[jira] [Created] (MAPREDUCE-4710) Add peak memory usage counter for each task

2012-10-05 Thread Cindy Li (JIRA)
Cindy Li created MAPREDUCE-4710:
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 Summary: Add peak memory usage counter for each task
 Key: MAPREDUCE-4710
 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4710
 Project: Hadoop Map/Reduce
  Issue Type: New Feature
  Components: task
Affects Versions: 1.0.2
Reporter: Cindy Li
Priority: Minor


Each task has counters PHYSICAL_MEMORY_BYTES and VIRTUAL_MEMORY_BYTES, which 
are snapshots of memory usage of that task. They are not sufficient for users 
to understand peak memory usage by that task, e.g. in order to diagnose task 
failures, tune job parameters or change application design. This new feature 
will add two more counters for each task: PHYSICAL_MEMORY_BYTES_MAX and 
VIRTUAL_MEMORY_BYTES_MAX. 

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[jira] [Created] (MAPREDUCE-4711) Append time elapsed since job-start-time for finished tasks

2012-10-05 Thread Ravi Prakash (JIRA)
Ravi Prakash created MAPREDUCE-4711:
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 Summary: Append time elapsed since job-start-time for finished 
tasks
 Key: MAPREDUCE-4711
 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4711
 Project: Hadoop Map/Reduce
  Issue Type: Bug
  Components: jobhistoryserver
Affects Versions: 0.23.3
Reporter: Ravi Prakash
Assignee: Ravi Prakash


In 0.20.x/1.x, the analyze job link gave this information

bq. The last Map task task_sometask finished at (relative to the Job launch 
time): 5/10 20:23:10 (1hrs, 27mins, 54sec)

The time it took for the last task to finish needs to be calculated mentally in 
0.23. I believe we should print it next to the finish time.

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