DM TestFailToStartLeader

[Ehco1996]

Which jobs are flaking?

https://ci.pingcap.net/blue/organizations/jenkins/ut-check/detail/ut-check/1237/pipeline/

Which test(s) are flaking?

TestFailToStartLeader

Jenkins logs or GitHub Actions link

[2022-02-10T10:59:54.496Z] goroutine 300 [semacquire, 4 minutes]:
[2022-02-10T10:59:54.496Z] sync.runtime_Semacquire(0xc001b6e090)
[2022-02-10T10:59:54.496Z] 	/usr/local/go/src/runtime/sema.go:56 +0x45
[2022-02-10T10:59:54.496Z] sync.(*WaitGroup).Wait(0xc001b6e088)
[2022-02-10T10:59:54.496Z] 	/usr/local/go/src/sync/waitgroup.go:130 +0xe5
[2022-02-10T10:59:54.496Z] github.com/pingcap/tiflow/dm/dm/master.(*Server).Close(0xc001b6e000)
[2022-02-10T10:59:54.496Z] 	/home/jenkins/agent/workspace/ut-check/tiflow/dm/dm/master/server.go:275 +0x15d
[2022-02-10T10:59:54.496Z] runtime.Goexit()
[2022-02-10T10:59:54.496Z] 	/usr/local/go/src/runtime/panic.go:632 +0x146
[2022-02-10T10:59:54.496Z] github.com/pingcap/check.(*C).stopNow(...)
[2022-02-10T10:59:54.496Z] 	/go/pkg/mod/github.com/pingcap/[email protected]/check.go:108
[2022-02-10T10:59:54.496Z] github.com/pingcap/check.(*C).Assert(0xc0002b2c30, 0x5a8b180, 0x92a7060, 0x71e7438, 0x8d882c0, 0xc0010d59d8, 0x1, 0x1)
[2022-02-10T10:59:54.496Z] 	/go/pkg/mod/github.com/pingcap/[email protected]/helpers.go:179 +0xc5
[2022-02-10T10:59:54.497Z] github.com/pingcap/tiflow/dm/dm/master.(*testElectionSuite).TestFailToStartLeader(0x9f17d98, 0xc0002b2c30)
[2022-02-10T10:59:54.497Z] 	/home/jenkins/agent/workspace/ut-check/tiflow/dm/dm/master/election_test.go:79 +0x103a
[2022-02-10T10:59:54.497Z] reflect.Value.call(0x5b4b8a0, 0x9f17d98, 0x213, 0x609a1a2, 0x4, 0xc0000e3ef0, 0x1, 0x1, 0xc000583d08, 0x4b4b4de, ...)
[2022-02-10T10:59:54.497Z] 	/usr/local/go/src/reflect/value.go:476 +0x99c
[2022-02-10T10:59:54.497Z] reflect.Value.Call(0x5b4b8a0, 0x9f17d98, 0x213, 0xc000583ef0, 0x1, 0x1, 0x0, 0x0, 0x0)
[2022-02-10T10:59:54.497Z] 	/usr/local/go/src/reflect/value.go:337 +0xd9
[2022-02-10T10:59:54.497Z] github.com/pingcap/check.(*suiteRunner).forkTest.func1(0xc0002b2c30)
[2022-02-10T10:59:54.497Z] 	/go/pkg/mod/github.com/pingcap/[email protected]/check.go:850 +0xb3c
[2022-02-10T10:59:54.497Z] github.com/pingcap/check.(*suiteRunner).forkCall.func1(0xc001149830, 0xc0002b2c30, 0xc000bd2ea0)
[2022-02-10T10:59:54.497Z] 	/go/pkg/mod/github.com/pingcap/[email protected]/check.go:739 +0x11e
[2022-02-10T10:59:54.497Z] created by github.com/pingcap/check.(*suiteRunner).forkCall
[2022-02-10T10:59:54.497Z] 	/go/pkg/mod/github.com/pingcap/[email protected]/check.go:734 +0x4cd
[2022-02-10T10:59:54.497Z] 

https://ci.pingcap.net/blue/organizations/jenkins/ut-check/detail/ut-check/1237/pipeline/

Anything else we need to know

• Does this test exist for other branches as well?

• Has there been a high frequency of failure lately?