chen |
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+| [HDFS-13336](https://issues.apache.org/jira/browse/HDFS-13336) | Test cases of TestWriteToReplica failed in windows | Major | . | Xiao Liang | Xiao Liang |
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+| [HADOOP-15385](https://issues.apache.org/jira/browse/HADOOP-15385) | Many tests are failing in hadoop-distcp project in branch-2 | Critical | tools/distcp | Rushabh S Shah | Jason Lowe |
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+| [HDFS-13509](https://issues.apache.org/jira/browse/HDFS-13509) | Bug fix for breakHardlinks() of ReplicaInfo/LocalReplica, and fix TestFileAppend failures on Windows | Major | . | Xiao Liang | Xiao Liang |
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+| [MAPREDUCE-7073](https://issues.apache.org/jira/browse/MAPREDUCE-7073) | Optimize TokenCache#obtainTokensForNamenodesInternal | Major | . | Bibin A Chundatt | Bibin A Chundatt |
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+| [YARN-8232](https://issues.apache.org/jira/browse/YARN-8232) | RMContainer lost queue name when RM HA happens | Major | resourcemanager | Hu Ziqian | Hu Ziqian |
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+| [HDFS-13537](https://issues.apache.org/jira/browse/HDFS-13537) | TestHdfsHelper does not generate jceks path properly for relative path in Windows | Major | . | Xiao Liang | Xiao Liang |
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+| [HADOOP-15446](https://issues.apache.org/jira/browse/HADOOP-15446) | WASB: PageBlobInputStream.skip breaks HBASE replication | Major | fs/azure | Thomas Marquardt | Thomas Marquardt |
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+| [YARN-7003](https://issues.apache.org/jira/browse/YARN-7003) | DRAINING state of queues is not recovered after RM restart | Major | capacityscheduler | Tao Yang | Tao Yang |
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+| [YARN-8244](https://issues.apache.org/jira/browse/YARN-8244) | TestContainerSchedulerQueuing.testStartMultipleContainers failed | Major | . | Miklos Szegedi | Jim Brennan |
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+| [HDFS-13581](https://issues.apache.org/jira/browse/HDFS-13581) | DN UI logs link is broken when https is enabled | Minor | datanode | Namit Maheshwari | Shashikant Banerjee |
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+| [HDFS-13586](https://issues.apache.org/jira/browse/HDFS-13586) | Fsync fails on directories on Windows | Critical | datanode, hdfs | Lukas Majercak | Lukas Majercak |
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+| [HDFS-13590](https://issues.apache.org/jira/browse/HDFS-13590) | Backport HDFS-12378 to branch-2 | Major | datanode, hdfs, test | Lukas Majercak | Lukas Majercak |
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+| [HADOOP-15450](https://issues.apache.org/jira/browse/HADOOP-15450) | Avoid fsync storm triggered by DiskChecker and handle disk full situation | Blocker | . | Kihwal Lee | Arpit Agarwal |
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+| [HDFS-13588](https://issues.apache.org/jira/browse/HDFS-13588) | Fix TestFsDatasetImpl test failures on Windows | Major | . | Xiao Liang | Xiao Liang |
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+| [YARN-8344](https://issues.apache.org/jira/browse/YARN-8344) | Missing nm.stop() in TestNodeManagerResync to fix testKillContainersOnResync | Major | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola |
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+| [YARN-8327](https://issues.apache.org/jira/browse/YARN-8327) | Fix TestAggregatedLogFormat#testReadAcontainerLogs1 on Windows | Major | log-aggregation | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola |
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+| [YARN-8346](https://issues.apache.org/jira/browse/YARN-8346) | Upgrading to 3.1 kills running containers with error "Opportunistic container queue is full" | Blocker | . | Rohith Sharma K S | Jason Lowe |
