Use fnv.New32a() in hash instead adler32

pkg/controller/lookup_cache.go

@@ -17,7 +17,7 @@ limitations under the License.
 package controller
 
 import (
-	"hash/adler32"
+	"hash/fnv"
 	"sync"
 
 	"github.com/golang/groupcache/lru"
@@ -33,7 +33,7 @@ type objectWithMeta interface {
 // Since we match objects by namespace and Labels/Selector, so if two objects have the same namespace and labels,
 // they will have the same key.
 func keyFunc(obj objectWithMeta) uint64 {
-	hash := adler32.New()
+	hash := fnv.New32a()
 	hashutil.DeepHashObject(hash, &equivalenceLabelObj{
 		namespace: obj.GetNamespace(),
 		labels:    obj.GetLabels(),