[SPARK-57351][K8S][CORE] Enable spark.kubernetes.executor.useDriverPodIP by default#56412
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[SPARK-57351][K8S][CORE] Enable spark.kubernetes.executor.useDriverPodIP by default#56412dongjoon-hyun wants to merge 1 commit into
spark.kubernetes.executor.useDriverPodIP by default#56412dongjoon-hyun wants to merge 1 commit into
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Could you review this PR too, @viirya ? |
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spark.kubernetes.executor.useDriverPodIP by defaultspark.kubernetes.executor.useDriverPodIP by default
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spark.kubernetes.executor.useDriverPodIP by defaultspark.kubernetes.executor.useDriverPodIP by default
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K8s integration tests passed. 
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Could you review this PR too, @sarutak ? |
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…odIP` by default ### What changes were proposed in this pull request? This PR sets the default value of `spark.kubernetes.executor.useDriverPodIP` to `true` at Apache Spark 4.3.0. ### Why are the changes needed? Introduced in SPARK-53944 (4.1.0), this option lets executor pods connect to the driver pod IP directly instead of the driver's Kubernetes `Service`, bypassing the known K8s DNS issue. Since a Spark driver pod is not restarted during an application, its IP is stable, making this a safe default that avoids DNS lookups. - #52650 ### Does this PR introduce _any_ user-facing change? Yes. By default, executor pods now connect to the driver via the driver pod IP instead of the driver `Service` DNS name. To restore the legacy behavior, set `spark.kubernetes.executor.useDriverPodIP` to `false`. ### How was this patch tested? Pass the CIs. ### Was this patch authored or co-authored using generative AI tooling? Generated-by: Claude Code (Opus 4.8) Closes #56412 from dongjoon-hyun/SPARK-57351. Authored-by: Dongjoon Hyun <dongjoon@apache.org> Signed-off-by: Dongjoon Hyun <dongjoon@apache.org> (cherry picked from commit 2bb8b20) Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
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What changes were proposed in this pull request?
This PR sets the default value of
spark.kubernetes.executor.useDriverPodIPtotrueat Apache Spark 4.3.0.Why are the changes needed?
Introduced in SPARK-53944 (4.1.0), this option lets executor pods connect to the driver pod IP directly instead of the driver's Kubernetes
Service, bypassing the known K8s DNS issue. Since a Spark driver pod is not restarted during an application, its IP is stable, making this a safe default that avoids DNS lookups.spark.kubernetes.executor.useDriverPodIP#52650Does this PR introduce any user-facing change?
Yes. By default, executor pods now connect to the driver via the driver pod IP instead of the driver
ServiceDNS name. To restore the legacy behavior, setspark.kubernetes.executor.useDriverPodIPtofalse.How was this patch tested?
Pass the CIs.
Was this patch authored or co-authored using generative AI tooling?
Generated-by: Claude Code (Opus 4.8)