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https://issues.apache.org/jira/browse/HADOOP-4053?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12637531#action_12637531
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Hemanth Yamijala commented on HADOOP-4053:
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Steve, the {{JobInProgressListener}} class which is going to listen to these
events is package private. So, wouldn't that require you to have classes in the
hadoop.mapred package anyway ? And AFAIK, we have kept the scheduler related
APIs package private where possible as we are still testing waters. HADOOP-3822
would be when we open this up, I guess.
> Schedulers need to know when a job has completed
> ------------------------------------------------
>
> Key: HADOOP-4053
> URL: https://issues.apache.org/jira/browse/HADOOP-4053
> Project: Hadoop Core
> Issue Type: Improvement
> Affects Versions: 0.19.0
> Reporter: Vivek Ratan
> Assignee: Amar Kamat
> Priority: Blocker
> Attachments: HADOOP-4053-v1.patch, HADOOP-4053-v2.patch,
> HADOOP-4053-v3.1.patch, HADOOP-4053-v3.2.patch, HADOOP-4053-v4.patch
>
>
> The JobInProgressListener interface is used by the framework to notify
> Schedulers of when jobs are added, removed, or updated. Right now, there is
> no way for the Scheduler to know that a job has completed. jobRemoved() is
> called when a job is retired, which can happen many hours after a job is
> actually completed. jobUpdated() is called when a job's priority is changed.
> We need to notify a listener when a job has completed (either successfully,
> or has failed or been killed).
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