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Try to fix rare test flake in services e2e #18243

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Dec 8, 2015
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Try to fix rare test flake in services e2e #18243

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4 changes: 3 additions & 1 deletion test/e2e/service.go
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Expand Up @@ -394,8 +394,10 @@ var _ = Describe("Services", func() {
ip := pickNodeIP(c)
testReachable(ip, nodePort)

By("verifying the node port is locked")
hostExec := LaunchHostExecPod(f.Client, f.Namespace.Name, "hostexec")
cmd := fmt.Sprintf(`ss -ant46 'sport = :%d' | tail -n +2 | grep LISTEN`, nodePort)
// Loop a bit because we see transient flakes.
cmd := fmt.Sprintf(`for i in $(seq 1 10); do if ss -ant46 'sport = :%d' | grep ^LISTEN; then exit 0; fi; sleep 0.1; done; exit 1`, nodePort)
stdout, err := RunHostCmd(hostExec.Namespace, hostExec.Name, cmd)
if err != nil {
Failf("expected node port (%d) to be in use, stdout: %v", nodePort, stdout)
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