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+| [HDFS-13618](https://issues.apache.org/jira/browse/HDFS-13618) | Fix TestDataNodeFaultInjector test failures on Windows | Major | test | Xiao Liang | Xiao Liang |
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+| [HADOOP-15473](https://issues.apache.org/jira/browse/HADOOP-15473) | Configure serialFilter in KeyProvider to avoid UnrecoverableKeyException caused by JDK-8189997 | Critical | kms | Gabor Bota | Gabor Bota |
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+| [MAPREDUCE-7103](https://issues.apache.org/jira/browse/MAPREDUCE-7103) | Fix TestHistoryViewerPrinter on windows due to a mismatch line separator | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola |
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+| [YARN-8359](https://issues.apache.org/jira/browse/YARN-8359) | Exclude containermanager.linux test classes on Windows | Major | . | Giovanni Matteo Fumarola | Jason Lowe |
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+| [HDFS-13664](https://issues.apache.org/jira/browse/HDFS-13664) | Refactor ConfiguredFailoverProxyProvider to make inheritance easier | Minor | hdfs-client | Chao Sun | Chao Sun |
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+| [HDFS-13667](https://issues.apache.org/jira/browse/HDFS-13667) | Typo: Marking all "datandoes" as stale | Trivial | namenode | Wei-Chiu Chuang | Nanda kumar |
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+| [YARN-8405](https://issues.apache.org/jira/browse/YARN-8405) | RM zk-state-store.parent-path ACLs has been changed since HADOOP-14773 | Major | . | Rohith Sharma K S | Íñigo Goiri |
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+| [MAPREDUCE-7108](https://issues.apache.org/jira/browse/MAPREDUCE-7108) | TestFileOutputCommitter fails on Windows | Minor | test | Zuoming Zhang | Zuoming Zhang |
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+| [YARN-8404](https://issues.apache.org/jira/browse/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 |
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+| [HDFS-13675](https://issues.apache.org/jira/browse/HDFS-13675) | Speed up TestDFSAdminWithHA | Major | hdfs, namenode | Lukas Majercak | Lukas Majercak |
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+| [HDFS-13673](https://issues.apache.org/jira/browse/HDFS-13673) | TestNameNodeMetrics fails on Windows | Minor | test | Zuoming Zhang | Zuoming Zhang |
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+| [HDFS-13676](https://issues.apache.org/jira/browse/HDFS-13676) | TestEditLogRace fails on Windows | Minor | test | Zuoming Zhang | Zuoming Zhang |
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+| [HADOOP-15523](https://issues.apache.org/jira/browse/HADOOP-15523) | Shell command timeout given is in seconds whereas it is taken as millisec while scheduling | Major | . | Bilwa S T | Bilwa S T |
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+| [YARN-8444](https://issues.apache.org/jira/browse/YARN-8444) | NodeResourceMonitor crashes on bad swapFree value | Major | . | Jim Brennan | Jim Brennan |
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+| [YARN-8443](https://issues.apache.org/jira/browse/YARN-8443) | Total #VCores in cluster metrics is wrong when CapacityScheduler reserved some containers | Major | webapp | Tao Yang | Tao Yang |
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+| [YARN-8457](https://issues.apache.org/jira/browse/YARN-8457) | Compilation is broken with -Pyarn-ui | Major | webapp | Sunil Govindan | Sunil Govindan |
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+| [YARN-8401](https://issues.apache.org/jira/browse/YARN-8401) | [UI2] new ui is not accessible with out internet connection | Blocker | . | Bibin A Chundatt | Bibin A Chundatt |
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+| [YARN-8451](https://issues.apache.org/jira/browse/YARN-8451) | Multiple NM heartbeat thread created when a slow NM resync with RM | Major | nodemanager | Botong Huang | Botong Huang |
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+| [HADOOP-15548](https://issues.apache.org/jira/browse/HADOOP-15548) | Randomize local dirs | Minor | . | Jim Brennan | Jim Brennan |
