Update releasenotes and changelogs for 3.0.1 release
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+-->
+# Apache Hadoop Changelog
+
+## Release 3.0.1 - 2018-03-16
+
+### INCOMPATIBLE CHANGES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-12990](https://issues.apache.org/jira/browse/HDFS-12990) | Change default NameNode RPC port back to 8020 | Critical | namenode | Xiao Chen | Xiao Chen |
+
+
+### 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 |
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-14872](https://issues.apache.org/jira/browse/HADOOP-14872) | CryptoInputStream should implement unbuffer | Major | fs, security | John Zhuge | John Zhuge |
+| [YARN-7414](https://issues.apache.org/jira/browse/YARN-7414) | FairScheduler#getAppWeight() should be moved into FSAppAttempt#getWeight() | Minor | fairscheduler | Daniel Templeton | Soumabrata Chakraborty |
+| [HADOOP-15023](https://issues.apache.org/jira/browse/HADOOP-15023) | ValueQueue should also validate (lowWatermark \* numValues) \> 0 on construction | Minor | . | Xiao Chen | Xiao Chen |
+| [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 |
+| [YARN-7524](https://issues.apache.org/jira/browse/YARN-7524) | Remove unused FairSchedulerEventLog | Major | fairscheduler | Wilfred Spiegelenburg | Wilfred Spiegelenburg |
+| [YARN-7495](https://issues.apache.org/jira/browse/YARN-7495) | Improve robustness of the AggregatedLogDeletionService | Major | log-aggregation | Jonathan Eagles | Jonathan Eagles |
+| [YARN-7611](https://issues.apache.org/jira/browse/YARN-7611) | Node manager web UI should display container type in containers page | Major | nodemanager, webapp | Weiwei Yang | Weiwei Yang |
+| [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 Rodríguez Hortalá | Juan Rodríguez 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 |
+| [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 |
+| [HDFS-12819](https://issues.apache.org/jira/browse/HDFS-12819) | Setting/Unsetting EC policy shows warning if the directory is not empty | Minor | erasure-coding | Lei (Eddy) Xu | Lei (Eddy) Xu |
+| [HDFS-12927](https://issues.apache.org/jira/browse/HDFS-12927) | Update erasure coding doc to address unsupported APIs | Major | erasure-coding | Lei (Eddy) Xu | Lei (Eddy) Xu |
+| [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 |
+| [HDFS-12818](https://issues.apache.org/jira/browse/HDFS-12818) | Support multiple storages in DataNodeCluster / SimulatedFSDataset | Minor | datanode, test | Erik Krogen | Erik Krogen |
+| [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 |
+| [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 |
+| [YARN-7590](https://issues.apache.org/jira/browse/YARN-7590) | Improve container-executor validation check | Major | security, yarn | Eric Yang | Eric Yang |
+| [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 |
+| [HADOOP-15185](https://issues.apache.org/jira/browse/HADOOP-15185) | Update adls connector to use the current version of ADLS SDK | Major | fs/adl | Atul Sikaria | Atul Sikaria |
+| [HADOOP-15189](https://issues.apache.org/jira/browse/HADOOP-15189) | backport HADOOP-15039 to branch-2 and branch-3 | Blocker | . | Genmao Yu | Genmao Yu |
+| [HADOOP-15186](https://issues.apache.org/jira/browse/HADOOP-15186) | Allow Azure Data Lake SDK dependency version to be set on the command line | Major | build, fs/adl | Vishwajeet Dusane | Vishwajeet Dusane |
+| [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 | . | 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-7728](https://issues.apache.org/jira/browse/YARN-7728) | Expose container preemptions related information in Capacity Scheduler queue metrics | Major | . | Eric Payne | Eric Payne |
+| [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-15204](https://issues.apache.org/jira/browse/HADOOP-15204) | Add Configuration API for parsing storage sizes | Minor | conf | Anu Engineer | Anu Engineer |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [YARN-7361](https://issues.apache.org/jira/browse/YARN-7361) | Improve the docker container runtime documentation | Major | . | Shane Kumpf | Shane Kumpf |
+| [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 |
+| [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-7531](https://issues.apache.org/jira/browse/YARN-7531) | ResourceRequest.equal does not check ExecutionTypeRequest.enforceExecutionType() | Major | api | Haibo Chen | Haibo Chen |
+| [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-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-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-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-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 |
