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Merge pull request #27126 from wojtek-t/fix_intra_pod_test

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Make intra-pod networking test work in large clusters

Fix #27039

@zmerlynn
This commit is contained in:
k8s-merge-robot 2016-06-09 23:31:40 -07:00 committed by GitHub
commit 7b22e426ea
1 changed files with 12 additions and 1 deletions
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13
test/e2e/networking.go
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@ -113,6 +113,17 @@ var _ = framework.KubeDescribe("Networking", func() {
framework.ExpectNoError(framework.WaitForAllNodesSchedulable(f.Client)) framework.ExpectNoError(framework.WaitForAllNodesSchedulable(f.Client))
nodes := framework.GetReadySchedulableNodesOrDie(f.Client) nodes := framework.GetReadySchedulableNodesOrDie(f.Client)
// This test is super expensive in terms of network usage - large services
// result in huge "Endpoint" objects and all underlying pods read them
// periodically. Moreover, all KubeProxies watch all of them.
// Thus we limit the maximum number of pods under a service.
//
// TODO: Remove this limitation once services, endpoints and data flows
// between nodes and master are better optimized.
maxNodeCount := 250
if len(nodes.Items) > maxNodeCount {
nodes.Items = nodes.Items[:maxNodeCount]
}
if len(nodes.Items) == 1 { if len(nodes.Items) == 1 {
// in general, the test requires two nodes. But for local development, often a one node cluster // in general, the test requires two nodes. But for local development, often a one node cluster
@ -276,7 +287,7 @@ func LaunchNetTestPodPerNode(f *framework.Framework, nodes *api.NodeList, name s
Containers: []api.Container{ Containers: []api.Container{
{ {
Name: "webserver", Name: "webserver",
Image: "gcr.io/google_containers/nettest:1.8", Image: "gcr.io/google_containers/nettest:1.9",
Args: []string{ Args: []string{
"-service=" + name, "-service=" + name,
//peers >= totalPods should be asserted by the container. //peers >= totalPods should be asserted by the container.