[SPARK-53907][K8S] Support spark.kubernetes.allocation.maximum
#52615
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kazuyukitanimura
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Oct 14, 2025
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Thank you, @kazuyukitanimura . cc @peter-toth |
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+1, LGTM |
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Thank you, @vrozov . |
HyukjinKwon
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Oct 15, 2025
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Thank you, @HyukjinKwon . Merged to master for Apache Spark 4.1.0-preview3. |
dongjoon-hyun
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Oct 15, 2025
### What changes were proposed in this pull request? This PR aims to document newly added K8s configurations as a part of Apache Spark 4.1.0 preparation. ### Why are the changes needed? To sync the document with K8s `Config.scala`. For now, three PRs added four configurations. - #51522 - #51811 - #52615 ### Does this PR introduce _any_ user-facing change? No behavior change. This is only adding new configuration documents. ### How was this patch tested? Manual review. ### Was this patch authored or co-authored using generative AI tooling? No. Closes #52618 from dongjoon-hyun/SPARK-53913. Authored-by: Dongjoon Hyun <dongjoon@apache.org> Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
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What changes were proposed in this pull request?
This PR aims to support
spark.kubernetes.allocation.maximum.Why are the changes needed?
Since we use
AtomicIntegerID generator, we hit the overflow atInt.MaxValue. We had better throw exceptions explicitly in this case because it's highly a malfunctioning situation when a Spark driver tries to create2147483647 (Int.MaxValue)executor pods.spark/resource-managers/kubernetes/core/src/main/scala/org/apache/spark/scheduler/cluster/k8s/ExecutorPodsAllocator.scala
Line 49 in e05c75e
Does this PR introduce any user-facing change?
Practically no because a normal Spark job and K8s cluster cannot handle
2147483647executor pod creation. If a user has this case, it means the ID overflow happens and the ID will be rotated to0and the executor IDs will be reused. It's already a bug situation.How was this patch tested?
Pass the CIs with newly added test cases.
Was this patch authored or co-authored using generative AI tooling?
No.