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https://issues.apache.org/jira/browse/HADOOP-4236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12638537#action_12638537
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Vinod K V commented on HADOOP-4236:
-----------------------------------
JobInProgess.kill() should be made re-entrant. We need this as some schedulers
may wish to kill jobs that violate certain resource requirements and we don't
want to waste cycles on terminating a job that is already killed.
Additionally, we will somehow need to inform job-clients which try to terminate
jobs for which a kill has already been issued. Currently, on re-kill attempts,
it just keeps saying "job is killed successfully".
> 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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