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+| [YARN-8473](https://issues.apache.org/jira/browse/YARN-8473) | Containers being launched as app tears down can leave containers in NEW state | Major | nodemanager | Jason Lowe | Jason Lowe |
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+| [HDFS-13729](https://issues.apache.org/jira/browse/HDFS-13729) | Fix broken links to RBF documentation | Minor | documentation | jwhitter | Gabor Bota |
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+| [YARN-8518](https://issues.apache.org/jira/browse/YARN-8518) | test-container-executor test\_is\_empty() is broken | Major | . | Jim Brennan | Jim Brennan |
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+| [YARN-8515](https://issues.apache.org/jira/browse/YARN-8515) | container-executor can crash with SIGPIPE after nodemanager restart | Major | . | Jim Brennan | Jim Brennan |
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+| [YARN-8421](https://issues.apache.org/jira/browse/YARN-8421) | when moving app, activeUsers is increased, even though app does not have outstanding request | Major | . | kyungwan nam | |
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+| [HADOOP-15614](https://issues.apache.org/jira/browse/HADOOP-15614) | TestGroupsCaching.testExceptionOnBackgroundRefreshHandled reliably fails | Major | . | Kihwal Lee | Weiwei Yang |
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+| [YARN-8577](https://issues.apache.org/jira/browse/YARN-8577) | Fix the broken anchor in SLS site-doc | Minor | documentation | Weiwei Yang | Weiwei Yang |
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+| [YARN-4606](https://issues.apache.org/jira/browse/YARN-4606) | CapacityScheduler: applications could get starved because computation of #activeUsers considers pending apps | Critical | capacity scheduler, capacityscheduler | Karam Singh | Manikandan R |
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+| [HADOOP-15637](https://issues.apache.org/jira/browse/HADOOP-15637) | LocalFs#listLocatedStatus does not filter out hidden .crc files | Minor | fs | Erik Krogen | Erik Krogen |
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+| [HADOOP-15644](https://issues.apache.org/jira/browse/HADOOP-15644) | Hadoop Docker Image Pip Install Fails on branch-2 | Critical | build | Haibo Chen | Haibo Chen |
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+| [YARN-8331](https://issues.apache.org/jira/browse/YARN-8331) | Race condition in NM container launched after done | Major | . | Yang Wang | Pradeep Ambati |
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+| [HDFS-13758](https://issues.apache.org/jira/browse/HDFS-13758) | DatanodeManager should throw exception if it has BlockRecoveryCommand but the block is not under construction | Major | namenode | Wei-Chiu Chuang | chencan |
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+| [YARN-8612](https://issues.apache.org/jira/browse/YARN-8612) | Fix NM Collector Service Port issue in YarnConfiguration | Major | ATSv2 | Prabha Manepalli | Prabha Manepalli |
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+| [HADOOP-15674](https://issues.apache.org/jira/browse/HADOOP-15674) | Test failure TestSSLHttpServer.testExcludedCiphers with TLS\_ECDHE\_RSA\_WITH\_AES\_128\_CBC\_SHA256 cipher suite | Major | common | Gabor Bota | Szilard Nemeth |
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+| [YARN-8640](https://issues.apache.org/jira/browse/YARN-8640) | Restore previous state in container-executor after failure | Major | . | Jim Brennan | Jim Brennan |
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+| [HADOOP-14314](https://issues.apache.org/jira/browse/HADOOP-14314) | The OpenSolaris taxonomy link is dead in InterfaceClassification.md | Major | documentation | Daniel Templeton | Rui Gao |
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+| [YARN-8649](https://issues.apache.org/jira/browse/YARN-8649) | NPE in localizer hearbeat processing if a container is killed while localizing | Major | . | lujie | lujie |
