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Released: 06/Oct/11

Release Notes

Merge append/sync support with securityShow more
BlockerBugHDFS-142In 0.20, move blocks being written into a blocksBeingWritten directorydhruba borthakurClosed2 commits
BlockerNew FeatureHDFS-200In HDFS, sync() not yet guarantees data available to the new readersdhruba borthakurClosed4 commits
BlockerBugHDFS-724Pipeline close hangs if one of the datanode is not responsive.Hairong KuangClosed4 commits
BlockerBugHDFS-988saveNamespace race can corrupt the edits logEli CollinsClosed1 commit
BlockerSub-taskHDFS-1057Concurrent readers hit ChecksumExceptions if following a writer to very end of filesam rashClosed2 commits
BlockerBugHDFS-1141completeFile does not check lease ownershipTodd LipconClosed2 commits
BlockerBugHDFS-11860.20: DNs should interrupt writers at start of recoveryTodd LipconClosed1 commit
BlockerBugHDFS-2325Fuse-DFS fails to build on Hadoop 20.203.0Kihwal LeeClosed2 commits
BlockerBugHDFS-2342TestSleepJob and TestHdfsProxy broken after HDFS-2284Tsz Wo Nicholas SzeClosed2 commits
BlockerBugHDFS-2375TestFileAppend4 fails in 0.20.205 branchSuresh SrinivasClosed2 commits
BlockerBugHDFS-2408DFSClient#getNumCurrentReplicas is package private in 205 but public in branch-0.20-appendstackClosed4 commits
CriticalBugHDFS-121820 append: Blocks recovered on startup should be treated with lower priority during block synchronizationTodd LipconClosed1 commit
CriticalBugHDFS-12600.20: Block lost when multiple DNs trying to recover it to different genstampsTodd LipconClosed1 commit
CriticalBugHDFS-2328hftp throws NPE if security is not enabled on remote clusterOwen O'MalleyClosed2 commits
CriticalBugHDFS-2361hftp is brokenJitendra Nath PandeyClosed4 commits
CriticalBugHDFS-2392Dist with hftp is failing againDaryn SharpClosed4 commits
CriticalSub-taskHDFS-2395webhdfs api's should return a root element in the json responseTsz Wo Nicholas SzeClosed4 commits
CriticalBugHDFS-2405hadoop dfs command with webhdfs fails on secure hadoopJitendra Nath PandeyClosed3 commits
MajorSub-taskHDFS-561Fix write pipeline READ_TIMEOUTKan ZhangClosed3 commits
MajorBugHDFS-606ConcurrentModificationException in invalidateCorruptReplicas()Konstantin ShvachkoClosed3 commits
MajorImprovementHDFS-630In DFSOutputStream.nextBlockOutputStream(), the client can exclude specific datanodes when locating the next block.Cosmin LeheneClosed9 commits
MajorImprovementHDFS-826Allow a mechanism for an application to detect that datanode(s) have died in the write pipelinedhruba borthakurClosed2 commits
MajorImprovementHDFS-895Allow hflush/sync to occur in parallel with new writes to the fileTodd LipconClosed4 commits
MajorImprovementHDFS-1054Remove unnecessary sleep after failure in nextBlockOutputStreamTodd LipconClosed2 commits
MajorBugHDFS-1118DFSOutputStream socket leak when cannot connect to DataNodeZheng ShaoClosed3 commits
MajorSub-taskHDFS-1122client block verification may result in blocks in DataBlockScanner prematurelysam rashOpen1 commit
MajorBugHDFS-1164TestHdfsProxy is failingTodd LipconClosed1 commit
MajorBugHDFS-1197Blocks are considered "complete" prematurely after commitBlockSynchronization or DN restartTodd LipconResolved1 commit
MajorBugHDFS-1202DataBlockScanner throws NPE when updated before initializedTodd LipconClosed3 commits
MajorBugHDFS-12040.20: Lease expiration should recover single files, not entire lease holdersam rashClosed1 commit
MajorBugHDFS-12070.20-append: stallReplicationWork should be volatileTodd LipconClosed1 commit
MajorTestHDFS-12420.20 append: Add test for appendFile() race solved in HDFS-142Todd LipconClosed1 commit
MajorTestHDFS-1252TestDFSConcurrentFileOperations broken in 0.20-appendjTodd LipconClosed1 commit
MajorBugHDFS-1346DFSClient receives out of order packet ackHairong KuangClosed1 commit
MajorNew FeatureHDFS-1520HDFS 20 append: Lightweight NameNode operation to trigger lease recoveryHairong KuangClosed2 commits
