| HADOOP-3528 | Metrics FilesCreated and files_deleted metrics do not match. | Blocker | metrics | Lohit Vijayarenu | Lohit Vijayarenu | 
| HADOOP-3542 | Hadoop archives should not create _logs file in the final archive directory. | Blocker | . | Mahadev konar | Mahadev konar | 
| HADOOP-3560 | Archvies sometimes create empty part files. | Blocker | . | Mahadev konar | Mahadev konar | 
| HADOOP-3076 | [HOD] If a cluster directory is specified as a relative path, an existing script.exitcode file will not be deleted. | Blocker | contrib/hod | Hemanth Yamijala | Vinod Kumar Vavilapalli | 
| HADOOP-3543 | Need to increment the year field for the copyright notice | Trivial | documentation | Chris Douglas | Chris Douglas | 
| HADOOP-3640 | NativeS3FsInputStream read() method for reading a single byte is incorrect | Major | fs/s3 | Tom White | Tom White | 
| HADOOP-3711 | Streaming input is not parsed properly to find the separator | Major | . | Amareshwari Sriramadasu | Amareshwari Sriramadasu | 
| HADOOP-3725 | TestMiniMRMapRedDebugScript loses exception details | Minor | test | Steve Loughran | Steve Loughran | 
| HADOOP-3726 | TestCLI loses exception details on setup/teardown | Minor | test | Steve Loughran | Steve Loughran | 
| HADOOP-3732 | Block scanner should read block information during initialization. | Blocker | . | Konstantin Shvachko | Raghu Angadi | 
| HADOOP-3720 | dfsadmin -refreshNodes should re-read the config file. | Major | . | Lohit Vijayarenu | Lohit Vijayarenu | 
| HADOOP-3723 | libhdfs only accepts O_WRONLY and O_RDONLY so does not accept things like O_WRONLY | O_CREAT | Minor | . | Pete Wyckoff | Pi Song | 
| HADOOP-3643 | jobtasks.jsp when called for running tasks should ignore completed TIPs | Major | . | Amar Kamat | Amar Kamat | 
| HADOOP-3777 | Failure to load native lzo libraries causes job failure | Major | . | Chris Douglas | Chris Douglas | 
| HADOOP-3728 | Cannot run more than one instance of examples.SleepJob at the same time. | Minor | . | Brice Arnould | Brice Arnould | 
| HADOOP-3795 | NameNode does not save image if different dfs.name.dir have different checkpoint stamps | Major | . | Lohit Vijayarenu | Lohit Vijayarenu | 
| HADOOP-3778 | seek(long) in DFSInputStream should catch socket exception for retry later | Minor | . | Luo Ning | Luo Ning | 
| HADOOP-3756 | dfs.client.buffer.dir isn’t used in hdfs, but it’s still in conf/hadoop-default.xml | Trivial | . | Michael Bieniosek | Raghu Angadi | 
| HADOOP-3776 | NPE in NameNode with unknown blocks | Blocker | . | Raghu Angadi | Raghu Angadi | 
| HADOOP-3820 | gridmix-env has a syntax error, and wrongly defines USE_REAL_DATASET by default | Major | benchmarks | Arun C Murthy | Arun C Murthy | 
| HADOOP-3819 | can not get svn revision # at build time if locale is not english | Minor | build | Rong-En Fan | Rong-En Fan | 
| HADOOP-3848 | TaskTracker.localizeJob calls getSystemDir for each task rather than caching it | Major | . | Arun C Murthy | Arun C Murthy | 
| HADOOP-3863 | Use a thread-local rather than static ENCODER/DECODER variables in Text for synchronization | Critical | . | Arun C Murthy | Arun C Murthy | 
| HADOOP-3131 | enabling BLOCK compression for map outputs breaks the reduce progress counters | Major | . | Colin Evans | Matei Zaharia | 
| HADOOP-3836 | TestMultipleOutputs will fail if it is ran more than one times | Major | test | Tsz Wo Nicholas Sze | Alejandro Abdelnur | 
