Apache Hadoop Changelog

Release 0.15.0 - 2007-10-19

INCOMPATIBLE CHANGES:

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IMPORTANT ISSUES:

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NEW FEATURES:

JIRA Summary Priority Component Reporter Contributor
HADOOP-1963 Code contribution of Kosmos Filesystem implementation of Hadoop Filesystem interface Major fs Sriram Rao Sriram Rao
HADOOP-1914 HDFS should have a NamenodeProtocol to allow secondary namenodes and rebalancing processes to communicate with a primary namenode Major . Hairong Kuang Hairong Kuang
HADOOP-1894 Add fancy graphs for mapred task statuses Major . Enis Soztutar Enis Soztutar
HADOOP-1880 SleepJob Major . Enis Soztutar Enis Soztutar
HADOOP-1851 Map output compression codec cannot be set independently of job output compression codec Major . Riccardo Boscolo Arun C Murthy
HADOOP-1822 Allow SOCKS proxy configuration to remotely access the DFS and submit Jobs Minor ipc Christophe Taton Christophe Taton
HADOOP-1809 Add link to irc channel #hadoop Major . Enis Soztutar Enis Soztutar
HADOOP-1727 Make …hbase.io.MapWritable more generic so that it can be included in …hadoop.io Minor io Jim Kellerman Jim Kellerman
HADOOP-1351 Want to kill a particular task or attempt Major . Owen O’Malley Enis Soztutar
HADOOP-789 DFS shell should return a list of nodes for a file saying that where the blocks for these files are located. Minor . Mahadev konar Mahadev konar

IMPROVEMENTS:

JIRA Summary Priority Component Reporter Contributor
HADOOP-2046 Documentation: improve mapred javadocs Blocker documentation Arun C Murthy Arun C Murthy
HADOOP-1971 Constructing a JobConf without a class leads to a very misleading error message. Minor . Ted Dunning Enis Soztutar
HADOOP-1968 Wildcard input syntax (glob) should support {} Major fs eric baldeschwieler Hairong Kuang
HADOOP-1942 Increase the concurrency of transaction logging to edits log Blocker . dhruba borthakur dhruba borthakur
HADOOP-1933 Consider include/exclude files while listing datanodes. Major . Raghu Angadi Raghu Angadi
HADOOP-1926 Design/implement a set of compression benchmarks for the map-reduce framework Major . Arun C Murthy Arun C Murthy
HADOOP-1921 Save the configuration of completed/failed jobs and make them available via the web-ui. Major . Arun C Murthy Amar Kamat
HADOOP-1908 Restructure data node code so that block sending/receiving is seperated from data transfer header handling Major . Hairong Kuang Hairong Kuang
HADOOP-1906 JobConf should warn about the existance of obsolete mapred-default.xml. Major conf Owen O’Malley Arun C Murthy
HADOOP-1881 Update documentation for hadoop’s configuration post HADOOP-785 Major documentation Arun C Murthy Arun C Murthy
HADOOP-1878 Change priority feature in the job details JSP page misses spaces between each priority link Trivial . Thomas Friol Thomas Friol
HADOOP-1803 Generalize making contrib bin content executable in ant package target Minor build stack stack
HADOOP-1779 Small INodeDirectory enhancement to get all existing INodes components on a path Trivial . Christophe Taton Christophe Taton
HADOOP-1777 Typo issue in the job details JSP page Trivial . Thomas Friol Thomas Friol
HADOOP-1774 Remove use of INode.parent in Block CRC upgrade Major . Raghu Angadi Raghu Angadi
HADOOP-1767 JobClient CLI cleanup and improvement Minor . Christophe Taton Christophe Taton
HADOOP-1766 Merging Block and BlockInfo classes on name-node. Major . Konstantin Shvachko Konstantin Shvachko
HADOOP-1762 Namenode does not need to store storageID and datanodeID persistently Major . Raghu Angadi Raghu Angadi
HADOOP-1759 File name should be represented by a byte array instead of a String Major . Konstantin Shvachko Konstantin Shvachko
HADOOP-1756 Add toString() methods to some Writable types Major io Andrzej Bialecki Andrzej Bialecki
HADOOP-1750 We should log better if something goes wrong with the process fork Major . Owen O’Malley Owen O’Malley
HADOOP-1744 Small cleanup of DistributedFileSystem and DFSClient (next) Trivial . Christophe Taton Christophe Taton
HADOOP-1743 INode refactoring Major . Konstantin Shvachko Konstantin Shvachko
HADOOP-1731 contrib jar file names should include hadoop version number Major . Doug Cutting Doug Cutting
HADOOP-1718 Test coverage target in build files using clover Major build Nigel Daley Nigel Daley
HADOOP-1703 Small cleanup of DistributedFileSystem and DFSClient Trivial . Christophe Taton Christophe Taton
HADOOP-1693 Remove LOG members from PendingReplicationBlocks and ReplicationTargetChooser. Major . Konstantin Shvachko Konstantin Shvachko
HADOOP-1687 Name-node memory size estimates and optimization proposal. Major . Konstantin Shvachko Konstantin Shvachko
HADOOP-1667 organize CHANGES.txt messages into sections for future releases Major documentation Doug Cutting Doug Cutting
HADOOP-1654 IOUtils class Major io Enis Soztutar Enis Soztutar
HADOOP-1626 DFSAdmin. Help messages are missing for -finalizeUpgrade and -metasave. Blocker . Konstantin Shvachko Lohit Vijayarenu
HADOOP-1621 Make FileStatus a concrete class Major fs Chris Douglas Chris Douglas
HADOOP-1610 Add metrics for failed tasks Major . Devaraj Das Devaraj Das
HADOOP-1595 Add an option to setReplication method to wait for completion of replication Major . Christian Kunz Tsz Wo Nicholas Sze
HADOOP-1592 Print the diagnostic error messages for FAILED task-attempts to the user console via TaskCompletionEvents Major . Arun C Murthy Amar Kamat
HADOOP-1500 typo’s in dfs webui Trivial . Nigel Daley Nigel Daley
HADOOP-1436 Redesign Tool and ToolBase API and releted functionality Major util Enis Soztutar Enis Soztutar
HADOOP-1425 Rework the various programs in ‘examples’ to extend ToolBase Minor . Arun C Murthy Enis Soztutar
HADOOP-1266 Remove DatanodeDescriptor dependency from NetworkTopology Major . Konstantin Shvachko Hairong Kuang
HADOOP-1231 Add generics to Mapper and Reducer interfaces Major . Owen O’Malley Tom White
HADOOP-1158 JobTracker should collect statistics of failed map output fetches, and take decisions to reexecute map tasks and/or restart the (possibly faulty) Jetty server on the TaskTracker Major . Devaraj Das Arun C Murthy
HADOOP-785 Divide the server and client configurations Major conf Owen O’Malley Arun C Murthy

