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https://issues.apache.org/jira/browse/IGNITE-23138?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Semyon Zikunov updated IGNITE-23138:
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Attachment: runKeyCollisionsMetric_analysis_en.txt
> Fix TxWithKeyContentionSelfTest (Cache 12 group)
> ------------------------------------------------
>
> Key: IGNITE-23138
> URL: https://issues.apache.org/jira/browse/IGNITE-23138
> Project: Ignite
> Issue Type: Test
> Reporter: Semyon Zikunov
> Assignee: Semyon Zikunov
> Priority: Trivial
> Labels: ise
> Attachments: runKeyCollisionsMetric_analysis_en.txt,
> runKeyCollisionsMetric_analysis_ru.txt
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> *Description:* The following tests are intermittently failing due to an
> {{AssertionError}} in Apache Ignite:
> * {{testOptimisticReadCommittedCheckContentionTxMetricNear}}
> * {{testOptimisticRepeatableReadCheckContentionTxMetric}}
> * {{testOptimisticReadCommittedCheckContentionTxMetric}}
> * {{testOptimisticRepeatableReadCheckContentionTxMetricNear}}
> * {{testPessimisticRepeatableReadCheckContentionTxMetric}}
> * {{testPessimisticRepeatableReadCheckContentionTxMetricNear}}
> The issue arises when the tests periodically fail at the
> {{assertTrue(GridTestUtils.waitForCondition())}} check. The condition
> compares the {{txKeyCollisions}} field in the transaction metrics, which
> sometimes returns an empty string. This leads to an {{AssertionError}} when
> attempting to validate {{{}coll1{}}}, indicating possible inconsistencies or
> timing issues with the metrics collection during test execution.
> *Tasks:*
> # Investigate the root cause of the {{txKeyCollisions}} field occasionally
> returning an empty string in the metrics.
> # Analyze whether timing or state propagation issues are causing the
> {{waitForCondition}} to pass before the {{txKeyCollisions}} metrics are
> populated.
> # Refactor the tests to ensure consistent metrics collection and validation,
> possibly adding additional synchronization or checks.
> # Verify the fix by running the tests repeatedly to confirm the flaky
> behavior is resolved.
> *Expected Result:* The tests run reliably without intermittent failures. The
> {{txKeyCollisions}} metrics are consistently populated, and the
> {{assertTrue}} check passes as expected, ensuring the tests no longer exhibit
> flakiness.
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