Make upstream aware of 2.10.2 release.

hadoop-common-project/hadoop-common/src/site/markdown/release/2.10.2/CHANGELOG.2.10.2.md

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+# "Apache Hadoop" Changelog
+
+## Release 2.10.2 - 2022-05-31
+
+
+
+### IMPORTANT ISSUES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-17338](https://issues.apache.org/jira/browse/HADOOP-17338) | Intermittent S3AInputStream failures: Premature end of Content-Length delimited message body etc |  Major | fs/s3 | Yongjun Zhang | Yongjun Zhang |
+
+
+### NEW FEATURES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-12077](https://issues.apache.org/jira/browse/HADOOP-12077) | Provide a multi-URI replication Inode for ViewFs |  Major | fs | Gera Shegalov | Gera Shegalov |
+| [HADOOP-13055](https://issues.apache.org/jira/browse/HADOOP-13055) | Implement linkMergeSlash and linkFallback for ViewFileSystem |  Major | fs, viewfs | Zhe Zhang | Manoj Govindassamy |
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-13722](https://issues.apache.org/jira/browse/HADOOP-13722) | Code cleanup -- ViewFileSystem and InodeTree |  Minor | viewfs | Manoj Govindassamy | Manoj Govindassamy |
+| [YARN-1151](https://issues.apache.org/jira/browse/YARN-1151) | Ability to configure auxiliary services from HDFS-based JAR files |  Major | nodemanager | john lilley | Xuan Gong |
+| [HADOOP-15584](https://issues.apache.org/jira/browse/HADOOP-15584) | move httpcomponents version in pom.xml |  Minor | build | Brandon Scheller | Brandon Scheller |
+| [HADOOP-16208](https://issues.apache.org/jira/browse/HADOOP-16208) | Do Not Log InterruptedException in Client |  Minor | common | David Mollitor | David Mollitor |
+| [HADOOP-16052](https://issues.apache.org/jira/browse/HADOOP-16052) | Remove Subversion and Forrest from Dockerfile |  Minor | build | Akira Ajisaka | Xieming Li |
+| [YARN-10036](https://issues.apache.org/jira/browse/YARN-10036) | Install yarnpkg and upgrade nodejs in Dockerfile |  Major | buid, yarn-ui-v2 | Akira Ajisaka | Akira Ajisaka |
+| [HADOOP-16811](https://issues.apache.org/jira/browse/HADOOP-16811) | Use JUnit TemporaryFolder Rule in TestFileUtils |  Minor | common, test | David Mollitor | David Mollitor |
+| [HADOOP-16054](https://issues.apache.org/jira/browse/HADOOP-16054) | Update Dockerfile to use Bionic |  Major | build, test | Akira Ajisaka | Akira Ajisaka |
+| [YARN-10451](https://issues.apache.org/jira/browse/YARN-10451) | RM (v1) UI NodesPage can NPE when yarn.io/gpu resource type is defined. |  Major | . | Eric Payne | Eric Payne |
+| [YARN-9667](https://issues.apache.org/jira/browse/YARN-9667) | Container-executor.c duplicates messages to stdout |  Major | nodemanager, yarn | Adam Antal | Peter Bacsko |
+| [MAPREDUCE-7301](https://issues.apache.org/jira/browse/MAPREDUCE-7301) | Expose Mini MR Cluster attribute for testing |  Minor | test | Swaroopa Kadam | Swaroopa Kadam |
+| [HDFS-15567](https://issues.apache.org/jira/browse/HDFS-15567) | [SBN Read] HDFS should expose msync() API to allow downstream applications call it explicitly. |  Major | ha, hdfs-client | Konstantin Shvachko | Konstantin Shvachko |
+| [YARN-10450](https://issues.apache.org/jira/browse/YARN-10450) | Add cpu and memory utilization per node and cluster-wide metrics |  Minor | yarn | Jim Brennan | Jim Brennan |
+| [HDFS-15652](https://issues.apache.org/jira/browse/HDFS-15652) | Make block size from NNThroughputBenchmark configurable |  Minor | benchmarks | Hui Fei | Hui Fei |
+| [HDFS-15665](https://issues.apache.org/jira/browse/HDFS-15665) | Balancer logging improvement |  Major | balancer & mover | Konstantin Shvachko | Konstantin Shvachko |
+| [HADOOP-17342](https://issues.apache.org/jira/browse/HADOOP-17342) | Creating a token identifier should not do kerberos name resolution |  Major | common | Jim Brennan | Jim Brennan |
+| [YARN-10479](https://issues.apache.org/jira/browse/YARN-10479) | RMProxy should retry on SocketTimeout Exceptions |  Major | yarn | Jim Brennan | Jim Brennan |
+| [HDFS-15623](https://issues.apache.org/jira/browse/HDFS-15623) | Respect configured values of rpc.engine |  Major | hdfs | Hector Sandoval Chaverri | Hector Sandoval Chaverri |
+| [HDFS-15717](https://issues.apache.org/jira/browse/HDFS-15717) | Improve fsck logging |  Major | logging, namenode | Ahmed Hussein | Ahmed Hussein |
+| [HDFS-15751](https://issues.apache.org/jira/browse/HDFS-15751) | Add documentation for msync() API to filesystem.md |  Major | documentation | Konstantin Shvachko | Konstantin Shvachko |
+| [YARN-10562](https://issues.apache.org/jira/browse/YARN-10562) | Follow up changes for YARN-9833 |  Major | yarn | Jim Brennan | Jim Brennan |
+| [HADOOP-17478](https://issues.apache.org/jira/browse/HADOOP-17478) | Improve the description of hadoop.http.authentication.signature.secret.file |  Minor | documentation | Akira Ajisaka | Akira Ajisaka |
+| [HADOOP-17501](https://issues.apache.org/jira/browse/HADOOP-17501) | Fix logging typo in ShutdownHookManager |  Major | common | Konstantin Shvachko | Fengnan Li |
+| [HADOOP-17354](https://issues.apache.org/jira/browse/HADOOP-17354) | Move Jenkinsfile outside of the root directory |  Major | build | Akira Ajisaka | Akira Ajisaka |
+| [MAPREDUCE-7319](https://issues.apache.org/jira/browse/MAPREDUCE-7319) | Log list of mappers at trace level in ShuffleHandler audit log |  Minor | yarn | Jim Brennan | Jim Brennan |
