http://git-wip-us.apache.org/repos/asf/hadoop/blob/d759b4bd/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.0/CHANGES.2.6.0.md ---------------------------------------------------------------------- diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.0/CHANGES.2.6.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.0/CHANGES.2.6.0.md new file mode 100644 index 0000000..85098fe --- /dev/null +++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.6.0/CHANGES.2.6.0.md @@ -0,0 +1,964 @@ + +<!--- +# 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 2.6.0 - 2014-11-18 + +### INCOMPATIBLE CHANGES: + +| JIRA | Summary | Priority | Component | Reporter | Contributor | +|:---- |:---- | :--- |:---- |:---- |:---- | +| [HADOOP-8944](https://issues.apache.org/jira/browse/HADOOP-8944) | Shell command fs -count should include human readable option | Trivial | . | Jonathan Allen | Jonathan Allen | +| [YARN-2615](https://issues.apache.org/jira/browse/YARN-2615) | ClientToAMTokenIdentifier and DelegationTokenIdentifier should allow extended fields | Blocker | . | Junping Du | Junping Du | +| [YARN-1051](https://issues.apache.org/jira/browse/YARN-1051) | YARN Admission Control/Planner: enhancing the resource allocation model with time. | Major | capacityscheduler, resourcemanager, scheduler | Carlo Curino | Carlo Curino | +| [YARN-668](https://issues.apache.org/jira/browse/YARN-668) | TokenIdentifier serialization should consider Unknown fields | Blocker | . | Siddharth Seth | Junping Du | + + +### NEW FEATURES: + +| JIRA | Summary | Priority | Component | Reporter | Contributor | +|:---- |:---- | :--- |:---- |:---- |:---- | +| [HADOOP-10893](https://issues.apache.org/jira/browse/HADOOP-10893) | isolated classloader on the client side | Major | util | Sangjin Lee | Sangjin Lee | +| [HADOOP-10719](https://issues.apache.org/jira/browse/HADOOP-10719) | Add generateEncryptedKey and decryptEncryptedKey methods to KeyProvider | Major | security | Alejandro Abdelnur | Arun Suresh | +| [HADOOP-10607](https://issues.apache.org/jira/browse/HADOOP-10607) | Create an API to Separate Credentials/Password Storage from Applications | Major | security | Larry McCay | Larry McCay | +| [HADOOP-10400](https://issues.apache.org/jira/browse/HADOOP-10400) | Incorporate new S3A FileSystem implementation | Major | fs, fs/s3 | Jordan Mendelson | Jordan Mendelson | +| [HADOOP-10150](https://issues.apache.org/jira/browse/HADOOP-10150) | Hadoop cryptographic file system | Major | security | Yi Liu | Yi Liu | +| [HDFS-6959](https://issues.apache.org/jira/browse/HDFS-6959) | Make the HDFS home directory location customizable. | Minor | . | Kevin Odell | Yongjun Zhang | +| [HDFS-6634](https://issues.apache.org/jira/browse/HDFS-6634) | inotify in HDFS | Major | hdfs-client, namenode, qjm | James Thomas | James Thomas | +| [HDFS-6584](https://issues.apache.org/jira/browse/HDFS-6584) | Support Archival Storage | Major | balancer & mover, namenode | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-6581](https://issues.apache.org/jira/browse/HDFS-6581) | Write to single replica in memory | Major | datanode, hdfs-client, namenode | Arpit Agarwal | Arpit Agarwal | +| [HDFS-6134](https://issues.apache.org/jira/browse/HDFS-6134) | Transparent data at rest encryption | Major | security | Alejandro Abdelnur | Charles Lamb | +| [HDFS-4257](https://issues.apache.org/jira/browse/HDFS-4257) | The ReplaceDatanodeOnFailure policies could have a forgiving option | Minor | hdfs-client | Harsh J | Tsz Wo Nicholas Sze | +| [MAPREDUCE-6007](https://issues.apache.org/jira/browse/MAPREDUCE-6007) | Add support to distcp to preserve raw.\* namespace extended attributes | Major | distcp | Charles Lamb | Charles Lamb | +| [MAPREDUCE-5890](https://issues.apache.org/jira/browse/MAPREDUCE-5890) | Support for encrypting Intermediate data and spills in local filesystem | Major | security | Alejandro Abdelnur | Arun Suresh | +| [YARN-2395](https://issues.apache.org/jira/browse/YARN-2395) | FairScheduler: Preemption timeout should be configurable per queue | Major | fairscheduler | Ashwin Shankar | Wei Yan | +| [YARN-2394](https://issues.apache.org/jira/browse/YARN-2394) | FairScheduler: Configure fairSharePreemptionThreshold per queue | Major | fairscheduler | Ashwin Shankar | Wei Yan | +| [YARN-2393](https://issues.apache.org/jira/browse/YARN-2393) | FairScheduler: Add the notion of steady fair share | Major | fairscheduler | Ashwin Shankar | Wei Yan | +| [YARN-2131](https://issues.apache.org/jira/browse/YARN-2131) | Add a way to format the RMStateStore | Major | resourcemanager | Karthik Kambatla | Robert Kanter | +| [YARN-1964](https://issues.apache.org/jira/browse/YARN-1964) | Create Docker analog of the LinuxContainerExecutor in YARN | Major | . | Arun C Murthy | Abin Shahab | +| [YARN-415](https://issues.apache.org/jira/browse/YARN-415) | Capture aggregate memory allocation at the app-level for chargeback | Major | resourcemanager | Kendall Thrapp | Eric Payne | + + +### IMPROVEMENTS: + +| JIRA | Summary | Priority | Component | Reporter | Contributor | +|:---- |:---- | :--- |:---- |:---- |:---- | +| [HADOOP-11216](https://issues.apache.org/jira/browse/HADOOP-11216) | Improve Openssl library finding | Major | security | Yi Liu | Colin Patrick McCabe | +| [HADOOP-11195](https://issues.apache.org/jira/browse/HADOOP-11195) | Move Id-Name mapping in NFS to the hadoop-common area for better maintenance | Major | nfs, security | Yongjun Zhang | Yongjun Zhang | +| [HADOOP-11184](https://issues.apache.org/jira/browse/HADOOP-11184) | Update Hadoop's lz4 to r123 | Major | native | Colin Patrick McCabe | Colin Patrick McCabe | +| [HADOOP-11153](https://issues.apache.org/jira/browse/HADOOP-11153) | Make number of KMS threads configurable | Major | kms | Andrew Wang | Andrew Wang | +| [HADOOP-11111](https://issues.apache.org/jira/browse/HADOOP-11111) | MiniKDC to use locale EN\_US for case conversions | Minor | tools | Steve Loughran | Steve Loughran | +| [HADOOP-11106](https://issues.apache.org/jira/browse/HADOOP-11106) | Document considerations of HAR and Encryption | Minor | documentation | Andrew Wang | Charles Lamb | +| [HADOOP-11101](https://issues.apache.org/jira/browse/HADOOP-11101) | How about inputstream close statement from catch block to finally block in FileContext#copy() ? | Minor | . | skrho | skrho | +| [HADOOP-11068](https://issues.apache.org/jira/browse/HADOOP-11068) | Match hadoop.auth cookie format to jetty output | Major | security | Gregory Chanan | Gregory Chanan | +| [HADOOP-11057](https://issues.apache.org/jira/browse/HADOOP-11057) | checknative command to probe for winutils.exe on windows | Minor | native | Steve Loughran | Xiaoyu Yao | +| [HADOOP-11054](https://issues.apache.org/jira/browse/HADOOP-11054) | Add a KeyProvider instantiation based on a URI | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-11030](https://issues.apache.org/jira/browse/HADOOP-11030) | Define a variable jackson.version instead of using constant at multiple places | Minor | . | Juan Yu | Juan Yu | +| [HADOOP-11021](https://issues.apache.org/jira/browse/HADOOP-11021) | Configurable replication factor in the hadoop archive command | Minor | . | Zhe Zhang | Zhe Zhang | +| [HADOOP-11017](https://issues.apache.org/jira/browse/HADOOP-11017) | KMS delegation token secret manager should be able to use zookeeper as store | Major | security | Alejandro Abdelnur | Arun Suresh | +| [HADOOP-11016](https://issues.apache.org/jira/browse/HADOOP-11016) | KMS should support signing cookies with zookeeper secret manager | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-11015](https://issues.apache.org/jira/browse/HADOOP-11015) | Http server/client utils to propagate and recreate Exceptions from server to client | Major | . | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-11009](https://issues.apache.org/jira/browse/HADOOP-11009) | Add Timestamp Preservation to DistCp | Major | tools/distcp | Gary Steelman | Gary Steelman | +| [HADOOP-11007](https://issues.apache.org/jira/browse/HADOOP-11007) | Reinstate building of ant tasks support | Major | build, fs | Jason Lowe | Jason Lowe | +| [HADOOP-10998](https://issues.apache.org/jira/browse/HADOOP-10998) | Fix bash tab completion code to work | Trivial | scripts | Jim Hester | Jim Hester | +| [HADOOP-10990](https://issues.apache.org/jira/browse/HADOOP-10990) | Add missed NFSv3 request and response classes | Major | nfs | Brandon Li | Brandon Li | +| [HADOOP-10982](https://issues.apache.org/jira/browse/HADOOP-10982) | KMS: Support for multiple Kerberos principals | Major | . | Andrew Wang | Alejandro Abdelnur | +| [HADOOP-10975](https://issues.apache.org/jira/browse/HADOOP-10975) | org.apache.hadoop.util.DataChecksum should support native checksum calculation | Major | performance | James Thomas | James Thomas | +| [HADOOP-10970](https://issues.apache.org/jira/browse/HADOOP-10970) | Cleanup KMS configuration keys | Major | . | Andrew Wang | Andrew Wang | +| [HADOOP-10967](https://issues.apache.org/jira/browse/HADOOP-10967) | Improve DefaultCryptoExtension#generateEncryptedKey performance | Major | security | Yi Liu | Yi Liu | +| [HADOOP-10954](https://issues.apache.org/jira/browse/HADOOP-10954) | Adding site documents of hadoop-tools | Minor | documentation | Masatake Iwasaki | Masatake Iwasaki | +| [HADOOP-10936](https://issues.apache.org/jira/browse/HADOOP-10936) | Change default KeyProvider bitlength to 128 | Major | . | Andrew Wang | Andrew Wang | +| [HADOOP-10922](https://issues.apache.org/jira/browse/HADOOP-10922) | User documentation for CredentialShell | Major | . | Andrew Wang | Larry McCay | +| [HADOOP-10903](https://issues.apache.org/jira/browse/HADOOP-10903) | Enhance hadoop classpath command to expand wildcards or write classpath into jar manifest. | Major | scripts, util | Chris Nauroth | Chris Nauroth | +| [HADOOP-10902](https://issues.apache.org/jira/browse/HADOOP-10902) | Deletion of directories with snapshots will not output reason for trash move failure | Minor | . | Stephen Chu | Stephen Chu | +| [HADOOP-10891](https://issues.apache.org/jira/browse/HADOOP-10891) | Add EncryptedKeyVersion factory method to KeyProviderCryptoExtension | Major | . | Andrew Wang | Andrew Wang | +| [HADOOP-10881](https://issues.apache.org/jira/browse/HADOOP-10881) | Clarify usage of encryption and encrypted encryption key in KeyProviderCryptoExtension | Major | . | Andrew Wang | Andrew Wang | +| [HADOOP-10863](https://issues.apache.org/jira/browse/HADOOP-10863) | KMS should have a blacklist for decrypting EEKs | Major | security | Alejandro Abdelnur | Arun Suresh | +| [HADOOP-10855](https://issues.apache.org/jira/browse/HADOOP-10855) | Allow Text to be read with a known length | Minor | io | Todd Lipcon | Todd Lipcon | +| [HADOOP-10845](https://issues.apache.org/jira/browse/HADOOP-10845) | Add common tests for ACLs in combination with viewfs. | Major | fs, test | Chris Nauroth | Stephen Chu | +| [HADOOP-10841](https://issues.apache.org/jira/browse/HADOOP-10841) | EncryptedKeyVersion should have a key name property | Major | security | Alejandro Abdelnur | Arun Suresh | +| [HADOOP-10839](https://issues.apache.org/jira/browse/HADOOP-10839) | Add unregisterSource() to MetricsSystem API | Major | metrics | shanyu zhao | shanyu zhao | +| [HADOOP-10838](https://issues.apache.org/jira/browse/HADOOP-10838) | Byte array native checksumming | Major | performance | James Thomas | James Thomas | +| [HADOOP-10835](https://issues.apache.org/jira/browse/HADOOP-10835) | Implement HTTP proxyuser support in HTTP authentication client/server libraries | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-10833](https://issues.apache.org/jira/browse/HADOOP-10833) | Remove unused cache in UserProvider | Major | security | Benoy Antony | Benoy Antony | +| [HADOOP-10826](https://issues.apache.org/jira/browse/HADOOP-10826) | Iteration on KeyProviderFactory.serviceLoader is thread-unsafe | Major | security | Benoy Antony | Benoy Antony | +| [HADOOP-10824](https://issues.apache.org/jira/browse/HADOOP-10824) | Refactor KMSACLs to avoid locking | Major | security | Benoy Antony | Benoy Antony | +| [HADOOP-10817](https://issues.apache.org/jira/browse/HADOOP-10817) | ProxyUsers configuration should support configurable prefixes | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-10815](https://issues.apache.org/jira/browse/HADOOP-10815) | Implement Windows equivalent of mlock. | Major | native | Chris Nauroth | Chris Nauroth | +| [HADOOP-10812](https://issues.apache.org/jira/browse/HADOOP-10812) | Delegate KeyProviderExtension#toString to underlying KeyProvider | Trivial | . | Andrew Wang | Andrew Wang | +| [HADOOP-10808](https://issues.apache.org/jira/browse/HADOOP-10808) | Remove unused native code for munlock. | Minor | native | Chris Nauroth | Chris Nauroth | +| [HADOOP-10793](https://issues.apache.org/jira/browse/HADOOP-10793) | KeyShell args should use single-dash style | Major | security | Mike Yoder | Andrew Wang | +| [HADOOP-10791](https://issues.apache.org/jira/browse/HADOOP-10791) | AuthenticationFilter should support externalizing the secret for signing and provide rotation support | Major | security | Alejandro Abdelnur | Robert Kanter | +| [HADOOP-10771](https://issues.apache.org/jira/browse/HADOOP-10771) | Refactor HTTP delegation support out of httpfs to common | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-10770](https://issues.apache.org/jira/browse/HADOOP-10770) | KMS add delegation token support | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-10769](https://issues.apache.org/jira/browse/HADOOP-10769) | Create KeyProvider extension to handle delegation tokens | Major | security | Alejandro Abdelnur | Arun Suresh | +| [HADOOP-10758](https://issues.apache.org/jira/browse/HADOOP-10758) | KMS: add ACLs on per key basis. | Major | security | Alejandro Abdelnur | Arun Suresh | +| [HADOOP-10757](https://issues.apache.org/jira/browse/HADOOP-10757) | KeyProvider KeyVersion should provide the key name | Major | security | Alejandro Abdelnur | Arun Suresh | +| [HADOOP-10756](https://issues.apache.org/jira/browse/HADOOP-10756) | KMS audit log should consolidate successful similar requests | Major | security | Alejandro Abdelnur | Arun Suresh | +| [HADOOP-10755](https://issues.apache.org/jira/browse/HADOOP-10755) | Support negative caching of user-group mapping | Major | security | Andrew Wang | Lei (Eddy) Xu | +| [HADOOP-10750](https://issues.apache.org/jira/browse/HADOOP-10750) | KMSKeyProviderCache should be in hadoop-common | Major | security | Alejandro Abdelnur | Arun Suresh | +| [HADOOP-10736](https://issues.apache.org/jira/browse/HADOOP-10736) | Add key attributes to the key shell | Major | security | Mike Yoder | Mike Yoder | +| [HADOOP-10731](https://issues.apache.org/jira/browse/HADOOP-10731) | Remove @date JavaDoc comment in ProgramDriver class | Trivial | documentation | Henry Saputra | Henry Saputra | +| [HADOOP-10720](https://issues.apache.org/jira/browse/HADOOP-10720) | KMS: Implement generateEncryptedKey and decryptEncryptedKey in the REST API | Major | security | Alejandro Abdelnur | Arun Suresh | +| [HADOOP-10698](https://issues.apache.org/jira/browse/HADOOP-10698) | KMS, add proxyuser support | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-10696](https://issues.apache.org/jira/browse/HADOOP-10696) | Add optional attributes to KeyProvider Options and Metadata | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-10695](https://issues.apache.org/jira/browse/HADOOP-10695) | KMSClientProvider should respect a configurable timeout. | Major | . | Andrew Wang | Mike Yoder | +| [HADOOP-10675](https://issues.apache.org/jira/browse/HADOOP-10675) | Add server-side encryption functionality to s3a | Major | fs/s3 | David S. Wang | David S. Wang | +| [HADOOP-10620](https://issues.apache.org/jira/browse/HADOOP-10620) | /docs/current doesn't point to the latest version 2.4.0 | Major | documentation | Jacek Laskowski | | +| [HADOOP-10610](https://issues.apache.org/jira/browse/HADOOP-10610) | Upgrade S3n fs.s3.buffer.dir to support multi directories | Minor | fs/s3 | Ted Malaska | Ted Malaska | +| [HADOOP-10433](https://issues.apache.org/jira/browse/HADOOP-10433) | Key Management Server based on KeyProvider API | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-10432](https://issues.apache.org/jira/browse/HADOOP-10432) | Refactor SSLFactory to expose static method to determine HostnameVerifier | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-10431](https://issues.apache.org/jira/browse/HADOOP-10431) | Change visibility of KeyStore.Options getter methods to public | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-10430](https://issues.apache.org/jira/browse/HADOOP-10430) | KeyProvider Metadata should have an optional description, there should be a method to retrieve the metadata from all keys | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-10429](https://issues.apache.org/jira/browse/HADOOP-10429) | KeyStores should have methods to generate the materials themselves, KeyShell should use them | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-10428](https://issues.apache.org/jira/browse/HADOOP-10428) | JavaKeyStoreProvider should accept keystore password via configuration falling back to ENV VAR | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-10427](https://issues.apache.org/jira/browse/HADOOP-10427) | KeyProvider implementations should be thread safe | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-10373](https://issues.apache.org/jira/browse/HADOOP-10373) | create tools/hadoop-amazon for aws/EMR support | Major | fs/s3 | Steve Loughran | Steve Loughran | +| [HADOOP-10335](https://issues.apache.org/jira/browse/HADOOP-10335) | An ip whilelist based implementation to resolve Sasl properties per connection | Major | . | Benoy Antony | Benoy Antony | +| [HADOOP-10231](https://issues.apache.org/jira/browse/HADOOP-10231) | Add some components in Native Libraries document | Minor | documentation | Akira AJISAKA | Akira AJISAKA | +| [HADOOP-9540](https://issues.apache.org/jira/browse/HADOOP-9540) | Expose the InMemoryS3 and S3N FilesystemStores implementations for Unit testing. | Minor | fs/s3, test | Hari | | +| [HADOOP-9457](https://issues.apache.org/jira/browse/HADOOP-9457) | add an SCM-ignored XML filename to keep secrets in (auth-keys.xml?) | Minor | build | Steve Loughran | | +| [HADOOP-8896](https://issues.apache.org/jira/browse/HADOOP-8896) | Javadoc points to Wrong Reader and Writer classes in SequenceFile | Trivial | documentation, io | Timothy Mann | Ray Chiang | +| [HADOOP-8815](https://issues.apache.org/jira/browse/HADOOP-8815) | RandomDatum overrides equals(Object) but no hashCode() | Minor | test | Brandon Li | Brandon Li | +| [HADOOP-8069](https://issues.apache.org/jira/browse/HADOOP-8069) | Enable TCP\_NODELAY by default for IPC | Major | ipc | Todd Lipcon | Todd Lipcon | +| [HADOOP-7664](https://issues.apache.org/jira/browse/HADOOP-7664) | o.a.h.conf.Configuration complains of overriding final parameter even if the value with which its attempting to override is the same. | Minor | conf | Ravi Prakash | Ravi Prakash | +| [HDFS-7313](https://issues.apache.org/jira/browse/HDFS-7313) | Support optional configuration of AES cipher suite on DataTransferProtocol. | Major | datanode, hdfs-client, security | Chris Nauroth | Chris Nauroth | +| [HDFS-7276](https://issues.apache.org/jira/browse/HDFS-7276) | Limit the number of byte arrays used by DFSOutputStream | Major | hdfs-client | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-7260](https://issues.apache.org/jira/browse/HDFS-7260) | Make DFSOutputStream.MAX\_PACKETS configurable | Minor | hdfs-client | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-7233](https://issues.apache.org/jira/browse/HDFS-7233) | NN logs unnecessary org.apache.hadoop.hdfs.protocol.UnresolvedPathException | Major | namenode | Rushabh S Shah | Rushabh S Shah | +| [HDFS-7230](https://issues.apache.org/jira/browse/HDFS-7230) | Add rolling downgrade documentation | Major | documentation | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-7228](https://issues.apache.org/jira/browse/HDFS-7228) | Add an SSD policy into the default BlockStoragePolicySuite | Major | . | Jing Zhao | Jing Zhao | +| [HDFS-7217](https://issues.apache.org/jira/browse/HDFS-7217) | Better batching of IBRs | Major | . | Kihwal Lee | Kihwal Lee | +| [HDFS-7215](https://issues.apache.org/jira/browse/HDFS-7215) | Add JvmPauseMonitor to NFS gateway | Minor | nfs | Brandon Li | Brandon Li | +| [HDFS-7195](https://issues.apache.org/jira/browse/HDFS-7195) | Update user doc of secure mode about Datanodes don't require root or jsvc | Major | documentation, security | Yi Liu | Chris Nauroth | +| [HDFS-7158](https://issues.apache.org/jira/browse/HDFS-7158) | Reduce the memory usage of WebImageViewer | Major | . | Haohui Mai | Haohui Mai | +| [HDFS-7153](https://issues.apache.org/jira/browse/HDFS-7153) | Add storagePolicy to NN edit log during file creation | Major | namenode | Arpit Agarwal | Arpit Agarwal | +| [HDFS-7128](https://issues.apache.org/jira/browse/HDFS-7128) | Decommission slows way down when it gets towards the end | Major | namenode | Ming Ma | Ming Ma | +| [HDFS-7093](https://issues.apache.org/jira/browse/HDFS-7093) | Add config key to restrict setStoragePolicy | Major | namenode | Arpit Agarwal | Arpit Agarwal | +| [HDFS-7059](https://issues.apache.org/jira/browse/HDFS-7059) | HAadmin transtionToActive with forceActive option can show confusing message. | Minor | . | Rushabh S Shah | Rushabh S Shah | +| [HDFS-6943](https://issues.apache.org/jira/browse/HDFS-6943) | Improve NN allocateBlock log to include replicas' datanode IPs | Minor | namenode | Ming Ma | Ming Ma | +| [HDFS-6899](https://issues.apache.org/jira/browse/HDFS-6899) | Allow changing MiniDFSCluster volumes per DN and capacity per