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https://issues.apache.org/jira/browse/CASSANDRA-21276?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Niyam Siwach updated CASSANDRA-21276:
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Attachment: 21276-unit-tests.patch
> Fix s390x test failures in ViewPKTest, PartitionIndexTest, and MemoryTest on
> s390x
> ----------------------------------------------------------------------------------
>
> Key: CASSANDRA-21276
> URL: https://issues.apache.org/jira/browse/CASSANDRA-21276
> Project: Apache Cassandra
> Issue Type: Bug
> Components: Test/unit
> Reporter: Niyam Siwach
> Assignee: Niyam Siwach
> Priority: Normal
> Attachments: 21276-unit-tests.patch
>
>
> ViewPKTest.testNullInClusteringColumns performs base-table mutations with
> execute / executeNet, but materialized view updates are asynchronous.
> Switching these statements to updateView() makes the test wait for pending
> view mutations and avoids race-driven failures on slower s390x runs.
> PartitionIndexTest creates a helper thread with a 32 KB stack, which is too
> small on s390x and can fail in this environment. Increasing the stack size to
> 256 KB makes the test stable.
> MemoryTest currently relies on native-endian buffers, but Memory is defined
> as little-endian. On big-endian s390x, the test must compare against
> LITTLE_ENDIAN buffers explicitly, otherwise it validates the wrong byte order.
> This will be a test-only fix to make the existing test suite behave correctly
> on s390x without changing production behavior.
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