+| [YARN-10626](https://issues.apache.org/jira/browse/YARN-10626) | Log resource allocation in NM log at container start time |  Major | . | Eric Badger | Eric Badger |
+| [YARN-10613](https://issues.apache.org/jira/browse/YARN-10613) | Config to allow Intra- and Inter-queue preemption to  enable/disable conservativeDRF |  Minor | capacity scheduler, scheduler preemption | Eric Payne | Eric Payne |
+| [MAPREDUCE-7324](https://issues.apache.org/jira/browse/MAPREDUCE-7324) | ClientHSSecurityInfo class is in wrong META-INF file |  Major | . | Eric Badger | Eric Badger |
+| [HADOOP-17546](https://issues.apache.org/jira/browse/HADOOP-17546) | Update Description of hadoop-http-auth-signature-secret in HttpAuthentication.md |  Minor | . | Ravuri Sushma sree | Ravuri Sushma sree |
+| [HADOOP-17570](https://issues.apache.org/jira/browse/HADOOP-17570) | Apply YETUS-1102 to re-enable GitHub comments |  Major | build | Akira Ajisaka | Akira Ajisaka |
+| [HADOOP-16870](https://issues.apache.org/jira/browse/HADOOP-16870) | Use spotbugs-maven-plugin instead of findbugs-maven-plugin |  Major | build | Akira Ajisaka | Akira Ajisaka |
+| [HDFS-15931](https://issues.apache.org/jira/browse/HDFS-15931) | Fix non-static inner classes for better memory management |  Major | . | Viraj Jasani | Viraj Jasani |
+| [HADOOP-17680](https://issues.apache.org/jira/browse/HADOOP-17680) | Allow ProtobufRpcEngine to be extensible |  Major | common | Hector Sandoval Chaverri | Hector Sandoval Chaverri |
+| [HADOOP-17756](https://issues.apache.org/jira/browse/HADOOP-17756) | Increase precommit job timeout from 20 hours to 24 hours. |  Major | build | Takanobu Asanuma | Takanobu Asanuma |
+| [HDFS-15150](https://issues.apache.org/jira/browse/HDFS-15150) | Introduce read write lock to Datanode |  Major | datanode | Stephen O'Donnell | Stephen O'Donnell |
+| [YARN-10834](https://issues.apache.org/jira/browse/YARN-10834) | Intra-queue preemption: apps that don't use defined custom resource won't be preempted. |  Major | . | Eric Payne | Eric Payne |
+| [HADOOP-17775](https://issues.apache.org/jira/browse/HADOOP-17775) | Remove JavaScript package from Docker environment |  Major | build | Masatake Iwasaki | Masatake Iwasaki |
+| [HADOOP-12665](https://issues.apache.org/jira/browse/HADOOP-12665) | Document hadoop.security.token.service.use\_ip |  Major | documentation | Arpit Agarwal | Akira Ajisaka |
+| [YARN-10456](https://issues.apache.org/jira/browse/YARN-10456) | RM PartitionQueueMetrics records are named QueueMetrics in Simon metrics registry |  Major | resourcemanager | Eric Payne | Eric Payne |
+| [YARN-10860](https://issues.apache.org/jira/browse/YARN-10860) | Make max container per heartbeat configs refreshable |  Major | . | Eric Badger | Eric Badger |
+| [HADOOP-17813](https://issues.apache.org/jira/browse/HADOOP-17813) | Checkstyle - Allow line length: 100 |  Major | . | Akira Ajisaka | Viraj Jasani |
+| [HADOOP-17819](https://issues.apache.org/jira/browse/HADOOP-17819) | Add extensions to ProtobufRpcEngine RequestHeaderProto |  Major | common | Hector Sandoval Chaverri | Hector Sandoval Chaverri |
+| [HADOOP-17897](https://issues.apache.org/jira/browse/HADOOP-17897) | Allow nested blocks in switch case in checkstyle settings |  Minor | build | Masatake Iwasaki | Masatake Iwasaki |
+| [HADOOP-17857](https://issues.apache.org/jira/browse/HADOOP-17857) | Check real user ACLs in addition to proxied user ACLs |  Major | . | Eric Payne | Eric Payne |
+| [HADOOP-17926](https://issues.apache.org/jira/browse/HADOOP-17926) | Maven-eclipse-plugin is no longer needed since Eclipse can import Maven projects by itself. |  Minor | documentation | Rintaro Ikeda | Rintaro Ikeda |
+| [YARN-10935](https://issues.apache.org/jira/browse/YARN-10935) | AM Total Queue Limit goes below per-user AM Limit if parent is full. |  Major | capacity scheduler, capacityscheduler | Eric Payne | Eric Payne |
+| [HDFS-16257](https://issues.apache.org/jira/browse/HDFS-16257) | [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver |  Major | . | Janus Chow | Janus Chow |
+| [YARN-1115](https://issues.apache.org/jira/browse/YARN-1115) | Provide optional means for a scheduler to check real user ACLs |  Major | capacity scheduler, scheduler | Eric Payne |  |
+| [HDFS-16294](https://issues.apache.org/jira/browse/HDFS-16294) | Remove invalid DataNode#CONFIG\_PROPERTY\_SIMULATED |  Major | datanode | JiangHua Zhu | JiangHua Zhu |
+| [HDFS-16301](https://issues.apache.org/jira/browse/HDFS-16301) | Improve BenchmarkThroughput#SIZE naming standardization |  Minor | benchmarks, test | JiangHua Zhu | JiangHua Zhu |
+| [HADOOP-18035](https://issues.apache.org/jira/browse/HADOOP-18035) | Skip unit test failures to run all the unit tests |  Major | build | Akira Ajisaka | Akira Ajisaka |
+| [HADOOP-18040](https://issues.apache.org/jira/browse/HADOOP-18040) | Use maven.test.failure.ignore instead of ignoreTestFailure |  Major | build | Akira Ajisaka | Akira Ajisaka |
+| [YARN-8234](https://issues.apache.org/jira/browse/YARN-8234) | Improve RM system metrics publisher's performance by pushing events to timeline server in batch |  Critical | resourcemanager, timelineserver | Hu Ziqian | Ashutosh Gupta |
+| [HADOOP-18093](https://issues.apache.org/jira/browse/HADOOP-18093) | Better exception handling for testFileStatusOnMountLink() in ViewFsBaseTest.java |  Trivial | . | Xing Lin | Xing Lin |
+| [HADOOP-18099](https://issues.apache.org/jira/browse/HADOOP-18099) | Upgrade bundled Tomcat to 8.5.75 |  Major | httpfs, kms | Akira Ajisaka | Ashutosh Gupta |