| HADOOP-3846 | CreateEditsLog used for benchmark misses creating parent directories | Minor | benchmarks | Lohit Vijayarenu | Lohit Vijayarenu | 
| HADOOP-3904 | A few tests still using old hdfs package name | Minor | test | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | 
| HADOOP-3319 | [HOD]checknodes prints errors messages on stdout | Major | contrib/hod | Vinod Kumar Vavilapalli | Vinod Kumar Vavilapalli | 
| HADOOP-3907 | INodeDirectoryWithQuota should be in its own .java file | Minor | . | Steve Loughran | Tsz Wo Nicholas Sze | 
| HADOOP-3919 | hadoop conf got slightly mangled by 3772 | Minor | . | Ari Rabkin | Ari Rabkin | 
| HADOOP-3875 | Fix TaskTracker’s heartbeat timer to note the time the hearbeat RPC returned to decide next heartbeat time | Major | . | Arun C Murthy | Arun C Murthy | 
| HADOOP-3864 | JobTracker lockup due to JobInProgress.initTasks taking significant time for large jobs on large clusters | Critical | . | Arun C Murthy | Arun C Murthy | 
| HADOOP-9 | mapred.local.dir  temp dir. space allocation limited by smallest area | Minor | . | Paul Baclace | Ari Rabkin | 
| HADOOP-3851 | spelling error in FSNamesystemMetrics log message | Trivial | . | Steve Loughran | Steve Loughran | 
| HADOOP-3816 | KFS changes for faster directory listing | Minor | fs | Sriram Rao | Sriram Rao | 
| HADOOP-3773 | Setting the conf twice in Pipes Submitter | Trivial | . | Koji Noguchi | Koji Noguchi | 
| HADOOP-3952 | TestDataJoin references dfs.MiniDFSCluster instead of hdfs.MiniDFSCluster | Major | test | Owen O’Malley | Owen O’Malley | 
| HADOOP-3951 | The package name used in FSNamesystem is incorrect | Trivial | . | Tsz Wo Nicholas Sze | Chris Douglas | 
| HADOOP-3946 | TestMapRed fails on trunk | Blocker | test | Amareshwari Sriramadasu | Tom White | 
| HADOOP-3949 | javadoc warnings: Multiple sources of package comments found for package | Major | build, documentation | Tsz Wo Nicholas Sze | Jerome Boulon | 
| HADOOP-3933 | DataNode’s BlockSender sends more data than necessary | Minor | . | Ning Li | Ning Li | 
| HADOOP-3962 | Shell command “fs -count” should support paths with different file systsms | Major | fs | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | 
| HADOOP-3957 | Fix javac warnings in DistCp and the corresponding tests | Minor | . | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | 
| HADOOP-3958 | TestMapRed ignores failures of the test case | Major | test | Owen O’Malley | Owen O’Malley | 
| HADOOP-3658 | Incorrect destination IP logged for receiving blocks | Minor | . | Koji Noguchi | Chris Douglas | 
| HADOOP-3985 | TestHDFSServerPorts fails on trunk | Major | . | Amar Kamat | Hairong Kuang | 
| HADOOP-3964 | javadoc warnings by failmon | Major | build | Tsz Wo Nicholas Sze | dhruba borthakur | 
| HADOOP-3785 | FileSystem cache should be case-insensitive | Major | fs | Doug Cutting | Bill de hOra | 
| HADOOP-3506 | Occasional NPE in Jets3tFileSystemStore | Major | fs/s3 | Robert | Tom White | 
| HADOOP-3705 | CompositeInputFormat is unable to parse InputFormat classes with names containing ‘_’ or ‘$’ | Major | . | Jingkei Ly | Chris Douglas | 
| HADOOP-4023 | javadoc warnings: incorrect references | Major | documentation | Tsz Wo Nicholas Sze | Owen O’Malley | 
| HADOOP-4030 | LzopCodec shouldn’t be in the default list of codecs i.e. io.compression.codecs | Major | io | Arun C Murthy | Arun C Murthy | 
| HADOOP-3961 | resource estimation works badly in some cases | Blocker | . | Ari Rabkin | Ari Rabkin | 
