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https://issues.apache.org/jira/browse/HADOOP-5785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12711105#action_12711105
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Devaraj Das commented on HADOOP-5785:
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Justification why it should be cluster-level config: (1) It is probably
something that would conflict with the model of having setup/cleanup tasks in
the first place, and hence should be applicable for all jobs or none. (2) It is
for latency sensitive apps, and such jobs are usually benchmarks (like
terasort) for which we probably will have a dedicated cluster, where we would
run only such jobs (3) Might add to confusion when it comes to debugging jobs
or the cluster itself.
The above is my opinion.. Open for discussion. I don't have a very strong
preference for one over the other.
> The job setup and cleanup tasks should be optional
> --------------------------------------------------
>
> Key: HADOOP-5785
> URL: https://issues.apache.org/jira/browse/HADOOP-5785
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Reporter: Owen O'Malley
> Assignee: Amareshwari Sriramadasu
>
> For jobs that require low latency and do not require setup or cleanup tasks
> for the job, it should be possible to turn them off for that job.
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