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[MAPREDUCE-1981] Improve getSplits performance by using listLocatedStatus - MapReduce - [issue]
...This jira will make FileInputFormat and CombinedFileInputForm to use the new API, thus reducing the number of RPCs to HDFS NameNode....
http://issues.apache.org/jira/browse/MAPREDUCE-1981    Author: Hairong Kuang, 2014-09-04, 00:52
[MAPREDUCE-107] Tasks fail due to lost mapout - MapReduce - [issue]
...When I ran a job, each map task of which generates Gbytes of map output, I saw many tasks failed with following errors:Map output lost, rescheduling: getMapOutput(task_0993_m_000013_0,140) f...
http://issues.apache.org/jira/browse/MAPREDUCE-107    Author: Hairong Kuang, 2014-07-17, 18:11
[MAPREDUCE-104] Not able to refresh file cache - MapReduce - [issue]
...I ran a map/reduce job with file caching. When I reran it with an updated file jar, I got the following error :java.io.IOException: Cache XXX/hadoop/mapred/local/taskTracker/archive/YYY/inpu...
http://issues.apache.org/jira/browse/MAPREDUCE-104    Author: Hairong Kuang, 2013-09-03, 10:12
[MAPREDUCE-53] JUnit tests should not create directories in the current directory - MapReduce - [issue]
...PiEstimator.java, TestMapRed.java, and TestRecordMR.java create test directories in the current directory. I think that a better place is directory "./build/test"....
http://issues.apache.org/jira/browse/MAPREDUCE-53    Author: Hairong Kuang, 2011-12-31, 09:35
[MAPREDUCE-2263] MapReduce side of HADOOP-6904 - MapReduce - [issue]
...Make changes in Map/Reduce to incorporate HADOOP-6904....
http://issues.apache.org/jira/browse/MAPREDUCE-2263    Author: Hairong Kuang, 2011-11-15, 00:48
[MAPREDUCE-2185] Infinite loop at creating splits using CombineFileInputFormat - MapReduce - [issue]
...This is caused by a missing block in HDFS. So the block's locations are empty. The following code adds the block to blockToNodes map but not to rackToBlocks map. Later on when generating spl...
http://issues.apache.org/jira/browse/MAPREDUCE-2185    Author: Hairong Kuang, 2011-11-15, 00:48
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