I am seeing "disruption_tests: [sig-network-edge] Cluster frontend ingress remain available" test fail in periodic-ci-openshift-release-master-nightly-4.9-upgrade-from-stable-4.8-e2e-aws-upgrade. This is one of the failures causing 4.9 payload releases from being accepted.

OCP 4.9

Sometimes

{Sep  6 15:24:54.995: Frontends were unreachable during disruption for at least 50s of 1h26m45s (1%):Sep 06 14:44:55.180 E ns/openshift-authentication route/oauth-openshift Route stopped responding to GET requests over new connections
Sep 06 14:44:55.180 - 12s   E ns/openshift-authentication route/oauth-openshift Route is not responding to GET requests over new connections
Sep 06 14:44:55.180 E ns/openshift-console route/console Route stopped responding to GET requests on reused connections
Sep 06 14:44:55.180 - 11s   E ns/openshift-console route/console Route is not responding to GET requests on reused connections
Sep 06 14:44:55.180 E ns/openshift-console route/console Route stopped responding to GET requests over new connections
Sep 06 14:44:55.180 - 11s   E ns/openshift-console route/console Route is not responding to GET requests over new connections
Sep 06 14:44:55.180 E ns/openshift-authentication route/oauth-openshift Route stopped responding to GET requests on reused connections
Sep 06 14:44:55.180 - 14s   E ns/openshift-authentication route/oauth-openshift Route is not responding to GET requests on reused connections
Sep 06 14:45:05.680 I ns/openshift-console route/console Route started responding to GET requests on reused connections
Sep 06 14:45:05.682 I ns/openshift-console route/console Route started responding to GET requests over new connections
Sep 06 14:45:05.685 I ns/openshift-authentication route/oauth-openshift Route started responding to GET requests over new connections
Sep 06 14:45:05.689 I ns/openshift-authentication route/oauth-openshift Route started responding to GET requests on reused connections Failure Sep  6 15:24:54.995: Frontends were unreachable during disruption for at least 50s of 1h26m45s (1%):Sep 06 14:44:55.180 E ns/openshift-authentication route/oauth-openshift Route stopped responding to GET requests over new connections
Sep 06 14:44:55.180 - 12s   E ns/openshift-authentication route/oauth-openshift Route is not responding to GET requests over new connections
Sep 06 14:44:55.180 E ns/openshift-console route/console Route stopped responding to GET requests on reused connections
Sep 06 14:44:55.180 - 11s   E ns/openshift-console route/console Route is not responding to GET requests on reused connections
Sep 06 14:44:55.180 E ns/openshift-console route/console Route stopped responding to GET requests over new connections
Sep 06 14:44:55.180 - 11s   E ns/openshift-console route/console Route is not responding to GET requests over new connections
Sep 06 14:44:55.180 E ns/openshift-authentication route/oauth-openshift Route stopped responding to GET requests on reused connections
Sep 06 14:44:55.180 - 14s   E ns/openshift-authentication route/oauth-openshift Route is not responding to GET requests on reused connections
Sep 06 14:45:05.680 I ns/openshift-console route/console Route started responding to GET requests on reused connections
Sep 06 14:45:05.682 I ns/openshift-console route/console Route started responding to GET requests over new connections
Sep 06 14:45:05.685 I ns/openshift-authentication route/oauth-openshift Route started responding to GET requests over new connections
Sep 06 14:45:05.689 I ns/openshift-authentication route/oauth-openshift Route started responding to GET requests on reused connectionsgithub.com/openshift/origin/test/extended/util/disruption/frontends.(*AvailableTest).Test(0xc0017492a8, 0xc001829760, 0xc000560360, 0x2)
    github.com/openshift/origin/test/extended/util/disruption/frontends/frontends.go:137 +0x8fb
github.com/openshift/origin/test/extended/util/disruption.(*chaosMonkeyAdapter).Test(0xc0016f6af0, 0xc001749440)
    github.com/openshift/origin/test/extended/util/disruption/disruption.go:190 +0x3be
k8s.io/kubernetes/test/e2e/chaosmonkey.(*Chaosmonkey).Do.func1(0xc001749440, 0xc0016b2250)
    k8s.io/kubernetes@v1.22.1/test/e2e/chaosmonkey/chaosmonkey.go:90 +0x6d
created by k8s.io/kubernetes/test/e2e/chaosmonkey.(*Chaosmonkey).Do
    k8s.io/kubernetes@v1.22.1/test/e2e/chaosmonkey/chaosmonkey.go:87 +0xc9}