Apache Hadoop Changelog

Release 0.3.0 - 2006-06-02

NEW FEATURES:

JIRA Summary Priority Component Reporter Contributor
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
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-256 Implement a C api for hadoop dfs Major . Arun C Murthy Arun C Murthy

IMPROVEMENTS:

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

BUG FIXES:

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

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