+| [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 |
+| [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-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 |
+| [HADOOP-15098](https://issues.apache.org/jira/browse/HADOOP-15098) | TestClusterTopology#testChooseRandom fails intermittently | Major | test | Zsolt Venczel | Zsolt Venczel |
+| [HDFS-12891](https://issues.apache.org/jira/browse/HDFS-12891) | Do not invalidate blocks if toInvalidate is empty | Major | . | Zsolt Venczel | Zsolt Venczel |
+| [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 |
+| [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 |
+| [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-12347](https://issues.apache.org/jira/browse/HDFS-12347) | TestBalancerRPCDelay#testBalancerRPCDelay fails very frequently | Critical | test | Xiao Chen | Bharat Viswanadham |
+| [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 |
+| [HDFS-12845](https://issues.apache.org/jira/browse/HDFS-12845) | JournalNode Test failures | Major | journal-node | Bharat Viswanadham | Bharat Viswanadham |
+| [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 |
+| [HDFS-12938](https://issues.apache.org/jira/browse/HDFS-12938) | TestErasureCodigCLI testAll failing consistently. | Major | erasure-coding, hdfs | Rushabh S Shah | Ajay Kumar |
+| [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 |
+| [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 |
+| [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 |
+| [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-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-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-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 |
+| [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-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-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 |
+| [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 |
+| [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 |
+| [HADOOP-15166](https://issues.apache.org/jira/browse/HADOOP-15166) | CLI MiniCluster fails with ClassNotFoundException o.a.h.yarn.server.timelineservice.collector.TimelineCollectorManager | Major | . | Gera Shegalov | Gera Shegalov |
+| [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-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-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 |
+| [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 |
+| [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 |
+| [HDFS-13054](https://issues.apache.org/jira/browse/HDFS-13054) | Handling PathIsNotEmptyDirectoryException in DFSClient delete call | Major | hdfs-client | Nanda kumar | Nanda kumar |
+| [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 |
+| [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 |
+| [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-12942](https://issues.apache.org/jira/browse/HDFS-12942) | Synchronization issue in FSDataSetImpl#moveBlock | Major | . | Ajay Kumar | Ajay Kumar |
+| [HDFS-13048](https://issues.apache.org/jira/browse/HDFS-13048) | LowRedundancyReplicatedBlocks metric can be negative | Major | metrics | Akira Ajisaka | Akira Ajisaka |
+| [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-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-7890](https://issues.apache.org/jira/browse/YARN-7890) | NPE during container relaunch | Major | . | Billie Rinaldi | Jason Lowe |
+| [YARN-7873](https://issues.apache.org/jira/browse/YARN-7873) | Revert YARN-6078 | Blocker | . | Billie Rinaldi | Billie Rinaldi |
+| [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 |
+| [HDFS-13120](https://issues.apache.org/jira/browse/HDFS-13120) | Snapshot diff could be corrupted after concat | Major | namenode, snapshots | Xiaoyu Yao | Xiaoyu Yao |
+| [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 |
+| [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-10571](https://issues.apache.org/jira/browse/HADOOP-10571) | Use Log.\*(Object, Throwable) overload to log exceptions | Major | . | Arpit Agarwal | Andras Bokor |
+| [HDFS-13164](https://issues.apache.org/jira/browse/HDFS-13164) | File not closed if streamer fail with DSQuotaExceededException | Major | hdfs-client | Xiao Chen | Xiao Chen |
+| [HDFS-13244](https://issues.apache.org/jira/browse/HDFS-13244) | Add stack, conf, metrics links to utilities dropdown in NN webUI | Major | . | Bharat Viswanadham | Bharat Viswanadham |
+| [YARN-8022](https://issues.apache.org/jira/browse/YARN-8022) | ResourceManager UI cluster/app/\<app-id\> page fails to render | Blocker | webapp | Tarun Parimi | Tarun Parimi |