BUG FIXES:

JIRA Summary Priority Component Reporter Contributor
HADOOP-2103 HADOOP-2046 caused some javadoc anomalies Major documentation Nigel Daley Nigel Daley
HADOOP-2102 ToolBase doesn’t keep configuration Blocker util Dennis Kubes Dennis Kubes
HADOOP-2080 ChecksumFileSystem checksum file size incorrect. Blocker fs Richard Lee Owen O’Malley
HADOOP-2073 Datanode corruption if machine dies while writing VERSION file Blocker . Michael Bieniosek Konstantin Shvachko
HADOOP-2072 RawLocalFileStatus is causing Path problems Major fs Dennis Kubes
HADOOP-2070 Test org.apache.hadoop.mapred.pipes.TestPipes.unknown failed Blocker . Mukund Madhugiri Owen O’Malley
HADOOP-2051 JobTracker’s TaskCommitQueue is vulnerable to non-IOExceptions Blocker . Arun C Murthy Arun C Murthy
HADOOP-2048 DISTCP mapper should report progress more often Blocker . Runping Qi Chris Douglas
HADOOP-2044 Namenode encounters ClassCastException exceptions for INodeFileUnderConstruction Blocker . dhruba borthakur dhruba borthakur
HADOOP-2033 In SequenceFile sync doesn’t work unless the file is compressed (block or record) Blocker . Owen O’Malley Owen O’Malley
HADOOP-2031 Lost tasktracker not handled properly leading to tips wrongly being kept as completed, and hence not rescheduled Blocker . Devaraj Das Devaraj Das
HADOOP-2028 distcp fails if log dir not specified and destination not present Blocker util Chris Douglas Chris Douglas
HADOOP-2026 Namenode prints out too many log lines for “Number of transactions” Blocker . dhruba borthakur dhruba borthakur
HADOOP-2023 TestLocalDirAllocator fails on Windows Blocker fs Mukund Madhugiri Hairong Kuang
HADOOP-2022 Task times are not saved correctly (bug in hadoop-1874) Blocker . Devaraj Das Amar Kamat
HADOOP-2018 Broken pipe SocketException in DataNode$DataXceiver Blocker . Konstantin Shvachko Hairong Kuang
HADOOP-2016 Race condition in removing a KILLED task from tasktracker Blocker . Devaraj Das Arun C Murthy
HADOOP-1997 TestCheckpoint fails on Windows Blocker . Konstantin Shvachko Konstantin Shvachko
HADOOP-1992 Sort validation is taking considerably longer than before Blocker . Mukund Madhugiri Arun C Murthy
HADOOP-1983 jobs using pipes interface with tasks not using java output format have a good chance of not updating progress and timing out Major . Christian Kunz Owen O’Malley
HADOOP-1978 Name-node should remove edits.new during startup rather than renaming it to edits. Blocker . Konstantin Shvachko Konstantin Shvachko
HADOOP-1973 NPE at JobTracker startup.. Blocker . Gautam Kowshik Amareshwari Sriramadasu
HADOOP-1961 -get, -copyToLocal fail when single filename is passed Blocker . Koji Noguchi Raghu Angadi
HADOOP-1959 Use of File.separator in StatusHttpServer prevents running Junit tests inside eclipse on Windows Minor . Jim Kellerman Jim Kellerman
HADOOP-1955 Corrupted block replication retries for ever Blocker . Koji Noguchi Raghu Angadi
HADOOP-1953 the job tracker should wait beteween calls to try and delete the system directory Blocker . Owen O’Malley Owen O’Malley
HADOOP-1948 Spurious error message during block crc upgrade. Blocker . Raghu Angadi Raghu Angadi
HADOOP-1946 du should be not called on every heartbeat Blocker . Konstantin Shvachko Hairong Kuang
HADOOP-1944 Maps which ran on trackers declared ‘lost’ are being marked as FAILED rather than KILLED Blocker . Arun C Murthy Devaraj Das
