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https://issues.apache.org/jira/browse/AMBARI-16746?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15290898#comment-15290898
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Antonenko Alexander commented on AMBARI-16746:
----------------------------------------------
+1 for the patch
> Changing and saving the llap percentage slider does not change the YARN queue
> configuration
> --------------------------------------------------------------------------------------------
>
> Key: AMBARI-16746
> URL: https://issues.apache.org/jira/browse/AMBARI-16746
> Project: Ambari
> Issue Type: Bug
> Components: ambari-web
> Affects Versions: 2.4.0
> Reporter: Aleksandr Kovalenko
> Assignee: Aleksandr Kovalenko
> Priority: Critical
> Fix For: 2.4.0
>
> Attachments: AMBARI-16746.patch
>
>
> As solution, lets do yarn queue refresh when user explicitly triggers
> "Restart LLAP" custom action from service actions menu or under Hive Server
> Interactive host component action menu on host details page. This will make
> sure that when restart llap happens, it always has the latest
> capacity-scheduler configs.
> We can also optimize to do additional yarn queue refresh only when yarn
> configs are found to be stale. At this point lets use request_schedule API to
> batch "Refresh yarn queue" and "Restart LLAP" in single API call, so this can
> sustain browser refreshes and does not require the additional ui logic for
> persisting request state in the local DB or persist API endpoint. We can use
> following API:
> {code}
> curl
> 'http://c6401.ambari.apache.org:8080/api/v1/clusters/c1/request_schedules'
> --user admin:admin -H "X-Requested-By: ambari" -i -X POST --data
> '[{"RequestSchedule":{"batch":[{"requests":[{"order_id":1,"type":"POST","uri":"/api/v1/clusters/c1/requests","RequestBodyInfo":{"RequestInfo":{"context":"Refresh
> YARN Capacity
> Scheduler","command":"REFRESHQUEUES","parameters/forceRefreshConfigTags":"capacity-scheduler"},"Requests/resource_filters":[{"service_name":"YARN","component_name":"RESOURCEMANAGER","hosts":"c6401.ambari.apache.org"}]}},{"order_id":2,"type":"POST","uri":"/api/v1/clusters/c1/requests","RequestBodyInfo":{"RequestInfo":{"context":"Restart
>
> LLAP","command":"RESTART_LLAP"},"Requests/resource_filters":[{"service_name":"HIVE","component_name":"HIVE_SERVER_INTERACTIVE","hosts":"c6401.ambari.apache.org"}]}}]},{"batch_settings":{"batch_separation_in_seconds":1,"task_failure_tolerance":0}}]}}]'
> {code}
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