+
+
+### TESTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [MAPREDUCE-7011](https://issues.apache.org/jira/browse/MAPREDUCE-7011) | TestClientDistributedCacheManager::testDetermineCacheVisibilities assumes all parent dirs set other exec | Trivial | . | Chris Douglas | Chris Douglas |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-14993](https://issues.apache.org/jira/browse/HADOOP-14993) | AliyunOSS: Override listFiles and listLocatedStatus | Major | fs/oss | Genmao Yu | Genmao Yu |
+| [YARN-6953](https://issues.apache.org/jira/browse/YARN-6953) | Clean up ResourceUtils.setMinimumAllocationForMandatoryResources() and setMaximumAllocationForMandatoryResources() | Minor | resourcemanager | Daniel Templeton | Manikandan R |
+| [HDFS-12801](https://issues.apache.org/jira/browse/HDFS-12801) | RBF: Set MountTableResolver as default file resolver | Minor | . | Íñigo Goiri | Íñigo Goiri |
+| [HADOOP-15024](https://issues.apache.org/jira/browse/HADOOP-15024) | AliyunOSS: support user agent configuration and include that & Hadoop version information to oss server | Major | fs, fs/oss | SammiChen | SammiChen |
+| [HDFS-12858](https://issues.apache.org/jira/browse/HDFS-12858) | RBF: Add router admin commands usage in HDFS commands reference doc | Minor | documentation | Yiqun Lin | Yiqun Lin |
+| [HDFS-12835](https://issues.apache.org/jira/browse/HDFS-12835) | RBF: Fix Javadoc parameter errors | Minor | . | Wei Yan | Wei Yan |
+| [YARN-6907](https://issues.apache.org/jira/browse/YARN-6907) | Node information page in the old web UI should report resource types | Major | resourcemanager | Daniel Templeton | Gergely Novák |
+| [HDFS-12396](https://issues.apache.org/jira/browse/HDFS-12396) | Webhdfs file system should get delegation token from kms provider. | Major | encryption, kms, webhdfs | Rushabh S Shah | Rushabh S Shah |
+| [YARN-7610](https://issues.apache.org/jira/browse/YARN-7610) | Extend Distributed Shell to support launching job with opportunistic containers | Major | applications/distributed-shell | Weiwei Yang | Weiwei Yang |
+| [HDFS-12875](https://issues.apache.org/jira/browse/HDFS-12875) | RBF: Complete logic for -readonly option of dfsrouteradmin add command | Major | . | Yiqun Lin | Íñigo Goiri |
+| [YARN-7383](https://issues.apache.org/jira/browse/YARN-7383) | Node resource is not parsed correctly for resource names containing dot | Major | nodemanager, resourcemanager | Jonathan Hung | Gergely Novák |
+| [YARN-7119](https://issues.apache.org/jira/browse/YARN-7119) | Support multiple resource types in rmadmin updateNodeResource command | Major | nodemanager, resourcemanager | Daniel Templeton | Manikandan R |
+| [YARN-7617](https://issues.apache.org/jira/browse/YARN-7617) | Add a flag in distributed shell to automatically PROMOTE opportunistic containers to guaranteed once they are started | Minor | applications/distributed-shell | Weiwei Yang | Weiwei Yang |
+| [HDFS-12937](https://issues.apache.org/jira/browse/HDFS-12937) | RBF: Add more unit tests for router admin commands | Major | test | Yiqun Lin | Yiqun Lin |
+| [YARN-7032](https://issues.apache.org/jira/browse/YARN-7032) | [ATSv2] NPE while starting hbase co-processor when HBase authorization is enabled. | Critical | . | Rohith Sharma K S | Rohith Sharma K S |
+| [HADOOP-14965](https://issues.apache.org/jira/browse/HADOOP-14965) | s3a input stream "normal" fadvise mode to be adaptive | Major | fs/s3 | Steve Loughran | Steve Loughran |
+| [HADOOP-15086](https://issues.apache.org/jira/browse/HADOOP-15086) | NativeAzureFileSystem file rename is not atomic | Major | fs/azure | Shixiong Zhu | Thomas Marquardt |
+| [HDFS-12988](https://issues.apache.org/jira/browse/HDFS-12988) | RBF: Mount table entries not properly updated in the local cache | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [YARN-7716](https://issues.apache.org/jira/browse/YARN-7716) | metricsTimeStart and metricsTimeEnd should be all lower case in the doc | Major | timelinereader | Haibo Chen | Haibo Chen |
+| [HDFS-12802](https://issues.apache.org/jira/browse/HDFS-12802) | RBF: Control MountTableResolver cache size | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-12919](https://issues.apache.org/jira/browse/HDFS-12919) | RBF: Support erasure coding methods in RouterRpcServer | Critical | . | Íñigo Goiri | Íñigo Goiri |
+| [YARN-6736](https://issues.apache.org/jira/browse/YARN-6736) | Consider writing to both ats v1 & v2 from RM for smoother upgrades | Major | timelineserver | Vrushali C | Aaron Gresch |
