Place holder for job level diagnostic information
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Key: HADOOP-5541
URL: https://issues.apache.org/jira/browse/HADOOP-5541
Project: Hadoop Core
Issue Type: Bug
Components: mapred
Reporter: Vinod K V
In some scenarios, when framework itself fails/kills the job, there is no clear
way for the user to know what happened to the job. A job level diagnostic
string, perhaps displayed in JobStatus when queried from command line or view
from the web ui would help. Two cases I can think of:
- When a job is failed when it transgresses mapred.jobtracker.maxtasks.per.job.
- When CapacityScheduler kills a job when it detects that the job's memory
requirements can never be meant.
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