| HADOOP-4036 | Increment InterTrackerProtocol version number due to changes in HADOOP-3759 | Major | . | Hemanth Yamijala | Hemanth Yamijala | 
| HADOOP-2168 | Pipes with a C++ record reader does not update progress in the map until it is 100% | Major | . | Owen O’Malley | Arun C Murthy | 
| HADOOP-3488 | the rsync command in hadoop-daemon.sh also rsync the logs folder from the master, what deletes the datanode / tasktracker log files. | Critical | scripts | Stefan Groschupf | Craig Macdonald | 
| HADOOP-3937 | Job history may get disabled due to overly long job names | Major | . | Matei Zaharia | Matei Zaharia | 
| HADOOP-3950 | TestMapRed and TestMiniMRDFSSort failed on trunk | Major | test | Tsz Wo Nicholas Sze | Enis Soztutar | 
| HADOOP-3910 | Are ClusterTestDFSNamespaceLogging and ClusterTestDFS still valid tests? | Minor | test | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | 
| HADOOP-3954 | Skip records enabled as default. | Critical | . | Koji Noguchi | Sharad Agarwal | 
| HADOOP-4050 | TestFairScheduler failed on Linux | Major | . | Tsz Wo Nicholas Sze | Matei Zaharia | 
| HADOOP-4078 | TestKosmosFileSystem fails on trunk | Blocker | fs | Amareshwari Sriramadasu | Lohit Vijayarenu | 
| HADOOP-3968 | test-libhdfs fails on trunk | Major | . | Lohit Vijayarenu | Pete Wyckoff | 
| HADOOP-4100 | Scheduler.assignTasks should not be dealing with cleanupTask | Major | . | Devaraj Das | Amareshwari Sriramadasu | 
| HADOOP-3970 | Counters written to the job history cannot be recovered back | Major | . | Amar Kamat | Amar Kamat | 
| HADOOP-4097 | Hive interaction with speculative execution is broken | Critical | . | Joydeep Sen Sarma | Joydeep Sen Sarma | 
| HADOOP-4154 | Fix javac warning in WritableUtils | Minor | io | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | 
| HADOOP-4054 | During edit log loading, an underconstruction file’s lease gets removed twice | Major | . | Hairong Kuang | Hairong Kuang | 
| HADOOP-4071 | FSNameSystem.isReplicationInProgress should add an underReplicated block to the neededReplication queue using method “add” not “update” | Major | . | Hairong Kuang | Hairong Kuang | 
| HADOOP-4147 | Remove JobWithTaskContext from JobInProgress | Trivial | . | Amar Kamat | Amareshwari Sriramadasu | 
| HADOOP-4133 | remove derby.log files form repository and also change the location where these files get created | Minor | . | Prasad Chakka | Prasad Chakka | 
| HADOOP-4112 | Got ArrayOutOfBound exception while analyzing the job history | Major | . | Amar Kamat | Amareshwari Sriramadasu | 
| HADOOP-3831 | slow-reading dfs clients do not recover from datanode-write-timeouts | Major | . | Christian Kunz | Raghu Angadi | 
| HADOOP-4155 | JobHisotry::JOBTRACKER_START_TIME is not initialized properly | Major | . | Lohit Vijayarenu | Lohit Vijayarenu | 
| HADOOP-4099 | HFTP interface compatibility with older releases broken | Blocker | fs | Kan Zhang | dhruba borthakur | 
| HADOOP-3570 | Including user specified jar files in the client side classpath path in Hadoop 0.17 streaming | Major | . | Suhas Gogate | Sharad Agarwal | 
| HADOOP-4129 | Memory limits of TaskTracker and Tasks should be in kiloBytes. | Blocker | . | Vinod Kumar Vavilapalli | Vinod Kumar Vavilapalli | 
| HADOOP-4139 | [Hive] multi group by statement is not optimized | Major | . | Namit Jain | Namit Jain | 
