Issue 1:
In this run:

http://kubekins.dls.corp.google.com:8080/view/Scalability/job/kubernetes-e2e-gke-large-cluster/51/console

131 tests failed.

However, most of them (all but two) failed with the following error:

01:40:47 Expected error:
01:40:47 <*errors.errorString | 0xc8200d80d0>: {
01:40:47 s: "timed out waiting for the condition",
01:40:47 }
01:40:47 timed out waiting for the condition
01:40:47 not to have occurred
01:40:47
01:40:47 /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/test/e2e/framework/framework.go:190

which means that we couldn't create a namespace.

However, I looked into logs of apiserver and there are not even such requests in apiserver.

Issue 2:
In gke-large-cluster suite, two tests failed for me with the following error:

"Unable to connect to the server: x509: certificate signed by unknown authority"

01:39:45 /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/test/e2e/kubeproxy.go:107
01:39:45
01:39:45 Expected error:
01:39:45 <*errors.errorString | 0xc8211d8480>: {
01:39:45 s: "Error running &{/workspace/kubernetes/platforms/linux/amd64/kubectl [kubectl --server=https://8.35.199.16 --kubeconfig=/workspace/.kube/config exec --namespace=e2e-tests-e2e-kubeproxy-rew7e host-test-container-pod -- /bin/sh -c for i in $(seq 1 5); do echo 'hostName' | timeout -t 3 nc -w 1 -u 10.38.215.4 8081; echo; sleep 1s; done | grep -v '^\\s*$' |sort | uniq -c | wc -l] [] <nil> Please enter Username: Please enter Password: Unable to connect to the server: x509: certificate signed by unknown authority\n [] <nil> 0xc82358a460 exit status 1 <nil> true [0xc820dd1790 0xc820dd17a8 0xc820dd17c0] [0xc820dd1790 0xc820dd17a8 0xc820dd17c0] [0xc820dd17a0 0xc820dd17b8] [0xa7bfc0 0xa7bfc0] 0xc820ffafc0}:\nCommand stdout:\nPlease enter Username: Please enter Password: \nstderr:\nUnable to connect to the server: x509: certificate signed by unknown authority\n\nerror:\nexit status 1\n",
01:39:45 }
01:39:45 Error running &{/workspace/kubernetes/platforms/linux/amd64/kubectl [kubectl --server=https://8.35.199.16 --kubeconfig=/workspace/.kube/config exec --namespace=e2e-tests-e2e-kubeproxy-rew7e host-test-container-pod -- /bin/sh -c for i in $(seq 1 5); do echo 'hostName' | timeout -t 3 nc -w 1 -u 10.38.215.4 8081; echo; sleep 1s; done | grep -v '^\s*$' |sort | uniq -c | wc -l] [] <nil> Please enter Username: Please enter Password: Unable to connect to the server: x509: certificate signed by unknown authority
01:39:45 [] <nil> 0xc82358a460 exit status 1 <nil> true [0xc820dd1790 0xc820dd17a8 0xc820dd17c0] [0xc820dd1790 0xc820dd17a8 0xc820dd17c0] [0xc820dd17a0 0xc820dd17b8] [0xa7bfc0 0xa7bfc0] 0xc820ffafc0}:
01:39:45 Command stdout:
01:39:45 Please enter Username: Please enter Password:
01:39:45 stderr:
01:39:45 Unable to connect to the server: x509: certificate signed by unknown authority
01:39:45
01:39:45 error:
01:39:45 exit status 1
01:39:45
01:39:45 not to have occurred
01:39:45
01:39:45 /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/test/e2e/framework/util.go:3449

Those errors come from:

http://kubekins.dls.corp.google.com:8080/view/Scalability/job/kubernetes-e2e-gke-large-cluster/51/console

@zmerlynn