[jira] Updated: (HADOOP-4236) JobTracker.killJob() fails to kill a job if the job is not yet initialized

["Sharad Agarwal (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-4236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sharad Agarwal updated HADOOP-4236:
-----------------------------------

    Attachment: 4236_v1.patch

this patch tries to solve the problem by setting flags. however, the ideal way to solve would be to have granular and one directional locking in jobtracker - HADOOP-869. 
- also it makes the terminateJob api back to private. Now EagerTaskInitializationListener uses fail().


> 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
>
>
> 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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