| HADOOP-3623 | LeaseManager needs refactoring. | Major | . | Konstantin Shvachko | Tsz Wo Nicholas Sze | 
| HADOOP-4125 | Reduce cleanup tip web ui is does not show attempts | Major | . | Amareshwari Sriramadasu | Amareshwari Sriramadasu | 
| HADOOP-4087 | Make Hive metastore server to work for PHP & Python clients | Major | . | Prasad Chakka | Prasad Chakka | 
| HADOOP-4197 | Need to update DATA_TRANSFER_VERSION | Major | . | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | 
| HADOOP-4195 | SequenceFile.Writer close() uses compressor after returning it to CodecPool. | Major | io | Hong Tang | Arun C Murthy | 
| HADOOP-3959 | [HOD] –resource_manager.options is not passed to qsub | Major | contrib/hod | Craig Macdonald | Vinod Kumar Vavilapalli | 
| HADOOP-3783 | “deprecated filesystem name” warning on EC2 | Minor | contrib/cloud | Stuart Sierra | Tom White | 
| HADOOP-3991 | updates to hadoop-ec2-env.sh for 0.18.0 | Minor | contrib/cloud | Karl Anderson | Tom White | 
| HADOOP-2403 | JobHistory log files contain data that cannot be parsed by org.apache.hadoop.mapred.JobHistory | Critical | . | Runping Qi | Amareshwari Sriramadasu | 
| HADOOP-4200 | Hadoop-Patch build is failing | Major | build | Ramya Sunil | Ramya Sunil | 
| HADOOP-4121 | HistoryViewer initialization failure should log exception trace | Trivial | . | Amareshwari Sriramadasu | Amareshwari Sriramadasu | 
| HADOOP-4213 | NPE in TestLimitTasksPerJobTaskScheduler | Major | test | Tsz Wo Nicholas Sze | Sreekanth Ramakrishnan | 
| HADOOP-4077 | Access permissions for setting access times and modification times for files | Blocker | . | dhruba borthakur | dhruba borthakur | 
| HADOOP-3592 | org.apache.hadoop.fs.FileUtil.copy() will leak input streams if the destination can’t be opened | Minor | fs | Steve Loughran | Bill de hOra | 
| HADOOP-4169 | ‘compressed’ keyword in DDL syntax misleading and does not compress | Major | . | Joydeep Sen Sarma | Joydeep Sen Sarma | 
| HADOOP-4175 | Incorporate metastore server review comments | Major | . | Prasad Chakka | Prasad Chakka | 
| HADOOP-4027 | When streaming utility is run without specifying mapper/reducer/input/output options, it returns 0. | Major | . | Ramya Sunil |  | 
| HADOOP-4242 | Remove an extra “;” in FSDirectory | Blocker | . | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | 
| HADOOP-4248 | Remove HADOOP-1230 API from 0.19 | Major | . | Owen O’Malley | Owen O’Malley | 
| HADOOP-4249 | Declare hsqldb.jar in eclipse plugin | Blocker | contrib/eclipse-plugin | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | 
| HADOOP-4247 | hadoop jar throwing exception when running examples | Blocker | . | Hemanth Yamijala | Owen O’Malley | 
| HADOOP-4269 | LineRecordReader.LineReader should use util.LineReader | Major | util | Chris Douglas | Chris Douglas | 
| HADOOP-4280 | test-libhdfs consistently fails on trunk | Blocker | . | Raghu Angadi | Pete Wyckoff | 
| HADOOP-4254 | Cannot setSpaceQuota to 1TB | Blocker | . | Tsz Wo Nicholas Sze | Raghu Angadi | 
| HADOOP-4275 | New public methods added to the *ID classes | Major | . | Owen O’Malley | Owen O’Malley | 
| HADOOP-4173 | TestProcfsBasedProcessTree failing on Windows machine | Major | test, util | Ramya Sunil | Vinod Kumar Vavilapalli | 
| HADOOP-4189 | HADOOP-3245 is incomplete | Blocker | . | Amar Kamat | Amar Kamat | 
| HADOOP-4274 | Capacity scheduler’s implementation of getJobs modifies the list of running jobs inadvertently | Blocker | . | Hemanth Yamijala | Hemanth Yamijala | 