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+| [HADOOP-10219](https://issues.apache.org/jira/browse/HADOOP-10219) | ipc.Client.setupIOstreams() needs to check for ClientCache.stopClient requested shutdowns | Major | ipc | Steve Loughran | Kihwal Lee |
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+| [MAPREDUCE-7131](https://issues.apache.org/jira/browse/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 |
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+| [HDFS-13836](https://issues.apache.org/jira/browse/HDFS-13836) | RBF: Handle mount table znode with null value | Major | federation, hdfs | yanghuafeng | yanghuafeng |
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+| [YARN-8709](https://issues.apache.org/jira/browse/YARN-8709) | CS preemption monitor always fails since one under-served queue was deleted | Major | capacityscheduler, scheduler preemption | Tao Yang | Tao Yang |
|
|
|
+| [HDFS-13051](https://issues.apache.org/jira/browse/HDFS-13051) | Fix dead lock during async editlog rolling if edit queue is full | Major | namenode | zhangwei | Daryn Sharp |
|
|
|
+| [YARN-8729](https://issues.apache.org/jira/browse/YARN-8729) | Node status updater thread could be lost after it is restarted | Critical | nodemanager | Tao Yang | Tao Yang |
|
|
|
+| [HDFS-13914](https://issues.apache.org/jira/browse/HDFS-13914) | Fix DN UI logs link broken when https is enabled after HDFS-13902 | Minor | datanode | Jianfei Jiang | Jianfei Jiang |
|
|
|
+| [MAPREDUCE-7133](https://issues.apache.org/jira/browse/MAPREDUCE-7133) | History Server task attempts REST API returns invalid data | Major | jobhistoryserver | Oleksandr Shevchenko | Oleksandr Shevchenko |
|
|
|
+| [YARN-8720](https://issues.apache.org/jira/browse/YARN-8720) | CapacityScheduler does not enforce max resource allocation check at queue level | Major | capacity scheduler, capacityscheduler, resourcemanager | Tarun Parimi | Tarun Parimi |
|
|
|
+| [HDFS-13844](https://issues.apache.org/jira/browse/HDFS-13844) | Fix the fmt\_bytes function in the dfs-dust.js | Minor | hdfs, ui | yanghuafeng | yanghuafeng |
|
|
|
+| [HADOOP-15755](https://issues.apache.org/jira/browse/HADOOP-15755) | StringUtils#createStartupShutdownMessage throws NPE when args is null | Major | . | Lokesh Jain | Dinesh Chitlangia |
|
|
|
+| [MAPREDUCE-3801](https://issues.apache.org/jira/browse/MAPREDUCE-3801) | org.apache.hadoop.mapreduce.v2.app.TestRuntimeEstimators.testExponentialEstimator fails intermittently | Major | mrv2 | Robert Joseph Evans | Jason Lowe |
|
|
|
+| [MAPREDUCE-7137](https://issues.apache.org/jira/browse/MAPREDUCE-7137) | MRAppBenchmark.benchmark1() fails with NullPointerException | Minor | test | Oleksandr Shevchenko | Oleksandr Shevchenko |
|
|
|
+| [MAPREDUCE-7138](https://issues.apache.org/jira/browse/MAPREDUCE-7138) | ThrottledContainerAllocator in MRAppBenchmark should implement RMHeartbeatHandler | Minor | test | Oleksandr Shevchenko | Oleksandr Shevchenko |
|
|
|
+| [HDFS-13908](https://issues.apache.org/jira/browse/HDFS-13908) | TestDataNodeMultipleRegistrations is flaky | Major | . | Íñigo Goiri | Ayush Saxena |
|
|
|
+| [YARN-8804](https://issues.apache.org/jira/browse/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](https://issues.apache.org/jira/browse/YARN-8774) | Memory leak when CapacityScheduler allocates from reserved container with non-default label | Critical | capacityscheduler | Tao Yang | Tao Yang |
|
|
|
+| [HADOOP-15817](https://issues.apache.org/jira/browse/HADOOP-15817) | Reuse Object Mapper in KMSJSONReader | Major | kms | Jonathan Eagles | Jonathan Eagles |
|
|
|
+| [HADOOP-15820](https://issues.apache.org/jira/browse/HADOOP-15820) | ZStandardDecompressor native code sets an integer field as a long | Blocker | . | Jason Lowe | Jason Lowe |
|
|
|
+| [HDFS-13964](https://issues.apache.org/jira/browse/HDFS-13964) | RBF: TestRouterWebHDFSContractAppend fails with No Active Namenode under nameservice | Major | . | Ayush Saxena | Ayush Saxena |
|
|
|
