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https://issues.apache.org/jira/browse/AMBARI-26647?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Himanshu Maurya resolved AMBARI-26647.
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Resolution: Fixed
> Ambari Web React: Fix Capacity Scheduler config editing format and add
> Refresh YARN Queues prompt
> -------------------------------------------------------------------------------------------------
>
> Key: AMBARI-26647
> URL: https://issues.apache.org/jira/browse/AMBARI-26647
> Project: Ambari
> Issue Type: Story
> Reporter: Himanshu Maurya
> Assignee: Himanshu Maurya
> Priority: Major
> Fix For: 3.1.0
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> h2. Summary
> The {{capacity-scheduler.xml}} properties on the YARN Advanced Configs tab
> were rendered as one input field per property, which does not match the
> classic Ember UI's dedicated combined-textarea editor and made bulk edits
> (adding/removing queues, editing multiple properties at once) awkward and
> error-prone. Saving a {{capacity-scheduler.xml}} change also silently skipped
> the "Refresh YARN Queues" prompt that the classic UI shows, so the new
> configuration was not actually applied to the running ResourceManager until a
> manual refresh.
> h2. Changes
> * {{capacity-scheduler.xml}} properties are now edited as a single combined
> {{{}key=value{}}}-per-line textarea, folded into the existing
> "CapacityScheduler" section (displayed as "Scheduler") instead of being
> rendered as their own separate accordion item with one field per property.
> This matches the classic Ember UI's {{App.CapacitySceduler}} widget.
> * Editing the textarea parses each {{key=value}} line back into the
> individual property map: existing properties are updated in place, new lines
> add new properties (cloned from an existing property's metadata), and removed
> lines delete the corresponding property.
> * After successfully saving configs, if any of the saved changes touched
> {{{}capacity-scheduler.xml{}}}, a confirmation popup now prompts the user to
> "Refresh YARN Queues." Accepting submits a YARN {{REFRESHQUEUES}} action
> against all hosts running the ResourceManager component, matching the classic
> UI's {{ComponentActionsByConfigs#showPopup}} behavior.
> h2. Impact
> Capacity Scheduler queue configuration can now be edited in bulk via a single
> textarea (matching the classic UI's editing experience), and saved changes
> are properly propagated to the running ResourceManager via the Refresh YARN
> Queues prompt instead of requiring a manual follow-up action.
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