Michael Munday created SPARK-32588:
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Summary: 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
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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