Change default cAdvisor housekeeping interval to 10s

pkg/kubelet/cadvisor/cadvisor_linux.go

@@ -19,6 +19,7 @@ limitations under the License.
 package cadvisor
 
 import (
+	"flag"
 	"fmt"
 	"net/http"
 	"regexp"
@@ -46,8 +47,17 @@ var _ Interface = new(cadvisorClient)
 // The amount of time for which to keep stats in memory.
 const statsCacheDuration = 2 * time.Minute
 const maxHousekeepingInterval = 15 * time.Second
+const defaultHousekeepingInterval = 10 * time.Second
 const allowDynamicHousekeeping = true
 
+func init() {
+	// Override the default cAdvisor housekeeping interval.
+	if f := flag.Lookup("housekeeping_interval"); f != nil {
+		f.DefValue = defaultHousekeepingInterval.String()
+		f.Value.Set(f.DefValue)
+	}
+}
+
 // Creates a cAdvisor and exports its API on the specified port if port > 0.
 func New(port uint) (Interface, error) {
 	sysFs, err := sysfs.NewRealSysFs()