| HADOOP-4309 | eclipse-plugin no longer compiles on trunk | Blocker | contrib/eclipse-plugin | Chris Douglas | Chris Douglas | 
| HADOOP-4232 | Race condition in JVM reuse when more than one slot becomes free | Blocker | . | Devaraj Das | Devaraj Das | 
| HADOOP-4135 | change max length of database columns for metastore to 767 | Minor | . | Prasad Chakka | Prasad Chakka | 
| HADOOP-4093 | [Hive]unify Table.getCols() & get_fields() | Major | . | Prasad Chakka | Prasad Chakka | 
| HADOOP-4302 | TestReduceFetch fails intermittently | Blocker | . | Devaraj Das | Chris Douglas | 
| HADOOP-4319 | fuse-dfs dfs_read function may return less than the requested #of bytes even if EOF not reached | Blocker | . | Pete Wyckoff | Pete Wyckoff | 
| HADOOP-4246 | Reduce task copy errors may not kill it eventually | Blocker | . | Amareshwari Sriramadasu | Amareshwari Sriramadasu | 
| HADOOP-4209 | The TaskAttemptID should not have the JobTracker start time | Blocker | . | Owen O’Malley | Amar Kamat | 
| HADOOP-4163 | If a reducer failed at shuffling stage, the task should fail, not just logging an exception | Blocker | . | Runping Qi | Sharad Agarwal | 
| HADOOP-4299 | Unable to access a file by a different user in the same group when permissions is set to 770 or when permissions is turned OFF | Blocker | . | Ramya Sunil | Hairong Kuang | 
| HADOOP-4261 | Jobs failing in the init stage will never cleanup | Blocker | . | Amar Kamat | Amareshwari Sriramadasu | 
| HADOOP-4256 | Remove Completed and Failed Job tables from jobqueue_details.jsp | Blocker | . | Sreekanth Ramakrishnan | Sreekanth Ramakrishnan | 
| HADOOP-4267 | TestDBJob failed on Linux | Blocker | . | Raghu Angadi | Enis Soztutar | 
| HADOOP-4225 | FSEditLog logs modification time instead of access time. | Blocker | . | Konstantin Shvachko | Konstantin Shvachko | 
| HADOOP-4018 | limit memory usage in jobtracker | Major | . | dhruba borthakur | dhruba borthakur | 
| HADOOP-4288 | java.lang.NullPointerException is observed in Jobtracker log while   call heartbeat | Blocker | . | Karam Singh | Amar Kamat | 
| HADOOP-4380 | Make new classes in mapred package private instead of public | Major | . | Owen O’Malley | Owen O’Malley | 
| HADOOP-4014 | DFS upgrade fails on Windows | Blocker | fs | NOMURA Yoshihide | Konstantin Shvachko | 
| HADOOP-4393 | Merge AccessControlException and AccessControlIOException into one exception class | Blocker | fs | Owen O’Malley | Owen O’Malley | 
| HADOOP-4287 | [mapred] jobqueue_details.jsp shows negative count of running and waiting reduces with CapacityTaskScheduler. | Blocker | . | Vinod Kumar Vavilapalli | Sreekanth Ramakrishnan | 
| HADOOP-4361 | Corner cases in killJob from command line | Blocker | . | Amareshwari Sriramadasu | Amareshwari Sriramadasu | 
| HADOOP-4400 | Add “hdfs://” to fs.default.name on quickstart.html | Trivial | documentation | Jeff Hammerbacher | Jeff Hammerbacher | 
| HADOOP-4378 | TestJobQueueInformation fails regularly | Blocker | test | Tsz Wo Nicholas Sze | Sreekanth Ramakrishnan | 
| HADOOP-3814 | [HOD] Remove dfs.client.buffer.dir generation, as this is removed in Hadoop 0.19. | Blocker | contrib/hod | Hemanth Yamijala | Vinod Kumar Vavilapalli | 
| HADOOP-4376 | Fix line formatting in hadoop-default.xml for hadoop.http.filter.initializers | Blocker | conf | Enis Soztutar | Enis Soztutar | 