+| [HADOOP-18110](https://issues.apache.org/jira/browse/HADOOP-18110) | ViewFileSystem: Add Support for Localized Trash Root |  Major | common | Xing Lin | Xing Lin |
+| [HADOOP-18144](https://issues.apache.org/jira/browse/HADOOP-18144) | getTrashRoot/s in ViewFileSystem should return viewFS path, not targetFS path |  Major | common | Xing Lin | Xing Lin |
+| [HADOOP-18136](https://issues.apache.org/jira/browse/HADOOP-18136) | Verify FileUtils.unTar() handling of missing .tar files |  Minor | test, util | Steve Loughran | Steve Loughran |
+| [HDFS-16529](https://issues.apache.org/jira/browse/HDFS-16529) | Remove unnecessary setObserverRead in TestConsistentReadsObserver |  Trivial | test | wangzhaohui | wangzhaohui |
+| [HADOOP-18155](https://issues.apache.org/jira/browse/HADOOP-18155) | Refactor tests in TestFileUtil |  Trivial | common | Gautham Banasandra | Gautham Banasandra |
+| [HADOOP-18088](https://issues.apache.org/jira/browse/HADOOP-18088) | Replace log4j 1.x with reload4j |  Major | . | Wei-Chiu Chuang | Wei-Chiu Chuang |
+| [YARN-11125](https://issues.apache.org/jira/browse/YARN-11125) | Backport YARN-6483 to branch-2.10 |  Major | resourcemanager | Ashutosh Gupta | Ashutosh Gupta |
+| [HADOOP-18172](https://issues.apache.org/jira/browse/HADOOP-18172) | Change scope of getRootFallbackLink for InodeTree to make them accessible from outside package |  Minor | . | Xing Lin | Xing Lin |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-10650](https://issues.apache.org/jira/browse/HDFS-10650) | DFSClient#mkdirs and DFSClient#primitiveMkdir should use default directory permission |  Minor | . | John Zhuge | John Zhuge |
+| [HADOOP-13965](https://issues.apache.org/jira/browse/HADOOP-13965) | Groups should be consistent in using default group mapping class |  Minor | security | Yiqun Lin | Yiqun Lin |
+| [YARN-6977](https://issues.apache.org/jira/browse/YARN-6977) | Node information is not provided for non am containers in RM logs |  Major | capacity scheduler | Sumana Sathish | Suma Shivaprasad |
+| [HADOOP-15261](https://issues.apache.org/jira/browse/HADOOP-15261) | Upgrade commons-io from 2.4 to 2.5 |  Major | minikdc | PandaMonkey | PandaMonkey |
+| [HADOOP-15331](https://issues.apache.org/jira/browse/HADOOP-15331) | Fix a race condition causing parsing error of java.io.BufferedInputStream in class org.apache.hadoop.conf.Configuration |  Major | common | Miklos Szegedi | Miklos Szegedi |
+| [YARN-8222](https://issues.apache.org/jira/browse/YARN-8222) | Fix potential NPE when gets RMApp from RM context |  Critical | . | Tao Yang | Tao Yang |
+| [HDFS-13174](https://issues.apache.org/jira/browse/HDFS-13174) | hdfs mover -p /path times out after 20 min |  Major | balancer & mover | István Fajth | István Fajth |
+| [HDFS-13723](https://issues.apache.org/jira/browse/HDFS-13723) | Occasional "Should be different group" error in TestRefreshUserMappings#testGroupMappingRefresh |  Major | security, test | Siyao Meng | Siyao Meng |
+| [YARN-7266](https://issues.apache.org/jira/browse/YARN-7266) | Timeline Server event handler threads locked |  Major | ATSv2, timelineserver | Venkata Puneet Ravuri | Prabhu Joseph |
+| [HDFS-13677](https://issues.apache.org/jira/browse/HDFS-13677) | Dynamic refresh Disk configuration results in overwriting VolumeMap |  Blocker | . | ZanderXu | ZanderXu |
+| [HADOOP-16334](https://issues.apache.org/jira/browse/HADOOP-16334) | Fix yetus-wrapper not working when HADOOP\_YETUS\_VERSION \>= 0.9.0 |  Major | yetus | Wanqiang Ji | Wanqiang Ji |
+| [YARN-9594](https://issues.apache.org/jira/browse/YARN-9594) | Fix missing break statement in ContainerScheduler#handle |  Major | . | lujie | lujie |
+| [YARN-9744](https://issues.apache.org/jira/browse/YARN-9744) | RollingLevelDBTimelineStore.getEntityByTime fails with NPE |  Major | timelineserver | Prabhu Joseph | Prabhu Joseph |
+| [YARN-9785](https://issues.apache.org/jira/browse/YARN-9785) | Fix DominantResourceCalculator when one resource is zero |  Blocker | . | Bilwa S T | Bilwa S T |
+| [YARN-9833](https://issues.apache.org/jira/browse/YARN-9833) | Race condition when DirectoryCollection.checkDirs() runs during container launch |  Major | . | Peter Bacsko | Peter Bacsko |
+| [HDFS-14216](https://issues.apache.org/jira/browse/HDFS-14216) | NullPointerException happens in NamenodeWebHdfs |  Critical | . | lujie | lujie |
+| [YARN-9984](https://issues.apache.org/jira/browse/YARN-9984) | FSPreemptionThread can cause NullPointerException while app is unregistered with containers running on a node |  Major | fairscheduler | Wilfred Spiegelenburg | Wilfred Spiegelenburg |
+| [HADOOP-16841](https://issues.apache.org/jira/browse/HADOOP-16841) | The description of hadoop.http.authentication.signature.secret.file contains outdated information |  Minor | documentation | Akira Ajisaka | Xieming Li |
+| [HADOOP-16768](https://issues.apache.org/jira/browse/HADOOP-16768) | SnappyCompressor test cases wrongly assume that the compressed data is always smaller than the input data |  Major | io, test | zhao bo | Akira Ajisaka |
+| [HADOOP-17068](https://issues.apache.org/jira/browse/HADOOP-17068) | client fails forever when namenode ipaddr changed |  Major | hdfs-client | Sean Chow | Sean Chow |
+| [HADOOP-17116](https://issues.apache.org/jira/browse/HADOOP-17116) | Skip Retry INFO logging on first failover from a proxy |  Major | ha | Hanisha Koneru | Hanisha Koneru |
