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< h1 > Apache Hadoop Changelog< / h1 > < section >
< h2 > < a name = "Release_0.19.1_-_2009-02-24" > < / a > Release 0.19.1 - 2009-02-24< / h2 > < section >
< h3 > < a name = "INCOMPATIBLE_CHANGES:" > < / a > INCOMPATIBLE CHANGES:< / h3 >
< table border = "0" class = "bodyTable" >
< thead >
< tr class = "a" >
< th align = "left" > JIRA < / th >
< th align = "left" > Summary < / th >
< th align = "left" > Priority < / th >
< th align = "left" > Component < / th >
< th align = "left" > Reporter < / th >
< th align = "left" > Contributor < / th > < / tr >
< / thead > < tbody >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4061" > HADOOP-4061< / a > < / td >
< td align = "left" > Large number of decommission freezes the Namenode < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Koji Noguchi < / td >
< td align = "left" > Tsz Wo Nicholas Sze < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5225" > HADOOP-5225< / a > < / td >
< td align = "left" > workaround for tmp file handling on DataNodes in 0.19.1 (HADOOP-4663) < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Nigel Daley < / td >
< td align = "left" > Raghu Angadi < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5224" > HADOOP-5224< / a > < / td >
< td align = "left" > Disable append < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Nigel Daley < / td >
< td align = "left" > < / td > < / tr >
< / tbody >
< / table > < / section > < section >
< h3 > < a name = "NEW_FEATURES:" > < / a > NEW FEATURES:< / h3 >
< table border = "0" class = "bodyTable" >
< thead >
< tr class = "a" >
< th align = "left" > JIRA < / th >
< th align = "left" > Summary < / th >
< th align = "left" > Priority < / th >
< th align = "left" > Component < / th >
< th align = "left" > Reporter < / th >
< th align = "left" > Contributor < / th > < / tr >
< / thead > < tbody >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5034" > HADOOP-5034< / a > < / td >
< td align = "left" > NameNode should send both replication and deletion requests to DataNode in one reply to a heartbeat < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Hairong Kuang < / td >
< td align = "left" > Hairong Kuang < / td > < / tr >
< / tbody >
< / table > < / section > < section >
< h3 > < a name = "IMPROVEMENTS:" > < / a > IMPROVEMENTS:< / h3 >
< table border = "0" class = "bodyTable" >
< thead >
< tr class = "a" >
< th align = "left" > JIRA < / th >
< th align = "left" > Summary < / th >
< th align = "left" > Priority < / th >
< th align = "left" > Component < / th >
< th align = "left" > Reporter < / th >
< th align = "left" > Contributor < / th > < / tr >
< / thead > < tbody >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4739" > HADOOP-4739< / a > < / td >
< td align = "left" > Minor enhancements to some sections of the Map/Reduce tutorial < / td >
< td align = "left" > Trivial < / td >
< td align = "left" > . < / td >
< td align = "left" > Vivek Ratan < / td >
< td align = "left" > Vivek Ratan < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-3894" > HADOOP-3894< / a > < / td >
< td align = "left" > DFSClient chould log errors better, and provide better diagnostics < / td >
< td align = "left" > Trivial < / td >
< td align = "left" > . < / td >
< td align = "left" > Steve Loughran < / td >
< td align = "left" > Steve Loughran < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5086" > HADOOP-5086< / a > < / td >
< td align = "left" > Trash URI semantics can be relaxed < / td >
< td align = "left" > Minor < / td >
< td align = "left" > fs < / td >
< td align = "left" > Chris Douglas < / td >
< td align = "left" > Chris Douglas < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5127" > HADOOP-5127< / a > < / td >
< td align = "left" > FSDirectory should not have public methods. < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Konstantin Shvachko < / td >
< td align = "left" > Jakob Homan < / td > < / tr >
< / tbody >
< / table > < / section > < section >
< h3 > < a name = "BUG_FIXES:" > < / a > BUG FIXES:< / h3 >
< table border = "0" class = "bodyTable" >
< thead >
< tr class = "a" >
< th align = "left" > JIRA < / th >
< th align = "left" > Summary < / th >
< th align = "left" > Priority < / th >
< th align = "left" > Component < / th >
< th align = "left" > Reporter < / th >
< th align = "left" > Contributor < / th > < / tr >
< / thead > < tbody >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4616" > HADOOP-4616< / a > < / td >
< td align = "left" > assertion makes fuse-dfs exit when reading incomplete data < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Marc-Olivier Fleury < / td >
< td align = "left" > Pete Wyckoff < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4697" > HADOOP-4697< / a > < / td >
< td align = "left" > KFS::getBlockLocations() fails with files having multiple blocks < / td >
< td align = "left" > Major < / td >
< td align = "left" > fs < / td >
< td align = "left" > Lohit Vijayarenu < / td >
< td align = "left" > Sriram Rao < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4720" > HADOOP-4720< / a > < / td >
< td align = "left" > docs/api does not contain the hdfs directory after building < / td >
< td align = "left" > Major < / td >
< td align = "left" > build < / td >
< td align = "left" > Ramya Sunil < / td >
< td align = "left" > < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4635" > HADOOP-4635< / a > < / td >
< td align = "left" > Memory leak ? < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Marc-Olivier Fleury < / td >
< td align = "left" > Pete Wyckoff < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4420" > HADOOP-4420< / a > < / td >
