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[MAPREDUCE-4990] Construct debug strings conditionally in ShuffleHandler.Shuffle#sendMapOutput() - MapReduce - [issue]
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...In #sendMapOutput(), the debug statements are not wrapped in the customary #isDebugEnabled() condition. Given this piece of code is critical for performance, it would be nice to fix it....
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http://issues.apache.org/jira/browse/MAPREDUCE-4990
Author: Karthik Kambatla,
2013-03-20, 12:50
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[MAPREDUCE-4707] Add a comment to explain why FairScheduler#dump()'s body is synchronized on eventLog - MapReduce - [issue]
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...FairScheduler#dump() is a synchronized method. In addition to that, the entire method body is in a synchronized block on eventLog. However, there is no other portion of the code that tries t...
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http://issues.apache.org/jira/browse/MAPREDUCE-4707
Author: Karthik Kambatla,
2013-03-18, 16:36
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[MAPREDUCE-5005] TestProcfsProcessTree#testProcessTree() doesn't wait long enough for the process to die - MapReduce - [issue]
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...TestProcfsProcessTree#testProcessTree fails occasionally with the following stack traceStack Trace:junit.framework.AssertionFailedError: expected:<false> but was:<true> at...
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http://issues.apache.org/jira/browse/MAPREDUCE-5005
Author: Karthik Kambatla,
2013-03-12, 02:38
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[MAPREDUCE-5031] Maps hitting IndexOutOfBoundsException for higher values of mapreduce.task.io.sort.mb - MapReduce - [issue]
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...While trying to reproduce MAPREDUCE-5028 on trunk, ran into what seems to be a different issue. To reproduce:Psuedo-dist mode: mapreduce.{map,reduce}.memory.mb=2048, mapreduce.{map,reduce}.j...
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http://issues.apache.org/jira/browse/MAPREDUCE-5031
Author: Karthik Kambatla,
2013-03-04, 23:48
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[MAPREDUCE-5022] Tasklogs disappear if JVM reuse is enabled - MapReduce - [issue]
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...Can't see task logs when mapred.job.reuse.jvm.num.tasks is set to -1, but the logs are visible when the same is set 1....
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http://issues.apache.org/jira/browse/MAPREDUCE-5022
Author: Karthik Kambatla,
2013-02-22, 01:07
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[MAPREDUCE-4434] Backport MR-2779 (JobSplitWriter.java can't handle large job.split file) to branch-1 - MapReduce - [issue]
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http://issues.apache.org/jira/browse/MAPREDUCE-4434
Author: Karthik Kambatla,
2013-02-06, 01:43
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[MAPREDUCE-4973] Backport history clean up configurations to branch-1 - MapReduce - [issue]
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...In trunk-based versions, we can configure the max-age of files after which they will be cleaned up. This JIRA is to backport those configurations to branch-1....
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http://issues.apache.org/jira/browse/MAPREDUCE-4973
Author: Karthik Kambatla,
2013-02-05, 02:05
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[MAPREDUCE-4964] JobLocalizer#localizeJobFiles can potentially write job.xml to the wrong user's directory - MapReduce - [issue]
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...In the following code, if jobs corresponding to different users (X and Y) are localized simultaneously, it is possible that jobconf can be written to the wrong user's directory. (X's job.xml...
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http://issues.apache.org/jira/browse/MAPREDUCE-4964
Author: Karthik Kambatla,
2013-02-04, 22:17
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[MAPREDUCE-4925] The pentomino option parser may be buggy - MapReduce - [issue]
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...MAPREDUCE-4678 adds an easier way to specify arguments to Pentomino, although it seems to carry a bug when fetching values.This JIRA is for fixing that on trunk and backporting it onto branc...
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http://issues.apache.org/jira/browse/MAPREDUCE-4925
Author: Karthik Kambatla,
2013-01-16, 14:05
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[MAPREDUCE-4930] Backport MAPREDUCE-4678 and MAPREDUCE-4925 to branch-1 - MapReduce - [issue]
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...MAPREDUCE-4678 adds convenient arguments to Pentomino, which would be nice to have in other branches as well.However, MR-4678 introduces a bug - MR-4925 addresses this bug for all branches....
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http://issues.apache.org/jira/browse/MAPREDUCE-4930
Author: Karthik Kambatla,
2013-01-15, 14:11
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