yaooqinn opened a new pull request, #54638: URL: https://github.com/apache/spark/pull/54638
### What changes were proposed in this pull request? Highlights non-default Spark configuration values on the Environment page with amber background (`table-warning`). Adds a "Default Value" column and a toggle to show only modified values. **Changes:** - **EnvironmentPage.scala**: Embeds registered `ConfigEntry` defaults as JSON in the page - **environmentpage.js**: Parses defaults, adds "Default Value" column, highlights non-default rows, toggle with count badge - **EnvironmentPageSuite**: Test for defaults JSON rendering ### Why are the changes needed? When debugging Spark applications, users need to quickly identify which configs have been explicitly changed from defaults. Currently all 200+ properties look the same — no visual distinction between default and modified values. ### Does this PR introduce _any_ user-facing change? Yes — Spark Properties tab shows a "Default Value" column and amber highlighting for modified values, with a toggle to filter. ### How was this patch tested? Unit test added. Manual UI verification. ### Was this patch authored or co-authored using generative AI tooling? Yes, co-authored with GitHub Copilot. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