volume | Major | datanode, test | Arpit Agarwal | Arpit Agarwal | +| [HDFS-6886](https://issues.apache.org/jira/browse/HDFS-6886) | Use single editlog record for creating file + overwrite. | Critical | namenode | Yi Liu | Yi Liu | +| [HDFS-6858](https://issues.apache.org/jira/browse/HDFS-6858) | Allow dfs.data.transfer.saslproperties.resolver.class default to hadoop.security.saslproperties.resolver.class | Minor | security | Benoy Antony | Benoy Antony | +| [HDFS-6850](https://issues.apache.org/jira/browse/HDFS-6850) | Move NFS out of order write unit tests into TestWrites class | Minor | nfs | Zhe Zhang | Zhe Zhang | +| [HDFS-6849](https://issues.apache.org/jira/browse/HDFS-6849) | Replace HttpFS custom proxyuser handling with common implementation | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HDFS-6837](https://issues.apache.org/jira/browse/HDFS-6837) | Code cleanup for Balancer and Dispatcher | Minor | balancer & mover | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-6836](https://issues.apache.org/jira/browse/HDFS-6836) | HDFS INFO logging is verbose & uses file appenders | Major | datanode | Gopal V | Nathan Yao | +| [HDFS-6828](https://issues.apache.org/jira/browse/HDFS-6828) | Separate block replica dispatching from Balancer | Major | balancer & mover | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-6812](https://issues.apache.org/jira/browse/HDFS-6812) | Remove addBlock and replaceBlock from DatanodeDescriptor | Minor | namenode | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-6809](https://issues.apache.org/jira/browse/HDFS-6809) | Move some Balancer's inner classes to standalone classes | Minor | balancer & mover | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-6800](https://issues.apache.org/jira/browse/HDFS-6800) | Support Datanode layout changes with rolling upgrade | Major | datanode | Colin Patrick McCabe | James Thomas | +| [HDFS-6798](https://issues.apache.org/jira/browse/HDFS-6798) | Add test case for incorrect data node condition during balancing | Major | balancer & mover | Benoy Antony | Benoy Antony | +| [HDFS-6796](https://issues.apache.org/jira/browse/HDFS-6796) | Improving the argument check during balancer command line parsing | Minor | balancer & mover | Benoy Antony | Benoy Antony | +| [HDFS-6794](https://issues.apache.org/jira/browse/HDFS-6794) | Update BlockManager methods to use DatanodeStorageInfo where possible | Minor | namenode | Arpit Agarwal | Arpit Agarwal | +| [HDFS-6781](https://issues.apache.org/jira/browse/HDFS-6781) | Separate HDFS commands from CommandsManual.apt.vm | Major | documentation | Akira AJISAKA | Akira AJISAKA | +| [HDFS-6779](https://issues.apache.org/jira/browse/HDFS-6779) | Add missing version subcommand for hdfs | Minor | scripts | Allen Wittenauer | Sasaki Toru | +| [HDFS-6773](https://issues.apache.org/jira/browse/HDFS-6773) | MiniDFSCluster should skip edit log fsync by default | Major | namenode | Daryn Sharp | Stephen Chu | +| [HDFS-6772](https://issues.apache.org/jira/browse/HDFS-6772) | Get DN storages out of blockContentsStale state faster after NN restarts | Major | . | Ming Ma | Ming Ma | +| [HDFS-6758](https://issues.apache.org/jira/browse/HDFS-6758) | block writer should pass the expected block size to DataXceiverServer | Major | datanode, hdfs-client | Arpit Agarwal | Arpit Agarwal | +| [HDFS-6755](https://issues.apache.org/jira/browse/HDFS-6755) | There is an unnecessary sleep in the code path where DFSOutputStream#close gives up its attempt to contact the namenode | Major | . | Mit Desai | Mit Desai | +| [HDFS-6739](https://issues.apache.org/jira/browse/HDFS-6739) | Add getDatanodeStorageReport to ClientProtocol | Major | hdfs-client, namenode | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-6701](https://issues.apache.org/jira/browse/HDFS-6701) | Make seed optional in NetworkTopology#sortByDistance | Major | namenode | Ashwin Shankar | Ashwin Shankar | +| [HDFS-6700](https://issues.apache.org/jira/browse/HDFS-6700) | BlockPlacementPolicy shoud choose storage but not datanode for deletion | Minor | namenode | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-6690](https://issues.apache.org/jira/browse/HDFS-6690) | Deduplicate xattr names in memory | Major | namenode | Andrew Wang | Andrew Wang | +| [HDFS-6685](https://issues.apache.org/jira/browse/HDFS-6685) | Balancer should preserve storage type of replicas | Major | balancer & mover | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-6655](https://issues.apache.org/jira/browse/HDFS-6655) | Add 'header banner' to 'explorer.html' also in Namenode UI | Major | . | Vinayakumar B | Vinayakumar B | +| [HDFS-6643](https://issues.apache.org/jira/browse/HDFS-6643) | Refactor INodeFile.HeaderFormat and INodeWithAdditionalFields.PermissionStatusFormat | Minor | namenode | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-6627](https://issues.apache.org/jira/browse/HDFS-6627) | Rename DataNode#checkWriteAccess to checkReadAccess. | Major | datanode | Liang Xie | Liang Xie | +| [HDFS-6613](https://issues.apache.org/jira/browse/HDFS-6613) | Improve logging in caching classes | Minor | caching | Andrew Wang | Andrew Wang | +| [HDFS-6606](https://issues.apache.org/jira/browse/HDFS-6606) | Optimize HDFS Encrypted Transport performance | Major | datanode, hdfs-client, security | Yi Liu | Yi Liu | +| [HDFS-6597](https://issues.apache.org/jira/browse/HDFS-6597) | Add a new option to NN upgrade to terminate the process after upgrade on NN is completed | Major | namenode | Danilo Vunjak | Danilo Vunjak | +| [HDFS-6570](https://issues.apache.org/jira/browse/HDFS-6570) | add api that enables checking if a user has certain permissions on a file | Major | hdfs-client, namenode, webhdfs | Thejas M Nair | Jitendra Nath Pandey | +| [HDFS-6519](https://issues.apache.org/jira/browse/HDFS-6519) | Document oiv\_legacy command | Major | documentation | Akira AJISAKA | Akira AJISAKA | +| [HDFS-6511](https://issues.apache.org/jira/browse/HDFS-6511) | BlockManager#computeInvalidateWork() could do nothing | Minor | . | Juan Yu | Juan Yu | +| [HDFS-6482](https://issues.apache.org/jira/browse/HDFS-6482) | Use block ID-based block layout on datanodes | Major | datanode | James Thomas | James Thomas | +| [HDFS-6441](https://issues.apache.org/jira/browse/HDFS-6441) | Add ability to exclude/include specific datanodes while balancing | Major | balancer & mover | Benoy Antony | Benoy Antony | +| [HDFS-6188](https://issues.apache.org/jira/browse/HDFS-6188) | An ip whitelist based implementation of TrustedChannelResolver | Major | security | Benoy Antony | Benoy Antony | +| [HDFS-5202](https://issues.apache.org/jira/browse/HDFS-5202) | Support Centralized Cache Management on Windows. | Major | datanode | Colin Patrick McCabe | Chris Nauroth | +| [HDFS-5182](https://issues.apache.org/jira/browse/HDFS-5182) | BlockReaderLocal must allow zero-copy reads only when the DN believes it's valid | Major | hdfs-client | Colin Patrick McCabe | Colin Patrick McCabe | +| [HDFS-4486](https://issues.apache.org/jira/browse/HDFS-4486) | Add log category for long-running DFSClient notices | Minor | . | Todd Lipcon | Zhe Zhang | +| [HDFS-4120](https://issues.apache.org/jira/browse/HDFS-4120) | Add a new "-skipSharedEditsCheck" option for BootstrapStandby | Minor | ha, namenode | Liang Xie | Rakesh R | +| [HDFS-3851](https://issues.apache.org/jira/browse/HDFS-3851) | Make DFSOuputSteram$Packet default constructor reuse the other constructor | Trivial | hdfs-client | Jing Zhao | Jing Zhao | +| [HDFS-3528](https://issues.apache.org/jira/browse/HDFS-3528) | Use native CRC32 in DFS write path | Major | datanode, hdfs-client, performance | Todd Lipcon | James Thomas | +| [HDFS-2856](https://issues.apache.org/jira/browse/HDFS-2856) | Fix block protocol so that Datanodes don't require root or jsvc | Major | datanode, security | Owen O'Malley | Chris Nauroth | +| [HDFS-573](https://issues.apache.org/jira/browse/HDFS-573) | Porting libhdfs to Windows | Major | libhdfs | Ziliang Guo | Chris Nauroth | +| [MAPREDUCE-6086](https://issues.apache.org/jira/browse/MAPREDUCE-6086) | mapreduce.job.credentials.binary should allow all URIs | Major | security | zhihai xu | zhihai xu | +| [MAPREDUCE-6072](https://issues.apache.org/jira/browse/MAPREDUCE-6072) | Remove INSTALL document | Minor | documentation | Akira AJISAKA | Akira AJISAKA | +| [MAPREDUCE-6071](https://issues.apache.org/jira/browse/MAPREDUCE-6071) | JobImpl#makeUberDecision doesn't log that Uber mode is disabled because of too much CPUs | Trivial | client | Tsuyoshi Ozawa | Tsuyoshi Ozawa | +| [MAPREDUCE-6070](https://issues.apache.org/jira/browse/MAPREDUCE-6070) | yarn.app.am.resource.mb/cpu-vcores affects uber mode but is not documented | Trivial | documentation | Tsuyoshi Ozawa | Tsuyoshi Ozawa | +| [MAPREDUCE-6024](https://issues.apache.org/jira/browse/MAPREDUCE-6024) | java.net.SocketTimeoutException in Fetcher caused jobs stuck for more than 1 hour | Critical | mr-am, task | zhaoyunjiong | zhaoyunjiong | +| [MAPREDUCE-5971](https://issues.apache.org/jira/browse/MAPREDUCE-5971) | Move the default options for distcp -p to DistCpOptionSwitch | Trivial | distcp | Charles Lamb | Charles Lamb | +| [MAPREDUCE-5970](https://issues.apache.org/jira/browse/MAPREDUCE-5970) | Provide a boolean switch to enable MR-AM profiling | Minor | applicationmaster, client | Gera Shegalov | Gera Shegalov | +| [MAPREDUCE-5943](https://issues.apache.org/jira/browse/MAPREDUCE-5943) | Separate mapred commands from CommandsManual.apt.vm | Minor | documentation | Akira AJISAKA | Akira AJISAKA | +| [MAPREDUCE-5906](https://issues.apache.org/jira/browse/MAPREDUCE-5906) | Inconsistent configuration in property "mapreduce.reduce.shuffle.input.buffer.percent" | Minor | . | Akira AJISAKA | Akira AJISAKA | +| [MAPREDUCE-5130](https://issues.apache.org/jira/browse/MAPREDUCE-5130) | Add missing job config options to mapred-default.xml | Major | documentation | Sandy Ryza | Ray Chiang | +| [MAPREDUCE-4791](https://issues.apache.org/jira/browse/MAPREDUCE-4791) | Javadoc for KeyValueTextInputFormat should include default separator and how to change it | Minor | documentation | Matt Lavin | Akira AJISAKA | +| [MAPREDUCE-883](https://issues.apache.org/jira/browse/MAPREDUCE-883) | harchive: Document how to unarchive | Minor | documentation, harchive | Koji Noguchi | Akira AJISAKA | +| [YARN-2627](https://issues.apache.org/jira/browse/YARN-2627) | Add logs when attemptFailuresValidityInterval is enabled | Major | . | Xuan Gong | Xuan Gong | +| [YARN-2577](https://issues.apache.org/jira/browse/YARN-2577) | Clarify ACL delimiter and how to configure ACL groups only | Trivial | documentation, fairscheduler | Miklos Christine | Miklos Christine | +| [YARN-2539](https://issues.apache.org/jira/browse/YARN-2539) | FairScheduler: Set the default value for maxAMShare to 0.5 | Minor | . | Wei Yan | Wei Yan | +| [YARN-2531](https://issues.apache.org/jira/browse/YARN-2531) | CGroups - Admins should be allowed to enforce strict cpu limits | Major | . | Varun Vasudev | Varun Vasudev | +| [YARN-2448](https://issues.apache.org/jira/browse/YARN-2448) | RM should expose the resource types considered during scheduling when AMs register | Major | . | Varun Vasudev | Varun Vasudev | +| [YARN-2411](https://issues.apache.org/jira/browse/YARN-2411) | [Capacity Scheduler] support simple user and group mappings to queues | Major | capacityscheduler | Ram Venkatesh | Ram Venkatesh | +| [YARN-2399](https://issues.apache.org/jira/browse/YARN-2399) | FairScheduler: Merge AppSchedulable and FSSchedulerApp into FSAppAttempt | Major | fairscheduler | Karthik Kambatla | Karthik Kambatla | +| [YARN-2377](https://issues.apache.org/jira/browse/YARN-2377) | Localization exception stack traces are not passed as diagnostic info | Major | nodemanager | Gera Shegalov | Gera Shegalov | +| [YARN-2372](https://issues.apache.org/jira/browse/YARN-2372) | There are Chinese Characters in the FairScheduler's document | Minor | documentation | Fengdong Yu | Fengdong Yu | +| [YARN-2361](https://issues.apache.org/jira/browse/YARN-2361) | RMAppAttempt state machine entries for KILLED state has duplicate event entries | Trivial | resourcemanager | zhihai xu | zhihai xu | +| [YARN-2352](https://issues.apache.org/jira/browse/YARN-2352) | FairScheduler: Collect metrics on duration of critical methods that affect performance | Major | scheduler | Karthik Kambatla | Karthik Kambatla | +| [YARN-2343](https://issues.apache.org/jira/browse/YARN-2343) | Improve error message on token expire exception | Trivial | . | Li Lu | Li Lu | +| [YARN-2337](https://issues.apache.org/jira/browse/YARN-2337) | ResourceManager sets ClientRMService in RMContext multiple times | Trivial | resourcemanager | zhihai xu | zhihai xu | +| [YARN-2323](https://issues.apache.org/jira/browse/YARN-2323) | FairShareComparator creates too many Resource objects | Minor | fairscheduler | Hong Zhiguo | Hong Zhiguo | +| [YARN-2294](https://issues.apache.org/jira/browse/YARN-2294) | Update sample program and documentations for writing YARN Application | Major | . | Li Lu | | +| [YARN-2274](https://issues.apache.org/jira/browse/YARN-2274) | FairScheduler: Add debug information about cluster capacity, availability and reservations | Trivial | fairscheduler | Karthik Kambatla | Karthik Kambatla | +| [YARN-2214](https://issues.apache.org/jira/browse/YARN-2214) | FairScheduler: preemptContainerPreCheck() in FSParentQueue delays convergence towards fairness | Major | scheduler | Ashwin Shankar | Ashwin Shankar | +| [YARN-2209](https://issues.apache.org/jira/browse/YARN-2209) | Replace AM resync/shutdown command with corresponding exceptions | Major | . | Jian He | Jian He | +| [YARN-2198](https://issues.apache.org/jira/browse/YARN-2198) | Remove the need to run NodeManager as privileged account for Windows Secure Container Executor | Major | . | Remus Rusanu | Remus Rusanu | +| [YARN-2197](https://issues.apache.org/jira/browse/YARN-2197) | Add a link to YARN CHANGES.txt in the left side of doc | Minor | documentation | Akira AJISAKA | Akira AJISAKA | +| [YARN-1994](https://issues.apache.org/jira/browse/YARN-1994) | Expose YARN/MR endpoints on multiple interfaces | Major | nodemanager, resourcemanager, webapp | Arpit Agarwal | Craig Welch | +| [YARN-1954](https://issues.apache.org/jira/browse/YARN-1954) | Add waitFor to AMRMClient(Async) | Major | client | Zhijie Shen | Tsuyoshi Ozawa | +| [YARN-1918](https://issues.apache.org/jira/browse/YARN-1918) | Typo in description and error message for 'yarn.resourcemanager.cluster-id' | Trivial | . | Devaraj K | Anandha L Ranganathan | +| [YARN-1769](https://issues.apache.org/jira/browse/YARN-1769) | CapacityScheduler: Improve reservations | Major | capacityscheduler | Thomas Graves | Thomas Graves | +| [YARN-666](https://issues.apache.org/jira/browse/YARN-666) | [Umbrella] Support rolling upgrades in YARN | Major | . | Siddharth Seth | | + + +### BUG FIXES: + +| JIRA | Summary | Priority | Component | Reporter | Contributor | +|:---- |:---- | :--- |:---- |:---- |:---- | +| [HADOOP-11286](https://issues.apache.org/jira/browse/HADOOP-11286) | Map/Reduce dangerously adds Guava @Beta class to CryptoUtils | Blocker | . | Christopher Tubbs | | +| [HADOOP-11282](https://issues.apache.org/jira/browse/HADOOP-11282) | Skip NFS TestShellBasedIdMapping tests that are irrelevant on Windows. | Trivial | test | Chris Nauroth | Chris Nauroth | +| [HADOOP-11280](https://issues.apache.org/jira/browse/HADOOP-11280) | TestWinUtils#testChmod fails after removal of NO\_PROPAGATE\_INHERIT\_ACE. | Trivial | native, test | Chris Nauroth | Chris Nauroth | +| [HADOOP-11265](https://issues.apache.org/jira/browse/HADOOP-11265) | Credential and Key Shell Commands not available on Windows | Major | scripts | Larry McCay | Larry McCay | +| [HADOOP-11260](https://issues.apache.org/jira/browse/HADOOP-11260) | Patch up Jetty to disable SSLv3 | Blocker | security | Karthik Kambatla | Mike Yoder | +| [HADOOP-11254](https://issues.apache.org/jira/browse/HADOOP-11254) | Promoting AccessControlList to be public | Major | . | Zhijie Shen | Zhijie Shen | +| [HADOOP-11250](https://issues.apache.org/jira/browse/HADOOP-11250) | fix endmacro of set\_find\_shared\_library\_without\_version in CMakeLists | Minor | build | Yi Liu | Yi Liu | +| [HADOOP-11247](https://issues.apache.org/jira/browse/HADOOP-11247) | Fix a couple javac warnings in NFS | Major | nfs | Brandon Li | Brandon Li | +| [HADOOP-11243](https://issues.apache.org/jira/browse/HADOOP-11243) | SSLFactory shouldn't allow SSLv3 | Blocker | . | Wei Yan | Wei Yan | +| [HADOOP-11233](https://issues.apache.org/jira/browse/HADOOP-11233) | hadoop.security.kms.client.encrypted.key.cache.expiry property spelled wrong in core-default | Minor | conf | Steve Loughran | Stephen Chu | +| [HADOOP-11228](https://issues.apache.org/jira/browse/HADOOP-11228) | winutils task: unsecure path should not call AddNodeManagerAndUserACEsToObject | Major | . | Remus Rusanu | Remus Rusanu | +| [HADOOP-11221](https://issues.apache.org/jira/browse/HADOOP-11221) | JAVA specification for hashcode does not enforce it to be non-negative, but IdentityHashStore assumes System.identityHashCode() is non-negative | Major | util | Jinghui Wang | Jinghui Wang | +| [HADOOP-11217](https://issues.apache.org/jira/browse/HADOOP-11217) | Disable SSLv3 in KMS | Blocker | kms | Robert Kanter | Robert Kanter | +| [HADOOP-11207](https://issues.apache.org/jira/browse/HADOOP-11207) | DelegationTokenAuthenticationHandler needs to support DT operations for proxy user | Major | security | Zhijie Shen | Zhijie Shen | +| [HADOOP-11198](https://issues.apache.org/jira/browse/HADOOP-11198) | Fix typo in javadoc for FileSystem#listStatus() | Minor | . | Ted Yu | Li Lu | +| [HADOOP-11194](https://issues.apache.org/jira/browse/HADOOP-11194) | Ignore .keep files | Major | . | Karthik Kambatla | Karthik Kambatla | +| [HADOOP-11193](https://issues.apache.org/jira/browse/HADOOP-11193) | Fix uninitialized variables in NativeIO.c | Major | native | Xiaoyu Yao | Xiaoyu Yao | +| [HADOOP-11182](https://issues.apache.org/jira/browse/HADOOP-11182) | GraphiteSink emits wrong timestamps | Major | . | Sascha Coenen | Ravi Prakash | +| [HADOOP-11181](https://issues.apache.org/jira/browse/HADOOP-11181) | o.a.h.security.token.delegation.DelegationTokenManager should be more generalized to handle other DelegationTokenIdentifier | Major | security | Zhijie Shen | Zhijie Shen | +| [HADOOP-11179](https://issues.apache.org/jira/browse/HADOOP-11179) | Tarball as local resource type archive fails to localize on Windows | Major | . | Hitesh Shah | Craig Welch | +| [HADOOP-11178](https://issues.apache.org/jira/browse/HADOOP-11178) | Fix findbugs exclude file | Minor | build | Arun Suresh | Arun Suresh | +| [HADOOP-11176](https://issues.apache.org/jira/browse/HADOOP-11176) | KMSClientProvider authentication fails when both currentUgi and loginUgi are a proxied user | Major | . | Arun Suresh | Arun Suresh | +| [HADOOP-11175](https://issues.apache.org/jira/browse/HADOOP-11175) | Fix several issues of hadoop security configuration in user doc. | Trivial | documentation, security | Yi Liu | Yi Liu | +| [HADOOP-11174](https://issues.apache.org/jira/browse/HADOOP-11174) | Delegation token for KMS should only be got once if it already exists | Major | kms, security | Yi Liu | Yi Liu | +| [HADOOP-11170](https://issues.apache.org/jira/browse/HADOOP-11170) | ZKDelegationTokenSecretManager fails to renewToken created by a peer | Major | . | Arun Suresh | Arun Suresh | +| [HADOOP-11169](https://issues.apache.org/jira/browse/HADOOP-11169) | Fix DelegationTokenAuthenticatedURL to pass the connection Configurator to the authenticator | Major | . | Arun Suresh | Arun Suresh | +| [HADOOP-11168](https://issues.apache.org/jira/browse/HADOOP-11168) | Remove duplicated entry "dfs.webhdfs.enabled" in the user doc | Trivial | documentation | Yi Liu | Yi Liu | +| [HADOOP-11163](https://issues.apache.org/jira/browse/HADOOP-11163) | MetricsSystemImpl may miss a registered source | Minor | metrics | Chuan Liu | Chuan Liu | +| [HADOOP-11161](https://issues.apache.org/jira/browse/HADOOP-11161) | Expose close method in KeyProvider to give clients of Provider implementations a hook to release resources | Major | . | Arun Suresh | Arun Suresh | +| [HADOOP-11160](https://issues.apache.org/jira/browse/HADOOP-11160) | Fix typo in nfs3 server duplicate entry reporting | Trivial | nfs | Charles Lamb | Charles Lamb | +| [HADOOP-11154](https://issues.apache.org/jira/browse/HADOOP-11154) | Update BUILDING.txt to state that CMake 3.0 or newer is required on Mac. | Trivial | documentation, native | Chris Nauroth | Chris Nauroth | +| [HADOOP-11151](https://issues.apache.org/jira/browse/HADOOP-11151) | Automatically refresh auth token and retry on auth failure | Major | security | zhubin | Arun Suresh | +| [HADOOP-11145](https://issues.apache.org/jira/browse/HADOOP-11145) | TestFairCallQueue fails | Major | test | Akira AJISAKA | Akira AJISAKA | +| [HADOOP-11143](https://issues.apache.org/jira/browse/HADOOP-11143) | NetUtils.wrapException loses inner stack trace on BindException | Minor | net | Steve Loughran | Steve Loughran | +| [HADOOP-11140](https://issues.apache.org/jira/browse/HADOOP-11140) | hadoop-aws only need test-scoped dependency on hadoop-common's tests jar | Major | . | Juan Yu | Juan Yu | +| [HADOOP-11133](https://issues.apache.org/jira/browse/HADOOP-11133) | Should trim the content of keystore password file for JavaKeyStoreProvider | Minor | security | zhubin | Yi Liu | +| [HADOOP-11130](https://issues.apache.org/jira/browse/HADOOP-11130) | NFS updateMaps OS check is reversed | Major | nfs | Allen Wittenauer | Brandon Li | +| [HADOOP-11122](https://issues.apache.org/jira/browse/HADOOP-11122) | Fix findbugs in ZK DelegationTokenSecretManagers | Blocker | . | Karthik Kambatla | Arun Suresh | +| [HADOOP-11113](https://issues.apache.org/jira/browse/HADOOP-11113) | Namenode not able to reconnect to KMS after KMS restart | Major | security | Arun Suresh | Arun Suresh | +| [HADOOP-11112](https://issues.apache.org/jira/browse/HADOOP-11112) | TestKMSWithZK does not use KEY\_PROVIDER\_URI | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-11110](https://issues.apache.org/jira/browse/HADOOP-11110) | JavaKeystoreProvider should not report a key as created if it was not flushed to the backing file | Major | . | Andrew Wang | Arun Suresh | +| [HADOOP-11109](https://issues.apache.org/jira/browse/HADOOP-11109) | Site build is broken | Major | . | Jian He | Jian He | +| [HADOOP-11105](https://issues.apache.org/jira/browse/HADOOP-11105) | MetricsSystemImpl could leak memory in registered callbacks | Major | metrics | Chuan Liu | Chuan Liu | +| [HADOOP-11099](https://issues.apache.org/jira/browse/HADOOP-11099) | KMS return HTTP UNAUTHORIZED 401 on ACL failure | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-11097](https://issues.apache.org/jira/browse/HADOOP-11097) | kms docs say proxyusers, not proxyuser for config params | Trivial | documentation | Charles Lamb | Charles Lamb | +| [HADOOP-11096](https://issues.apache.org/jira/browse/HADOOP-11096) | KMS: KeyAuthorizationKeyProvider should verify the keyversion belongs to the keyname on decrypt | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-11091](https://issues.apache.org/jira/browse/HADOOP-11091) | Eliminate old configuration parameter names from s3a | Minor | fs/s3 | David S. Wang | David S. Wang | +| [HADOOP-11085](https://issues.apache.org/jira/browse/HADOOP-11085) | Excessive logging by org.apache.hadoop.util.Progress when value is NaN | Major | . | Mit Desai | Mit Desai | +| [HADOOP-11083](https://issues.apache.org/jira/browse/HADOOP-11083) | After refactoring of HTTP proxyuser to common, doAs param is case sensitive | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-11077](https://issues.apache.org/jira/browse/HADOOP-11077) | NPE if hosts not specified in ProxyUsers | Major | security | Gregory Chanan | Gregory Chanan | +| [HADOOP-11069](https://issues.apache.org/jira/browse/HADOOP-11069) | KMSClientProvider should use getAuthenticationMethod() to determine if in proxyuser mode or not | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-11067](https://issues.apache.org/jira/browse/HADOOP-11067) | warning message 'ssl.client.truststore.location has not been set' gets printed for hftp command | Major | . | Yesha Vora | Xiaoyu Yao | +| [HADOOP-11064](https://issues.apache.org/jira/browse/HADOOP-11064) | UnsatisifedLinkError with hadoop 2.4 JARs on hadoop-2.6 due to NativeCRC32 method changes | Blocker | native | Steve Loughran | Chris Nauroth | +| [HADOOP-11063](https://issues.apache.org/jira/browse/HADOOP-11063) | KMS cannot deploy on Windows, because class names are too long. | Blocker | . | Chris Nauroth | Chris Nauroth | +| [HADOOP-11062](https://issues.apache.org/jira/browse/HADOOP-11062) | CryptoCodec testcases requiring OpenSSL should be run only if -Pnative is used | Major | security, test | Alejandro Abdelnur | Arun Suresh | +| [HADOOP-11056](https://issues.apache.org/jira/browse/HADOOP-11056) | OsSecureRandom.setConf() might leak file descriptors. | Major | security | Yongjun Zhang | Yongjun Zhang | +| [HADOOP-11049](https://issues.apache.org/jira/browse/HADOOP-11049) | javax package system class default is too broad | Minor | util | Sangjin Lee | Sangjin Lee | +| [HADOOP-11048](https://issues.apache.org/jira/browse/HADOOP-11048) | user/custom LogManager fails to load if the client classloader is enabled | Minor | util | Sangjin Lee | Sangjin Lee | +| [HADOOP-11040](https://issues.apache.org/jira/browse/HADOOP-11040) | Return value of read(ByteBuffer buf) in CryptoInputStream is incorrect in some cases | Major | security | Yi Liu | Yi Liu | +| [HADOOP-11036](https://issues.apache.org/jira/browse/HADOOP-11036) | Add build directory to .gitignore | Minor | . | Tsuyoshi Ozawa | Tsuyoshi Ozawa | +| [HADOOP-11012](https://issues.apache.org/jira/browse/HADOOP-11012) | hadoop fs -text of zero-length file causes EOFException | Major | fs | Eric Payne | Eric Payne | +| [HADOOP-11005](https://issues.apache.org/jira/browse/HADOOP-11005) | Fix HTTP content type for ReconfigurationServlet | Minor | conf | Lei (Eddy) Xu | Lei (Eddy) Xu | +| [HADOOP-10989](https://issues.apache.org/jira/browse/HADOOP-10989) | Work around buggy getgrouplist() implementations on Linux that return 0 on failure | Major | native | Chris Nauroth | Chris Nauroth | +| [HADOOP-10973](https://issues.apache.org/jira/browse/HADOOP-10973) | Native Libraries Guide contains format error | Minor | documentation | Peter Klavins | Peter Klavins | +| [HADOOP-10972](https://issues.apache.org/jira/browse/HADOOP-10972) | Native Libraries Guide contains mis-spelt build line | Major | documentation | Peter Klavins | Peter Klavins | +| [HADOOP-10968](https://issues.apache.org/jira/browse/HADOOP-10968) | hadoop native build fails to detect java\_libarch on ppc64le | Major | build | Dinar Valeev | | +| [HADOOP-10966](https://issues.apache.org/jira/browse/HADOOP-10966) | Hadoop Common native compilation broken in windows | Blocker | native | Vinayakumar B | David Villegas | +| [HADOOP-10964](https://issues.apache.org/jira/browse/HADOOP-10964) | Small fix for NetworkTopologyWithNodeGroup#sortByDistance | Minor | . | Yi Liu | Yi Liu | +| [HADOOP-10962](https://issues.apache.org/jira/browse/HADOOP-10962) | Flags for posix\_fadvise are not valid in some architectures | Major | native | David Villegas | David Villegas | +| [HADOOP-10946](https://issues.apache.org/jira/browse/HADOOP-10946) | Fix a bunch of typos in log messages | Trivial | . | Ray Chiang | Ray Chiang | +| [HADOOP-10939](https://issues.apache.org/jira/browse/HADOOP-10939) | Fix TestKeyProviderFactory testcases to use default 128 bit length keys | Major | . | Arun Suresh | Arun Suresh | +| [HADOOP-10937](https://issues.apache.org/jira/browse/HADOOP-10937) | Need to set version name correctly before decrypting EEK | Major | security | Arun Suresh | Arun Suresh | +| [HADOOP-10931](https://issues.apache.org/jira/browse/HADOOP-10931) | compile error on project "Apache Hadoop OpenStack support" | Minor | build, fs/swift | xukun | | +| [HADOOP-10929](https://issues.apache.org/jira/browse/HADOOP-10929) | Typo in Configuration.getPasswordFromCredentialProviders | Trivial | security | Larry McCay | Larry McCay | +| [HADOOP-10928](https://issues.apache.org/jira/browse/HADOOP-10928) | Incorrect usage on 'hadoop credential list' | Trivial | security | Josh Elser | Josh Elser | +| [HADOOP-10927](https://issues.apache.org/jira/browse/HADOOP-10927) | Fix CredentialShell help behavior and error codes | Minor | security | Josh Elser | Josh Elser | +| [HADOOP-10925](https://issues.apache.org/jira/browse/HADOOP-10925) | Compilation fails in native link0 function on Windows. | Blocker | native | Chris Nauroth | Chris Nauroth | +| [HADOOP-10920](https://issues.apache.org/jira/browse/HADOOP-10920) | site plugin couldn't parse hadoop-kms index.apt.vm | Minor | documentation | Ted Yu | Akira AJISAKA | +| [HADOOP-10918](https://issues.apache.org/jira/browse/HADOOP-10918) | JMXJsonServlet fails when used within Tomcat | Major | . | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-10911](https://issues.apache.org/jira/browse/HADOOP-10911) | hadoop.auth cookie after HADOOP-10710 still not proper according to RFC2109 | Major | security | Gregory Chanan | | +| [HADOOP-10900](https://issues.apache.org/jira/browse/HADOOP-10900) | CredentialShell args should use single-dash style | Minor | . | Andrew Wang | Andrew Wang | +| [HADOOP-10887](https://issues.apache.org/jira/browse/HADOOP-10887) | Add XAttrs to ViewFs and make XAttrs + ViewFileSystem internal dir behavior consistent | Major | fs, test | Stephen Chu | Stephen Chu | +| [HADOOP-10880](https://issues.apache.org/jira/browse/HADOOP-10880) | Move HTTP delegation tokens out of URL querystring to a header | Blocker | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-10866](https://issues.apache.org/jira/browse/HADOOP-10866) | RawLocalFileSystem fails to read symlink targets via the stat command when the format of stat command uses non-curly quotes | Major | . | Yongjun Zhang | Yongjun Zhang | +| [HADOOP-10862](https://issues.apache.org/jira/browse/HADOOP-10862) | Miscellaneous trivial corrections to KMS classes | Major | security | Alejandro Abdelnur | Arun Suresh | +| [HADOOP-10857](https://issues.apache.org/jira/browse/HADOOP-10857) | Native Libraries Guide doen't mention a dependency on openssl-development package | Major | documentation | Tsuyoshi Ozawa | Tsuyoshi Ozawa | +| [HADOOP-10851](https://issues.apache.org/jira/browse/HADOOP-10851) | NetgroupCache does not remove group memberships | Major | security | Benoy Antony | Benoy Antony | +| [HADOOP-10843](https://issues.apache.org/jira/browse/HADOOP-10843) | TestGridmixRecord unit tests failure on PowerPC | Major | test, tools | Jinghui Wang | Jinghui Wang | +| [HADOOP-10842](https://issues.apache.org/jira/browse/HADOOP-10842) | CryptoExtension generateEncryptedKey method should receive the key name | Major | security | Alejandro Abdelnur | Arun Suresh | +| [HADOOP-10830](https://issues.apache.org/jira/browse/HADOOP-10830) | Missing lock in JavaKeyStoreProvider.createCredentialEntry | Major | security | Benoy Antony | Benoy Antony | +| [HADOOP-10820](https://issues.apache.org/jira/browse/HADOOP-10820) | Throw an exception in GenericOptionsParser when passed an empty Path | Minor | . | Alex Holmes | zhihai xu | +| [HADOOP-10816](https://issues.apache.org/jira/browse/HADOOP-10816) | KeyShell returns -1 on error to the shell, should be 1 | Major | security | Mike Yoder | Mike Yoder | +| [HADOOP-10814](https://issues.apache.org/jira/browse/HADOOP-10814) | Update Tomcat version used by HttpFS and KMS to latest 6.x version | Major | . | Alejandro Abdelnur | Robert Kanter | +| [HADOOP-10810](https://issues.apache.org/jira/browse/HADOOP-10810) | Clean up native code compilation warnings. | Minor | native | Chris Nauroth | Chris Nauroth | +| [HADOOP-10781](https://issues.apache.org/jira/browse/HADOOP-10781) | Unportable getgrouplist() usage breaks FreeBSD | Major | . | Dmitry Sivachenko | Dmitry Sivachenko | +| [HADOOP-10780](https://issues.apache.org/jira/browse/HADOOP-10780) | hadoop\_user\_info\_alloc fails on FreeBSD due to incorrect sysconf use | Major | . | Dmitry Sivachenko | Dmitry Sivachenko | +| [HADOOP-10744](https://issues.apache.org/jira/browse/HADOOP-10744) | LZ4 Compression fails to recognize PowerPC Little Endian Architecture | Major | io, native | Ayappan | Bert Sanders | +| [HADOOP-10733](https://issues.apache.org/jira/browse/HADOOP-10733) | Potential null dereference in CredentialShell#promptForCredential() | Minor | . | Ted Yu | Ted Yu | +| [HADOOP-10732](https://issues.apache.org/jira/browse/HADOOP-10732) | Update without holding write lock in JavaKeyStoreProvider#innerSetCredential() | Minor | . | Ted Yu | Ted Yu | +| [HADOOP-10681](https://issues.apache.org/jira/browse/HADOOP-10681) | Remove synchronized blocks from SnappyCodec and ZlibCodec buffering inner loop | Major | performance | Gopal V | Gopal V | +| [HADOOP-10677](https://issues.apache.org/jira/browse/HADOOP-10677) | ExportSnapshot fails on kerberized cluster using s3a | Major | fs/s3 | David S. Wang | David S. Wang | +| [HADOOP-10676](https://issues.apache.org/jira/browse/HADOOP-10676) | S3AOutputStream not reading new config knobs for multipart configs | Major | fs/s3 | David S. Wang | David S. Wang | +| [HADOOP-10673](https://issues.apache.org/jira/browse/HADOOP-10673) | Update rpc metrics when the call throws an exception | Major | . | Ming Ma | Ming Ma | +| [HADOOP-10645](https://issues.apache.org/jira/browse/HADOOP-10645) | TestKMS fails because race condition writing acl files | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-10611](https://issues.apache.org/jira/browse/HADOOP-10611) | KMS, keyVersion name should not be assumed to be keyName@versionNumber | Major | security | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-10591](https://issues.apache.org/jira/browse/HADOOP-10591) | Compression codecs must used pooled direct buffers or deallocate direct buffers when stream is closed | Major | . | Hari Shreedharan | Colin Patrick McCabe | +| [HADOOP-10586](https://issues.apache.org/jira/browse/HADOOP-10586) | KeyShell doesn't allow setting Options via CLI | Minor | bin | Charles Lamb | Charles Lamb | +| [HADOOP-10583](https://issues.apache.org/jira/browse/HADOOP-10583) | bin/hadoop key throws NPE with no args and assorted other fixups | Minor | bin | Charles Lamb | Charles Lamb | +| [HADOOP-10552](https://issues.apache.org/jira/browse/HADOOP-10552) | Fix usage and example at FileSystemShell.apt.vm | Trivial | documentation | Kenji Kikushima | Kenji Kikushima | +| [HADOOP-10534](https://issues.apache.org/jira/browse/HADOOP-10534) | KeyProvider API should using windowing for retrieving metadata | Major | . | Owen O'Malley | Owen O'Malley | +| [HADOOP-10507](https://issues.apache.org/jira/browse/HADOOP-10507) | FsShell setfacl can throw ArrayIndexOutOfBoundsException when no perm is specified | Minor | fs | Stephen Chu | sathish | +| [HADOOP-10488](https://issues.apache.org/jira/browse/HADOOP-10488) | TestKeyProviderFactory fails randomly | Major | test | Alejandro Abdelnur | Alejandro Abdelnur | +| [HADOOP-10404](https://issues.apache.org/jira/browse/HADOOP-10404) | Some accesses to DomainSocketWatcher#closed are not protected by lock | Minor | . | Ted Yu | Colin Patrick McCabe | +| [HADOOP-10402](https://issues.apache.org/jira/browse/HADOOP-10402) | Configuration.getValByRegex does not substitute for variables | Major | . | Robert Kanter | Robert Kanter | +| [HADOOP-10244](https://issues.apache.org/jira/browse/HADOOP-10244) | TestKeyShell improperly tests the results of a Delete | Major | security | Larry McCay | Larry McCay | +| [HADOOP-10237](https://issues.apache.org/jira/browse/HADOOP-10237) | JavaKeyStoreProvider needs to set keystore permissions properly | Major | security | Larry McCay | Larry McCay | +| [HADOOP-10224](https://issues.apache.org/jira/browse/HADOOP-10224) | JavaKeyStoreProvider has to protect against corrupting underlying store | Major | security | Larry McCay | Arun Suresh | +| [HADOOP-10177](https://issues.apache.org/jira/browse/HADOOP-10177) | Create CLI tools for managing keys via the KeyProvider API | Major | security | Owen O'Malley | Larry McCay | +| [HADOOP-10141](https://issues.apache.org/jira/browse/HADOOP-10141) | Create an API to separate encryption key storage from applications | Major | security | Owen O'Malley | Owen O'Malley | +| [HADOOP-10131](https://issues.apache.org/jira/browse/HADOOP-10131) | NetWorkTopology#countNumOfAvailableNodes() is returning wrong value if excluded nodes passed are not part of the cluster tree | Major | . | Vinayakumar B | Vinayakumar B | +| [HADOOP-10121](https://issues.apache.org/jira/browse/HADOOP-10121) | Fix javadoc spelling for HadoopArchives#writeTopLevelDirs | Trivial | documentation | Akira AJISAKA | Akira AJISAKA | +| [HADOOP-10059](https://issues.apache.org/jira/browse/HADOOP-10059) | RPC authentication and authorization metrics overflow to negative values on busy clusters | Minor | metrics | Jason Lowe | Tsuyoshi Ozawa | +| [HADOOP-10037](https://issues.apache.org/jira/browse/HADOOP-10037) | s3n read truncated, but doesn't throw exception | Major | fs/s3 | David Rosenstrauch | | +| [HADOOP-9989](https://issues.apache.org/jira/browse/HADOOP-9989) | Bug introduced in HADOOP-9374, which parses the -tokenCacheFile as binary file but set it to the configuration as JSON file. | Major | security, util | Jinghui Wang | zhihai xu | +| [HADOOP-9921](https://issues.apache.org/jira/browse/HADOOP-9921) | daemon scripts should remove pid file on stop call after stop or process is found not running | Major | . | Vinayakumar B | Vinayakumar B | +| [HADOOP-9740](https://issues.apache.org/jira/browse/HADOOP-9740) | FsShell's Text command does not read avro data files stored on HDFS | Major | fs | Allan Yan | Allan Yan | +| [HADOOP-9576](https://issues.apache.org/jira/browse/HADOOP-9576) | Make NetUtils.wrapException throw EOFException instead of wrapping it as IOException | Major | . | Jian He | Steve Loughran | +| [HADOOP-8808](https://issues.apache.org/jira/browse/HADOOP-8808) | Update FsShell documentation to mention deprecation of some of the commands, and mention alternatives | Major | documentation, fs | Hemanth Yamijala | Akira AJISAKA | +| [HADOOP-8158](https://issues.apache.org/jira/browse/HADOOP-8158) | Interrupting hadoop fs -put from the command line causes a LeaseExpiredException | Major | . | Todd Lipcon | Daryn Sharp | +| [HDFS-7391](https://issues.apache.org/jira/browse/HDFS-7391) | Renable SSLv2Hello in HttpFS | Blocker | webhdfs | Robert Kanter | Robert Kanter | +| [HDFS-7387](https://issues.apache.org/jira/browse/HDFS-7387) | NFS may only do partial commit due to a race between COMMIT and write | Critical | nfs | Brandon Li | Brandon Li | +| [HDFS-7385](https://issues.apache.org/jira/browse/HDFS-7385) | ThreadLocal used in FSEditLog class causes FSImage permission mess up | Blocker | namenode | jiangyu | jiangyu | +| [HDFS-7383](https://issues.apache.org/jira/browse/HDFS-7383) | DataNode.requestShortCircuitFdsForRead may throw NullPointerException | Major | datanode | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-7382](https://issues.apache.org/jira/browse/HDFS-7382) | DataNode in secure mode may throw NullPointerException if client connects before DataNode registers itself with NameNode. | Minor | datanode, security | Chris Nauroth | Chris Nauroth | +| [HDFS-7379](https://issues.apache.org/jira/browse/HDFS-7379) | TestBalancer#testBalancerWithRamDisk creates test files incorrectly | Minor | test | Xiaoyu Yao | Xiaoyu Yao | +| [HDFS-7367](https://issues.apache.org/jira/browse/HDFS-7367) | HDFS short-circuit read cannot negotiate shared memory slot and file descriptors when SASL is enabled on DataTransferProtocol. | Major | hdfs-client | Chris Nauroth | Chris Nauroth | +| [HDFS-7364](https://issues.apache.org/jira/browse/HDFS-7364) | Balancer always shows zero Bytes Already Moved | Minor | balancer & mover | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-7359](https://issues.apache.org/jira/browse/HDFS-7359) | NameNode in secured HA cluster fails to start if dfs.namenode.secondary.http-address cannot be interpreted as a network address. | Major | journal-node, namenode | Chris Nauroth | Chris Nauroth | +| [HDFS-7340](https://issues.apache.org/jira/browse/HDFS-7340) | make rollingUpgrade start/finalize idempotent | Major | ha | Arpit Gupta | Jing Zhao | +| [HDFS-7334](https://issues.apache.org/jira/browse/HDFS-7334) | Fix periodic failures of TestCheckpoint#testTooManyEditReplayFailures | Minor | test | Charles Lamb | Charles Lamb | +| [HDFS-7328](https://issues.apache.org/jira/browse/HDFS-7328) | TestTraceAdmin assumes Unix line endings. | Trivial | test | Chris Nauroth | Chris Nauroth | +| [HDFS-7309](https://issues.apache.org/jira/browse/HDFS-7309) | XMLUtils.mangleXmlString doesn't seem to handle less than sign | Minor | . | Ravi Prakash | Colin Patrick McCabe | +| [HDFS-7305](https://issues.apache.org/jira/browse/HDFS-7305) | NPE seen in wbhdfs FS while running SLive | Minor | webhdfs | Arpit Gupta | Jing Zhao | +| [HDFS-7300](https://issues.apache.org/jira/browse/HDFS-7300) | The getMaxNodesPerRack() method in BlockPlacementPolicyDefault is flawed | Critical | . | Kihwal Lee | Kihwal Lee | +| [HDFS-7296](https://issues.apache.org/jira/browse/HDFS-7296) | HdfsConstants#MEMORY\_STORAGE\_POLICY\_ID and HdfsConstants#MEMORY\_STORAGE\_POLICY\_ID are missing in branch-2 | Minor | . | Jing Zhao | Jing Zhao | +| [HDFS-7287](https://issues.apache.org/jira/browse/HDFS-7287) | The OfflineImageViewer (OIV) can output invalid XML depending on the filename | Major | . | Ravi Prakash | Ravi Prakash | +| [HDFS-7274](https://issues.apache.org/jira/browse/HDFS-7274) | Disable SSLv3 in HttpFS | Blocker | webhdfs | Robert Kanter | Robert Kanter | +| [HDFS-7259](https://issues.apache.org/jira/browse/HDFS-7259) | Unresponseive NFS mount point due to deferred COMMIT response | Major | nfs | Brandon Li | Brandon Li | +| [HDFS-7243](https://issues.apache.org/jira/browse/HDFS-7243) | HDFS concat operation should not be allowed in Encryption Zone | Major | encryption, namenode | Yi Liu | Charles Lamb | +| [HDFS-7237](https://issues.apache.org/jira/browse/HDFS-7237) | namenode -rollingUpgrade throws ArrayIndexOutOfBoundsException | Minor | namenode | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-7236](https://issues.apache.org/jira/browse/HDFS-7236) | Fix TestOpenFilesWithSnapshot#testOpenFilesWithMultipleSnapshots | Major | . | Yongjun Zhang | Yongjun Zhang | +| [HDFS-7226](https://issues.apache.org/jira/browse/HDFS-7226) | TestDNFencing.testQueueingWithAppend failed often in latest test | Major | ha | Yongjun Zhang | Yongjun Zhang | +| [HDFS-7221](https://issues.apache.org/jira/browse/HDFS-7221) | TestDNFencingWithReplication fails consistently | Minor | test | Charles Lamb | Charles Lamb | +| [HDFS-7218](https://issues.apache.org/jira/browse/HDFS-7218) | FSNamesystem ACL operations should write to audit log on failure | Minor | namenode | Charles Lamb | Charles Lamb | +| [HDFS-7208](https://issues.apache.org/jira/browse/HDFS-7208) | NN doesn't schedule replication when a DN storage fails | Major | namenode | Ming Ma | Ming Ma | +| [HDFS-7199](https://issues.apache.org/jira/browse/HDFS-7199) | DFSOutputStream should not silently drop data if DataStreamer crashes with an unchecked exception | Critical | hdfs-client | Jason Lowe | Rushabh S Shah | +| [HDFS-7185](https://issues.apache.org/jira/browse/HDFS-7185) | The active NameNode will not accept an fsimage sent from the standby during rolling upgrade | Major | namenode | Colin Patrick McCabe | Jing Zhao | +| [HDFS-7180](https://issues.apache.org/jira/browse/HDFS-7180) | NFSv3 gateway frequently gets stuck due to GC | Critical | nfs | Eric Zhiqiang Ma | Brandon Li | +| [HDFS-7178](https://issues.apache.org/jira/browse/HDFS-7178) | Additional unit test for replica write with full disk | Major | test | Arpit Agarwal | Arpit Agarwal | +| [HDFS-7176](https://issues.apache.org/jira/browse/HDFS-7176) | The namenode usage message doesn't include "-rollingupgrade started" | Minor | namenode | Colin Patrick McCabe | Colin Patrick McCabe | +| [HDFS-7172](https://issues.apache.org/jira/browse/HDFS-7172) | Test data files may be checked out of git with incorrect line endings, causing test failures in TestHDFSCLI. | Trivial | test | Chris Nauroth | Chris Nauroth | +| [HDFS-7169](https://issues.apache.org/jira/browse/HDFS-7169) | Fix a findbugs warning in ReplaceDatanodeOnFailure | Minor | build | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-7167](https://issues.apache.org/jira/browse/HDFS-7167) | NPE while running Mover if the given path is for a file | Major | balancer & mover | Prabushankar Chinnasamy | Jing Zhao | +| [HDFS-7162](https://issues.apache.org/jira/browse/HDFS-7162) | Wrong path when deleting through fuse-dfs a file which already exists in trash | Major | fuse-dfs | Chengbing Liu | Chengbing Liu | +| [HDFS-7156](https://issues.apache.org/jira/browse/HDFS-7156) | Fsck documentation is outdated. | Major | documentation | Konstantin Shvachko | Masahiro Yamaguchi | +| [HDFS-7148](https://issues.apache.org/jira/browse/HDFS-7148) | TestEncryptionZones#testIsEncryptedMethod fails on branch-2 after archival storage merge | Major | encryption | Andrew Wang | Andrew Wang | +| [HDFS-7147](https://issues.apache.org/jira/browse/HDFS-7147) | Update archival storage user documentation | Blocker | documentation | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-7132](https://issues.apache.org/jira/browse/HDFS-7132) | hdfs namenode -metadataVersion command does not honor configured name dirs | Minor | namenode | Charles Lamb | Charles Lamb | +| [HDFS-7131](https://issues.apache.org/jira/browse/HDFS-7131) | During HA upgrade, JournalNode should create a new committedTxnId file in the current directory | Major | qjm | Jing Zhao | Jing Zhao | +| [HDFS-7130](https://issues.apache.org/jira/browse/HDFS-7130) | TestDataTransferKeepalive fails intermittently on Windows. | Major | test | Chris Nauroth | Chris Nauroth | +| [HDFS-7127](https://issues.apache.org/jira/browse/HDFS-7127) | TestLeaseRecovery leaks MiniDFSCluster instances. | Major | test | Chris Nauroth | Chris Nauroth | +| [HDFS-7122](https://issues.apache.org/jira/browse/HDFS-7122) | Use of ThreadLocal\<Random\> results in poor block placement | Blocker | namenode | Jeff Buell | Andrew Wang | +| [HDFS-7111](https://issues.apache.org/jira/browse/HDFS-7111) | TestSafeMode assumes Unix line endings in safe mode tip. | Trivial | test | Chris Nauroth | Chris Nauroth | +| [HDFS-7110](https://issues.apache.org/jira/browse/HDFS-7110) | Skip tests related to short-circuit read on platforms that do not currently implement short-circuit read. | Minor | test | Chris Nauroth | Chris Nauroth | +| [HDFS-7109](https://issues.apache.org/jira/browse/HDFS-7109) | TestDataStorage does not release file locks between tests. | Minor | test | Chris Nauroth | Chris Nauroth | +| [HDFS-7107](https://issues.apache.org/jira/browse/HDFS-7107) | Avoid Findbugs warning for synchronization on AbstractNNFailoverProxyProvider#fallbackToSimpleAuth. | Trivial | ha | Chris Nauroth | Chris Nauroth | +| [HDFS-7106](https://issues.apache.org/jira/browse/HDFS-7106) | Reconfiguring DataNode volumes does not release the lock files in removed volumes. | Major | datanode | Chris Nauroth | Chris Nauroth | +| [HDFS-7105](https://issues.apache.org/jira/browse/HDFS-7105) | Fix TestJournalNode#testFailToStartWithBadConfig to match log output change | Minor | test | Ray Chiang | Ray Chiang | +| [HDFS-7104](https://issues.apache.org/jira/browse/HDFS-7104) | Fix and clarify INodeInPath getter functions | Minor | . | Zhe Zhang | Zhe Zhang | +| [HDFS-7096](https://issues.apache.org/jira/browse/HDFS-7096) | Fix TestRpcProgramNfs3 to use DFS\_ENCRYPTION\_KEY\_PROVIDER\_URI | Minor | test | Charles Lamb | Charles Lamb | +| [HDFS-7075](https://issues.apache.org/jira/browse/HDFS-7075) | hadoop-fuse-dfs fails because it cannot find JavaKeyStoreProvider$Factory | Major | . | Colin Patrick McCabe | Colin Patrick McCabe | +| [HDFS-7073](https://issues.apache.org/jira/browse/HDFS-7073) | Allow falling back to a non-SASL connection on DataTransferProtocol in several edge cases. | Major | datanode, hdfs-client, security | Chris Nauroth | Chris Nauroth | +| [HDFS-7065](https://issues.apache.org/jira/browse/HDFS-7065) | Pipeline close recovery race can cause block corruption | Critical | datanode | Kihwal Lee | Kihwal Lee | +| [HDFS-7049](https://issues.apache.org/jira/browse/HDFS-7049) | TestByteRangeInputStream.testPropagatedClose fails and throw NPE on branch-2 | Minor | test | Juan Yu | Juan Yu | +| [HDFS-7046](https://issues.apache.org/jira/browse/HDFS-7046) | HA NN can NPE upon transition to active | Critical | namenode | Daryn Sharp | Kihwal Lee | +| [HDFS-7045](https://issues.apache.org/jira/browse/HDFS-7045) | Fix NameNode deadlock when opening file under /.reserved path | Critical | namenode | Yi Liu | Yi Liu | +| [HDFS-7042](https://issues.apache.org/jira/browse/HDFS-7042) | Upgrade fails for Windows HA cluster due to file locks held during rename in JournalNode. | Blocker | journal-node | Chris Nauroth | Chris Nauroth | +| [HDFS-7005](https://issues.apache.org/jira/browse/HDFS-7005) | DFS input streams do not timeout | Critical | hdfs-client | Daryn Sharp | Daryn Sharp | +| [HDFS-7001](https://issues.apache.org/jira/browse/HDFS-7001) | Tests in TestTracing should not depend on the order of execution | Minor | . | Masatake Iwasaki | Masatake Iwasaki | +| [HDFS-6996](https://issues.apache.org/jira/browse/HDFS-6996) | SnapshotDiff report can hit IndexOutOfBoundsException when there are nested renamed directory/file | Major | snapshots | Jing Zhao | Jing Zhao | +| [HDFS-6995](https://issues.apache.org/jira/browse/HDFS-6995) | Block should be placed in the client's 'rack-local' node if 'client-local' node is not available | Major | namenode | Vinayakumar B | Vinayakumar B | +| [HDFS-6981](https://issues.apache.org/jira/browse/HDFS-6981) | Fix DN upgrade with layout version change | Major | datanode | James Thomas | Arpit Agarwal | +| [HDFS-6979](https://issues.apache.org/jira/browse/HDFS-6979) | hdfs.dll does not produce .pdb files | Minor | hdfs-client | Remus Rusanu | Chris Nauroth | +| [HDFS-6972](https://issues.apache.org/jira/browse/HDFS-6972) | TestRefreshUserMappings.testRefreshSuperUserGroupsConfiguration doesn't decode url correctly | Major | . | Yongjun Zhang | Yongjun Zhang | +| [HDFS-6965](https://issues.apache.org/jira/browse/HDFS-6965) | NN continues to issue block locations for DNs with full disks | Major | namenode | Daryn Sharp | Rushabh S Shah | +| [HDFS-6954](https://issues.apache.org/jira/browse/HDFS-6954) | With crypto, no native lib systems are too verbose | Major | encryption | Allen Wittenauer | Charles Lamb | +| [HDFS-6948](https://issues.apache.org/jira/browse/HDFS-6948) | DN rejects blocks if it has older UC block | Major | . | Daryn Sharp | Eric Payne | +| [HDFS-6942](https://issues.apache.org/jira/browse/HDFS-6942) | Fix typos in log messages | Trivial | . | Ray Chiang | Ray Chiang | +| [HDFS-6912](https://issues.apache.org/jira/browse/HDFS-6912) | SharedFileDescriptorFactory should not allocate sparse files | Minor | caching | Gopal V | Colin Patrick McCabe | +| [HDFS-6908](https://issues.apache.org/jira/browse/HDFS-6908) | incorrect snapshot directory diff generated by snapshot deletion | Critical | snapshots | Juan Yu | Juan Yu | +| [HDFS-6905](https://issues.apache.org/jira/browse/HDFS-6905) | fs-encryption merge triggered release audit failures | Blocker | . | Allen Wittenauer | Charles Lamb | +| [HDFS-6904](https://issues.apache.org/jira/browse/HDFS-6904) | YARN unable to renew delegation token fetched via webhdfs due to incorrect service port | Critical | webhdfs | Varun Vasudev | Jitendra Nath Pandey | +| [HDFS-6902](https://issues.apache.org/jira/browse/HDFS-6902) | FileWriter should be closed in finally block in BlockReceiver#receiveBlock() | Minor | . | Ted Yu | Tsuyoshi Ozawa | +| [HDFS-6898](https://issues.apache.org/jira/browse/HDFS-6898) | DN must reserve space for a full block when an RBW block is created | Major | datanode | Gopal V | Arpit Agarwal | +| [HDFS-6890](https://issues.apache.org/jira/browse/HDFS-6890) | NFS readdirplus doesn't return dotdot attributes | Major | nfs | Brandon Li | Brandon Li | +| [HDFS-6870](https://issues.apache.org/jira/browse/HDFS-6870) | Blocks and INodes could leak for Rename with overwrite flag | Major | namenode | Yi Liu | Yi Liu | +| [HDFS-6868](https://issues.apache.org/jira/browse/HDFS-6868) | portmap and nfs3 are documented as hadoop commands instead of hdfs | Major | documentation, nfs | Allen Wittenauer | Brandon Li | +| [HDFS-6862](https://issues.apache.org/jira/browse/HDFS-6862) | Add missing timeout annotations to tests | Major | test | Arpit Agarwal | Xiaoyu Yao | +| [HDFS-6848](https://issues.apache.org/jira/browse/HDFS-6848) | Lack of synchronization on access to datanodeUuid in DataStorage#format() | Minor | . | Ted Yu | Xiaoyu Yao | +| [HDFS-6840](https://issues.apache.org/jira/browse/HDFS-6840) | Clients are always sent to the same datanode when read is off rack | Critical | . | Jason Lowe | Andrew Wang | +| [HDFS-6838](https://issues.apache.org/jira/browse/HDFS-6838) | Code cleanup for unnecessary INode replacement | Minor | namenode | Jing Zhao | Jing Zhao | +| [HDFS-6831](https://issues.apache.org/jira/browse/HDFS-6831) | Inconsistency between 'hdfs dfsadmin' and 'hdfs dfsadmin -help' | Minor | . | Akira AJISAKA | Xiaoyu Yao | +| [HDFS-6830](https://issues.apache.org/jira/browse/HDFS-6830) | BlockInfo.addStorage fails when DN changes the storage for a block replica | Major | namenode | Arpit Agarwal | Arpit Agarwal | +| [HDFS-6829](https://issues.apache.org/jira/browse/HDFS-6829) | DFSAdmin refreshSuperUserGroupsConfiguration failed in security cluster | Minor | tools | zhaoyunjiong | zhaoyunjiong | +| [HDFS-6825](https://issues.apache.org/jira/browse/HDFS-6825) | Edit log corruption due to delayed block removal | Major | namenode | Yongjun Zhang | Yongjun Zhang | +| [HDFS-6823](https://issues.apache.org/jira/browse/HDFS-6823) | dfs.web.authentication.kerberos.principal shows up in logs for insecure HDFS | Minor | namenode | Allen Wittenauer | Allen Wittenauer | +| [HDFS-6810](https://issues.apache.org/jira/browse/HDFS-6810) | StorageReport array is initialized with wrong size in DatanodeDescriptor#getStorageReports | Minor | namenode | Ted Yu | Tsz Wo Nicholas Sze | +| [HDFS-6802](https://issues.apache.org/jira/browse/HDFS-6802) | Some tests in TestDFSClientFailover are missing @Test annotation | Major | test | Akira AJISAKA | Akira AJISAKA | +| [HDFS-6799](https://issues.apache.org/jira/browse/HDFS-6799) | The invalidate method in SimulatedFSDataset.java failed to remove (invalidate) blocks from the file system. | Minor | datanode, test | Megasthenis Asteris | Megasthenis Asteris | +| [HDFS-6797](https://issues.apache.org/jira/browse/HDFS-6797) | DataNode logs wrong layoutversion during upgrade | Major | datanode | Benoy Antony | Benoy Antony | +| [HDFS-6791](https://issues.apache.org/jira/browse/HDFS-6791) | A block could remain under replicated if all of its replicas are on decommissioned nodes | Major | . | Ming Ma | Ming Ma | +| [HDFS-6790](https://issues.apache.org/jira/browse/HDFS-6790) | DFSUtil Should Use configuration.getPassword for SSL passwords | Major | . | Larry McCay | Larry McCay | +| [HDFS-6789](https://issues.apache.org/jira/browse/HDFS-6789) | TestDFSClientFailover.testFileContextDoesntDnsResolveLogicalURI and TestDFSClientFailover.testDoesntDnsResolveLogicalURI failing on jdk7 | Major | test | Rushabh S Shah | Akira AJISAKA | +| [HDFS-6788](https://issues.apache.org/jira/browse/HDFS-6788) | Improve synchronization in BPOfferService with read write lock | Major | datanode | Yongjun Zhang | Yongjun Zhang | +| [HDFS-6787](https://issues.apache.org/jira/browse/HDFS-6787) | Remove duplicate code in FSDirectory#unprotectedConcat | Major | namenode | Yi Liu | Yi Liu | +| [HDFS-6783](https://issues.apache.org/jira/browse/HDFS-6783) | Fix HDFS CacheReplicationMonitor rescan logic | Major | caching | Yi Liu | Yi Liu | +| [HDFS-6778](https://issues.apache.org/jira/browse/HDFS-6778) | The extended attributes javadoc should simply refer to the user docs | Major | . | Charles Lamb | Charles Lamb | +| [HDFS-6776](https://issues.apache.org/jira/browse/HDFS-6776) | Using distcp to copy data between insecure and secure cluster via webdhfs doesn't work | Major | . | Yongjun Zhang | Yongjun Zhang | +| [HDFS-6768](https://issues.apache.org/jira/browse/HDFS-6768) | Fix a few unit tests that use hard-coded port numbers | Major | test | Arpit Agarwal | Arpit Agarwal | +| [HDFS-6754](https://issues.apache.org/jira/browse/HDFS-6754) | TestNamenodeCapacityReport.testXceiverCount may sometimes fail due to lack of retry | Major | . | Mit Desai | Mit Desai | +| [HDFS-6749](https://issues.apache.org/jira/browse/HDFS-6749) | FSNamesystem methods should call resolvePath | Major | namenode | Charles Lamb | Charles Lamb | +| [HDFS-6731](https://issues.apache.org/jira/browse/HDFS-6731) | Run "hdfs zkfc-formatZK" on a server in a non-namenode will cause a null pointer exception. | Major | auto-failover, ha | WenJin Ma | Masatake Iwasaki | +| [HDFS-6715](https://issues.apache.org/jira/browse/HDFS-6715) | webhdfs wont fail over when it gets java.io.IOException: Namenode is in startup mode | Major | ha, webhdfs | Arpit Gupta | Jing Zhao | +| [HDFS-6714](https://issues.apache.org/jira/browse/HDFS-6714) | TestBlocksScheduledCounter#testBlocksScheduledCounter should shutdown cluster | Minor | test | Vinayakumar B | Vinayakumar B | +| [HDFS-6704](https://issues.apache.org/jira/browse/HDFS-6704) | Fix the command to launch JournalNode in HDFS-HA document | Minor | documentation | Akira AJISAKA | Akira AJISAKA | +| [HDFS-6702](https://issues.apache.org/jira/browse/HDFS-6702) | DFSClient should create blocks using StorageType | Major | datanode, hdfs-client | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-6693](https://issues.apache.org/jira/browse/HDFS-6693) | TestDFSAdminWithHA fails on windows | Major | test, tools | Vinayakumar B | Vinayakumar B | +| [HDFS-6689](https://issues.apache.org/jira/browse/HDFS-6689) | NFS doesn't return correct lookup access for directories | Major | nfs | Yesha Vora | Brandon Li | +| [HDFS-6678](https://issues.apache.org/jira/browse/HDFS-6678) | MiniDFSCluster may still be partially running after initialization fails. | Minor | test | Chris Nauroth | Chris Nauroth | +| [HDFS-6667](https://issues.apache.org/jira/browse/HDFS-6667) | In HDFS HA mode, Distcp/SLive with webhdfs on secure cluster fails with Client cannot authenticate via:[TOKEN, KERBEROS] error | Major | security | Jian He | Jing Zhao | +| [HDFS-6664](https://issues.apache.org/jira/browse/HDFS-6664) | HDFS permissions guide documentation states incorrect default group mapping class. | Trivial | documentation | Chris Nauroth | Ray Chiang | +| [HDFS-6646](https://issues.apache.org/jira/browse/HDFS-6646) | [ HDFS Rolling Upgrade - Shell ] shutdownDatanode and getDatanodeInfo usage is missed | Major | tools | Brahma Reddy Battula | Brahma Reddy Battula | +| [HDFS-6640](https://issues.apache.org/jira/browse/HDFS-6640) | [ Web HDFS ] Syntax for MKDIRS, CREATESYMLINK, and SETXATTR are given wrongly(missed webhdfs/v1).). | Major | documentation, webhdfs | Brahma Reddy Battula | Stephen Chu | +| [HDFS-6630](https://issues.apache.org/jira/browse/HDFS-6630) | Unable to fetch the block information by Browsing the file system on Namenode UI through IE9 | Major | namenode | J.Andreina | Haohui Mai | +| [HDFS-6621](https://issues.apache.org/jira/browse/HDFS-6621) | Hadoop Balancer prematurely exits iterations | Major | balancer & mover | Benjamin Bowman | Rafal Wojdyla | +| [HDFS-6616](https://issues.apache.org/jira/browse/HDFS-6616) | bestNode shouldn't always return the first DataNode | Minor | webhdfs | zhaoyunjiong | zhaoyunjiong | +| [HDFS-6582](https://issues.apache.org/jira/browse/HDFS-6582) | Missing null check in RpcProgramNfs3#read(XDR, SecurityHandler) | Minor | nfs | Ted Yu | Abhiraj Butala | +| [HDFS-6569](https://issues.apache.org/jira/browse/HDFS-6569) | OOB message can't be sent to the client when DataNode shuts down for upgrade | Major | datanode | Brandon Li | Brandon Li | +| [HDFS-6567](https://issues.apache.org/jira/browse/HDFS-6567) | Normalize the order of public final in HdfsFileStatus | Major | . | Haohui Mai | Tassapol Athiapinya | +| [HDFS-6544](https://issues.apache.org/jira/browse/HDFS-6544) | Broken Link for GFS in package.html | Minor | . | Suraj Nayak M | Suraj Nayak M | +| [HDFS-6534](https://issues.apache.org/jira/browse/HDFS-6534) | Fix build on macosx: HDFS parts | Minor | . | Binglin Chang | Binglin Chang | +| [HDFS-6517](https://issues.apache.org/jira/browse/HDFS-6517) | Remove hadoop-metrics2.properties from hdfs project | Major | . | Akira AJISAKA | Akira AJISAKA | +| [HDFS-6506](https://issues.apache.org/jira/browse/HDFS-6506) | Newly moved block replica been invalidated and deleted in TestBalancer | Major | balancer & mover, test | Binglin Chang | Binglin Chang | +| [HDFS-6478](https://issues.apache.org/jira/browse/HDFS-6478) | RemoteException can't be retried properly for non-HA scenario | Major | . | Ming Ma | Ming Ma | +| [HDFS-6456](https://issues.apache.org/jira/browse/HDFS-6456) | NFS should throw error for invalid entry in dfs.nfs.exports.allowed.hosts | Major | nfs | Yesha Vora | Abhiraj Butala | +| [HDFS-6455](https://issues.apache.org/jira/browse/HDFS-6455) | NFS: Exception should be added in NFS log for invalid separator in nfs.exports.allowed.hosts | Major | nfs | Yesha Vora | Abhiraj Butala | +| [HDFS-6451](https://issues.apache.org/jira/browse/HDFS-6451) | NFS should not return NFS3ERR\_IO for AccessControlException | Major | nfs | Brandon Li | Abhiraj Butala | +| [HDFS-6376](https://issues.apache.org/jira/browse/HDFS-6376) | Distcp data between two HA clusters requires another configuration | Major | datanode, federation, hdfs-client | Dave Marion | Dave Marion | +| [HDFS-6247](https://issues.apache.org/jira/browse/HDFS-6247) | Avoid timeouts for replaceBlock() call by sending intermediate responses to Balancer | Major | balancer & mover, datanode | Vinayakumar B | Vinayakumar B | +| [HDFS-6114](https://issues.apache.org/jira/browse/HDFS-6114) | Block Scan log rolling will never happen if blocks written continuously leading to huge size of dncp\_block\_verification.log.curr | Critical | datanode | Vinayakumar B | Vinayakumar B | +| [HDFS-5919](https://issues.apache.org/jira/browse/HDFS-5919) | FileJournalManager doesn't purge empty and corrupt inprogress edits files | Major | namenode | Vinayakumar B | Vinayakumar B | +| [HDFS-5809](https://issues.apache.org/jira/browse/HDFS-5809) | BlockPoolSliceScanner and high speed hdfs appending make datanode to drop into infinite loop | Critical | datanode | ikweesung | Colin Patrick McCabe | +| [HDFS-5723](https://issues.apache.org/jira/browse/HDFS-5723) | Append failed FINALIZED replica should not be accepted as valid when that block is underconstruction | Major | namenode | Vinayakumar B | Vinayakumar B | +| [HDFS-5185](https://issues.apache.org/jira/browse/HDFS-5185) | DN fails to startup if one of the data dir is full | Critical | datanode | Vinayakumar B | Vinayakumar B | +| [HDFS-5089](https://issues.apache.org/jira/browse/HDFS-5089) | When a LayoutVersion support SNAPSHOT, it must support FSIMAGE\_NAME\_OPTIMIZATION. | Major | namenode | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-4852](https://issues.apache.org/jira/browse/HDFS-4852) | libhdfs documentation is out of date | Minor | . | Andrew Wang | Chris Nauroth | +| [HDFS-4629](https://issues.apache.org/jira/browse/HDFS-4629) | Using com.sun.org.apache.xml.internal.serialize.\* in XmlEditsVisitor.java is JVM vendor specific. Breaks IBM JAVA | Major | tools | Amir Sanjar | | +| [HDFS-4227](https://issues.apache.org/jira/browse/HDFS-4227) | Document dfs.namenode.resource.\* | Major | documentation | Eli Collins | Daisuke Kobayashi | +| [HDFS-4165](https://issues.apache.org/jira/browse/HDFS-4165) | Faulty sanity check in FsDirectory.unprotectedSetQuota | Trivial | namenode | Binglin Chang | Binglin Chang | +| [HDFS-3482](https://issues.apache.org/jira/browse/HDFS-3482) | hdfs balancer throws ArrayIndexOutOfBoundsException if option is specified without arguments | Minor | balancer & mover | Stephen Chu | madhukara phatak | +| [HDFS-2976](https://issues.apache.org/jira/browse/HDFS-2976) | Remove unnecessary method (tokenRefetchNeeded) in DFSClient | Trivial | hdfs-client | Uma Maheswara Rao G | Uma Maheswara Rao G | +| [HDFS-2975](https://issues.apache.org/jira/browse/HDFS-2975) | Rename with overwrite flag true can make NameNode to stuck in safemode on NN (crash + restart). | Major | namenode | Uma Maheswara Rao G | Yi Liu | +| [MAPREDUCE-6156](https://issues.apache.org/jira/browse/MAPREDUCE-6156) | Fetcher - connect() doesn't handle connection refused correctly | Blocker | . | Sidharta Seethana | Junping Du | +| [MAPREDUCE-6126](https://issues.apache.org/jira/browse/MAPREDUCE-6126
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