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https://issues.apache.org/jira/browse/SPARK-32588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17175507#comment-17175507
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Apache Spark commented on SPARK-32588:
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User 'mundaym' has created a pull request for this issue:
https://github.com/apache/spark/pull/29407
> SizeEstimator class not always properly initialized in tests.
> -------------------------------------------------------------
>
> Key: SPARK-32588
> URL: https://issues.apache.org/jira/browse/SPARK-32588
> Project: Spark
> Issue Type: Bug
> Components: Tests
> Affects Versions: 3.0.0
> Environment: openjdk version "1.8.0_265"
> OpenJDK Runtime Environment (build 1.8.0_265-b01)
> Eclipse OpenJ9 VM (build openj9-0.21.0, JRE 1.8.0 Linux s390x-64-Bit
> 20200728_255 (JIT enabled, AOT enabled)
> OpenJ9 - 34cf4c075
> OMR - 113e54219
> JCL - c82ff0c20f based on jdk8u265-b01)
> Reporter: Michael Munday
> Priority: Minor
> Labels: OpenJ9
>
> The SizeEstimator class reads some system properties when it is initialized.
> Some tests override these system properties in order to force the
> SizeEstimator class to produce the same results on all platforms. However
> there are multiple places where the SizeEstimator class is either not
> re-initialized after system properties have been changed or system properties
> are not correctly set.
> This causes test failures when using OpenJ9 compiled in large heap mode. This
> build of OpenJ9 does not use compressed references which affects the settings
> that SizeEstimator is originally initialized with.
> I have a PR that fixes this and will submit it shortly.
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