TestTSONotLeaderWhenRebaseErr is flaky

[YuhaoZhang00]

Flaky Test

Which jobs are failing

=== FAIL: TestLegacyTSOClientSuite/TestTSONotLeaderWhenRebaseErr (15.34s)
    client_test.go:509: 
        	Error Trace:	/home/prow/go/src/github.com/tikv/pd/tests/integrations/tso/client_test.go:509
        	Error:      	Received unexpected error:
        	            	[PD:etcd:ErrEtcdMoveLeader]etcdserver: request timed out, leader transfer took too long
        	Test:       	TestLegacyTSOClientSuite/TestTSONotLeaderWhenRebaseErr

CI link

• https://prow.tidb.net/view/gs/prow-tidb-logs/pr-logs/pull/tikv_pd/10478/pull-unit-test-next-gen-3/2036991279295893504

Reason for failure (if possible)

ResignLeaderWithRetry → ResignEtcdLeader → MoveEtcdLeader hits etcdserver: request timed out, leader transfer took too long. Likely caused by CI resource pressure. This failure also leaves the cluster leaderless, cascading into subsequent tests in the suite (TestTSOServiceDiscovery, TestUpdateAfterResetTSO) failing in SetupTest.

Anything else

• triage-key: testtsontleaderwhenrebaseerr
• test: TestTSONotLeaderWhenRebaseErr

[ti-chi-bot]

Welcome @YuhaoZhang00! It looks like this is your first issue to tikv/pd 🎉

[YuhaoZhang00]

/type ci