[jira] [Assigned] (AMBARI-19737) Add a validation check in HSI about Capacity Scheduler preemption requirements

["Aravindan Vijayan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-19737?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aravindan Vijayan reassigned AMBARI-19737:
------------------------------------------

    Assignee: Swapan Shridhar  (was: Aravindan Vijayan)

> Add a validation check in HSI about Capacity Scheduler preemption requirements
> ------------------------------------------------------------------------------
>
>                 Key: AMBARI-19737
>                 URL: https://issues.apache.org/jira/browse/AMBARI-19737
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-server
>    Affects Versions: 2.4.2
>            Reporter: Swapan Shridhar
>            Assignee: Swapan Shridhar
>             Fix For: 2.5.0
>
>         Attachments: AMBARI-19737.patch, pjimage.jpg, Screen Shot 2017-01-26 at 1.28.16 PM.png
>
>
> Capacity Scheduler preemption is not enabled by default in HDP. Enabling it affects the entire cluster and LLAP is of concern in the bug.
> *Requirement:*
> - Add a validation check about CS preemption configuration, while LLAP is not enabled. 
> *Message:* 
> {noformat}
> Enabling YARN config 'yarn.resourcemanager.scheduler.monitor.enable' is recommended if enabling LLAP, to ensure it is able to get cluster capacity.
> {noformat}
> If CS preemption is enabled, no validation check required.
> -> Also, uncommenting and fixing the test code in test_stack_advisor::test_validateHiveInteractiveSiteConfigurations().



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