HADOOP-1940 TestDFSUpgradeFromImage doesn’t shut down its MiniDFSCluster Major test Chris Douglas Chris Douglas
HADOOP-1935 NullPointerException in internalReleaseCreate Blocker . Konstantin Shvachko dhruba borthakur
HADOOP-1934 the os.name string on Mac OS contains spaces, which causes the c++ compilation to fail Major . Owen O’Malley Owen O’Malley
HADOOP-1932 Test dfs.TestFileCreation.testFileCreation failed on Windows Blocker test Mukund Madhugiri dhruba borthakur
HADOOP-1930 Too many fetch-failures issue Blocker . Christian Kunz Arun C Murthy
HADOOP-1925 Hadoop Pipes doesn’t compile on solaris Major . Owen O’Malley Owen O’Malley
HADOOP-1910 Extra checks in DFS.create() are not necessary. Minor . Raghu Angadi Raghu Angadi
HADOOP-1907 JobClient.runJob kills the job for failed tasks with no diagnostics Major . Christian Kunz Christian Kunz
HADOOP-1904 ArrayIndexOutOfBoundException in BlocksMap Blocker . Konstantin Shvachko Konstantin Shvachko
HADOOP-1897 about.html page is there but not linked. Major . Enis Soztutar Enis Soztutar
HADOOP-1892 In the Job UI, some links don’t work Major . Devaraj Das Amar Kamat
HADOOP-1890 Revert a debug patch. Trivial . Raghu Angadi Raghu Angadi
HADOOP-1889 Fix path in EC2 scripts for building your own AMI Major contrib/cloud Tom White Tom White
HADOOP-1887 ArrayIndexOutOfBoundsException with trunk Major . Raghu Angadi dhruba borthakur
HADOOP-1885 Race condition in MiniDFSCluster shutdown Major test Chris Douglas Chris Douglas
HADOOP-1882 Remove extra ’*’s from FsShell.limitDecimal() Minor . Raghu Angadi Raghu Angadi
HADOOP-1875 multiple dfs.client.buffer.dir directories are not treated as alternatives Blocker fs Christian Kunz Hairong Kuang
HADOOP-1874 lost task trackers – jobs hang Blocker . Christian Kunz Devaraj Das
HADOOP-1846 DatanodeReport should distinguish live datanodes from dead datanodes Major . Hairong Kuang Hairong Kuang
HADOOP-1840 Task’s diagnostic messages are lost sometimes Critical . Arun C Murthy Arun C Murthy
HADOOP-1838 Files created with an pre-0.15 gets blocksize as zero, causing performance degradation Blocker . dhruba borthakur dhruba borthakur
HADOOP-1832 listTables() returns duplicate tables Major . Andrew Hitchcock Jim Kellerman
HADOOP-1825 hadoop-daemon.sh script fails if HADOOP_PID_DIR doesn’t exist Minor scripts Michael Bieniosek Michael Bieniosek
HADOOP-1819 The JobTracker should ensure that it is running on the right host. Major . Owen O’Malley Owen O’Malley
HADOOP-1818 MutliFileInputFormat returns “empty” MultiFileSplit when number of paths < number of splits Major . Thomas Friol Thomas Friol
HADOOP-1817 MultiFileSplit does not write and read the total length Major . Thomas Friol Thomas Friol
HADOOP-1812 TestIPC and TestRPC should use dynamically allocated ports Major ipc Doug Cutting Doug Cutting
HADOOP-1810 Incorrect Value type in MRBench (SmallJobs) Blocker . Devaraj Das Devaraj Das
HADOOP-1806 DfsTask no longer compiles Major build Chris Douglas Chris Douglas
HADOOP-1795 Task.moveTaskOutputs is escaping special characters in output filenames Critical . Frédéric Bertin Frédéric Bertin
HADOOP-1792 df command doesn’t exist under windows Major fs Benjamin Francisoud Mahadev konar
