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https://issues.apache.org/jira/browse/DRILL-6668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16687412#comment-16687412
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Kunal Khatua commented on DRILL-6668:
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[~paul-rogers]
Prototype... mouse over {{Default}} button prompts with the message
!screenshot-1.png!
If the value is already default, the {{Default}} button is disabled.
Let me know if this is sufficient and I'll open a PR
> In Web Console, highlight options that are different from default values
> ------------------------------------------------------------------------
>
> Key: DRILL-6668
> URL: https://issues.apache.org/jira/browse/DRILL-6668
> Project: Apache Drill
> Issue Type: Improvement
> Components: Web Server
> Affects Versions: 1.14.0
> Reporter: Paul Rogers
> Assignee: Kunal Khatua
> Priority: Minor
> Fix For: 1.16.0
>
> Attachments: screenshot-1.png
>
>
> Suppose you inherit a Drill setup created by someone else (or by you, some
> time in the past). Or, suppose you are a support person. You want to know
> which Drill options have been changed from the defaults.
> The Web UI conveniently displays all options. But, there is no indication of
> which might have non-default values.
> After the improvements of the last year, the information needed to detect
> non-default values is now available. Would be great to mark these values.
> Perhaps using colors, perhaps with words.
> For example:
> *planner.width.max_per_node* 200 \[Update]
> Or
> planner.width.max_per_node (system) 200 \[Update]
> (The Web UI does not, I believe, show session settings, since the Web UI has
> no sessions. I believe the custom values are all set by {{ALTER SYSTEM}}.
> Otherwise, we could also have a "(session)" suffix above.)
> Then, in addition to the {{[Update]}} button, for non default values, also
> provide a {{[Reset]}} button that does the same as {{ALTER SESSION RESET}}.
> planner.width.max_per_node (session) 200 \[Update] \[Reset]
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