TestScheduleTestSuite is unstable

[lhy1024]

Flaky Test

Which jobs are failing

--- FAIL: TestScheduleTestSuite (71.71s)
    testutil.go:275: start test TestAPI in pd mode
    testutil.go:305: start test TestAPI in api mode
    --- FAIL: TestScheduleTestSuite/TestAPI (64.81s)
        scheduler_test.go:413: 
            	Error Trace:	/home/runner/work/pd/pd/tests/server/api/scheduler_test.go:413
            	            				/home/runner/work/pd/pd/tests/server/api/scheduler_test.go:520
            	            				/home/runner/work/pd/pd/tests/testutil.go:309
            	            				/home/runner/work/pd/pd/tests/testutil.go:270
            	            				/home/runner/work/pd/pd/tests/server/api/scheduler_test.go:133
            	Error:      	Not equal: 
            	            	expected: map[string]interface {}{"1":[]interface {}{map[string]interface {}{"end-key":"", "start-key":""}}}
            	            	actual  : map[string]interface {}{"1":[]interface {}{map[string]interface {}{"end-key":"", "start-key":""}}, "2":[]interface {}{map[string]interface {}{"end-key":"", "start-key":""}}}
            	            	
            	            	Diff:
            	            	--- Expected
            	            	+++ Actual
            	            	@@ -1,3 +1,9 @@
            	            	-(map[string]interface {}) (len=1) {
            	            	+(map[string]interface {}) (len=2) {
            	            	  (string) (len=1) "1": ([]interface {}) (len=1) {
            	            	+  (map[string]interface {}) (len=2) {
            	            	+   (string) (len=7) "end-key": (string) "",
            	            	+   (string) (len=9) "start-key": (string) ""
            	            	+  }
            	            	+ },
            	            	+ (string) (len=1) "2": ([]interface {}) (len=1) {
            	            	   (map[string]interface {}) (len=2) {
            	Test:       	TestScheduleTestSuite/TestAPI
    testutil.go:275: start test TestDisable in pd mode
    testutil.go:305: start test TestDisable in api mode
    --- FAIL: TestScheduleTestSuite/TestDisable (0.40s)
        api_check.go:29: 
            	Error Trace:	/home/runner/work/pd/pd/pkg/utils/testutil/api_check.go:29
            	            				/home/runner/work/pd/pd/pkg/utils/testutil/api_check.go:157
            	            				/home/runner/work/pd/pd/pkg/utils/testutil/api_check.go:105
            	            				/home/runner/work/pd/pd/tests/server/api/scheduler_test.go:638
            	            				/home/runner/work/pd/pd/tests/server/api/scheduler_test.go:609
            	            				/home/runner/work/pd/pd/tests/testutil.go:309
            	            				/home/runner/work/pd/pd/tests/testutil.go:270
            	            				/home/runner/work/pd/pd/tests/server/api/scheduler_test.go:587
            	Error:      	Not equal: 
            	            	expected: 200
            	            	actual  : 500
            	Test:       	TestScheduleTestSuite/TestDisable
            	Messages:   	resp: "[PD:scheduler:ErrSchedulerExisted]scheduler existed"

CI link

https://github.com/tikv/pd/actions/runs/7486974975/job/20378414748?pr=7691

Reason for failure (if possible)

Anything else