+| [MAPREDUCE-7294](https://issues.apache.org/jira/browse/MAPREDUCE-7294) | Only application master should upload resource to Yarn Shared Cache |  Major | mrv2 | zhenzhao wang | zhenzhao wang |
+| [YARN-10438](https://issues.apache.org/jira/browse/YARN-10438) | Handle null containerId in ClientRMService#getContainerReport() |  Major | resourcemanager | Raghvendra Singh | Shubham Gupta |
+| [MAPREDUCE-7289](https://issues.apache.org/jira/browse/MAPREDUCE-7289) | Fix wrong comment in LongLong.java |  Trivial | documentation, examples | Akira Ajisaka | Wanqiang Ji |
+| [YARN-10393](https://issues.apache.org/jira/browse/YARN-10393) | MR job live lock caused by completed state container leak in heartbeat between node manager and RM |  Major | nodemanager, yarn | zhenzhao wang | Jim Brennan |
+| [YARN-10455](https://issues.apache.org/jira/browse/YARN-10455) | TestNMProxy.testNMProxyRPCRetry is not consistent |  Major | . | Ahmed Hussein | Ahmed Hussein |
+| [HADOOP-17223](https://issues.apache.org/jira/browse/HADOOP-17223) | update  org.apache.httpcomponents:httpclient to 4.5.13 and httpcore to 4.4.13 |  Blocker | . | Pranav Bheda | Pranav Bheda |
+| [HADOOP-17309](https://issues.apache.org/jira/browse/HADOOP-17309) | Javadoc warnings and errors are ignored in the precommit jobs |  Major | build, documentation | Akira Ajisaka | Akira Ajisaka |
+| [MAPREDUCE-7302](https://issues.apache.org/jira/browse/MAPREDUCE-7302) | Upgrading to JUnit 4.13 causes testcase TestFetcher.testCorruptedIFile() to fail |  Major | test | Peter Bacsko | Peter Bacsko |
+| [HDFS-15644](https://issues.apache.org/jira/browse/HDFS-15644) | Failed volumes can cause DNs to stop block reporting |  Major | block placement, datanode | Ahmed Hussein | Ahmed Hussein |
+| [YARN-10467](https://issues.apache.org/jira/browse/YARN-10467) | ContainerIdPBImpl objects can be leaked in RMNodeImpl.completedContainers |  Major | resourcemanager | Haibo Chen | Haibo Chen |
+| [HADOOP-17340](https://issues.apache.org/jira/browse/HADOOP-17340) | TestLdapGroupsMapping failing -string mismatch in exception validation |  Major | test | Steve Loughran | Steve Loughran |
+| [HADOOP-17352](https://issues.apache.org/jira/browse/HADOOP-17352) | Update PATCH\_NAMING\_RULE in the personality file |  Minor | build | Akira Ajisaka | Akira Ajisaka |
+| [HADOOP-17358](https://issues.apache.org/jira/browse/HADOOP-17358) | Improve excessive reloading of Configurations |  Major | conf | Ahmed Hussein | Ahmed Hussein |
+| [YARN-8558](https://issues.apache.org/jira/browse/YARN-8558) | NM recovery level db not cleaned up properly on container finish |  Critical | . | Bibin Chundatt | Bibin Chundatt |
+| [YARN-10498](https://issues.apache.org/jira/browse/YARN-10498) | Fix Yarn CapacityScheduler Markdown document |  Trivial | documentation | zhaoshengjie | zhaoshengjie |
+| [HDFS-15660](https://issues.apache.org/jira/browse/HDFS-15660) | StorageTypeProto is not compatiable between 3.x and 2.6 |  Major | . | Ryan Wu | Ryan Wu |
+| [HDFS-15725](https://issues.apache.org/jira/browse/HDFS-15725) | Lease Recovery never completes for a committed block which the DNs never finalize |  Major | namenode | Stephen O'Donnell | Stephen O'Donnell |
+| [HADOOP-17438](https://issues.apache.org/jira/browse/HADOOP-17438) | Increase docker memory limit in Jenkins |  Major | build, scripts, test, yetus | Ahmed Hussein | Ahmed Hussein |
+| [HADOOP-16947](https://issues.apache.org/jira/browse/HADOOP-16947) | Stale record should be remove when MutableRollingAverages generating aggregate data. |  Major | . | Haibin Huang | Haibin Huang |
+| [HDFS-15632](https://issues.apache.org/jira/browse/HDFS-15632) | AbstractContractDeleteTest should set recursive parameter to true for recursive test cases. |  Major | . | Konstantin Shvachko | Anton Kutuzov |
+| [HDFS-10498](https://issues.apache.org/jira/browse/HDFS-10498) | Intermittent test failure org.apache.hadoop.hdfs.server.namenode.snapshot.TestSnapshotFileLength.testSnapshotfileLength |  Major | hdfs, snapshots | Hanisha Koneru | Jim Brennan |
+| [HADOOP-17495](https://issues.apache.org/jira/browse/HADOOP-17495) | Backport HADOOP-16947 "Stale record should be remove when MutableRollingAverages generating aggregate data." to branch 2.10 |  Major | . | Felix N | Felix N |
+| [HDFS-15801](https://issues.apache.org/jira/browse/HDFS-15801) | Backport HDFS-14582 to branch-2.10 (Failed to start DN with ArithmeticException when NULL checksum used) |  Major | . | Janus Chow | Janus Chow |
+| [YARN-10428](https://issues.apache.org/jira/browse/YARN-10428) | Zombie applications in the YARN queue using FAIR + sizebasedweight |  Critical | capacityscheduler | Guang Yang | Andras Gyori |
+| [HDFS-15792](https://issues.apache.org/jira/browse/HDFS-15792) | ClasscastException while loading FSImage |  Major | nn | Renukaprasad C | Renukaprasad C |
+| [HADOOP-17516](https://issues.apache.org/jira/browse/HADOOP-17516) | Upgrade ant to 1.10.9 |  Major | . | Akira Ajisaka | Akira Ajisaka |
+| [YARN-10500](https://issues.apache.org/jira/browse/YARN-10500) | TestDelegationTokenRenewer fails intermittently |  Major | test | Akira Ajisaka | Masatake Iwasaki |
+| [MAPREDUCE-7323](https://issues.apache.org/jira/browse/MAPREDUCE-7323) | Remove job\_history\_summary.py |  Major | . | Akira Ajisaka | Akira Ajisaka |
+| [HADOOP-17510](https://issues.apache.org/jira/browse/HADOOP-17510) | Hadoop prints sensitive Cookie information. |  Major | . | Renukaprasad C | Renukaprasad C |
