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[SPARK-56527][CORE] Rename internal config name spark.ui.(jettyS -> jetty.s)topTimeout#55395

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[SPARK-56527][CORE] Rename internal config name spark.ui.(jettyS -> jetty.s)topTimeout#55395
dongjoon-hyun wants to merge 1 commit intoapache:masterfrom
dongjoon-hyun:SPARK-56527

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What changes were proposed in this pull request?

This PR renames the internal UI configuration spark.ui.jettyStopTimeout to spark.ui.jetty.stopTimeout and registers the old name as an alternative via withAlternative for backward compatibility.

Why are the changes needed?

Like spark.rpc.netty., grouping Jetty-related settings under the spark.ui.jetty.* namespace makes the configuration hierarchy cleaner and leaves room for additional Jetty-related options in the future.

Does this PR introduce any user-facing change?

No. The configuration is .internal(), and the old key spark.ui.jettyStopTimeout still works via withAlternative.

How was this patch tested?

Pass the CIs. The configuration is referenced only by the existing UI_JETTY_STOP_TIMEOUT entry, and the binding-policy-exceptions list was updated accordingly.

Was this patch authored or co-authored using generative AI tooling?

Generated-by: Claude Opus 4.7

@dongjoon-hyun dongjoon-hyun changed the title [SPARK-56527] Rename internal config name spark.ui.(jettyS -> jetty.s)topTimeout [SPARK-56527][CORE] Rename internal config name spark.ui.(jettyS -> jetty.s)topTimeout Apr 17, 2026
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dongjoon-hyun commented Apr 17, 2026

FYI, this is independent but aligned with the following too.

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Could you review this config renaming PR when you have some time, @viirya ?

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Thank you so much, @viirya !

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Merged to master for Apache Spark 4.2.0.

@dongjoon-hyun dongjoon-hyun deleted the SPARK-56527 branch April 17, 2026 22:18
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