Apache Hadoop Changelog

Release 0.4.0 - 2006-06-28

NEW FEATURES:

JIRA Summary Priority Component Reporter Contributor
HADOOP-250 HTTP Browsing interface for DFS Health/Status Major . Devaraj Das
HADOOP-123 mini map/reduce cluster for junit tests Major . Owen O’Malley Milind Bhandarkar
HADOOP-296 Do not assign blocks to a datanode with < x mb free Major . Johan Oskarsson Johan Oskarsson

IMPROVEMENTS:

JIRA Summary Priority Component Reporter Contributor
HADOOP-298 nicer reports of progress for distcp Minor util Owen O’Malley Owen O’Malley
HADOOP-271 add links to task tracker http server from task details and failure pages Minor . Owen O’Malley Owen O’Malley
HADOOP-314 remove the append phase in sorting the reduce inputs Major . Owen O’Malley Owen O’Malley
HADOOP-301 the randomwriter example will clobber the output file Major . Owen O’Malley Owen O’Malley
HADOOP-305 tasktracker waits for 10 seconds for asking for a task. Minor . Mahadev konar Mahadev konar
HADOOP-59 support generic command-line options Minor conf Doug Cutting Hairong Kuang
HADOOP-326 cleanup of dead field (map ouput port) Minor . Owen O’Malley Owen O’Malley
HADOOP-328 add a -i option to distcp to ignore read errors of the input files Major util Owen O’Malley Owen O’Malley

BUG FIXES:

JIRA Summary Priority Component Reporter Contributor
HADOOP-299 maps from second jobs will not run until the first job finishes completely Major . Owen O’Malley Owen O’Malley
HADOOP-210 Namenode not able to accept connections Major . Mahadev konar Devaraj Das
HADOOP-311 dfs client timeout on read kills task Major . Owen O’Malley Owen O’Malley
HADOOP-316 job tracker has a deadlock Major . Owen O’Malley Owen O’Malley
HADOOP-317 “connection was forcibly closed” Exception in RPC on Windows Major ipc Konstantin Shvachko Doug Cutting
HADOOP-319 FileSystem “close” does not remove the closed fs from the fs map Major fs Hairong Kuang Hairong Kuang
HADOOP-135 Potential deadlock in JobTracker. Major . Konstantin Shvachko Owen O’Malley
HADOOP-278 a missing map/reduce input directory does not produce a user-visible error message Major . Owen O’Malley Owen O’Malley
HADOOP-304 UnregisteredDatanodeException message correction Trivial . Konstantin Shvachko Konstantin Shvachko
HADOOP-325 ClassNotFoundException under jvm 1.6 Major ipc Owen O’Malley Owen O’Malley
HADOOP-27 MapRed tries to allocate tasks to nodes that have no available disk space Major . Mike Cafarella
HADOOP-99 task trackers can only be assigned one task every heartbeat Major . Owen O’Malley Owen O’Malley
HADOOP-318 Progress in writing a DFS file does not count towards Job progress and can make the task timeout Major . Milind Bhandarkar Milind Bhandarkar