+| [HADOOP-15027](https://issues.apache.org/jira/browse/HADOOP-15027) | AliyunOSS: Support multi-thread pre-read to improve sequential read from Hadoop to Aliyun OSS performance | Major | fs/oss | wujinhu | wujinhu |
+| [HDFS-13028](https://issues.apache.org/jira/browse/HDFS-13028) | RBF: Fix spurious TestRouterRpc#testProxyGetStats | Minor | . | Íñigo Goiri | Íñigo Goiri |
+| [YARN-5094](https://issues.apache.org/jira/browse/YARN-5094) | some YARN container events have timestamp of -1 | Critical | timelineserver | Sangjin Lee | Haibo Chen |
+| [YARN-7782](https://issues.apache.org/jira/browse/YARN-7782) | Enable user re-mapping for Docker containers in yarn-default.xml | Blocker | security, yarn | Eric Yang | Eric Yang |
+| [HDFS-12772](https://issues.apache.org/jira/browse/HDFS-12772) | RBF: Federation Router State State Store internal API | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-13042](https://issues.apache.org/jira/browse/HDFS-13042) | RBF: Heartbeat Router State | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-13049](https://issues.apache.org/jira/browse/HDFS-13049) | RBF: Inconsistent Router OPTS config in branch-2 and branch-3 | Minor | . | Wei Yan | Wei Yan |
+| [HDFS-12574](https://issues.apache.org/jira/browse/HDFS-12574) | Add CryptoInputStream to WebHdfsFileSystem read call. | Major | encryption, kms, webhdfs | Rushabh S Shah | Rushabh S Shah |
+| [HDFS-13044](https://issues.apache.org/jira/browse/HDFS-13044) | RBF: Add a safe mode for the Router | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-13043](https://issues.apache.org/jira/browse/HDFS-13043) | RBF: Expose the state of the Routers in the federation | Major | . | Íñigo Goiri | Íñigo Goiri |
+| [HDFS-12997](https://issues.apache.org/jira/browse/HDFS-12997) | Move logging to slf4j in BlockPoolSliceStorage and Storage | Major | . | Ajay Kumar | Ajay Kumar |
+| [HDFS-13068](https://issues.apache.org/jira/browse/HDFS-13068) | RBF: Add router admin option to manage safe mode | Major | . | Íñigo Goiri | Yiqun Lin |
+| [HADOOP-15247](https://issues.apache.org/jira/browse/HADOOP-15247) | Move commons-net up to 3.6 | Minor | fs | Steve Loughran | Steve Loughran |
+| [HADOOP-15090](https://issues.apache.org/jira/browse/HADOOP-15090) | Add ADL troubleshooting doc | Major | documentation, fs/adl | Steve Loughran | Steve Loughran |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-15149](https://issues.apache.org/jira/browse/HADOOP-15149) | CryptoOutputStream should implement StreamCapabilities | Major | fs | Mike Drob | Xiao Chen |
+| [YARN-7691](https://issues.apache.org/jira/browse/YARN-7691) | Add Unit Tests for ContainersLauncher | Major | . | Sampada Dehankar | Sampada Dehankar |
+| [HADOOP-15177](https://issues.apache.org/jira/browse/HADOOP-15177) | Update the release year to 2018 | Blocker | build | Akira Ajisaka | Bharat Viswanadham |
+| [HADOOP-15197](https://issues.apache.org/jira/browse/HADOOP-15197) | Remove tomcat from the Hadoop-auth test bundle | Major | . | Xiao Chen | Xiao Chen |
+
+
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/3.0.1/RELEASENOTES.3.0.1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/3.0.1/RELEASENOTES.3.0.1.md
new file mode 100644
index 0000000..e9663bc
--- /dev/null
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/3.0.1/RELEASENOTES.3.0.1.md
@@ -0,0 +1,54 @@
+
+<!---
+# 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 3.0.1 Release Notes
+
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
+
+
+---
+
+* [HADOOP-15027](https://issues.apache.org/jira/browse/HADOOP-15027) | *Major* | **AliyunOSS: Support multi-thread pre-read to improve sequential read from Hadoop to Aliyun OSS performance**
+
+Support multi-thread pre-read in AliyunOSSInputStream to improve the sequential read performance from Hadoop to Aliyun OSS.
+
+
+---
+
+* [HDFS-12528](https://issues.apache.org/jira/browse/HDFS-12528) | *Major* | **Add an option to not disable short-circuit reads on failures**
+
+Added an option to not disables short-circuit reads on failures, by setting dfs.domain.socket.disable.interval.seconds to 0.
+
+
+---
+
+* [HDFS-13083](https://issues.apache.org/jira/browse/HDFS-13083) | *Major* | **RBF: Fix doc error setting up client**
+
+Fix the document error of setting up HFDS Router Federation
+
+
+---
+
+* [HDFS-12990](https://issues.apache.org/jira/browse/HDFS-12990) | *Critical* | **Change default NameNode RPC port back to 8020**
+
+HDFS NameNode default RPC port is changed back to 8020. The only official release that has this differently is 3.0.0, which used 9820.
+
+It is recommended for 2.x users to upgrade to 3.0.1+, to reduce the burden on changing default NN RPC port.
+
+
+
