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Merge pull request #5945 from satnam6502/serve_hostnames

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Specify queries per node, increase pod start timeout
This commit is contained in:
Robert Bailey 2015-03-26 11:51:52 -07:00
commit 2cd9828c96
1 changed files with 19 additions and 17 deletions
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34
test/soak/serve_hostnames/serve_hostnames.go
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@ -40,8 +40,8 @@ import (
) )
var ( var (
queries = flag.Int("queries", 100, "Number of hostname queries to make in each iteration") queriesAverage = flag.Int("queries", 10, "Number of hostname queries to make in each iteration per pod on average")
perNode = flag.Int("per_node", 1, "Number of hostname pods per node") podsPerNode = flag.Int("pods_per_node", 1, "Number of serve_hostname pods per node")
upTo = flag.Int("up_to", 1, "Number of iterations or -1 for no limit") upTo = flag.Int("up_to", 1, "Number of iterations or -1 for no limit")
) )
@ -49,15 +49,15 @@ const (
deleteTimeout = 2 * time.Minute deleteTimeout = 2 * time.Minute
endpointTimeout = 5 * time.Minute endpointTimeout = 5 * time.Minute
podCreateTimeout = 2 * time.Minute podCreateTimeout = 2 * time.Minute
podStartTimeout = 5 * time.Minute podStartTimeout = 10 * time.Minute
serviceCreateTimeout = 2 * time.Minute serviceCreateTimeout = 2 * time.Minute
) )
func main() { func main() {
flag.Parse() flag.Parse()
glog.Infof("Starting serve_hostnames soak test with queries=%d and perNode=%d upTo=%d", glog.Infof("Starting serve_hostnames soak test with queries=%d and podsPerNode=%d upTo=%d",
*queries, *perNode, *upTo) *queriesAverage, *podsPerNode, *upTo)
settings, err := clientcmd.LoadFromFile(filepath.Join(os.Getenv("HOME"), ".kube", ".kubeconfig")) settings, err := clientcmd.LoadFromFile(filepath.Join(os.Getenv("HOME"), ".kube", ".kubeconfig"))
if err != nil { if err != nil {
@ -87,6 +87,8 @@ func main() {
glog.Infof("%d: %s", i, node.Name) glog.Infof("%d: %s", i, node.Name)
} }
queries := *queriesAverage * len(nodes.Items) * *podsPerNode
// Make a unique namespace for this test. // Make a unique namespace for this test.
r := rand.New(rand.NewSource(time.Now().UnixNano())) r := rand.New(rand.NewSource(time.Now().UnixNano()))
ns := "serve-hostnames-" + strconv.Itoa(r.Int()%10000) ns := "serve-hostnames-" + strconv.Itoa(r.Int()%10000)
@ -113,7 +115,7 @@ func main() {
}, },
}, },
}) })
glog.Infof("Service create %s/server-hostnames took %v", ns, time.Since(t)) glog.V(4).Infof("Service create %s/server-hostnames took %v", ns, time.Since(t))
if err == nil { if err == nil {
break break
} }
@ -138,7 +140,7 @@ func main() {
// Put serve-hostname pods on each node. // Put serve-hostname pods on each node.
podNames := []string{} podNames := []string{}
for i, node := range nodes.Items { for i, node := range nodes.Items {
for j := 0; j < *perNode; j++ { for j := 0; j < *podsPerNode; j++ {
podName := fmt.Sprintf("serve-hostname-%d-%d", i, j) podName := fmt.Sprintf("serve-hostname-%d-%d", i, j)
podNames = append(podNames, podName) podNames = append(podNames, podName)
// Make several attempts // Make several attempts
@ -163,7 +165,7 @@ func main() {
Host: node.Name, Host: node.Name,
}, },
}) })
glog.Infof("Pod create %s/%s request took %v", ns, podName, time.Since(t)) glog.V(4).Infof("Pod create %s/%s request took %v", ns, podName, time.Since(t))
if err == nil { if err == nil {
break break
} }
@ -181,10 +183,10 @@ func main() {
// Make several attempts to delete the pods. // Make several attempts to delete the pods.
for _, podName := range podNames { for _, podName := range podNames {
for start := time.Now(); time.Since(start) < deleteTimeout; time.Sleep(1 * time.Second) { for start := time.Now(); time.Since(start) < deleteTimeout; time.Sleep(1 * time.Second) {
if err := c.Pods(ns).Delete(podName); err == nil { if err = c.Pods(ns).Delete(podName); err == nil {
break break
} }
glog.Warningf("After %v failed to delete pod %s: %v", time.Since(start), podName, err) glog.Warningf("After %v failed to delete pod %s/%s: %v", time.Since(start), ns, podName, err)
} }
} }
}() }()
@ -234,9 +236,9 @@ func main() {
// Repeatedly make requests. // Repeatedly make requests.
for iteration := 0; iteration != *upTo; iteration++ { for iteration := 0; iteration != *upTo; iteration++ {
responses := make(map[string]int, *perNode*len(nodes.Items)) responses := make(map[string]int, *podsPerNode*len(nodes.Items))
start := time.Now() start := time.Now()
for q := 0; q < *queries; q++ { for q := 0; q < queries; q++ {
t := time.Now() t := time.Now()
hostname, err := c.Get(). hostname, err := c.Get().
Namespace(ns). Namespace(ns).
@ -244,7 +246,7 @@ func main() {
Resource("services"). Resource("services").
Name("serve-hostnames"). Name("serve-hostnames").
DoRaw() DoRaw()
glog.Infof("Proxy call in namespace %s took %v", ns, time.Since(t)) glog.V(4).Infof("Proxy call in namespace %s took %v", ns, time.Since(t))
if err != nil { if err != nil {
glog.Infof("Call failed during iteration %d query %d : %v", iteration, q, err) glog.Infof("Call failed during iteration %d query %d : %v", iteration, q, err)
} else { } else {
@ -253,17 +255,17 @@ func main() {
} }
for k, v := range responses { for k, v := range responses {
glog.Infof("%s: %d ", k, v) glog.V(4).Infof("%s: %d ", k, v)
} }
// Report any nodes that did not respond. // Report any nodes that did not respond.
for n, node := range nodes.Items { for n, node := range nodes.Items {
for i := 0; i < *perNode; i++ { for i := 0; i < *podsPerNode; i++ {
name := fmt.Sprintf("serve-hostname-%d-%d", n, i) name := fmt.Sprintf("serve-hostname-%d-%d", n, i)
if _, ok := responses[name]; !ok { if _, ok := responses[name]; !ok {
glog.Warningf("No response from pod %s on node %s at iteration %d", name, node.Name, iteration) glog.Warningf("No response from pod %s on node %s at iteration %d", name, node.Name, iteration)
} }
} }
} }
glog.Infof("Iteration %d took %v for %d queries (%.2f QPS)", iteration, time.Since(start), *queries, float64(*queries)/time.Since(start).Seconds()) glog.Infof("Iteration %d took %v for %d queries (%.2f QPS)", iteration, time.Since(start), queries, float64(queries)/time.Since(start).Seconds())
} }
} }