| HADOOP-4410 | TestMiniMRDebugScript fails on trunk | Blocker | . | Amareshwari Sriramadasu | Amareshwari Sriramadasu | 
| HADOOP-4236 | JobTracker.killJob() fails to kill a job if the job is not yet initialized | Blocker | . | Amar Kamat | Sharad Agarwal | 
| HADOOP-4373 | Guaranteed Capacity calculation is not calculated correctly | Blocker | . | Karam Singh | Hemanth Yamijala | 
| HADOOP-4335 | FsShell -ls fails for file systems without owners or groups | Major | scripts | David Phillips | David Phillips | 
| HADOOP-4418 | Update documentation in forrest for Mapred, streaming and pipes | Blocker | documentation | Amareshwari Sriramadasu | Amareshwari Sriramadasu | 
| HADOOP-3155 | reducers stuck at shuffling | Blocker | . | Runping Qi | dhruba borthakur | 
| HADOOP-4425 | Edits log takes much longer to load | Blocker | . | Chris Douglas | Chris Douglas | 
| HADOOP-4427 | Add new/missing commands in forrest | Blocker | documentation | Sharad Agarwal | Sreekanth Ramakrishnan | 
| HADOOP-4278 | TestDatanodeDeath failed occasionally | Blocker | . | Tsz Wo Nicholas Sze | dhruba borthakur | 
| HADOOP-4423 | FSDataset.getStoredBlock(id) should not return corrupted information | Blocker | . | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | 
| HADOOP-4358 | NPE from CreateEditsLog | Blocker | test | Chris Douglas | Raghu Angadi | 
| HADOOP-4449 | Minor formatting changes to quota related commands | Trivial | . | Raghu Angadi | Raghu Angadi | 
| HADOOP-4455 | Upload the derby.jar and TestSeDe.jar needed for fixes to 0.19 bugs | Blocker | . | Ashish Thusoo | Ashish Thusoo | 
| HADOOP-4457 | Input split logging in history is broken in 0.19 | Blocker | . | Amareshwari Sriramadasu | Amareshwari Sriramadasu | 
| HADOOP-4321 | Document the capacity scheduler in Forrest | Blocker | documentation | Hemanth Yamijala | Hemanth Yamijala | 
| HADOOP-4404 | saveFSImage() should remove files from a storage directory that do not correspond to its type. | Blocker | . | Konstantin Shvachko | Konstantin Shvachko | 
| HADOOP-4149 | JobQueueJobInProgressListener.jobUpdated() might not work as expected | Blocker | . | Amar Kamat | Amar Kamat | 
| HADOOP-4438 | Add new/missing dfs commands in forrest | Blocker | documentation | Hemanth Yamijala | Suresh Srinivas | 
| HADOOP-4296 | Spasm of JobClient failures on successful jobs every once in a while | Blocker | . | Joydeep Sen Sarma | dhruba borthakur | 
| HADOOP-4439 | Cleanup memory related resource management | Blocker | . | Hemanth Yamijala | Hemanth Yamijala | 
| HADOOP-1945 | pipes examples aren’t in the release | Major | . | Owen O’Malley | Owen O’Malley | 
| HADOOP-4329 | Hive: [] operator with maps does not work | Major | . | Ashish Thusoo | Ashish Thusoo | 
| HADOOP-4330 | Hive: AS clause with subqueries having group bys is not propogated to the outer query block | Major | . | Ashish Thusoo | Ashish Thusoo | 
| HADOOP-4344 | Hive: Partition pruning causes semantic exception with joins | Major | . | Ashish Thusoo | Ashish Thusoo | 
| HADOOP-4303 | Hive: trim and rtrim UDFs behaviors are reversed | Major | . | Ashish Thusoo | Ashish Thusoo | 
| HADOOP-4315 | Hive: Cleanup temporary files once the job is done | Major | . | Ashish Thusoo | Ashish Thusoo | 
| HADOOP-4146 | [Hive] null pointer exception on a join | Major | . | Namit Jain | Namit Jain | 
| HADOOP-4265 | [Hive] error when user specifies the delimiter | Major | . | Namit Jain | Namit Jain | 
| HADOOP-4273 | [Hive] job submission exception if input is null | Major | . | Namit Jain | Namit Jain | 