+| [HDFS-15422](https://issues.apache.org/jira/browse/HDFS-15422) | Reported IBR is partially replaced with stored info when queuing. |  Critical | namenode | Kihwal Lee | Stephen O'Donnell |
+| [YARN-10651](https://issues.apache.org/jira/browse/YARN-10651) | CapacityScheduler crashed with NPE in AbstractYarnScheduler.updateNodeResource() |  Major | . | Haibo Chen | Haibo Chen |
+| [MAPREDUCE-7320](https://issues.apache.org/jira/browse/MAPREDUCE-7320) | ClusterMapReduceTestCase does not clean directories |  Major | . | Ahmed Hussein | Ahmed Hussein |
+| [HDFS-15849](https://issues.apache.org/jira/browse/HDFS-15849) | ExpiredHeartbeats metric should be of Type.COUNTER |  Major | metrics | Konstantin Shvachko | Qi Zhu |
+| [HADOOP-17557](https://issues.apache.org/jira/browse/HADOOP-17557) | skip-dir option is not processed by Yetus |  Major | build, precommit, yetus | Ahmed Hussein | Ahmed Hussein |
+| [HADOOP-17572](https://issues.apache.org/jira/browse/HADOOP-17572) | [branch-2.10] Docker image build fails due to the removal of openjdk-7-jdk package |  Blocker | build | Akira Ajisaka | Akira Ajisaka |
+| [HADOOP-17582](https://issues.apache.org/jira/browse/HADOOP-17582) | Replace GitHub App Token with GitHub OAuth token |  Major | build | Akira Ajisaka | Akira Ajisaka |
+| [HADOOP-17586](https://issues.apache.org/jira/browse/HADOOP-17586) | Upgrade org.codehaus.woodstox:stax2-api to 4.2.1 |  Major | . | Ayush Saxena | Ayush Saxena |
+| [YARN-10588](https://issues.apache.org/jira/browse/YARN-10588) | Percentage of queue and cluster is zero in WebUI |  Major | . | Bilwa S T | Bilwa S T |
+| [MAPREDUCE-7322](https://issues.apache.org/jira/browse/MAPREDUCE-7322) | revisiting TestMRIntermediateDataEncryption |  Major | job submission, security, test | Ahmed Hussein | Ahmed Hussein |
+| [HADOOP-17592](https://issues.apache.org/jira/browse/HADOOP-17592) | Fix the wrong CIDR range example in Proxy User documentation |  Minor | documentation | Kwangsun Noh | Kwangsun Noh |
+| [MAPREDUCE-7325](https://issues.apache.org/jira/browse/MAPREDUCE-7325) | Intermediate data encryption is broken in LocalJobRunner |  Major | job submission, security | Ahmed Hussein | Ahmed Hussein |
+| [YARN-10697](https://issues.apache.org/jira/browse/YARN-10697) | Resources are displayed in bytes in UI for schedulers other than capacity |  Major | . | Bilwa S T | Bilwa S T |
+| [HADOOP-17602](https://issues.apache.org/jira/browse/HADOOP-17602) | Upgrade JUnit to 4.13.1 |  Major | build, security, test | Ahmed Hussein | Ahmed Hussein |
+| [MAPREDUCE-7332](https://issues.apache.org/jira/browse/MAPREDUCE-7332) | Fix SpillCallBackPathsFinder to use JDK7 on branch-2.10 |  Minor | job submission, security | Ahmed Hussein | Ahmed Hussein |
+| [YARN-10501](https://issues.apache.org/jira/browse/YARN-10501) | Can't remove all node labels after add node label without nodemanager port |  Critical | yarn | caozhiqiang | caozhiqiang |
+| [YARN-10716](https://issues.apache.org/jira/browse/YARN-10716) | Fix typo in ContainerRuntime |  Trivial | documentation | Wanqiang Ji | xishuhai |
+| [HADOOP-17603](https://issues.apache.org/jira/browse/HADOOP-17603) | Upgrade tomcat-embed-core to 7.0.108 |  Major | build, security | Ahmed Hussein | Ahmed Hussein |
+| [HADOOP-17601](https://issues.apache.org/jira/browse/HADOOP-17601) | Upgrade Jackson databind in branch-2.10 to 2.9.10.7 |  Major | . | Ahmed Hussein | Ahmed Hussein |
+| [YARN-10733](https://issues.apache.org/jira/browse/YARN-10733) | TimelineService Hbase tests are failing with timeout error on branch-2.10 |  Major | test, timelineserver, yarn | Ahmed Hussein | Ahmed Hussein |
+| [HDFS-15963](https://issues.apache.org/jira/browse/HDFS-15963) | Unreleased volume references cause an infinite loop |  Critical | datanode | Shuyan Zhang | Shuyan Zhang |
+| [YARN-10460](https://issues.apache.org/jira/browse/YARN-10460) | Upgrading to JUnit 4.13 causes tests in TestNodeStatusUpdater to fail |  Major | nodemanager, test | Peter Bacsko | Peter Bacsko |
+| [YARN-10749](https://issues.apache.org/jira/browse/YARN-10749) | Can't remove all node labels after add node label without nodemanager port, broken by YARN-10647 |  Major | . | D M Murali Krishna Reddy | D M Murali Krishna Reddy |
+| [YARN-10555](https://issues.apache.org/jira/browse/YARN-10555) |  Missing access check before getAppAttempts |  Critical | webapp | lujie | lujie |
+| [HADOOP-17718](https://issues.apache.org/jira/browse/HADOOP-17718) | Explicitly set locale in the Dockerfile |  Blocker | build | Wei-Chiu Chuang | Wei-Chiu Chuang |
+| [YARN-10770](https://issues.apache.org/jira/browse/YARN-10770) | container-executor permission is wrong in SecureContainer.md |  Major | documentation | Akira Ajisaka | Siddharth Ahuja |
+| [HDFS-15915](https://issues.apache.org/jira/browse/HDFS-15915) | Race condition with async edits logging due to updating txId outside of the namesystem log |  Major | hdfs, namenode | Konstantin Shvachko | Konstantin Shvachko |
+| [HDFS-16040](https://issues.apache.org/jira/browse/HDFS-16040) | RpcQueueTime metric counts requeued calls as unique events. |  Major | hdfs | Simbarashe Dzinamarira | Simbarashe Dzinamarira |
+| [HDFS-16068](https://issues.apache.org/jira/browse/HDFS-16068) | WebHdfsFileSystem has a possible connection leak in connection with HttpFS |  Major | . | Takanobu Asanuma | Takanobu Asanuma |
