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deflake ipv6 tcp close_wait

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This commit is contained in:
Antonio Ojea 2021-01-29 00:35:29 +01:00
parent 4a8b2d377b
commit 5f6763067b
1 changed files with 8 additions and 2 deletions
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10
test/e2e/network/kube_proxy.go
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@ -209,10 +209,10 @@ var _ = SIGDescribe("KubeProxy", func() {
// Obtain the corresponding conntrack entry on the host checking
// the nf_conntrack file from the pod e2e-net-exec.
// It retries in a loop if the entry is not found.
cmd := fmt.Sprintf("conntrack -L -f %s -d %v"+
cmd := fmt.Sprintf("conntrack -L -f %s -d %v "+
"| grep -m 1 'CLOSE_WAIT.*dport=%v' ",
ipFamily, ip, testDaemonTCPPort)
if err := wait.PollImmediate(1*time.Second, postFinTimeoutSeconds, func() (bool, error) {
if err := wait.PollImmediate(2*time.Second, epsilonSeconds, func() (bool, error) {
result, err := framework.RunHostCmd(fr.Namespace.Name, "e2e-net-exec", cmd)
// retry if we can't obtain the conntrack entry
if err != nil {
@ -234,6 +234,12 @@ var _ = SIGDescribe("KubeProxy", func() {
}
return false, fmt.Errorf("wrong TCP CLOSE_WAIT timeout: %v expected: %v", timeoutSeconds, expectedTimeoutSeconds)
}); err != nil {
// Dump all conntrack entries for debugging
result, err := framework.RunHostCmd(fr.Namespace.Name, "e2e-net-exec", "conntrack -L")
if err != nil {
framework.Logf("failed to obtain conntrack entry: %v %v", result, err)
}
framework.Logf("conntrack entries for node %v: %v", serverNodeInfo.nodeIP, result)
framework.Failf("no valid conntrack entry for port %d on node %s: %v", testDaemonTCPPort, serverNodeInfo.nodeIP, err)
}
})