Top 10 flaky unit test cases

[wuhuizuo]

Enhancement for flaky unit test cases

Current

Between 2023-11-10 ~ 2023-11-22 🔥

These flaky ones recently sorted by occurrence:

• flaky test TestIndexMergeUpgradeFrom400To540 in session pkg #47035
• flaky test TestCursorFetchErrorInFetch in server pkg #47029
• flaky test TestMemTracker4InsertAndReplaceExec in executor/test/oomtest pkg #47032 (dup with flaky test TestMemTracker4InsertAndReplaceExec #40707)
• flaky test TestFailSchemaSyncer in pkg/ddl/tests/fail pkg #48758
• flaky test TestIntersectionWithDifferentConcurrency in pkg/executor/test/indexmergereadtest pkg #45632
• flaky test TestIndexMergeLimitNotPushedOnPartialSideButKeepOrder in pkg/executor/test/indexmergereadtest pkg #48759
• flaky test TestAddIndexIngestMultiSchemaChange in pkg/ddl/ingest pkg #48760
• flaky test TestAddIndexIngestGeneratedColumns in ddl/ingest pkg #46823 (dup with DATA RACE planner/core.(*PlanBuilder).rewriteExprNode #44919)
• flaky test TestDistFrameworkMeta in disttask/framework/storage pkg #47036
• flaky test TestTiDBCostModelUpgradeFrom610To650 in pkg/session pkg #48761

History

Between 2023-09-09 ~ 2023-09-16

These flaky ones recently sorted by occurrence:

• flaky test TestCursorFetchErrorInFetch in server pkg #47029
• flaky test TestMemTracker4InsertAndReplaceExec in executor/test/oomtest pkg #47032 (dup with flaky test TestMemTracker4InsertAndReplaceExec #40707)
• flaky test TestDistFrameworkMeta in disttask/framework/storage pkg #47036

Between 2023-09-01 ~ 2023-09-09

These flaky ones recently sorted by occurrence:

• flaky test TestFixControl45132 in planner/core/casetest pkg #46821
• flaky test TestAddIndexIngestRecoverPartition in ddl/ingest pkg #46822 (dup with unstable test TestAddIndexIngestRecoverPartition #45070)
• flaky test TestAddIndexIngestGeneratedColumns in ddl/ingest pkg #46823 (dup with DATA RACE planner/core.(*PlanBuilder).rewriteExprNode #44919)
• flaky test TestEnforceMPP #46415
• flaky test TestUpgradeWithPauseDDL in session/bootstraptest pkg #46824 (dup with session: make TestUpgradeWithPauseDDL stable #46692)
• flaky test TestExchangePartitionStates in table/tables/test/partition pkg #46825 (dup with unstable test TestExchangePartitionStates #46815)
• flaky test TestOwnerChange in disttask/framework pkg #46826
• flaky test TestHAManyNodes in disttask/framework pkg #46827
• flaky test TestTuner in util/gctuner pkg #46828
• flaky test TestAlterAddConstraintStateChange3 in ddl pkg #46829