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[MAPREDUCE-6050] Upgrade JUnit3 TestCase to JUnit 4 - MapReduce - [issue]
...There are still test classes that extend from junit.framework.TestCase. upgrade them to JUnit4....
http://issues.apache.org/jira/browse/MAPREDUCE-6050    Author: Chen He, 2014-08-25, 17:23
[MAPREDUCE-4818] Easier identification of tasks that timeout during localization - MapReduce - [issue]
...When a task is taking too long to localize and is killed by the AM due to task timeout, the job UI/history is not very helpful.  The attempt simply lists a diagnostic stating it was kil...
http://issues.apache.org/jira/browse/MAPREDUCE-4818    Author: Jason Lowe, 2014-08-25, 14:28
[MAPREDUCE-6049] AM process continue to run even if job FAILED - MapReduce - [issue]
...Eventhough job got FAILED, AM process still not exitingThreadDump of AM process is below"Job Fail Wait Timeout Monitor #0" daemon prio=10 tid=0x0000000000aa9000 nid=0x41fa waiting on conditi...
http://issues.apache.org/jira/browse/MAPREDUCE-6049    Author: Nishan Shetty, 2014-08-25, 12:56
[MAPREDUCE-2980] Fetch failures and other related issues in Jetty 6.1.26 - MapReduce - [issue]
...Since upgrading Jetty from 6.1.14 to 6.1.26 we've had a ton of HTTP-related issues, including: Much higher incidence of fetch failures A few strange file-descriptor related bugs (eg MAPREDUC...
http://issues.apache.org/jira/browse/MAPREDUCE-2980    Author: Todd Lipcon, 2014-08-24, 08:12
[MAPREDUCE-6048] TestJavaSerialization fails in trunk build - MapReduce - [issue]
...This happened in builds #1871 and #1872testMapReduceJob(org.apache.hadoop.mapred.TestJavaSerialization)  Time elapsed: 2.784 sec  <<< FAILURE!junit.framework.ComparisonFai...
http://issues.apache.org/jira/browse/MAPREDUCE-6048    Author: Ted Yu, 2014-08-23, 17:08
[MAPREDUCE-6044] Fully qualified intermediate done directory will break per-user dir creation on Windows - MapReduce - [issue]
...After MAPREDUCE-6032, the string of the intermediate done dir will be a fully qualified path.The following code in JobHistoryUtils tries to concat this path and user name to create a per-use...
http://issues.apache.org/jira/browse/MAPREDUCE-6044    Author: Zhijie Shen, 2014-08-23, 16:07
[MAPREDUCE-4815] FileOutputCommitter.commitJob can be very slow for jobs with many output files - MapReduce - [issue]
...If a job generates many files to commit then the commitJob method call at the end of the job can take minutes.  This is a performance regression from 1.x, as 1.x had the tasks commit di...
http://issues.apache.org/jira/browse/MAPREDUCE-4815    Author: Jason Lowe, 2014-08-23, 00:48
[MAPREDUCE-6047] Introduce localization phase for mapreduce jobs - MapReduce - [issue]
...we have been experienced lots of task timeout due to localization of a large number of files. It would be great if we have an additional phase that keep track of how many files have been loc...
http://issues.apache.org/jira/browse/MAPREDUCE-6047    Author: Siqi Li, 2014-08-22, 19:11
[MAPREDUCE-5956] MapReduce AM should not use maxAttempts to determine if this is the last retry - MapReduce - [issue]
...Found this while reviewing YARN-2074. The problem is that after YARN-2074, we don't count AM preemption towards AM failures on RM side, but MapReduce AM itself checks the attempt id against ...
http://issues.apache.org/jira/browse/MAPREDUCE-5956    Author: Vinod Kumar Vavilapalli, 2014-08-22, 18:33
[MAPREDUCE-5974] Allow specifying multiple MapOutputCollectors with fallback - MapReduce - [issue]
...Currently we only allow specifying a single MapOutputCollector implementation class in a job. It would be nice to allow a comma-separated list of classes: we should try each collector implem...
http://issues.apache.org/jira/browse/MAPREDUCE-5974    Author: Todd Lipcon, 2014-08-22, 16:08
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