+| [HADOOP-15835](https://issues.apache.org/jira/browse/HADOOP-15835) | Reuse Object Mapper in KMSJSONWriter | Major | . | Jonathan Eagles | Jonathan Eagles |
|
|
|
+| [HDFS-13976](https://issues.apache.org/jira/browse/HDFS-13976) | Backport HDFS-12813 to branch-2.9 | Major | hdfs, hdfs-client | Lukas Majercak | Lukas Majercak |
|
|
|
+| [HADOOP-15679](https://issues.apache.org/jira/browse/HADOOP-15679) | ShutdownHookManager shutdown time needs to be configurable & extended | Major | util | Steve Loughran | Steve Loughran |
|
|
|
+| [HDFS-13802](https://issues.apache.org/jira/browse/HDFS-13802) | RBF: Remove FSCK from Router Web UI | Major | . | Fei Hui | Fei Hui |
|
|
|
+| [HADOOP-15859](https://issues.apache.org/jira/browse/HADOOP-15859) | ZStandardDecompressor.c mistakes a class for an instance | Blocker | . | Ben Lau | Jason Lowe |
|
|
|
+| [HADOOP-15850](https://issues.apache.org/jira/browse/HADOOP-15850) | CopyCommitter#concatFileChunks should check that the blocks per chunk is not 0 | Critical | tools/distcp | Ted Yu | Ted Yu |
|
|
|
+| [YARN-7502](https://issues.apache.org/jira/browse/YARN-7502) | Nodemanager restart docs should describe nodemanager supervised property | Major | documentation | Jason Lowe | Suma Shivaprasad |
|
|
|
+| [HADOOP-15866](https://issues.apache.org/jira/browse/HADOOP-15866) | Renamed HADOOP\_SECURITY\_GROUP\_SHELL\_COMMAND\_TIMEOUT keys break compatibility | Blocker | . | Wei-Chiu Chuang | Wei-Chiu Chuang |
|
|
|
+| [HADOOP-15822](https://issues.apache.org/jira/browse/HADOOP-15822) | zstd compressor can fail with a small output buffer | Major | . | Jason Lowe | Jason Lowe |
|
|
|
+| [HADOOP-15899](https://issues.apache.org/jira/browse/HADOOP-15899) | Update AWS Java SDK versions in NOTICE.txt | Major | . | Akira Ajisaka | Akira Ajisaka |
|
|
|
+| [HADOOP-15900](https://issues.apache.org/jira/browse/HADOOP-15900) | Update JSch versions in LICENSE.txt | Major | . | Akira Ajisaka | Akira Ajisaka |
|
|
|
+| [YARN-8858](https://issues.apache.org/jira/browse/YARN-8858) | CapacityScheduler should respect maximum node resource when per-queue maximum-allocation is being used. | Major | . | Sumana Sathish | Wangda Tan |
|
|
|
+| [YARN-8233](https://issues.apache.org/jira/browse/YARN-8233) | NPE in CapacityScheduler#tryCommit when handling allocate/reserve proposal whose allocatedOrReservedContainer is null | Critical | capacityscheduler | Tao Yang | Tao Yang |
|
|
|
+| [HADOOP-15923](https://issues.apache.org/jira/browse/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 |
|
|
|
+
|
|
|
+
|
|
|
+### TESTS:
|
|
|
+
|
|
|
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
|
|
|
+|:---- |:---- | :--- |:---- |:---- |:---- |
|
|
|
+| [HDFS-13337](https://issues.apache.org/jira/browse/HDFS-13337) | Backport HDFS-4275 to branch-2.9 | Minor | . | Íñigo Goiri | Xiao Liang |
|
|
|
+| [HDFS-13503](https://issues.apache.org/jira/browse/HDFS-13503) | Fix TestFsck test failures on Windows | Major | hdfs | Xiao Liang | Xiao Liang |
|
|
|
+| [HDFS-13542](https://issues.apache.org/jira/browse/HDFS-13542) | TestBlockManager#testNeededReplicationWhileAppending fails due to improper cluster shutdown in TestBlockManager#testBlockManagerMachinesArray on Windows | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [HDFS-13551](https://issues.apache.org/jira/browse/HDFS-13551) | TestMiniDFSCluster#testClusterSetStorageCapacity does not shut down cluster | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [HDFS-11700](https://issues.apache.org/jira/browse/HDFS-11700) | TestHDFSServerPorts#testBackupNodePorts doesn't pass on Windows | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [HDFS-13548](https://issues.apache.org/jira/browse/HDFS-13548) | TestResolveHdfsSymlink#testFcResolveAfs fails on Windows | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [HDFS-13567](https://issues.apache.org/jira/browse/HDFS-13567) | TestNameNodeMetrics#testGenerateEDEKTime,TestNameNodeMetrics#testResourceCheck should use a different cluster basedir | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [HDFS-13557](https://issues.apache.org/jira/browse/HDFS-13557) | TestDFSAdmin#testListOpenFiles fails on Windows | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [HDFS-13550](https://issues.apache.org/jira/browse/HDFS-13550) | TestDebugAdmin#testComputeMetaCommand fails on Windows | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [HDFS-13559](https://issues.apache.org/jira/browse/HDFS-13559) | TestBlockScanner does not close TestContext properly | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [HDFS-13570](https://issues.apache.org/jira/browse/HDFS-13570) | TestQuotaByStorageType,TestQuota,TestDFSOutputStream fail on Windows | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [HDFS-13558](https://issues.apache.org/jira/browse/HDFS-13558) | TestDatanodeHttpXFrame does not shut down cluster | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [HDFS-13554](https://issues.apache.org/jira/browse/HDFS-13554) | TestDatanodeRegistration#testForcedRegistration does not shut down cluster | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [HDFS-13556](https://issues.apache.org/jira/browse/HDFS-13556) | TestNestedEncryptionZones does not shut down cluster | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [HDFS-13560](https://issues.apache.org/jira/browse/HDFS-13560) | Insufficient system resources exist to complete the requested service for some tests on Windows | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [HDFS-13592](https://issues.apache.org/jira/browse/HDFS-13592) | TestNameNodePrunesMissingStorages#testNameNodePrunesUnreportedStorages does not shut down cluster properly | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [HDFS-13593](https://issues.apache.org/jira/browse/HDFS-13593) | TestBlockReaderLocalLegacy#testBlockReaderLocalLegacyWithAppend fails on Windows | Minor | test | Anbang Hu | Anbang Hu |
|
|
|
+| [HDFS-13587](https://issues.apache.org/jira/browse/HDFS-13587) | TestQuorumJournalManager fails on Windows | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [HDFS-13620](https://issues.apache.org/jira/browse/HDFS-13620) | Randomize the test directory path for TestHDFSFileSystemContract | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [HDFS-13591](https://issues.apache.org/jira/browse/HDFS-13591) | TestDFSShell#testSetrepLow fails on Windows | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [HDFS-13632](https://issues.apache.org/jira/browse/HDFS-13632) | Randomize baseDir for MiniJournalCluster in MiniQJMHACluster for TestDFSAdminWithHA | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [MAPREDUCE-7102](https://issues.apache.org/jira/browse/MAPREDUCE-7102) | Fix TestJavaSerialization for Windows due a mismatch line separator | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola |
|
|
|
+| [HDFS-13652](https://issues.apache.org/jira/browse/HDFS-13652) | Randomize baseDir for MiniDFSCluster in TestBlockScanner | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [YARN-8370](https://issues.apache.org/jira/browse/YARN-8370) | Some Node Manager tests fail on Windows due to improper path/file separator | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [YARN-8422](https://issues.apache.org/jira/browse/YARN-8422) | TestAMSimulator failing with NPE | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola |
|
|
|
+| [HADOOP-15532](https://issues.apache.org/jira/browse/HADOOP-15532) | TestBasicDiskValidator fails with NoSuchFileException | Minor | . | Íñigo Goiri | Giovanni Matteo Fumarola |
|
|
|
+| [HDFS-13563](https://issues.apache.org/jira/browse/HDFS-13563) | TestDFSAdminWithHA times out on Windows | Minor | . | Anbang Hu | Lukas Majercak |
|
|
|
+| [HDFS-13681](https://issues.apache.org/jira/browse/HDFS-13681) | Fix TestStartup.testNNFailToStartOnReadOnlyNNDir test failure on Windows | Major | test | Xiao Liang | Xiao Liang |
|
|
|
+
|
|
|
+
|
|
|
+### SUB-TASKS:
|
|
|
+
|
|
|
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
|
|
|
+|:---- |:---- | :--- |:---- |:---- |:---- |
|
|
|
+| [HDFS-13299](https://issues.apache.org/jira/browse/HDFS-13299) | RBF : Fix compilation error in branch-2 (TestMultipleDestinationResolver) | Blocker | . | Brahma Reddy Battula | Brahma Reddy Battula |
|
|
|
