TestCtlV3AuthGracefulDisable always fails in Coverage workflow

[ahrtr]

Which github workflows are flaking?

Coverage

Which tests are flaking?

TestCtlV3AuthGracefulDisable

Github Action link

https://github.com/etcd-io/etcd/actions/runs/3666035308/jobs/6197499132

Reason for failure (if possible)

   ctl_v3_auth_test.go:170: match not found.  Set EXPECT_DEBUG for more info Errs: [unexpected exit code [1] after running [/home/runner/work/etcd/etcd/bin/etcd_test grpc-proxy start --listen-addr localhost:20003 --endpoints http://localhost:20000 --advertise-client-url  --data-dir /tmp/TestCtlV3AuthGracefulDisable2565698461/002 --cert /home/runner/work/etcd/etcd/tests/fixtures/client-nocn.crt --key /home/runner/work/etcd/etcd/tests/fixtures/client-nocn.key.insecure --cacert /home/runner/work/etcd/etcd/tests/fixtures/ca.crt --client-crl-file /home/runner/work/etcd/etcd/tests/fixtures/revoke.crl -test.coverprofile=e2e.1670591664227553953.coverprofile -test.outputdir=/home/runner/work/etcd/etcd/covdir/e2e_proxy]], last lines:
        listen tcp 127.0.0.1:20003: bind: address already in use
        
    testutil.go:56: ---> Test failed: test timed out after 15s
    testutil.go:57: goroutine 558 [running]:
        go.etcd.io/etcd/client/pkg/v3/testutil.FatalStack(0xc0000164e0, {0xc000042738, 0x18})
        	/home/runner/work/etcd/etcd/client/pkg/testutil/testutil.go:55 +0x52
        go.etcd.io/etcd/tests/v3/e2e.runCtlTest(_, _, _, {0xc0000164e0, {0x0, 0x0}, {0x0, {0x0, 0x0}, {0x0, ...}, ...}, ...})
        	/home/runner/work/etcd/etcd/tests/e2e/ctl_v3_test.go:268 +0x29c
        go.etcd.io/etcd/tests/v3/e2e.testCtlWithOffline(0xc0000164e0, 0xec42d8?, 0x0, {0x0, 0x0, 0x0?})
        	/home/runner/work/etcd/etcd/tests/e2e/ctl_v3_test.go:240 +0x45b
        go.etcd.io/etcd/tests/v3/e2e.testCtl(...)
        	/home/runner/work/etcd/etcd/tests/e2e/ctl_v3_test.go:205
        go.etcd.io/etcd/tests/v3/e2e.TestCtlV3AuthGracefulDisable(0xc000064f60?)
        	/home/runner/work/etcd/etcd/tests/e2e/ctl_v3_auth_test.go:33 +0x29
        testing.tRunner(0xc0000164e0, 0xec3e60)
        	/opt/hostedtoolcache/go/1.19.4/x64/src/testing/testing.go:1446 +0x10b
        created by testing.(*T).Run
        	/opt/hostedtoolcache/go/1.19.4/x64/src/testing/testing.go:1493 +0x35f

Anything else we need to know?

No response

[ahrtr]

cc @tjungblu

[tjungblu]

thanks @ahrtr, seems it's having trouble with already running processes taking that port?

last lines:
listen tcp 127.0.0.1:20003: bind: address already in use

[ahrtr]

seems it's having trouble with already running processes taking that port?

Yes, could you or anyone take a deep dive into the issue?

[tjungblu]

sure, I can take a look if no one else wants to volunteer :)

[fuweid]

@ahrtr please assign it to me. I would like to handle this. Thanks!

[tjungblu]

Thanks and good luck, @fuweid!