+| [HDFS-15618](https://issues.apache.org/jira/browse/HDFS-15618) | Improve datanode shutdown latency |  Major | datanode | Ahmed Hussein | Ahmed Hussein |
+| [HADOOP-17769](https://issues.apache.org/jira/browse/HADOOP-17769) | Upgrade JUnit to 4.13.2 |  Major | . | Ahmed Hussein | Ahmed Hussein |
+| [YARN-10824](https://issues.apache.org/jira/browse/YARN-10824) | Title not set for JHS and NM webpages |  Major | . | Rajshree Mishra | Bilwa S T |
+| [MAPREDUCE-7353](https://issues.apache.org/jira/browse/MAPREDUCE-7353) | Mapreduce job fails when NM is stopped |  Major | . | Bilwa S T | Bilwa S T |
+| [HADOOP-17793](https://issues.apache.org/jira/browse/HADOOP-17793) | Better token validation |  Major | . | Artem Smotrakov | Artem Smotrakov |
+| [HDFS-16042](https://issues.apache.org/jira/browse/HDFS-16042) | DatanodeAdminMonitor scan should be delay based |  Major | datanode | Ahmed Hussein | Ahmed Hussein |
+| [HADOOP-17028](https://issues.apache.org/jira/browse/HADOOP-17028) | ViewFS should initialize target filesystems lazily |  Major | client-mounts, fs, viewfs | Uma Maheswara Rao G | Abhishek Das |
+| [HADOOP-17370](https://issues.apache.org/jira/browse/HADOOP-17370) | Upgrade commons-compress to 1.21 |  Major | common | Dongjoon Hyun | Akira Ajisaka |
+| [HADOOP-17886](https://issues.apache.org/jira/browse/HADOOP-17886) | Upgrade ant to 1.10.11 |  Major | . | Ahmed Hussein | Ahmed Hussein |
+| [HADOOP-17885](https://issues.apache.org/jira/browse/HADOOP-17885) | Upgrade JSON smart to 1.3.3 on branch-2.10 |  Major | . | Ahmed Hussein | Ahmed Hussein |
+| [HDFS-16207](https://issues.apache.org/jira/browse/HDFS-16207) | Remove NN logs stack trace for non-existent xattr query |  Major | namenode | Ahmed Hussein | Ahmed Hussein |
+| [HDFS-16198](https://issues.apache.org/jira/browse/HDFS-16198) | Short circuit read leaks Slot objects when InvalidToken exception is thrown |  Major | . | Eungsop Yoo | Eungsop Yoo |
+| [HDFS-16233](https://issues.apache.org/jira/browse/HDFS-16233) | Do not use exception handler to implement copy-on-write for EnumCounters |  Major | namenode | Wei-Chiu Chuang | Wei-Chiu Chuang |
+| [HDFS-16181](https://issues.apache.org/jira/browse/HDFS-16181) | [SBN Read] Fix metric of RpcRequestCacheMissAmount can't display when tailEditLog form JN |  Critical | . | wangzhaohui | wangzhaohui |
+| [YARN-8127](https://issues.apache.org/jira/browse/YARN-8127) | Resource leak when async scheduling is enabled |  Critical | . | Weiwei Yang | Tao Yang |
+| [HADOOP-17964](https://issues.apache.org/jira/browse/HADOOP-17964) | Increase Java heap size for running Maven in Dockerfile of branch-2.10 |  Major | build | Masatake Iwasaki | Masatake Iwasaki |
+| [HADOOP-16532](https://issues.apache.org/jira/browse/HADOOP-16532) | Fix TestViewFsTrash to use the correct homeDir. |  Minor | test, viewfs | Steve Loughran | Xing Lin |
+| [HADOOP-17965](https://issues.apache.org/jira/browse/HADOOP-17965) | Fix documentation build failure using JDK 7 on branch-2.10 |  Major | build | Masatake Iwasaki | Masatake Iwasaki |
+| [HDFS-7612](https://issues.apache.org/jira/browse/HDFS-7612) | TestOfflineEditsViewer.testStored() uses incorrect default value for cacheDir |  Major | test | Konstantin Shvachko | Michael Kuchenbecker |
+| [HADOOP-17978](https://issues.apache.org/jira/browse/HADOOP-17978) | Exclude ASF license check for pkg-resolver JSON |  Major | build | Gautham Banasandra | Gautham Banasandra |
+| [HADOOP-17880](https://issues.apache.org/jira/browse/HADOOP-17880) | Build Hadoop on Centos 7 |  Major | build | baizhendong |  |
+| [HADOOP-17988](https://issues.apache.org/jira/browse/HADOOP-17988) | Disable JIRA plugin for YETUS on Hadoop |  Critical | build | Gautham Banasandra | Gautham Banasandra |
+| [HDFS-16311](https://issues.apache.org/jira/browse/HDFS-16311) | Metric metadataOperationRate calculation error in DataNodeVolumeMetrics |  Major | . | Tao Li | Tao Li |
+| [HADOOP-17999](https://issues.apache.org/jira/browse/HADOOP-17999) | No-op implementation of setWriteChecksum and setVerifyChecksum in ViewFileSystem |  Major | . | Abhishek Das | Abhishek Das |
+| [YARN-9063](https://issues.apache.org/jira/browse/YARN-9063) | ATS 1.5 fails to start if RollingLevelDb files are corrupt or missing |  Major | timelineserver, timelineservice | Tarun Parimi | Ashutosh Gupta |
+| [HADOOP-18049](https://issues.apache.org/jira/browse/HADOOP-18049) | Pin python lazy-object-proxy to 1.6.0 in Docker file as newer versions are incompatible with python2.7 |  Major | build | Dhananjay Badaya | Dhananjay Badaya |
+| [HADOOP-13500](https://issues.apache.org/jira/browse/HADOOP-13500) | Synchronizing iteration of Configuration properties object |  Major | conf | Jason Darrell Lowe | Dhananjay Badaya |
+| [YARN-10178](https://issues.apache.org/jira/browse/YARN-10178) | Global Scheduler async thread crash caused by 'Comparison method violates its general contract |  Major | capacity scheduler | tuyu | Andras Gyori |
+| [HDFS-16410](https://issues.apache.org/jira/browse/HDFS-16410) | Insecure Xml parsing in OfflineEditsXmlLoader |  Minor | . | Ashutosh Gupta | Ashutosh Gupta |
+| [HADOOP-18158](https://issues.apache.org/jira/browse/HADOOP-18158) | Fix failure of create-release script due to releasedocmaker changes in branch-2.10 |  Major | build | Masatake Iwasaki | Masatake Iwasaki |
+| [HADOOP-18129](https://issues.apache.org/jira/browse/HADOOP-18129) | Change URI[] in INodeLink to String[] to reduce memory footprint of ViewFileSystem |  Major | . | Abhishek Das | Abhishek Das |
