hadoop-common-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4053) Schedulers need to know when a job has completed
Date Mon, 29 Sep 2008 16:57:46 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4053?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12635446#action_12635446
] 

Owen O'Malley commented on HADOOP-4053:
---------------------------------------

I propose that we protect ourselves from API changes in the future, by making the API:

{code}
  public void jobUpdated(JobChangeEvent e);
{code}

and the JobChangeEvent includes a getJobInProgress() method. That will allow us to add new
events in the future without having to change all of the schedulers.

> 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, HADOOP-4053-v2.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). 

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message