[jira] [Updated] (MAPREDUCE-2089) JobToken should be passed over RPC

["Arun C Murthy (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2089?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arun C Murthy updated MAPREDUCE-2089:
-------------------------------------

    Status: Open  (was: Patch Available)

Sorry to come in late, the patch has gone stale. Can you please rebase? Thanks.


> JobToken should be passed over RPC
> ----------------------------------
>
>                 Key: MAPREDUCE-2089
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2089
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: client, job submission, jobtracker, security, task, tasktracker
>            Reporter: Devaraj Das
>            Assignee: Devaraj Das
>         Attachments: mr-2089.patch, mr-2089.patch
>
>
> JobToken file is currently created by the JobTracker, and stored in the HDFS. Later on, the TaskTrackers pull that file from the HDFS as part of job localization. The HDFS operations can be avoided if the the jobToken file is passed over RPC (Jobclient -> JobTracker -> TaskTrackers).

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