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[MAPREDUCE-171] TestJobTrackerRestartWithLostTracker sometimes fails while validating history. - MapReduce - [issue]
...TestJobTrackerRestartWithLostTracker fails with following errorDuplicate START_TIME seen for task task_200906151249_0001_m_000001 in history file at line 54junit.framework.AssertionFailedErr...
http://issues.apache.org/jira/browse/MAPREDUCE-171    Author: Amareshwari Sriramadasu, 2014-07-22, 22:17
[MAPREDUCE-207] Computing Input Splits on the MR Cluster - MapReduce - [issue]
...Instead of computing the input splits as part of job submission, Hadoop could have a separate "job task type" that computes the input splits, therefore allowing that computation to happen on...
http://issues.apache.org/jira/browse/MAPREDUCE-207    Author: Philip Zeyliger, 2014-07-22, 22:14
[MAPREDUCE-3] Set mapred.child.ulimit automatically to the value of the RAM limits for a job, if they are set - MapReduce - [issue]
...Memory based monitoring and scheduling allow users to set memory limits for the tasks of their jobs. This parameter is the total memory taken by the task, and any children it may launch (for...
http://issues.apache.org/jira/browse/MAPREDUCE-3    Author: Hemanth Yamijala, 2014-07-22, 22:12
[MAPREDUCE-643] distcp -pugp error message is not clear when chgrp fail. - MapReduce - [issue]
...To achieve rsync-like behavior between a local directory and an HDFS instance, a pseudo-distributed MapReduce cluster was started, connected to a fully distributed HDFS instance. An initial ...
http://issues.apache.org/jira/browse/MAPREDUCE-643    Author: Aaron Kimball, 2014-07-22, 22:11
[MAPREDUCE-481] Improvements to Global Black-listing of TaskTrackers - MapReduce - [issue]
...HADOOP-4305 added a global black-list of tasktrackers.We saw a scenario on one of our clusters where a few jobs caused a lot of tasktrackers to immediately be blacklisted. This was caused by...
http://issues.apache.org/jira/browse/MAPREDUCE-481    Author: Arun C Murthy, 2014-07-22, 22:10
[MAPREDUCE-385] pipes does not allow jobconf values containing commas - MapReduce - [issue]
...Currently hadoop pipes does not allow a-jobconf <key>=<value>,<key>=<value>...commandline parameter with one or more commas in one of the values of the key-value pair...
http://issues.apache.org/jira/browse/MAPREDUCE-385    Author: Christian Kunz, 2014-07-22, 22:04
[MAPREDUCE-5994] native-task: TestBytesUtil fails - MapReduce - [issue]
...This class appears to have some bugs. Two tests fail consistently on my system. BytesUtil itself appears to duplicate a lot of code from guava - we should probably just use the Guava functio...
http://issues.apache.org/jira/browse/MAPREDUCE-5994    Author: Todd Lipcon, 2014-07-22, 21:58
[MAPREDUCE-562] A single slow (but not dead) map TaskTracker impedes MapReduce progress - MapReduce - [issue]
...We see cases where there may be a large number of mapper nodes running many tasks (e.g., a thousand). The reducers will pull 980 of the map task intermediate files down, but will be unable t...
http://issues.apache.org/jira/browse/MAPREDUCE-562    Author: Aaron Kimball, 2014-07-22, 21:50
[MAPREDUCE-5992] native-task test logs should not write to console - MapReduce - [issue]
...Most of our unit tests are configured with a log4j.properties test resource so they don't spout a bunch of output to the console. We need to do the same for native-task....
http://issues.apache.org/jira/browse/MAPREDUCE-5992    Author: Todd Lipcon, 2014-07-22, 21:32
[MAPREDUCE-352] Avoid creating JobInProgress objects before Access checks and Queues checks are done in JobTracker submitJob - MapReduce - [issue]
...In JobTracker submitJob , JobInProgress instance gets created . after this checks are done for access and queue state. In event of checks failed . There isn't any use for these JIP objects ,...
http://issues.apache.org/jira/browse/MAPREDUCE-352    Author: rahul k singh, 2014-07-22, 21:29
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