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https://issues.apache.org/jira/browse/HADOOP-3102?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12587903#action_12587903
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Owen O'Malley commented on HADOOP-3102:
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I'd suggest using -track instead of connect, because you really aren't
connecting as much as wanting to track the status of the job.
> Facility to connect back to a job from the command line.
> ---------------------------------------------------------
>
> Key: HADOOP-3102
> URL: https://issues.apache.org/jira/browse/HADOOP-3102
> Project: Hadoop Core
> Issue Type: New Feature
> Components: mapred
> Reporter: Amar Kamat
> Priority: Minor
>
> There should a facility to connect back to a job from the command line. Once
> the job is fired from the client and say for some reason the connection is
> lost, there is no way to connect back for tracking the job's progress from
> the command line. Something like 'bin/hadoop job -connect <job-id>'.
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