< td align = "left" > JobTracker.killJob() doesn’ t check for the JobID being valid < / td >
< td align = "left" > Minor < / td >
< td align = "left" > . < / td >
< td align = "left" > Steve Loughran < / td >
< td align = "left" > Aaron Kimball < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4632" > HADOOP-4632< / a > < / td >
< td align = "left" > TestJobHistoryVersion should not create directory in current dir. < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Amareshwari Sriramadasu < / td >
< td align = "left" > Amar Kamat < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4508" > HADOOP-4508< / a > < / td >
< td align = "left" > FSDataOutputStream.getPos() == 0when appending to existing file and should be file length < / td >
< td align = "left" > Major < / td >
< td align = "left" > fs < / td >
< td align = "left" > Pete Wyckoff < / td >
< td align = "left" > dhruba borthakur < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4727" > HADOOP-4727< / a > < / td >
< td align = "left" > Groups do not work for fuse-dfs out of the box on 0.19.0 < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Brian Bockelman < / td >
< td align = "left" > Brian Bockelman < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4731" > HADOOP-4731< / a > < / td >
< td align = "left" > Job is not removed from the waiting jobs queue upon completion. < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Hemanth Yamijala < / td >
< td align = "left" > Amar Kamat < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4836" > HADOOP-4836< / a > < / td >
< td align = "left" > Minor typos in documentation and comments < / td >
< td align = "left" > Trivial < / td >
< td align = "left" > documentation < / td >
< td align = "left" > Jordà Polo < / td >
< td align = "left" > Jordà Polo < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4821" > HADOOP-4821< / a > < / td >
< td align = "left" > Usage description in the Quotas guide documentations are incorrect < / td >
< td align = "left" > Minor < / td >
< td align = "left" > documentation < / td >
< td align = "left" > Boris Shkolnik < / td >
< td align = "left" > Boris Shkolnik < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4797" > HADOOP-4797< / a > < / td >
< td align = "left" > RPC Server can leave a lot of direct buffers < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > ipc < / td >
< td align = "left" > Raghu Angadi < / td >
< td align = "left" > Raghu Angadi < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4924" > HADOOP-4924< / a > < / td >
< td align = "left" > Race condition in re-init of TaskTracker < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Devaraj Das < / td >
< td align = "left" > Devaraj Das < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4847" > HADOOP-4847< / a > < / td >
< td align = "left" > OutputCommitter is loaded in the TaskTracker in localizeConfiguration < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Owen O’ Malley < / td >
< td align = "left" > Amareshwari Sriramadasu < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4966" > HADOOP-4966< / a > < / td >
< td align = "left" > Setup tasks are not removed from JobTracker’ s taskIdToTIPMap even after the job completes < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Amar Kamat < / td >
< td align = "left" > Amareshwari Sriramadasu < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4992" > HADOOP-4992< / a > < / td >
< td align = "left" > TestCustomOutputCommitter fails on hadoop-0.19 < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Amar Kamat < / td >
< td align = "left" > Amareshwari Sriramadasu < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4982" > HADOOP-4982< / a > < / td >
< td align = "left" > TestFsck does not run in Eclipse. < / td >
< td align = "left" > Major < / td >
< td align = "left" > test < / td >
< td align = "left" > Konstantin Shvachko < / td >
< td align = "left" > Konstantin Shvachko < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5008" > HADOOP-5008< / a > < / td >
< td align = "left" > TestReplication#testPendingReplicationRetry leaves an opened fd unclosed < / td >
< td align = "left" > Major < / td >
< td align = "left" > test < / td >
< td align = "left" > Hairong Kuang < / td >
< td align = "left" > Hairong Kuang < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4943" > HADOOP-4943< / a > < / td >
< td align = "left" > fair share scheduler does not utilize all slots if the task trackers are configured heterogeneously < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Zheng Shao < / td >
< td align = "left" > Zheng Shao < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4906" > HADOOP-4906< / a > < / td >
< td align = "left" > TaskTracker running out of memory after running several tasks < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Arun C Murthy < / td >
< td align = "left" > Sharad Agarwal < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4918" > HADOOP-4918< / a > < / td >
< td align = "left" > Fix bzip2 work with SequenceFile < / td >
< td align = "left" > Major < / td >
< td align = "left" > io < / td >
< td align = "left" > Zheng Shao < / td >
< td align = "left" > Zheng Shao < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4965" > HADOOP-4965< / a > < / td >
< td align = "left" > DFSClient should log instead of printing into std err. < / td >
< td align = "left" > Major < / td >
< td align = "left" > test < / td >
< td align = "left" > Konstantin Shvachko < / td >
< td align = "left" > Konstantin Shvachko < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4967" > HADOOP-4967< / a > < / td >
