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Extend resyncPeriods in controllers in production.

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This commit is contained in:
Wojciech Tyczynski
2015-10-06 11:12:00 +02:00
parent b0d748efb0
commit df79026b79
22 changed files with 109 additions and 89 deletions
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26
cmd/kube-controller-manager/app/controllermanager.go
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@@ -25,6 +25,7 @@ package app
import (
"fmt"
"io/ioutil"
"math/rand"
"net"
"net/http"
"net/http/pprof"
@@ -78,6 +79,7 @@ type CMServer struct {
TerminatedPodGCThreshold int
HorizontalPodAutoscalerSyncPeriod time.Duration
DeploymentControllerSyncPeriod time.Duration
MinResyncPeriod time.Duration
RegisterRetryCount int
NodeMonitorGracePeriod time.Duration
NodeStartupGracePeriod time.Duration
@@ -115,6 +117,7 @@ func NewCMServer() *CMServer {
PVClaimBinderSyncPeriod: 10 * time.Second,
HorizontalPodAutoscalerSyncPeriod: 30 * time.Second,
DeploymentControllerSyncPeriod: 30 * time.Second,
MinResyncPeriod: 12 * time.Hour,
RegisterRetryCount: 10,
PodEvictionTimeout: 5 * time.Minute,
ClusterName: "kubernetes",
@@ -157,6 +160,7 @@ func (s *CMServer) AddFlags(fs *pflag.FlagSet) {
fs.DurationVar(&s.ResourceQuotaSyncPeriod, "resource-quota-sync-period", s.ResourceQuotaSyncPeriod, "The period for syncing quota usage status in the system")
fs.DurationVar(&s.NamespaceSyncPeriod, "namespace-sync-period", s.NamespaceSyncPeriod, "The period for syncing namespace life-cycle updates")
fs.DurationVar(&s.PVClaimBinderSyncPeriod, "pvclaimbinder-sync-period", s.PVClaimBinderSyncPeriod, "The period for syncing persistent volumes and persistent volume claims")
fs.DurationVar(&s.MinResyncPeriod, "min-resync-period", s.MinResyncPeriod, "The resync period in reflectors will be random between MinResyncPeriod and 2*MinResyncPeriod")
fs.StringVar(&s.VolumeConfigFlags.PersistentVolumeRecyclerPodTemplateFilePathNFS, "pv-recycler-pod-template-filepath-nfs", s.VolumeConfigFlags.PersistentVolumeRecyclerPodTemplateFilePathNFS, "The file path to a pod definition used as a template for NFS persistent volume recycling")
fs.IntVar(&s.VolumeConfigFlags.PersistentVolumeRecyclerMinimumTimeoutNFS, "pv-recycler-minimum-timeout-nfs", s.VolumeConfigFlags.PersistentVolumeRecyclerMinimumTimeoutNFS, "The minimum ActiveDeadlineSeconds to use for an NFS Recycler pod")
fs.IntVar(&s.VolumeConfigFlags.PersistentVolumeRecyclerIncrementTimeoutNFS, "pv-recycler-increment-timeout-nfs", s.VolumeConfigFlags.PersistentVolumeRecyclerIncrementTimeoutNFS, "the increment of time added per Gi to ActiveDeadlineSeconds for an NFS scrubber pod")
@@ -191,6 +195,11 @@ func (s *CMServer) AddFlags(fs *pflag.FlagSet) {
fs.BoolVar(&s.EnableExperimental, "enable-experimental", s.EnableExperimental, "Enables experimental controllers (requires enabling experimental API on apiserver).")
}
func (s *CMServer) resyncPeriod() time.Duration {
factor := rand.Float64() + 1
return time.Duration(float64(s.MinResyncPeriod.Nanoseconds()) * factor)
}
// Run runs the CMServer. This should never exit.
func (s *CMServer) Run(_ []string) error {
if s.Kubeconfig == "" && s.Master == "" {
@@ -231,14 +240,14 @@ func (s *CMServer) Run(_ []string) error {
glog.Fatal(server.ListenAndServe())
}()
endpoints := endpointcontroller.NewEndpointController(kubeClient)
go endpoints.Run(s.ConcurrentEndpointSyncs, util.NeverStop)
go endpointcontroller.NewEndpointController(kubeClient, s.resyncPeriod).
Run(s.ConcurrentEndpointSyncs, util.NeverStop)
controllerManager := replicationControllerPkg.NewReplicationManager(kubeClient, replicationControllerPkg.BurstReplicas)
go controllerManager.Run(s.ConcurrentRCSyncs, util.NeverStop)
go replicationControllerPkg.NewReplicationManager(kubeClient, s.resyncPeriod, replicationControllerPkg.BurstReplicas).
Run(s.ConcurrentRCSyncs, util.NeverStop)
if s.TerminatedPodGCThreshold > 0 {
go gc.New(kubeClient, s.TerminatedPodGCThreshold).
go gc.New(kubeClient, s.resyncPeriod, s.TerminatedPodGCThreshold).
Run(util.NeverStop)
}
@@ -269,16 +278,15 @@ func (s *CMServer) Run(_ []string) error {
}
}
resourceQuotaController := resourcequotacontroller.NewResourceQuotaController(kubeClient)
resourceQuotaController.Run(s.ResourceQuotaSyncPeriod)
resourcequotacontroller.NewResourceQuotaController(kubeClient).Run(s.ResourceQuotaSyncPeriod)
namespacecontroller.NewNamespaceController(kubeClient, s.EnableExperimental, s.NamespaceSyncPeriod).Run()
if s.EnableExperimental {
go daemon.NewDaemonSetsController(kubeClient).
go daemon.NewDaemonSetsController(kubeClient, s.resyncPeriod).
Run(s.ConcurrentDSCSyncs, util.NeverStop)
go job.NewJobController(kubeClient).
go job.NewJobController(kubeClient, s.resyncPeriod).
Run(s.ConcurrentJobSyncs, util.NeverStop)
podautoscaler.NewHorizontalController(kubeClient, metrics.NewHeapsterMetricsClient(kubeClient)).