MajorImprovementHDFS-1554Append 0.20: New semantics for recoverLeaseHairong KuangClosed1 commit
MajorImprovementHDFS-1555HDFS 20 append: Disallow pipeline recovery if a file is already being lease recoveredHairong KuangClosed4 commits
MajorBugHDFS-1779After NameNode restart , Clients can not read partial files even after client invokes Sync.Uma Maheswara Rao GClosed4 commits
MajorTaskHDFS-1795Port 0.20-append changes onto 0.20-security-203UnassignedResolved
MajorBugHDFS-1836Thousand of CLOSE_WAIT socket Bharath MundlapudiClosed4 commits
MajorBugHDFS-2171Changes to balancer bandwidth should not require datanode restart.Eric PayneClosed
MajorBugHDFS-2190NN fails to start if it encounters an empty or malformed fstime fileAaron T. MyersClosed1 commit
MajorNew FeatureHDFS-2202Changes to balancer bandwidth should not require datanode restart.Eric PayneClosed2 commits
MajorSub-taskHDFS-2284Write Http access to HDFSTsz Wo Nicholas SzeClosed5 commits
MajorBugHDFS-2300TestFileAppend4 and TestMultiThreadedSync fail on 20.append and 20-security.Jitendra Nath PandeyResolved1 commit
MajorBugHDFS-2309TestRenameWhileOpen fails in branch-0.20-securityJitendra Nath PandeyClosed1 commit
MajorSub-taskHDFS-2317Read access to HDFS using HTTP RESTTsz Wo Nicholas SzeClosed4 commits
MajorSub-taskHDFS-2318Provide authentication to webhdfs using SPNEGOTsz Wo Nicholas SzeClosed5 commits
MajorBugHDFS-2320Make merged protocol changes from 0.20-append to 0.20-security compatible with previous releases.Suresh SrinivasClosed1 commit
MajorBugHDFS-2331Hdfs compilation failsAbhijit Suresh ShingateClosed4 commits
MajorBugHDFS-2333HDFS-2284 introduced 2 findbugs warnings on trunkTsz Wo Nicholas SzeClosed4 commits
MajorSub-taskHDFS-2338Configuration option to enable/disable webhdfs.Jitendra Nath PandeyClosed4 commits
MajorSub-taskHDFS-2340Support getFileBlockLocations and getDelegationToken in webhdfsTsz Wo Nicholas SzeClosed4 commits
MajorSub-taskHDFS-2348Support getContentSummary and getFileChecksum in webhdfsTsz Wo Nicholas SzeClosed4 commits
MajorSub-taskHDFS-2356webhdfs: support case insensitive query parameter namesTsz Wo Nicholas SzeClosed4 commits
MajorBugHDFS-2358NPE when the default filesystem's uri has no authorityDaryn SharpClosed2 commits
MajorBugHDFS-2359NPE found in Datanode log while Disk failed during different HDFS operationJonathan EaglesClosed2 commits
MajorSub-taskHDFS-2366webhdfs throws a npe when ugi is null from getDelegationTokenTsz Wo Nicholas SzeClosed4 commits
MajorBugHDFS-2368defaults created for web keytab and principal, these properties should not have defaultsTsz Wo Nicholas SzeClosed4 commits
MajorBugHDFS-2373Commands using webhdfs and hftp print unnecessary debug information on the console with security enabledArpit GuptaClosed3 commits
MajorSub-taskHDFS-2385Support delegation token renewal in webhdfsTsz Wo Nicholas SzeClosed10 commits
MajorSub-taskHDFS-2403The renewer in NamenodeWebHdfsMethods.generateDelegationToken(..) is not usedTsz Wo Nicholas SzeClosed4 commits
MajorSub-taskHDFS-2404webhdfs liststatus json response is not correctSuresh SrinivasClosed4 commits
MajorBugHDFS-2411with webhdfs enabled in secure mode the auth to local mappings are not being respected.Jitendra Nath PandeyClosed4 commits
MinorImprovementHDFS-12110.20 append: Block receiver should not log "rewind" packets at INFO levelTodd LipconClosed2 commits
MinorBugHDFS-2053Bug in INodeDirectory#computeContentSummary warningMichael NollClosed3 commits
MinorBugHDFS-2117DiskChecker#mkdirsWithExistsAndPermissionCheck may return true even when the dir is not createdEli CollinsClosed1 commit
MinorBugHDFS-2259DN web-UI doesn't work with paths that contain html Eli CollinsClosed1 commit
TrivialImprovementHDFS-1210DFSClient should log exception when block recovery failsTodd LipconClosed2 commits
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