HADOOP-1788 Increase the buffer size of pipes from 1k to 128k Blocker . Owen O’Malley Amareshwari Sriramadasu
HADOOP-1783 keyToPath in Jets3tFileSystemStore needs to return absolute path Major fs/s3 Ahad Rana Tom White
HADOOP-1775 MapWritable and SortedMapWritable - Writable problems Major io Jim Kellerman Jim Kellerman
HADOOP-1772 Hadoop does not run in Cygwin in Windows Critical scripts Tsz Wo Nicholas Sze Tsz Wo Nicholas Sze
HADOOP-1771 streaming hang when IOException in MROutputThread. (NPE) Blocker . Koji Noguchi Lohit Vijayarenu
HADOOP-1758 processing escapes in a jute record is quadratic Blocker record Dick King Vivek Ratan
HADOOP-1749 TestDFSUpgrade some times fails with an assert Major . Raghu Angadi Enis Soztutar
HADOOP-1748 Task Trackers fail to launch tasks when they have relative log directories configured Major . Owen O’Malley Owen O’Malley
HADOOP-1739 ConnectException in TaskTracker Child Major . Srikanth Kakani Doug Cutting
HADOOP-1708 make files visible in the namespace as soon as they are created Major . dhruba borthakur dhruba borthakur
HADOOP-1695 Secondary Namenode halt when SocketTimeoutException at startup Blocker . Koji Noguchi dhruba borthakur
HADOOP-1692 DfsTask cache interferes with operation Minor util Chris Douglas Chris Douglas
HADOOP-1689 .sh scripts do not work on Solaris Minor scripts David Biesack Doug Cutting
HADOOP-1656 HDFS does not record the blocksize for a file Major . Sameer Paranjpye dhruba borthakur
HADOOP-1651 Some improvements in progress reporting Major . Devaraj Das Devaraj Das
HADOOP-1636 constant should be user-configurable: MAX_COMPLETE_USER_JOBS_IN_MEMORY Major . Michael Bieniosek Michael Bieniosek
HADOOP-1601 GenericWritable should use ReflectionUtils.newInstance to avoid problems with classloaders Major io Owen O’Malley Enis Soztutar
HADOOP-1573 Support for 0 reducers in PIPES Major . Christian Kunz Owen O’Malley
HADOOP-1569 distcp should use the Path -> FileSystem interface like the rest of Hadoop Major util Owen O’Malley Chris Douglas
HADOOP-1565 DFSScalability: reduce memory usage of namenode Major . dhruba borthakur dhruba borthakur
HADOOP-1463 dfs.datanode.du.reserved semantics being violated Blocker . Hairong Kuang Hairong Kuang
HADOOP-1316 “Go to parent directory” does not work on windows. Minor . Konstantin Shvachko Mahadev konar
HADOOP-1076 Periodic checkpointing cannot resume if the secondary name-node fails. Major . Konstantin Shvachko dhruba borthakur
HADOOP-1018 Single lost heartbeat leads to a “Lost task tracker” Major . Andrzej Bialecki Arun C Murthy
HADOOP-999 DFS Client should create file when the user creates the file Major . Owen O’Malley Tsz Wo Nicholas Sze
HADOOP-932 File locking interface and implementation should be remvoed. Minor fs Raghu Angadi Raghu Angadi
HADOOP-795 hdfs -cp /a/b/c /x/y acts like hdfs -cp /a/b/c/* /x/y Minor . arkady borkovsky Mahadev konar
HADOOP-120 Reading an ArrayWriter does not work because valueClass does not get initialized Major io Dick King Cameron Pope
HADOOP-89 files are not visible until they are closed Critical . Yoram Arnon dhruba borthakur

TESTS:

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SUB-TASKS:

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OTHER:

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HADOOP-1879 Warnings With JDK1.6.0_02 Minor . Nilay Vaish Nilay Vaish