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[MAPREDUCE-5775] Remove unnecessary job.setNumReduceTasks in SleepJob.createJob - MapReduce - [issue]
...The two SleepJob's createJob() call job.setNumReduceTasks(numReducer) twice, which is unnecessary....
http://issues.apache.org/jira/browse/MAPREDUCE-5775    Author: Liyin Liang, 2014-08-15, 06:48
[MAPREDUCE-5799] add default value of MR_AM_ADMIN_USER_ENV - MapReduce - [issue]
...Submit a 1 map + 1 reduce sleep job with the following config:  <property>      <name>mapreduce.map.output.compress</name>     ...
http://issues.apache.org/jira/browse/MAPREDUCE-5799    Author: Liyin Liang, 2014-03-31, 23:59
[MAPREDUCE-5679] TestJobHistoryParsing has race condition - MapReduce - [issue]
...org.apache.hadoop.mapreduce.v2.hs.TestJobHistoryParsing can fail because of race condition.testHistoryParsingWithParseErrors(org.apache.hadoop.mapreduce.v2.hs.TestJobHistoryParsing)  Ti...
http://issues.apache.org/jira/browse/MAPREDUCE-5679    Author: Liyin Liang, 2014-02-24, 20:58
[MAPREDUCE-5691] Throttle shuffle's bandwidth utilization - MapReduce - [issue]
...In our hadoop cluster, a reducer of a big job can utilize all the bandwidth during shuffle phase. Then any task reading data from  the machine which running that reducer becomes very ve...
http://issues.apache.org/jira/browse/MAPREDUCE-5691    Author: Liyin Liang, 2013-12-30, 02:31
[MAPREDUCE-5690] TestLocalMRNotification.testMR occasionally fails - MapReduce - [issue]
...TestLocalMRNotificationis occasionally failing with the error:-------------------------------------------------------------------------------Test set: org.apache.hadoop.mapred.TestLocalMRNot...
http://issues.apache.org/jira/browse/MAPREDUCE-5690    Author: Liyin Liang, 2013-12-19, 05:08
[MAPREDUCE-5684] TestMRJobs.testFailingMapper occasionally fails - MapReduce - [issue]
...TestMRJobs is occasionally failing with the error:-------------------------------------------------------------------------------Test set: org.apache.hadoop.mapreduce.v2.TestMRJobs----------...
http://issues.apache.org/jira/browse/MAPREDUCE-5684    Author: Liyin Liang, 2013-12-19, 03:22
[MAPREDUCE-5614] job history file name should escape queue name - MapReduce - [issue]
...Our cluster's queue name contains hyphen e.g. cug-taobao. Because hyphen is the delimiter of job history file name, JobHistoryServer shows "cug" as the queue name. To fix this problem, we sh...
http://issues.apache.org/jira/browse/MAPREDUCE-5614    Author: Liyin Liang, 2013-12-14, 14:11
[MAPREDUCE-4978] Add a updateJobWithSplit() method for new-api job - MapReduce - [issue]
...HADOOP-1230 adds a method updateJobWithSplit(), which only works for old-api job. It's better to add another method for new-api job....
http://issues.apache.org/jira/browse/MAPREDUCE-4978    Author: Liyin Liang, 2013-11-04, 13:05
[MAPREDUCE-4478] TaskTracker's heartbeat is out of control - MapReduce - [issue]
http://issues.apache.org/jira/browse/MAPREDUCE-4478    Author: Liyin Liang, 2013-03-06, 09:55
[MAPREDUCE-2209] TaskTracker's heartbeat hang for several minutes when copying large job.jar from HDFS - MapReduce - [issue]
...If a job's jar file is very large, e.g 200m+, the TaskTracker's heartbeat hang for several minutes when localizing the job. The jstack of related threads are as follows:"TaskLauncher for tas...
http://issues.apache.org/jira/browse/MAPREDUCE-2209    Author: Liyin Liang, 2012-07-07, 13:09
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