[jira] [Updated] (AMBARI-3587) Reassign Master (non-secure): JobTracker reassignment does not need manual step.

["Jaimin D Jetly (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-3587?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jaimin D Jetly updated AMBARI-3587:
-----------------------------------

    Attachment: Reassign master JobTracker.png

> Reassign Master (non-secure): JobTracker reassignment does not need manual step.
> --------------------------------------------------------------------------------
>
>                 Key: AMBARI-3587
>                 URL: https://issues.apache.org/jira/browse/AMBARI-3587
>             Project: Ambari
>          Issue Type: Task
>          Components: client
>    Affects Versions: 1.4.2
>            Reporter: Jaimin D Jetly
>            Assignee: Jaimin D Jetly
>             Fix For: 1.4.2
>
>         Attachments: Reassign master JobTracker.png
>
>
> On manual step for JobTracker reassignment (non-secure cluster), We ask for copying content of directories listed in _mapred.local.dir_ property of mapred-site.xml to newly assigned JobTracker host. Apart from sub-directory _jobTracker_ inside the directory path stated by _mapred.local.dir_ property , all other sub-directories  are used by TaskTracker and are never accessed by JobTracker. 
> JobTracker creates job configuration xml file and it's CRC file for a running job inside  <mapred.local.dir value>/jobTracker directory. These are *temporary files* which are created when job starts and deleted after the job is completed.
> I was able to successfully reassign JobTracker without executing manual step in the wizard. Smoke test for all services passed successfully on the last step of the wizard. 
> *As a resolution to this ticket, We need to remove Manual commands step (Reassign master JobTracker.png) from JobTracker reassignment  wizard in non-secure setup.*
> Note: JobTracker Log directories are useful source of information that a user might want to copy to the target host but it's not a mandatory step and can be a part of ambari docs. 



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