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Revision 785065

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Author: ddas
Date: Tue Jun 16 04:11:14 2009 UTC (14 years, 10 months ago)
Changed paths: 19
Log Message: 
HADOOP-2141. Improves the speculative execution heuristic. The heuristic is currently based on the progress-rates of tasks and the expected time to complete. Also, statistics about trackers are collected, and speculative tasks are not given to the ones deduced to be slow. Contributed by Andy Konwinski and Devaraj Das.

Changed paths

Path Details
Directoryhadoop/core/trunk/CHANGES.txt modified , text changed
Directoryhadoop/core/trunk/src/contrib/capacity-scheduler/src/java/org/apache/hadoop/mapred/CapacityTaskScheduler.java modified , text changed
Directoryhadoop/core/trunk/src/contrib/capacity-scheduler/src/test/org/apache/hadoop/mapred/TestCapacityScheduler.java modified , text changed
Directoryhadoop/core/trunk/src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/DefaultTaskSelector.java modified , text changed
Directoryhadoop/core/trunk/src/contrib/fairscheduler/src/java/org/apache/hadoop/mapred/FairScheduler.java modified , text changed
Directoryhadoop/core/trunk/src/contrib/fairscheduler/src/test/org/apache/hadoop/mapred/TestFairScheduler.java modified , text changed
Directoryhadoop/core/trunk/src/mapred/mapred-default.xml modified , text changed
Directoryhadoop/core/trunk/src/mapred/org/apache/hadoop/mapred/Clock.java added
Directoryhadoop/core/trunk/src/mapred/org/apache/hadoop/mapred/ClusterStatus.java modified , text changed
Directoryhadoop/core/trunk/src/mapred/org/apache/hadoop/mapred/JobInProgress.java modified , text changed
Directoryhadoop/core/trunk/src/mapred/org/apache/hadoop/mapred/JobTracker.java modified , text changed
Directoryhadoop/core/trunk/src/mapred/org/apache/hadoop/mapred/TaskInProgress.java modified , text changed
Directoryhadoop/core/trunk/src/mapred/org/apache/hadoop/mapred/TaskStatus.java modified , text changed
Directoryhadoop/core/trunk/src/mapred/org/apache/hadoop/mapred/TaskTrackerStatus.java modified , text changed
Directoryhadoop/core/trunk/src/test/mapred/org/apache/hadoop/mapred/TestJobQueueTaskScheduler.java modified , text changed
Directoryhadoop/core/trunk/src/test/mapred/org/apache/hadoop/mapred/TestParallelInitialization.java modified , text changed
Directoryhadoop/core/trunk/src/test/mapred/org/apache/hadoop/mapred/TestResourceEstimation.java modified , text changed
Directoryhadoop/core/trunk/src/test/mapred/org/apache/hadoop/mapred/TestSpeculativeExecution.java added
Directoryhadoop/core/trunk/src/test/mapred/org/apache/hadoop/mapred/UtilsForTests.java modified , text changed
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