| MAPREDUCE-6165 | [JDK8] TestCombineFileInputFormat failed on JDK8 | Minor | . | Wei Yan | Akira Ajisaka | 
| HDFS-8797 | WebHdfsFileSystem creates too many connections for pread | Major | webhdfs | Jing Zhao | Jing Zhao | 
| HDFS-9003 | ForkJoin thread pool leaks | Major | . | Kihwal Lee | Kihwal Lee | 
| HDFS-9107 | Prevent NN’s unrecoverable death spiral after full GC | Critical | namenode | Daryn Sharp | Daryn Sharp | 
| MAPREDUCE-6750 | TestHSAdminServer.testRefreshSuperUserGroups is failing | Minor | test | Kihwal Lee | Kihwal Lee | 
| HDFS-10738 | Fix TestRefreshUserMappings.testRefreshSuperUserGroupsConfiguration test failure | Major | test | Rakesh R | Rakesh R | 
| HADOOP-14702 | Fix formatting issue and regression caused by conversion from APT to Markdown | Minor | documentation | Doris Gu | Doris Gu | 
| HDFS-12157 | Do fsyncDirectory(..) outside of FSDataset lock | Critical | datanode | Vinayakumar B | Vinayakumar B | 
| MAPREDUCE-6931 | Remove TestDFSIO “Total Throughput” calculation | Critical | benchmarks, test | Dennis Huo | Dennis Huo | 
| HADOOP-14867 | Update HDFS Federation setup document, for incorrect property name for secondary name node http address | Major | . | Bharat Viswanadham | Bharat Viswanadham | 
| MAPREDUCE-6957 | shuffle hangs after a node manager connection timeout | Major | mrv2 | Jooseong Kim | Jooseong Kim | 
| HDFS-12323 | NameNode terminates after full GC thinking QJM unresponsive if full GC is much longer than timeout | Major | namenode, qjm | Erik Krogen | Erik Krogen | 
| YARN-5195 | RM intermittently crashed with NPE while handling APP_ATTEMPT_REMOVED event when async-scheduling enabled in CapacityScheduler | Major | resourcemanager | Karam Singh | sandflee | 
| HADOOP-14902 | LoadGenerator#genFile write close timing is incorrectly calculated | Major | fs | Jason Lowe | Hanisha Koneru | 
| YARN-7084 | TestSchedulingMonitor#testRMStarts fails sporadically | Major | . | Jason Lowe | Jason Lowe | 
| HDFS-12578 | TestDeadDatanode#testNonDFSUsedONDeadNodeReReg failing in branch-2.7 | Blocker | test | Xiao Chen | Ajay Kumar | 
| HADOOP-14919 | BZip2 drops records when reading data in splits | Critical | . | Aki Tanaka | Jason Lowe | 
| HDFS-12832 | INode.getFullPathName may throw ArrayIndexOutOfBoundsException lead to NameNode exit | Critical | namenode | DENG FEI | Konstantin Shvachko | 
| HDFS-12638 | Delete copy-on-truncate block along with the original block, when deleting a file being truncated | Blocker | hdfs | Jiandan Yang | Konstantin Shvachko |