[jira] [Commented] (AMBARI-24585) 'yarn.nodemanager.linux-container-executor.cgroups.hierarchy' is not equal to the value of yarn_hierarchy in UI Deploy

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

    [ https://issues.apache.org/jira/browse/AMBARI-24585?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16602862#comment-16602862 ] 

Andrii Tkach commented on AMBARI-24585:
---------------------------------------

committed to trunk and branch-2.7

> 'yarn.nodemanager.linux-container-executor.cgroups.hierarchy' is not equal to the value of yarn_hierarchy in UI Deploy
> ----------------------------------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-24585
>                 URL: https://issues.apache.org/jira/browse/AMBARI-24585
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-web
>    Affects Versions: 2.7.1
>            Reporter: Andrii Tkach
>            Assignee: Andrii Tkach
>            Priority: Blocker
>              Labels: pull-request-available
>             Fix For: 2.7.2
>
>         Attachments: Screen Shot 2018-09-02 at 10.20.43 PM.png, Screen Shot 2018-09-02 at 10.22.33 PM.png, Screen Shot 2018-09-02 at 10.25.08 PM.png
>
>          Time Spent: 1h 20m
>  Remaining Estimate: 0h
>
> The property 'yarn.nodemanager.linux-container-executor.cgroups.hierarchy' does not show up in the UI install wizard even when {{yarn_cgroups_enabled}} and {{gpu_module_enabled}} are enabled in YARN configs. But this property is available after deployment of the cluster.  
>  !Screen Shot 2018-09-02 at 10.20.43 PM.png|thumbnail! 
>  !Screen Shot 2018-09-02 at 10.22.33 PM.png|thumbnail! 
> When trying to set a value for the config 'yarn.nodemanager.linux-container-executor.cgroups.hierarchy', Stack advisor displays the following:
> {code}
> yarn.nodemanager.linux-container-executor.cgroups.hierarchy and yarn_hierarchy should always have same value
> yarn.nodemanager.linux-container-executor.cgroups.hierarchy and yarn_hierarchy should always have same value
> Name of the Cgroups hierarchy under which all YARN jobs will be launched
> {code}
>  !Screen Shot 2018-09-02 at 10.25.08 PM.png|thumbnail! 
> From the stack advisor description, looks like 'yarn.nodemanager.linux-container-executor.cgroups.hierarchy' property needs to be same as yarn_hierarchy. As part of UI Deploy, the property {{yarn_hierarchy}} is set to {{hadoop-yarn-tmp-ctr-e138-1518143905142-461959-01-000002.hwx.site}}. But after deploy, the {{yarn.nodemanager.linux-container-executor.cgroups.hierarchy}} is set to {{/yarn}} and not the property set while UI Deploy. This is causing Deploy failures due to Nodemanagers not getting started. When this property is set correctly, Nodemanagers start successfully. 



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