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From "Sharad Agarwal (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4236) JobTracker.killJob() fails to kill a job if the job is not yet initialized
Date Tue, 14 Oct 2008 09:07:46 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12639353#action_12639353
] 

Sharad Agarwal commented on HADOOP-4236:
----------------------------------------

>> Shouldn't the change in kill() method be done in terminate() method, because the
same is valid for JobInProgress.fail() also.
we don't need for fail() as it is never called from user, also Jobtracker/scheduler should
not call fail and initTasks simultaneously.

> JobTracker.killJob() fails to kill a job if the job is not yet initialized
> --------------------------------------------------------------------------
>
>                 Key: HADOOP-4236
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4236
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.19.0
>            Reporter: Amar Kamat
>            Assignee: Sharad Agarwal
>            Priority: Blocker
>             Fix For: 0.19.0
>
>         Attachments: 4236_v1.patch, 4236_v2.patch
>
>
> HADOOP-3864 made the following changes to {{JobTracker.killJob()}}
> {code}
>    public synchronized void killJob(JobID jobid) {
>      JobInProgress job = jobs.get(jobid);
> -    job.kill();
> +    if (job.inited()) {
> +      job.kill();
> +    }
>    }
> {code}
> This is a bug as a job will not get killed if its not yet initialized.

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