### Which jobs are flaking?

master-blocking:
- integration-master 

### Which tests are flaking?

- `k8s.io/kubernetes/test/integration/kubelet.kubelet`
- `k8s.io/kubernetes/test/integration/apiserver: portforward`

### Since when has it been flaking?

This has been occasionally flaking for some time. Recent Failures:

[4/30/2024, 1:42:50 PM ci-kubernetes-integration-1-30](https://prow.k8s.io/view/gs/kubernetes-jenkins/logs/ci-kubernetes-integration-1-30/1785220481515786240)
[4/29/2024, 6:33:48 PM ci-kubernetes-integration-master](https://prow.k8s.io/view/gs/kubernetes-jenkins/logs/ci-kubernetes-integration-master/1784931323572391936)
[4/22/2024, 1:05:57 PM ci-kubernetes-integration-1-30](https://prow.k8s.io/view/gs/kubernetes-jenkins/logs/ci-kubernetes-integration-1-30/1782312093924462592)

[2024-06-03 22:44:28 +0000 UTC](https://prow.k8s.io/view/gs/kubernetes-jenkins/logs/ci-kubernetes-integration-master/1797761029896146944)

### Testgrid link

https://testgrid.k8s.io/sig-release-master-blocking#integration-master

### Reason for failure (if possible)

`k8s.io/kubernetes/test/integration/kubelet.kubelet`
```
E0429 13:44:12.935549  115466 etcd.go:221] "EtcdMain goroutine check" err=<
	found unexpected goroutines:
	[Goroutine 29225 in state select, with golang.org/x/net/http2.(*serverConn).serve on top of the stack:
	golang.org/x/net/http2.(*serverConn).serve(0xc006b7ba00)
```

`k8s.io/kubernetes/test/integration/apiserver: portforward`
```
E0603 23:09:41.143906  109550 etcd.go:221] "EtcdMain goroutine check" err=<
	found unexpected goroutines:
	[Goroutine 4444 in state chan send, with github.com/moby/spdystream.(*Connection).shutdown on top of the stack:
	github.com/moby/spdystream.(*Connection).shutdown(0xc0042c4f20, 0x0)
		/home/prow/go/src/k8s.io/kubernetes/vendor/github.com/moby/spdystream/connection.go:743 +0x285
	created by github.com/moby/spdystream.(*Connection).Close in goroutine 4437
		/home/prow/go/src/k8s.io/kubernetes/vendor/github.com/moby/spdystream/connection.go:769 +0x145
	]
 >
FAIL	k8s.io/kubernetes/test/integration/apiserver/portforward	9.811s
```


### Anything else we need to know?

Another leak was fixed at https://github.com/kubernetes/kubernetes/issues/116196.

### Relevant SIG(s)

/sig api-machinery
/sig testing
[Flaking Test] integration-master (goroutine leak detection)
This is a GitHub Issue
repo:kubernetes
owner:kubernetes
Title : [Flaking Test] integration-master (goroutine leak detection)
Issue date:

--- start body ---
### Which jobs are flaking?

master-blocking:
- integration-master 

### Which tests are flaking?

- `k8s.io/kubernetes/test/integration/kubelet.kubelet`
- `k8s.io/kubernetes/test/integration/apiserver: portforward`

### Since when has it been flaking?

This has been occasionally flaking for some time. Recent Failures:

[4/30/2024, 1:42:50 PM ci-kubernetes-integration-1-30](https://prow.k8s.io/view/gs/kubernetes-jenkins/logs/ci-kubernetes-integration-1-30/1785220481515786240)
[4/29/2024, 6:33:48 PM ci-kubernetes-integration-master](https://prow.k8s.io/view/gs/kubernetes-jenkins/logs/ci-kubernetes-integration-master/1784931323572391936)
[4/22/2024, 1:05:57 PM ci-kubernetes-integration-1-30](https://prow.k8s.io/view/gs/kubernetes-jenkins/logs/ci-kubernetes-integration-1-30/1782312093924462592)

[2024-06-03 22:44:28 +0000 UTC](https://prow.k8s.io/view/gs/kubernetes-jenkins/logs/ci-kubernetes-integration-master/1797761029896146944)

### Testgrid link

https://testgrid.k8s.io/sig-release-master-blocking#integration-master

### Reason for failure (if possible)

`k8s.io/kubernetes/test/integration/kubelet.kubelet`
```
E0429 13:44:12.935549  115466 etcd.go:221] "EtcdMain goroutine check" err=<
	found unexpected goroutines:
	[Goroutine 29225 in state select, with golang.org/x/net/http2.(*serverConn).serve on top of the stack:
	golang.org/x/net/http2.(*serverConn).serve(0xc006b7ba00)
```

`k8s.io/kubernetes/test/integration/apiserver: portforward`
```
E0603 23:09:41.143906  109550 etcd.go:221] "EtcdMain goroutine check" err=<
	found unexpected goroutines:
	[Goroutine 4444 in state chan send, with github.com/moby/spdystream.(*Connection).shutdown on top of the stack:
	github.com/moby/spdystream.(*Connection).shutdown(0xc0042c4f20, 0x0)
		/home/prow/go/src/k8s.io/kubernetes/vendor/github.com/moby/spdystream/connection.go:743 +0x285
	created by github.com/moby/spdystream.(*Connection).Close in goroutine 4437
		/home/prow/go/src/k8s.io/kubernetes/vendor/github.com/moby/spdystream/connection.go:769 +0x145
	]
 >
FAIL	k8s.io/kubernetes/test/integration/apiserver/portforward	9.811s
```


### Anything else we need to know?

Another leak was fixed at https://github.com/kubernetes/kubernetes/issues/116196.

### Relevant SIG(s)

/sig api-machinery
/sig testing
--- end body ---

None