+| [HDFS-16517](https://issues.apache.org/jira/browse/HDFS-16517) | In 2.10 the distance metric is wrong for non-DN machines |  Major | . | Owen O'Malley | Owen O'Malley |
+| [HDFS-16518](https://issues.apache.org/jira/browse/HDFS-16518) | KeyProviderCache close cached KeyProvider with Hadoop ShutdownHookManager |  Major | hdfs | Lei Yang | Lei Yang |
+| [HADOOP-18169](https://issues.apache.org/jira/browse/HADOOP-18169) | getDelegationTokens in ViewFs should also fetch the token from the fallback FS |  Major | . | Xing Lin | Xing Lin |
+| [YARN-10720](https://issues.apache.org/jira/browse/YARN-10720) | YARN WebAppProxyServlet should support connection timeout to prevent proxy server from hanging |  Critical | . | Qi Zhu | Qi Zhu |
+| [HDFS-11041](https://issues.apache.org/jira/browse/HDFS-11041) | Unable to unregister FsDatasetState MBean if DataNode is shutdown twice |  Trivial | datanode | Wei-Chiu Chuang | Wei-Chiu Chuang |
+| [MAPREDUCE-7246](https://issues.apache.org/jira/browse/MAPREDUCE-7246) |  In MapredAppMasterRest#Mapreduce\_Application\_Master\_Info\_API, the datatype of appId should be "string". |  Major | documentation | jenny | Ashutosh Gupta |
+| [YARN-11126](https://issues.apache.org/jira/browse/YARN-11126) | ZKConfigurationStore Java deserialisation vulnerability |  Major | yarn | Tamas Domok | Tamas Domok |
+| [YARN-11162](https://issues.apache.org/jira/browse/YARN-11162) | Set the zk acl for nodes created by ZKConfigurationStore. |  Major | resourcemanager | Owen O'Malley | Owen O'Malley |
+
+
+### 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 | . | Christopher Douglas | Christopher Douglas |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-15133](https://issues.apache.org/jira/browse/HADOOP-15133) | [JDK9] Ignore com.sun.javadoc.\* and com.sun.tools.\* in animal-sniffer-maven-plugin to compile with Java 9 |  Major | . | Akira Ajisaka | Akira Ajisaka |
+| [HADOOP-15293](https://issues.apache.org/jira/browse/HADOOP-15293) | TestLogLevel fails on Java 9 |  Major | test | Akira Ajisaka | Takanobu Asanuma |
+| [HADOOP-15513](https://issues.apache.org/jira/browse/HADOOP-15513) | Add additional test cases to cover some corner cases for FileUtil#symlink |  Major | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola |
+| [HADOOP-15783](https://issues.apache.org/jira/browse/HADOOP-15783) | [JDK10] TestSFTPFileSystem.testGetModifyTime fails |  Major | . | Akira Ajisaka | Akira Ajisaka |
+| [HADOOP-16764](https://issues.apache.org/jira/browse/HADOOP-16764) | Rewrite Python example codes using Python3 |  Minor | documentation | Kengo Seki | Kengo Seki |
+| [HADOOP-16767](https://issues.apache.org/jira/browse/HADOOP-16767) | S3AInputStream reopening does not handle non IO exceptions properly |  Major | . | Sergei Poganshev | Sergei Poganshev |
+| [HADOOP-17336](https://issues.apache.org/jira/browse/HADOOP-17336) | Backport HADOOP-16005-"NativeAzureFileSystem does not support setXAttr" and HADOOP-16785. "Improve wasb and abfs resilience on double close() calls. followup to abfs close() fix." to branch-2.10 |  Major | fs/azure | Sally Zuo | Sally Zuo |
+| [HDFS-15716](https://issues.apache.org/jira/browse/HDFS-15716) | TestUpgradeDomainBlockPlacementPolicy flaky |  Major | namenode, test | Ahmed Hussein | Ahmed Hussein |
+| [HADOOP-16748](https://issues.apache.org/jira/browse/HADOOP-16748) | Migrate to Python 3 and upgrade Yetus to 0.13.0 |  Major | . | Akira Ajisaka | Akira Ajisaka |
+| [HDFS-13975](https://issues.apache.org/jira/browse/HDFS-13975) | TestBalancer#testMaxIterationTime fails sporadically |  Major | . | Jason Darrell Lowe | Toshihiko Uchida |
+| [HDFS-16072](https://issues.apache.org/jira/browse/HDFS-16072) | TestBlockRecovery fails consistently on Branch-2.10 |  Major | datanode, test | Ahmed Hussein | Ahmed Hussein |
+| [HDFS-15659](https://issues.apache.org/jira/browse/HDFS-15659) | Set dfs.namenode.redundancy.considerLoad to false in MiniDFSCluster |  Major | test | Akira Ajisaka | Ahmed Hussein |
+| [HADOOP-17952](https://issues.apache.org/jira/browse/HADOOP-17952) | Replace Guava VisibleForTesting by Hadoop's own annotation in hadoop-common-project modules |  Major | . | Viraj Jasani | Viraj Jasani |
+| [YARN-8546](https://issues.apache.org/jira/browse/YARN-8546) | Resource leak caused by a reserved container being released more than once under async scheduling |  Major | capacity scheduler | Weiwei Yang | Tao Yang |
+| [HDFS-13248](https://issues.apache.org/jira/browse/HDFS-13248) | RBF: Namenode need to choose block location for the client |  Major | . | Wu Weiwei | Owen O'Malley |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-15808](https://issues.apache.org/jira/browse/HDFS-15808) | Add metrics for FSNamesystem read/write lock hold long time |  Major | hdfs | Tao Li | Tao Li |
+| [HDFS-16298](https://issues.apache.org/jira/browse/HDFS-16298) | Improve error msg for BlockMissingException |  Minor | . | Tao Li | Tao Li |
+| [HDFS-16312](https://issues.apache.org/jira/browse/HDFS-16312) | Fix typo for DataNodeVolumeMetrics and ProfilingFileIoEvents |  Minor | . | Tao Li | Tao Li |
+| [YARN-10540](https://issues.apache.org/jira/browse/YARN-10540) | Node page is broken in YARN UI1 and UI2 including RMWebService api for nodes |  Critical | webapp | Sunil G | Jim Brennan |
