[jira] [Created] (MAPREDUCE-6529) AppMaster will not retry to request resource if AppMaster happens to decide to not use the resource

2015-10-29 Thread Wei Chen (JIRA)
Wei Chen created MAPREDUCE-6529:
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 Summary: AppMaster will not retry to request resource if AppMaster 
happens to decide to not use the resource
 Key: MAPREDUCE-6529
 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6529
 Project: Hadoop Map/Reduce
  Issue Type: Improvement
  Components: mr-am
Affects Versions: 2.6.0
Reporter: Wei Chen






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[jira] [Created] (MAPREDUCE-6482) Since jvm reuse is not supported in hadoop 2.x, why I still find mapreduce.job.jvm.numtasks in mapre-default.xml

2015-09-17 Thread Wei Chen (JIRA)
Wei Chen created MAPREDUCE-6482:
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 Summary: Since jvm reuse is not supported in hadoop 2.x, why I 
still find mapreduce.job.jvm.numtasks in mapre-default.xml
 Key: MAPREDUCE-6482
 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6482
 Project: Hadoop Map/Reduce
  Issue Type: Bug
Affects Versions: 2.7.1, 2.7.0, 2.6.0
Reporter: Wei Chen






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[jira] [Created] (MAPREDUCE-6457) kill task before the task is truely runing on a slave node

2015-08-19 Thread Wei Chen (JIRA)
Wei Chen created MAPREDUCE-6457:
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 Summary: kill task before the task is truely runing on a slave node
 Key: MAPREDUCE-6457
 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6457
 Project: Hadoop Map/Reduce
  Issue Type: Bug
  Components: applicationmaster, mrv2
Affects Versions: 2.7.1, 2.6.0
 Environment: regular environment
Reporter: Wei Chen


I happned to find this bug. When I am doing some development based on 
Hadoop-2.6.0.  I happend to send to T_KILL signal to one of maptask before this 
task is register to TaskAttemptListener. Because the attempt is not assigned 
with a container yet. It may lead to a lot of errors.



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