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Posted to reviews@spark.apache.org by "dongjoon-hyun (via GitHub)" <gi...@apache.org> on 2026/03/03 03:20:53 UTC
[PR] [SPARK-55807] Use Java 25 Compact Object Headers [spark-kubernetes-operator]
dongjoon-hyun opened a new pull request, #533:
URL: https://github.com/apache/spark-kubernetes-operator/pull/533
### What changes were proposed in this pull request?
This PR proposes to add `-XX:+UseCompactObjectHeaders` to the `operatorContainer.jvmArgs` in `build-tools/helm/spark-kubernetes-operator/values.yaml.
### Why are the changes needed?
To use Java 25 Compact Object Headers (`-XX:+UseCompactObjectHeaders`) for the `spark-kubernetes-operator` container. This feature is known to reduce significantly the memory footprint of Java objects.
- https://openjdk.org/jeps/519
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
Pass the CIs.
### Was this patch authored or co-authored using generative AI tooling?
No.
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Re: [PR] [SPARK-55807] Use Java 25 Compact Object Headers [spark-kubernetes-operator]
Posted by "dongjoon-hyun (via GitHub)" <gi...@apache.org>.
dongjoon-hyun closed pull request #533: [SPARK-55807] Use Java 25 Compact Object Headers
URL: https://github.com/apache/spark-kubernetes-operator/pull/533
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Re: [PR] [SPARK-55807] Use Java 25 Compact Object Headers [spark-kubernetes-operator]
Posted by "dongjoon-hyun (via GitHub)" <gi...@apache.org>.
dongjoon-hyun commented on PR #533:
URL: https://github.com/apache/spark-kubernetes-operator/pull/533#issuecomment-3988518643
Thank you, @viirya .
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Re: [PR] [SPARK-55807] Use Java 25 Compact Object Headers [spark-kubernetes-operator]
Posted by "dongjoon-hyun (via GitHub)" <gi...@apache.org>.
dongjoon-hyun commented on PR #533:
URL: https://github.com/apache/spark-kubernetes-operator/pull/533#issuecomment-3988522136
Merged to main
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