< td align = "left" > Inconsistent state in JVM manager < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Amareshwari Sriramadasu < / td >
< td align = "left" > Devaraj Das < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5002" > HADOOP-5002< / a > < / td >
< td align = "left" > 2 core tests TestFileOutputFormat and TestHarFileSystem are failing in branch 19 < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Ravi Gummadi < / td >
< td align = "left" > Amareshwari Sriramadasu < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4983" > HADOOP-4983< / a > < / td >
< td align = "left" > Job counters sometimes go down as tasks run without task failures < / td >
< td align = "left" > Critical < / td >
< td align = "left" > . < / td >
< td align = "left" > Owen O’ Malley < / td >
< td align = "left" > Amareshwari Sriramadasu < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5009" > HADOOP-5009< / a > < / td >
< td align = "left" > DataNode#shutdown sometimes leaves data block scanner verification log unclosed < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Hairong Kuang < / td >
< td align = "left" > Hairong Kuang < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4955" > HADOOP-4955< / a > < / td >
< td align = "left" > Make DBOutputFormat us column names from setOutput(… ) < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Kevin Peterson < / td >
< td align = "left" > Kevin Peterson < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4862" > HADOOP-4862< / a > < / td >
< td align = "left" > A spurious IOException log on DataNode is not completely removed < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Raghu Angadi < / td >
< td align = "left" > Raghu Angadi < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5156" > HADOOP-5156< / a > < / td >
< td align = "left" > TestHeartbeatHandling uses MiniDFSCluster.getNamesystem() which does not exist in branch 0.20 < / td >
< td align = "left" > Major < / td >
< td align = "left" > test < / td >
< td align = "left" > Konstantin Shvachko < / td >
< td align = "left" > Hairong Kuang < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4759" > HADOOP-4759< / a > < / td >
< td align = "left" > HADOOP-4654 to be fixed for branches > = 0.19 < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Amareshwari Sriramadasu < / td >
< td align = "left" > Amareshwari Sriramadasu < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5161" > HADOOP-5161< / a > < / td >
< td align = "left" > Accepted sockets do not get placed in DataXceiverServer#childSockets < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Hairong Kuang < / td >
< td align = "left" > Hairong Kuang < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5193" > HADOOP-5193< / a > < / td >
< td align = "left" > SecondaryNameNode does not rollImage because of incorrect calculation of edits modification time. < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Konstantin Shvachko < / td >
< td align = "left" > Konstantin Shvachko < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4494" > HADOOP-4494< / a > < / td >
< td align = "left" > libhdfs does not call FileSystem.append when O_APPEND passed to hdfsOpenFile < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Pete Wyckoff < / td >
< td align = "left" > Pete Wyckoff < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5166" > HADOOP-5166< / a > < / td >
< td align = "left" > JobTracker fails to restart if recovery and ACLs are enabled < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Karam Singh < / td >
< td align = "left" > Amar Kamat < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5192" > HADOOP-5192< / a > < / td >
< td align = "left" > Block reciever should not remove a finalized block when block replication fails < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Hairong Kuang < / td >
< td align = "left" > Hairong Kuang < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5067" > HADOOP-5067< / a > < / td >
< td align = "left" > Failed/Killed attempts column in jobdetails.jsp does not show the number of failed/killed attempts correctly < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Amareshwari Sriramadasu < / td >
< td align = "left" > Amareshwari Sriramadasu < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-4760" > HADOOP-4760< / a > < / td >
< td align = "left" > HDFS streams should not throw exceptions when closed twice < / td >
< td align = "left" > Major < / td >
< td align = "left" > fs, fs/s3 < / td >
< td align = "left" > Alejandro Abdelnur < / td >
< td align = "left" > Enis Soztutar < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5134" > HADOOP-5134< / a > < / td >
< td align = "left" > FSNamesystem#commitBlockSynchronization adds under-construction block locations to blocksMap < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Hairong Kuang < / td >
< td align = "left" > dhruba borthakur < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5268" > HADOOP-5268< / a > < / td >
< td align = "left" > Using MultipleOutputFormat and setting reducers to 0 causes org.apache.hadoop.hdfs.protocol.AlreadyBeingCreatedException and job to fail < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Thibaut < / td >
< td align = "left" > < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-5665" > HADOOP-5665< / a > < / td >
< td align = "left" > Namenode could not be formatted because the “ whoami” program could not be run. < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Evelyn Sylvia < / td >
< td align = "left" > < / td > < / tr >
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