+| [HDFS-13353](https://issues.apache.org/jira/browse/HDFS-13353) | RBF: TestRouterWebHDFSContractCreate failed | Major | test | Takanobu Asanuma | Takanobu Asanuma |
|
|
|
+| [YARN-8110](https://issues.apache.org/jira/browse/YARN-8110) | AMRMProxy recover should catch for all throwable to avoid premature exit | Major | . | Botong Huang | Botong Huang |
|
|
|
+| [HDFS-13402](https://issues.apache.org/jira/browse/HDFS-13402) | RBF: Fix java doc for StateStoreFileSystemImpl | Minor | hdfs | Yiran Wu | Yiran Wu |
|
|
|
+| [HDFS-13410](https://issues.apache.org/jira/browse/HDFS-13410) | RBF: Support federation with no subclusters | Minor | . | Íñigo Goiri | Íñigo Goiri |
|
|
|
+| [HDFS-13384](https://issues.apache.org/jira/browse/HDFS-13384) | RBF: Improve timeout RPC call mechanism | Minor | . | Íñigo Goiri | Íñigo Goiri |
|
|
|
+| [HDFS-13045](https://issues.apache.org/jira/browse/HDFS-13045) | RBF: Improve error message returned from subcluster | Minor | . | Wei Yan | Íñigo Goiri |
|
|
|
+| [HDFS-13428](https://issues.apache.org/jira/browse/HDFS-13428) | RBF: Remove LinkedList From StateStoreFileImpl.java | Trivial | federation | BELUGA BEHR | BELUGA BEHR |
|
|
|
+| [HDFS-13386](https://issues.apache.org/jira/browse/HDFS-13386) | RBF: Wrong date information in list file(-ls) result | Minor | . | Dibyendu Karmakar | Dibyendu Karmakar |
|
|
|
+| [YARN-7810](https://issues.apache.org/jira/browse/YARN-7810) | TestDockerContainerRuntime test failures due to UID lookup of a non-existent user | Major | . | Shane Kumpf | Shane Kumpf |
|
|
|
+| [HDFS-13435](https://issues.apache.org/jira/browse/HDFS-13435) | RBF: Improve the error loggings for printing the stack trace | Major | . | Yiqun Lin | Yiqun Lin |
|
|
|
+| [YARN-7189](https://issues.apache.org/jira/browse/YARN-7189) | Container-executor doesn't remove Docker containers that error out early | Major | yarn | Eric Badger | Eric Badger |
|
|
|
+| [HDFS-13466](https://issues.apache.org/jira/browse/HDFS-13466) | RBF: Add more router-related information to the UI | Minor | . | Wei Yan | Wei Yan |
|
|
|
+| [HDFS-13453](https://issues.apache.org/jira/browse/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](https://issues.apache.org/jira/browse/HDFS-13478) | RBF: Disabled Nameservice store API | Major | . | Íñigo Goiri | Íñigo Goiri |
|
|
|
+| [HDFS-13490](https://issues.apache.org/jira/browse/HDFS-13490) | RBF: Fix setSafeMode in the Router | Major | . | Íñigo Goiri | Íñigo Goiri |
|
|
|
+| [HDFS-13484](https://issues.apache.org/jira/browse/HDFS-13484) | RBF: Disable Nameservices from the federation | Major | . | Íñigo Goiri | Íñigo Goiri |
|
|
|
+| [HDFS-13326](https://issues.apache.org/jira/browse/HDFS-13326) | RBF: Improve the interfaces to modify and view mount tables | Minor | . | Wei Yan | Gang Li |
|
|
|
+| [HDFS-13499](https://issues.apache.org/jira/browse/HDFS-13499) | RBF: Show disabled name services in the UI | Minor | . | Íñigo Goiri | Íñigo Goiri |
|
|
|
+| [HDFS-13508](https://issues.apache.org/jira/browse/HDFS-13508) | RBF: Normalize paths (automatically) when adding, updating, removing or listing mount table entries | Minor | . | Ekanth Sethuramalingam | Ekanth Sethuramalingam |
|
|
|
+| [HDFS-13434](https://issues.apache.org/jira/browse/HDFS-13434) | RBF: Fix dead links in RBF document | Major | documentation | Akira Ajisaka | Chetna Chaudhari |
|
|
|
+| [HDFS-13488](https://issues.apache.org/jira/browse/HDFS-13488) | RBF: Reject requests when a Router is overloaded | Major | . | Íñigo Goiri | Íñigo Goiri |
|
|
|
+| [HDFS-13525](https://issues.apache.org/jira/browse/HDFS-13525) | RBF: Add unit test TestStateStoreDisabledNameservice | Major | . | Yiqun Lin | Yiqun Lin |
|
|
|
+| [YARN-8253](https://issues.apache.org/jira/browse/YARN-8253) | HTTPS Ats v2 api call fails with "bad HTTP parsed" | Critical | ATSv2 | Yesha Vora | Charan Hebri |
|
|
|
+| [HADOOP-15454](https://issues.apache.org/jira/browse/HADOOP-15454) | TestRollingFileSystemSinkWithLocal fails on Windows | Major | test | Xiao Liang | Xiao Liang |
|
|
|
