Apache Hadoop Changelog

Release 0.9.0 - 2006-12-01

NEW FEATURES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-611	SequenceFile.Sorter should have a merge method that returns an iterator	Major	io	Owen O'Malley	Devaraj Das

IMPROVEMENTS:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-655	remove deprecations	Minor	.	Doug Cutting	Doug Cutting
HADOOP-565	Upgrade Jetty to 6.x	Major	.	Owen O'Malley	Sanjay Dahiya
HADOOP-688	move dfs administrative interfaces to a separate command	Major	.	dhruba borthakur	dhruba borthakur
HADOOP-613	The final merge on the reduces should feed the reduce directly	Major	.	Owen O'Malley	Devaraj Das
HADOOP-661	JobConf for a job should be viewable from the web/ui	Major	.	Owen O'Malley	Arun C Murthy
HADOOP-489	Seperating user logs from system logs in map reduce	Minor	.	Mahadev konar	Arun C Murthy
HADOOP-668	improvement to DFS browsing WI	Minor	.	Yoram Arnon	Hairong Kuang
HADOOP-538	Implement a nio's 'direct buffer' based wrapper over zlib to improve performance of java.util.zip.{De\|In}flater as a 'custom codec'	Major	io	Arun C Murthy	Arun C Murthy
HADOOP-721	jobconf.jsp shouldn't find the jobconf.xsl via http	Major	.	Owen O'Malley	Arun C Murthy
HADOOP-725	chooseTargets method in FSNamesystem is very inefficient	Major	.	Milind Bhandarkar	Milind Bhandarkar
HADOOP-677	RPC should send a fixed header and version at the start of connection	Major	ipc	Owen O'Malley	Owen O'Malley
HADOOP-76	Implement speculative re-execution of reduces	Minor	.	Doug Cutting	Sanjay Dahiya
HADOOP-689	hadoop should provide a common way to wrap instances with different types into one type	Major	io	Feng Jiang

BUG FIXES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-682	hadoop namenode -format doesnt work anymore if target directory doesnt exist	Major	.	Sanjay Dahiya
HADOOP-687	Upgrade to Jetty 6 does not patch bin/hadoop	Critical	scripts	Sameer Paranjpye	Sameer Paranjpye
HADOOP-683	bin/hadoop.sh doesn't work for /bin/dash (eg ubuntu 6.10b)	Trivial	scripts	James Todd
HADOOP-604	DataNodes get NullPointerException and become unresponsive on 50010	Major	.	Christian Kunz	Raghu Angadi
HADOOP-459	libhdfs leaks memory when writing to files	Major	.	Christian Kunz	Sameer Paranjpye
HADOOP-694	jobtracker expireluanching tasks throws out Nullpointer exceptions	Minor	.	Mahadev konar	Mahadev konar
HADOOP-637	ipc.Server has memory leak -- serious issue for namenode server	Major	ipc	Christian Kunz	Raghu Angadi
HADOOP-696	TestTextInputFormat fails on some platforms due to non-determinism in format.getSplits()	Minor	test	Sameer Paranjpye	Sameer Paranjpye
HADOOP-708	test-libhdfs.sh does not properly capture and return error status	Major	test	Nigel Daley	Nigel Daley
HADOOP-646	name node server does not load large (> 2^31 bytes) edits file	Critical	.	Christian Kunz	Milind Bhandarkar
HADOOP-705	IOException: job.xml already exists	Major	.	Nigel Daley	Mahadev konar
HADOOP-712	Record-IO XML serialization is broken for control characters	Major	record	Milind Bhandarkar	Milind Bhandarkar
HADOOP-716	Javadoc warning in SequenceFile.java	Minor	io	Devaraj Das	Devaraj Das
HADOOP-715	build.xml sets up wrong 'hadoop.log.dir' property for 'ant test'	Minor	test	Arun C Murthy	Arun C Murthy
HADOOP-722	native-hadoop deficiencies	Critical	.	Arun C Murthy	Arun C Murthy
HADOOP-710	block size isn't honored	Major	.	Nigel Daley	Milind Bhandarkar
HADOOP-695	Unexpected NPE from the next method of StreamLineRecordReader fails map/reduce jobs	Major	.	Hairong Kuang	Hairong Kuang
HADOOP-645	Map-reduce task does not finish correctly when -reducer NONE is specified	Major	.	dhruba borthakur	dhruba borthakur
HADOOP-729	packageNativeHadoop.sh has non-standard sh code	Critical	scripts	Arun C Murthy	Arun C Murthy
HADOOP-652	Not all Datastructures are updated when a block is deleted	Major	.	Raghu Angadi
HADOOP-723	Race condition exists in the method MapOutputLocation.getFile	Major	.	Devaraj Das	Owen O'Malley
HADOOP-447	DistributedFileSystem.getBlockSize(Path) does not resolve absolute path	Major	.	Benjamin Reed	Raghu Angadi
HADOOP-724	bin/hadoop:111 uses java directly, it should use JAVA_HOME	Minor	scripts	Sanjay Dahiya	Arun C Murthy
HADOOP-733	dfs shell has inconsistent exit codes	Major	.	Christian Kunz	dhruba borthakur
HADOOP-734	Link to the FAQ in the "Documentation" section of the hadoop website	Major	.	Konstantin Shvachko	Konstantin Shvachko
HADOOP-709	streaming job with Control characters in the command causes runtime exception in the job tracker	Major	.	dhruba borthakur	dhruba borthakur
HADOOP-699	"Browse the filesystem" link on Name Node redirects to wrong port on DataNode	Major	.	Raghu Angadi	Raghu Angadi
HADOOP-736	Roll back Jetty6.0.1 to Jetty5.1.4	Major	.	Devaraj Das	Devaraj Das
HADOOP-739	TestIPC occassionally fails with BindException	Minor	test	Nigel Daley	Nigel Daley
HADOOP-741	Fix average progress calculation in speculative execution of maps + fix pending issues in speculative execution of reduces	Major	.	Sanjay Dahiya	Sanjay Dahiya
HADOOP-749	The jobfailures.jsp gets a NullPointerException after a task tracker has been lost	Major	.	Owen O'Malley	Owen O'Malley
HADOOP-747	RecordIO compiler does not produce correct Java code when buffer is used as key or value in map	Major	record	Milind Bhandarkar	Milind Bhandarkar
HADOOP-698	When DFS client fails to read from a datanode, the failed datanode is not excluded from target reselection	Major	.	Hairong Kuang	Milind Bhandarkar
HADOOP-430	http server should die if the Datanode fails.	Major	.	Konstantin Shvachko	Wendy Chien
HADOOP-750	race condition on stalled map output fetches	Major	.	Owen O'Malley	Owen O'Malley
HADOOP-728	Map-reduce task does not produce correct results when -reducer NONE is specified through streaming	Major	.	dhruba borthakur	Sanjay Dahiya

TESTS:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-382	add a unit test for multiple datanodes in a machine	Major	.	Yoram Arnon	Milind Bhandarkar