TestScheduleTestSuite/TestAPI is unstable

[HuSharp]

Flaky Test

Which jobs are failing

2023-06-16T09:30:18.1799734Z --- FAIL: TestScheduleTestSuite (13.96s)
2023-06-16T09:30:18.1800068Z     --- FAIL: TestScheduleTestSuite/TestAPI (11.60s)
2023-06-16T09:30:18.1800323Z         scheduler_test.go:547: 
2023-06-16T09:30:18.1800906Z             	Error Trace:	/home/runner/work/pd/pd/server/api/scheduler_test.go:547
2023-06-16T09:30:18.1801916Z             	            				/home/runner/work/pd/pd/server/api/scheduler_test.go:381
2023-06-16T09:30:18.1802198Z             	Error:      	Not equal: 
2023-06-16T09:30:18.1802525Z             	            	expected: 1
2023-06-16T09:30:18.1802845Z             	            	actual  : 0
2023-06-16T09:30:18.1803200Z             	Test:       	TestScheduleTestSuite/TestAPI

CI link

https://github.com/tikv/pd/actions/runs/5288378224/jobs/9570004665

Reason for failure (if possible)

Anything else

[lhy1024]

again

2023-11-22T09:32:30.9732094Z --- FAIL: TestScheduleTestSuite (103.39s)
2023-11-22T09:32:30.9732545Z     --- FAIL: TestScheduleTestSuite/TestAPI (85.09s)
2023-11-22T09:32:30.9733031Z         testutil.go:264: start to run test in pd mode
2023-11-22T09:32:30.9733502Z         testutil.go:268: finish to run test in pd mode
2023-11-22T09:32:30.9733960Z         testutil.go:273: start to run test in api mode
2023-11-22T09:32:30.9734258Z         api_check.go:29: 
2023-11-22T09:32:30.9735157Z             	Error Trace:	/home/runner/work/pd/pd/pkg/utils/testutil/api_check.go:29
2023-11-22T09:32:30.9736441Z             	            				/home/runner/work/pd/pd/pkg/utils/testutil/api_check.go:157
2023-11-22T09:32:30.9737696Z             	            				/home/runner/work/pd/pd/pkg/utils/testutil/api_check.go:87
2023-11-22T09:32:30.9739031Z             	            				/home/runner/work/pd/pd/tests/server/api/scheduler_test.go:687
2023-11-22T09:32:30.9740488Z             	            				/opt/hostedtoolcache/go/1.21.4/x64/src/runtime/asm_amd64.s:1650
2023-11-22T09:32:30.9740841Z             	Error:      	Not equal: 
2023-11-22T09:32:30.9741289Z             	            	expected: 200
2023-11-22T09:32:30.9741736Z             	            	actual  : 500
2023-11-22T09:32:30.9742239Z             	Test:       	TestScheduleTestSuite/TestAPI
2023-11-22T09:32:30.9743303Z             	Messages:   	resp: [PD:scheduler:ErrSchedulerNotFound]scheduler not found
2023-11-22T09:32:30.9743619Z         testutil.go:64: 
2023-11-22T09:32:30.9744528Z             	Error Trace:	/home/runner/work/pd/pd/pkg/utils/testutil/testutil.go:64
2023-11-22T09:32:30.9746036Z             	            				/home/runner/work/pd/pd/tests/server/api/scheduler_test.go:686
2023-11-22T09:32:30.9747393Z             	            				/home/runner/work/pd/pd/tests/server/api/scheduler_test.go:562
2023-11-22T09:32:30.9748425Z             	            				/home/runner/work/pd/pd/tests/testutil.go:277
2023-11-22T09:32:30.9749627Z             	            				/home/runner/work/pd/pd/tests/testutil.go:259
2023-11-22T09:32:30.9750920Z             	            				/home/runner/work/pd/pd/tests/server/api/scheduler_test.go:117
2023-11-22T09:32:30.9751482Z             	Error:      	Condition never satisfied
2023-11-22T09:32:30.9751976Z             	Test:       	TestScheduleTestSuite/TestAPI
2023-11-22T09:32:30.9752104Z FAIL

https://github.com/tikv/pd/actions/runs/6955247357/job/18923644485?pr=7403