[jira] [Commented] (AMBARI-12059) YARN tab should be before MapReduce2 tab when setting up configs in the launch wizard

["Andrii Babiichuk (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMBARI-12059?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14595175#comment-14595175 ] 

Andrii Babiichuk commented on AMBARI-12059:
-------------------------------------------

+1 for the patch

> YARN tab should be before MapReduce2 tab when setting up configs in the launch wizard
> -------------------------------------------------------------------------------------
>
>                 Key: AMBARI-12059
>                 URL: https://issues.apache.org/jira/browse/AMBARI-12059
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-web
>    Affects Versions: 2.1.0
>            Reporter: Antonenko Alexander
>            Assignee: Antonenko Alexander
>             Fix For: 2.2.0
>
>         Attachments: AMBARI-12059.patch
>
>
> MR configs rely on YARN configs for certain sizing i.e. map memory and reduce memory is dependent on yarn minimum allocation. 
> When trying to size MR configs, the minimum limit starts 0.66 GB on a 2 node vagrant cluster. There is no clear indication to the user why this min limit is setup.  Allow the user to progress to YARN first before tweaking MR configs would be better.



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