Apache Hadoop Changelog

Release 0.3.0 - 2006-06-02

INCOMPATIBLE CHANGES:

JIRA	Summary	Priority	Component	Reporter	Contributor

IMPORTANT ISSUES:

JIRA	Summary	Priority	Component	Reporter	Contributor

NEW FEATURES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-256	Implement a C api for hadoop dfs	Major	.	Arun C Murthy	Arun C Murthy
HADOOP-233	add a http status server for the task trackers	Major	.	Owen O'Malley	Owen O'Malley
HADOOP-222	Set replication from dfsshell	Trivial	.	Johan Oskarsson	Johan Oskarsson
HADOOP-209	Add a program to recursively copy directories across file systems	Major	fs	Milind Bhandarkar
HADOOP-115	permit reduce input types to differ from reduce output types	Major	.	Runping Qi	Runping Qi

IMPROVEMENTS:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-254	use http to shuffle data between the maps and the reduces	Major	.	Owen O'Malley	Owen O'Malley
HADOOP-218	Inefficient calls to get configuration values in TaskInprogress	Minor	.	Mahadev konar	Mahadev konar
HADOOP-216	Task Detail web page missing progress	Trivial	.	Bryan Pendleton	Doug Cutting
HADOOP-212	allow changes to dfs block size	Critical	.	Owen O'Malley	Owen O'Malley
HADOOP-211	logging improvements for Hadoop	Minor	.	Sameer Paranjpye	Sameer Paranjpye
HADOOP-208	add failure page to webapp	Major	.	Owen O'Malley	Owen O'Malley
HADOOP-204	Need to tweak a few things in the metrics package to support the Simon plugin	Major	metrics	David Bowen	David Bowen
HADOOP-202	sort should use a smaller number of reduces	Trivial	.	Owen O'Malley	Owen O'Malley
HADOOP-195	improve performance of map output transfers	Major	.	Owen O'Malley	Owen O'Malley
HADOOP-75	dfs should check full file availability only at close	Minor	.	Doug Cutting	Milind Bhandarkar

BUG FIXES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-270	possible deadlock when shut down a datanode thread	Major	.	Hairong Kuang	Hairong Kuang
HADOOP-265	Abort tasktracker if it can not write to its local directories	Major	.	Hairong Kuang	Hairong Kuang
HADOOP-264	WritableFactory has no permissions to create DatanodeRegistration	Blocker	.	Owen O'Malley	Owen O'Malley
HADOOP-259	map output http client does not timeout	Major	.	Owen O'Malley	Owen O'Malley
HADOOP-251	progress report failures kill task	Major	.	Owen O'Malley	Owen O'Malley
HADOOP-247	The Reduce Task thread for reporting progress during the sort exits in case of any IOException	Critical	.	Mahadev konar	Mahadev konar
HADOOP-241	TestCopyFiles fails under cygwin due to incorrect path	Minor	fs	Konstantin Shvachko	Milind Bhandarkar
HADOOP-238	map outputs transfers fail with EOFException	Blocker	.	Owen O'Malley	Owen O'Malley
HADOOP-235	LocalFileSystem.openRaw() throws the wrong string for FileNotFoundException	Major	.	Benjamin Reed
HADOOP-229	hadoop cp should generate a better number of map tasks	Minor	fs	Yoram Arnon	Milind Bhandarkar
HADOOP-228	hadoop cp should have a -config option	Minor	fs	Yoram Arnon	Milind Bhandarkar
HADOOP-219	SequenceFile#handleChecksumException NPE	Trivial	io	stack	Doug Cutting
HADOOP-217	IllegalAcessException when creating a Block object via WritableFactories	Major	.	Hairong Kuang	Hairong Kuang
HADOOP-205	the job tracker does not schedule enough map on the cluster	Major	.	Owen O'Malley	Mahadev konar
HADOOP-200	The map task names are sent to the reduces	Major	.	Owen O'Malley	Owen O'Malley
HADOOP-180	task tracker times out cleaning big job	Major	.	Owen O'Malley	Owen O'Malley
HADOOP-179	task tracker ghosts remain after 10 minutes	Major	.	Owen O'Malley	Owen O'Malley
HADOOP-163	If a DFS datanode cannot write onto its file system. it should tell the name node not to assign new blocks to it.	Major	.	Runping Qi	Hairong Kuang
HADOOP-161	dfs blocks define equal, but not hashcode	Major	.	Owen O'Malley	Milind Bhandarkar
HADOOP-146	potential conflict in block id's, leading to data corruption	Major	.	Yoram Arnon	Konstantin Shvachko
HADOOP-141	Disk thrashing / task timeouts during map output copy phase	Major	.	p sutter	Owen O'Malley
HADOOP-124	don't permit two datanodes to run from same dfs.data.dir	Critical	.	Bryan Pendleton	Konstantin Shvachko

TESTS:

JIRA	Summary	Priority	Component	Reporter	Contributor

SUB-TASKS:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-220	Add -dfs and -jt command-line parameters to specify namenode and jobtracker.	Major	fs	Milind Bhandarkar	Milind Bhandarkar

OTHER:

JIRA	Summary	Priority	Component	Reporter	Contributor