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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4053) Schedulers need to know when a job has completed
Date Wed, 08 Oct 2008 10:39:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4053?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12637860#action_12637860
] 

Steve Loughran commented on HADOOP-4053:
----------------------------------------

how about it is kept package private for .19, for .20 it is moved and made public-but-internal
and intended for monitoring above and beyond scheduling?

> 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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