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tests: stabilize TSO consistency after leader change #11220

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Merged
ti-chi-bot merged 3 commits into from
Sep 14, 2026
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Merged

tests: stabilize TSO consistency after leader change #11220

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95c4f30
tests: stabilize TSO consistency after leader change
rleungx Sep 10, 2026
8280d50
tests: preserve TSO consistency across leader changes
rleungx Sep 10, 2026
cc31d95
Merge master into fix-tso-consistency-leader-change-flake
rleungx Sep 11, 2026
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18 changes: 16 additions & 2 deletions tests/integrations/tso/consistency_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -146,10 +146,24 @@ func (suite *tsoConsistencyTestSuite) request(ctx context.Context, count uint32)
}

func (suite *tsoConsistencyTestSuite) TestRequestTSOConcurrently() {
re := suite.Require()
suite.requestTSOConcurrently()
// Test TSO after the leader change
suite.pdLeaderServer.GetServer().GetMember().Resign()
suite.cluster.WaitLeader()
re.NoError(suite.pdLeaderServer.ResignLeader())
leaderName := suite.cluster.WaitLeader()
re.NotEmpty(leaderName)
leader := suite.cluster.GetServer(leaderName)
suite.pdLeaderServer = leader
if suite.legacy {
// The PD leader is published before its embedded TSO allocator becomes
// ready. Wait for that separate readiness condition, then reconnect the
// direct test client to the new leader before checking TSO consistency.
testutil.Eventually(re, func() bool {
return leader.GetServer().GetTSOAllocator().IsInitialize()
})
re.NoError(suite.conn.Close())
suite.pdClient, suite.conn = testutil.MustNewGrpcClient(re, leader.GetAddr())
}
suite.requestTSOConcurrently()
}

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