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From "Amar Kamat (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-4053) Schedulers need to know when a job has completed
Date Wed, 17 Sep 2008 10:23:44 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-4053?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amar Kamat updated HADOOP-4053:
-------------------------------

    Attachment: HADOOP-4053-v1.patch

Attaching a patch the adds {{jobCompleted()}} api to {{JobInProgressListener}} which defaults
to {{jobRemoved()}}. {{JobTracker}} now calls {{jobCompleted()}} once the job finishes. Changed
{{TestCapcityScheduler}} to check if the job is removed from the queues. Testing in progress.

> 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
>             Fix For: 0.19.0
>
>         Attachments: HADOOP-4053-v1.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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