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https://issues.apache.org/jira/browse/HADOOP-2778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12712031#action_12712031
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Steve Loughran commented on HADOOP-2778:
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Putting my Ant team hat on here, we dont think people should run builds 
designed to take days. We aren't that kind of workflow engine, we deliberately 
don't have all the failure handling logic you need in a big workflow. Something 
to submit jobs, return the URL as a string and an ant property -fine. Blocking 
your build for 4 days while you wait for a job to complete, not so good. 


> Hadoop job submission via ant using HMRExec
> -------------------------------------------
>
>                 Key: HADOOP-2778
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2778
>             Project: Hadoop Core
>          Issue Type: New Feature
>         Environment: Submit/monitor hadoop map-reduce jobs via ant
>            Reporter: Srikanth Kakani
>            Assignee: Srikanth Kakani
>         Attachments: 2778-1.patch, hadoop-hmrexec.patch
>
>
> Patch attached please check

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