| HADOOP-4316 | [Hive] extra new lines at output | Major | . | Namit Jain | Namit Jain | 
| HADOOP-4327 | Create table hive does not set delimeters | Major | . | Edward Capriolo | Namit Jain | 
| HADOOP-4342 | [hive] bug in partition pruning | Major | . | Namit Jain | Namit Jain | 
| HADOOP-4356 | [Hive] for a 2-stage map-reduce job, number of reducers not set correctly | Major | . | Namit Jain | Namit Jain | 
| HADOOP-4241 | -hiveconf config parameters in hive cli should override all config variables | Major | . | Joydeep Sen Sarma | Joydeep Sen Sarma | 
| HADOOP-4367 | Hive: UDAF functions cannot handle NULL values | Major | . | Zheng Shao | Zheng Shao | 
| HADOOP-4355 | hive 2 case sensitivity issues | Major | . | Zheng Shao |  | 
| HADOOP-4294 | Hive: Parser should pass field schema to SerDe | Major | . | Zheng Shao |  | 
| HADOOP-4333 | add ability to drop partitions through DDL | Minor | . | Prasad Chakka | Prasad Chakka | 
| HADOOP-4183 | select * to console issues in Hive | Major | . | Joydeep Sen Sarma |  | 
| HADOOP-4266 | Hive: Support “IS NULL”, “IS NOT NULL”, and size(x) for map and list | Major | . | Zheng Shao | Zheng Shao | 
| HADOOP-4320 | [Hive] TCTLSeparatedProtocol implement maps/lists/sets read/writes | Major | . | Pete Wyckoff |  | 
| HADOOP-4250 | Remove short names of serdes from Deserializer, Serializer & SerDe interface and relevant code. | Major | . | Prasad Chakka | Prasad Chakka | 
| HADOOP-4405 | all creation of hadoop dfs queries from with in hive shell | Minor | . | Prasad Chakka | Prasad Chakka | 
| HADOOP-4366 | Provide way to replace existing column names for columnSet tables | Major | . | Prasad Chakka | Prasad Chakka | 
| HADOOP-4336 | fix sampling bug in fractional bucket case | Minor | . | Prasad Chakka | Prasad Chakka | 
| HADOOP-4272 | Hive: metadataTypedColumnsetSerDe should check if SERIALIZATION.LIB is old columnsetSerDe | Major | . | Zheng Shao | Prasad Chakka | 
| HADOOP-4387 | TestHDFSFileSystemContract fails on windows | Blocker | test | Raghu Angadi | Raghu Angadi | 
| HADOOP-4466 | SequenceFileOutputFormat is coupled to WritableComparable and Writable | Blocker | io | Chris K Wensel | Chris K Wensel | 
| HADOOP-4510 | FileOutputFormat protects getTaskOutputPath | Blocker | . | Chris K Wensel | Chris K Wensel | 
| HADOOP-4089 | Check if the tmp file used in the CLI exists before using it. | Major | . | Ashish Thusoo |  | 
| HADOOP-4525 | config ipc.server.tcpnodelay is no loger being respected | Major | ipc | Clint Morgan | Clint Morgan | 
| HADOOP-4498 | JobHistory does not escape literal jobName when used in a regex pattern | Blocker | . | Chris K Wensel | Chris K Wensel | 
| HADOOP-4446 | Update  Scheduling Information display in Web UI | Major | . | Karam Singh | Sreekanth Ramakrishnan | 
| HADOOP-4282 | User configurable filter fails to filter accesses to certain directories | Blocker | . | Kan Zhang | Tsz Wo Nicholas Sze | 
| HADOOP-4595 | JVM Reuse triggers RuntimeException(“Invalid state”) | Major | . | Aaron Kimball | Devaraj Das | 
| HADOOP-4552 | Deadlock in RPC Server | Major | ipc | Raghu Angadi | Raghu Angadi | 
| HADOOP-4471 | Capacity Scheduler should maintain the right ordering of jobs in its running queue | Blocker | . | Vivek Ratan | Amar Kamat | 
| HADOOP-4500 | multifilesplit is using job default filesystem incorrectly | Major | . | Joydeep Sen Sarma | Joydeep Sen Sarma |