+| [HADOOP-17445](https://issues.apache.org/jira/browse/HADOOP-17445) | Update the year to 2021 |  Major | . | Xiaoqiao He | Xiaoqiao He |
+| [HADOOP-17571](https://issues.apache.org/jira/browse/HADOOP-17571) | Upgrade com.fasterxml.woodstox:woodstox-core for security reasons |  Major | . | Viraj Jasani | Viraj Jasani |
+| [HDFS-15895](https://issues.apache.org/jira/browse/HDFS-15895) | DFSAdmin#printOpenFiles has redundant String#format usage |  Minor | . | Viraj Jasani | Viraj Jasani |
+| [HADOOP-18061](https://issues.apache.org/jira/browse/HADOOP-18061) | Update the year to 2022 |  Major | . | Ayush Saxena | Ayush Saxena |
+| [HADOOP-18191](https://issues.apache.org/jira/browse/HADOOP-18191) | Log retry count while handling exceptions in RetryInvocationHandler |  Minor | . | Viraj Jasani | Viraj Jasani |
+| [HADOOP-18125](https://issues.apache.org/jira/browse/HADOOP-18125) | Utility to identify git commit / Jira fixVersion discrepancies for RC preparation |  Major | . | Viraj Jasani | Viraj Jasani |
+| [HDFS-16551](https://issues.apache.org/jira/browse/HDFS-16551) | Backport HADOOP-17588 to 3.3 and other active old branches. |  Major | . | Renukaprasad C | Renukaprasad C |
+
+

hadoop-common-project/hadoop-common/src/site/markdown/release/2.10.2/RELEASENOTES.2.10.2.md

@@ -0,0 +1,102 @@
+
+<!---
+# 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"  2.10.2 Release Notes
+
+These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
+
+
+---
+
+* [HDFS-10650](https://issues.apache.org/jira/browse/HDFS-10650) | *Minor* | **DFSClient#mkdirs and DFSClient#primitiveMkdir should use default directory permission**
+
+If the caller does not supply a permission, DFSClient#mkdirs and DFSClient#primitiveMkdir will create a new directory with the default directory permission 00777 now, instead of 00666.
+
+
+---
+
+* [HDFS-13174](https://issues.apache.org/jira/browse/HDFS-13174) | *Major* | **hdfs mover -p /path times out after 20 min**
+
+Mover could have fail after 20+ minutes if a block move was enqueued for this long, between two DataNodes due to an internal constant that was introduced for Balancer, but affected Mover as well.
+The internal constant can be configured with the dfs.balancer.max-iteration-time parameter after the patch, and affects only the Balancer. Default is 20 minutes.
+
+
+---
+
+* [YARN-10036](https://issues.apache.org/jira/browse/YARN-10036) | *Major* | **Install yarnpkg and upgrade nodejs in Dockerfile**
+
+In the Dockerfile, nodejs is upgraded to 8.17.0 and yarn 1.12.1 is installed.
+
+
+---
+
+* [HADOOP-16054](https://issues.apache.org/jira/browse/HADOOP-16054) | *Major* | **Update Dockerfile to use Bionic**
+
+The build image has been upgraded to Bionic.
+
+
+---
+
+* [HADOOP-17338](https://issues.apache.org/jira/browse/HADOOP-17338) | *Major* | **Intermittent S3AInputStream failures: Premature end of Content-Length delimited message body etc**
+
+**WARNING: No release note provided for this change.**
+
+
+---
+
+* [HADOOP-16748](https://issues.apache.org/jira/browse/HADOOP-16748) | *Major* | **Migrate to Python 3 and upgrade Yetus to 0.13.0**
+
+<!-- markdown -->
+- Upgraded Yetus to 0.13.0.
+- Removed determine-flaky-tests-hadoop.py.
+- Temporarily disabled shelldocs check in the Jenkins jobs due to YETUS-1099.
+
+
+---
+
+* [HADOOP-16870](https://issues.apache.org/jira/browse/HADOOP-16870) | *Major* | **Use spotbugs-maven-plugin instead of findbugs-maven-plugin**
+
+Removed findbugs from the hadoop build images and added spotbugs instead.
+Upgraded SpotBugs to 4.2.2 and spotbugs-maven-plugin to 4.2.0.
+
+
+---
+
+* [YARN-8234](https://issues.apache.org/jira/browse/YARN-8234) | *Critical* | **Improve RM system metrics publisher's performance by pushing events to timeline server in batch**
+
+When Timeline Service V1 or V1.5 is used, if "yarn.resourcemanager.system-metrics-publisher.timeline-server-v1.enable-batch" is set to true, ResourceManager sends timeline events in batch. The default value is false. If this functionality is enabled, the maximum number that events published in batch is configured by "yarn.resourcemanager.system-metrics-publisher.timeline-server-v1.batch-size". The default value is 1000. The interval of publishing events can be configured by "yarn.resourcemanager.system-metrics-publisher.timeline-server-v1.interval-seconds". By default, it is set to 60 seconds.
+
+
+---
+
+* [HADOOP-18088](https://issues.apache.org/jira/browse/HADOOP-18088) | *Major* | **Replace log4j 1.x with reload4j**
+
+log4j 1 was replaced with reload4j which is fork of log4j 1.2.17 with the goal of fixing pressing security issues.
+
+If you are depending on the hadoop artifacts in your build were explicitly excluding log4 artifacts, and now want to exclude the reload4j files, you will need to update your exclusion lists
+\<exclusion\>
+  \<groupId\>org.slf4j\</groupId\>
+  \<artifactId\>slf4j-reload4j\</artifactId\>
+\</exclusion\>
+\<exclusion\>
+  \<groupId\>ch.qos.reload4j\</groupId\>
+  \<artifactId\>reload4j\</artifactId\>
+\</exclusion\>
+
+
+

hadoop-project-dist/pom.xml

@@ -143,7 +143,7 @@
         <activeByDefault>false</activeByDefault>
       </activation>
       <properties>
-        <jdiff.stable.api>2.10.1</jdiff.stable.api>
+        <jdiff.stable.api>2.10.2</jdiff.stable.api>
         <jdiff.stability>-unstable</jdiff.stability>
         <!-- Commented out for HADOOP-11776 -->
         <!-- Uncomment param name="${jdiff.compatibility}" in javadoc doclet if compatibility is not empty -->