+| [HADOOP-15498](https://issues.apache.org/jira/browse/HADOOP-15498) | TestHadoopArchiveLogs (#testGenerateScript, #testPrepareWorkingDir) fails on Windows | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [HADOOP-15497](https://issues.apache.org/jira/browse/HADOOP-15497) | TestTrash should use proper test path to avoid failing on Windows | Minor | . | Anbang Hu | Anbang Hu |
|
|
|
+| [HDFS-13637](https://issues.apache.org/jira/browse/HDFS-13637) | RBF: Router fails when threadIndex (in ConnectionPool) wraps around Integer.MIN\_VALUE | Critical | federation | CR Hota | CR Hota |
|
|
|
+| [YARN-4781](https://issues.apache.org/jira/browse/YARN-4781) | Support intra-queue preemption for fairness ordering policy. | Major | scheduler | Wangda Tan | Eric Payne |
|
|
|
+| [HDFS-13281](https://issues.apache.org/jira/browse/HDFS-13281) | Namenode#createFile should be /.reserved/raw/ aware. | Critical | encryption | Rushabh S Shah | Rushabh S Shah |
|
|
|
+| [YARN-4677](https://issues.apache.org/jira/browse/YARN-4677) | RMNodeResourceUpdateEvent update from scheduler can lead to race condition | Major | graceful, resourcemanager, scheduler | Brook Zhou | Wilfred Spiegelenburg |
|
|
|
+| [HADOOP-15529](https://issues.apache.org/jira/browse/HADOOP-15529) | ContainerLaunch#testInvalidEnvVariableSubstitutionType is not supported in Windows | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola |
|
|
|
+| [HADOOP-15458](https://issues.apache.org/jira/browse/HADOOP-15458) | TestLocalFileSystem#testFSOutputStreamBuilder fails on Windows | Minor | test | Xiao Liang | Xiao Liang |
|
|
|
+| [YARN-8481](https://issues.apache.org/jira/browse/YARN-8481) | AMRMProxyPolicies should accept heartbeat response from new/unknown subclusters | Minor | amrmproxy, federation | Botong Huang | Botong Huang |
|
|
|
+| [HDFS-13475](https://issues.apache.org/jira/browse/HDFS-13475) | RBF: Admin cannot enforce Router enter SafeMode | Major | . | Wei Yan | Chao Sun |
|
|
|
+| [HDFS-13733](https://issues.apache.org/jira/browse/HDFS-13733) | RBF: Add Web UI configurations and descriptions to RBF document | Minor | documentation | Takanobu Asanuma | Takanobu Asanuma |
|
|
|
+| [HDFS-13743](https://issues.apache.org/jira/browse/HDFS-13743) | RBF: Router throws NullPointerException due to the invalid initialization of MountTableResolver | Major | . | Takanobu Asanuma | Takanobu Asanuma |
|
|
|
+| [HDFS-13750](https://issues.apache.org/jira/browse/HDFS-13750) | RBF: Router ID in RouterRpcClient is always null | Major | . | Takanobu Asanuma | Takanobu Asanuma |
|
|
|
+| [HDFS-13848](https://issues.apache.org/jira/browse/HDFS-13848) | Refactor NameNode failover proxy providers | Major | ha, hdfs-client | Konstantin Shvachko | Konstantin Shvachko |
|
|
|
+| [HADOOP-15699](https://issues.apache.org/jira/browse/HADOOP-15699) | Fix some of testContainerManager failures in Windows | Major | . | Botong Huang | Botong Huang |
|
|
|
+| [HADOOP-15731](https://issues.apache.org/jira/browse/HADOOP-15731) | TestDistributedShell fails on Windows | Major | . | Botong Huang | Botong Huang |
|
|
|
+| [HADOOP-15759](https://issues.apache.org/jira/browse/HADOOP-15759) | AliyunOSS: update oss-sdk version to 3.0.0 | Major | fs/oss | wujinhu | wujinhu |
|
|
|
+| [HADOOP-15671](https://issues.apache.org/jira/browse/HADOOP-15671) | AliyunOSS: Support Assume Roles in AliyunOSS | Major | fs/oss | wujinhu | wujinhu |
|
|
|
+| [HDFS-13790](https://issues.apache.org/jira/browse/HDFS-13790) | RBF: Move ClientProtocol APIs to its own module | Major | . | Íñigo Goiri | Chao Sun |
|
|
|
+| [HADOOP-15607](https://issues.apache.org/jira/browse/HADOOP-15607) | AliyunOSS: fix duplicated partNumber issue in AliyunOSSBlockOutputStream | Critical | . | wujinhu | wujinhu |
|
|
|
+| [HADOOP-15868](https://issues.apache.org/jira/browse/HADOOP-15868) | AliyunOSS: update document for properties of multiple part download, multiple part upload and directory copy | Major | fs/oss | wujinhu | wujinhu |
|
|
|
+
|
|
|
+
|
|
|
+### OTHER:
|
|
|
+
|
|
|
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
|
|
|
+|:---- |:---- | :--- |:---- |:---- |:---- |
|
|
|
+
|
|
|
+
|
Akira Ajisaka