diff --git a/.golangci.yml b/.golangci.yml
index ed72e87a23d..261d25587d3 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -69,12 +69,11 @@ issues:
       linters:
         - gomnd
         - dupl
-    - path: pkg/apis/scheduling/v1beta1/conversion.go
-      linters:
-        - golint
-    - path: generated
+    - path: v1beta1
       linters:
         - golint
+        - deadcode
     - path: fake
       linters:
         - golint
+        - deadcode
diff --git a/pkg/apis/scheduling/register.go b/pkg/apis/scheduling/register.go
index e214a4e0302..cf62fb4e6ba 100644
--- a/pkg/apis/scheduling/register.go
+++ b/pkg/apis/scheduling/register.go
@@ -22,9 +22,8 @@ import (
 )
 
 var (
-	SchemeBuilder      = runtime.NewSchemeBuilder(addKnownTypes)
-	localSchemeBuilder = &SchemeBuilder
-	AddToScheme        = SchemeBuilder.AddToScheme
+	SchemeBuilder = runtime.NewSchemeBuilder(addKnownTypes)
+	AddToScheme   = SchemeBuilder.AddToScheme
 )
 
 // GroupName is the group name used in this package.
diff --git a/pkg/client/clientset/versioned/fake/register.go b/pkg/client/clientset/versioned/fake/register.go
index 07c3ad0a176..9c0015c32a8 100644
--- a/pkg/client/clientset/versioned/fake/register.go
+++ b/pkg/client/clientset/versioned/fake/register.go
@@ -31,7 +31,6 @@ import (
 
 var scheme = runtime.NewScheme()
 var codecs = serializer.NewCodecFactory(scheme)
-var parameterCodec = runtime.NewParameterCodec(scheme)
 var localSchemeBuilder = runtime.SchemeBuilder{
 	batchv1alpha1.AddToScheme,
 	busv1alpha1.AddToScheme,
diff --git a/pkg/scheduler/cache/cache_test.go b/pkg/scheduler/cache/cache_test.go
index c892d8368f7..91f3ba480d1 100644
--- a/pkg/scheduler/cache/cache_test.go
+++ b/pkg/scheduler/cache/cache_test.go
@@ -30,39 +30,6 @@ import (
 	"volcano.sh/volcano/pkg/scheduler/util"
 )
 
-func nodesEqual(l, r map[string]*api.NodeInfo) bool {
-	if len(l) != len(r) {
-		return false
-	}
-
-	for k, n := range l {
-		if !reflect.DeepEqual(n, r[k]) {
-			return false
-		}
-	}
-
-	return true
-}
-
-func jobsEqual(l, r map[api.JobID]*api.JobInfo) bool {
-	if len(l) != len(r) {
-		return false
-	}
-
-	for k, p := range l {
-		if !reflect.DeepEqual(p, r[k]) {
-			return false
-		}
-	}
-
-	return true
-}
-
-func cacheEqual(l, r *SchedulerCache) bool {
-	return nodesEqual(l.Nodes, r.Nodes) &&
-		jobsEqual(l.Jobs, r.Jobs)
-}
-
 func buildNode(name string, alloc v1.ResourceList) *v1.Node {
 	return &v1.Node{
 		ObjectMeta: metav1.ObjectMeta{
@@ -111,13 +78,6 @@ func buildResourceList(cpu string, memory string) v1.ResourceList {
 	}
 }
 
-func buildResource(cpu string, memory string) *api.Resource {
-	return api.NewResource(v1.ResourceList{
-		v1.ResourceCPU:    resource.MustParse(cpu),
-		v1.ResourceMemory: resource.MustParse(memory),
-	})
-}
-
 func buildOwnerReference(owner string) metav1.OwnerReference {
 	controller := true
 	return metav1.OwnerReference{
diff --git a/pkg/scheduler/plugins/predicates/predicates.go b/pkg/scheduler/plugins/predicates/predicates.go
index 52c99d399a0..bde08fec717 100644
--- a/pkg/scheduler/plugins/predicates/predicates.go
+++ b/pkg/scheduler/plugins/predicates/predicates.go
@@ -17,9 +17,6 @@ limitations under the License.
 package predicates
 
 import (
-	"fmt"
-	"strings"
-
 	"k8s.io/klog"
 	"k8s.io/kubernetes/pkg/scheduler/algorithm"
 	"k8s.io/kubernetes/pkg/scheduler/algorithm/predicates"
@@ -56,15 +53,6 @@ func (pp *predicatesPlugin) Name() string {
 	return PluginName
 }
 
-func formatReason(reasons []predicates.PredicateFailureReason) string {
-	reasonStrings := []string{}
-	for _, v := range reasons {
-		reasonStrings = append(reasonStrings, fmt.Sprintf("%v", v.GetReason()))
-	}
-
-	return strings.Join(reasonStrings, ", ")
-}
-
 type predicateEnable struct {
 	memoryPressureEnable bool
 	diskPressureEnable   bool
diff --git a/test/e2e/util.go b/test/e2e/util.go
index f3047d8c0a6..2b210dec1ab 100644
--- a/test/e2e/util.go
+++ b/test/e2e/util.go
@@ -1082,27 +1082,6 @@ func IsNodeReady(node *v1.Node) bool {
 	return false
 }
 
-func waitClusterReady(ctx *context) error {
-	return wait.Poll(100*time.Millisecond, oneMinute, func() (bool, error) {
-		if readyNodeAmount(ctx) >= 1 {
-			return true, nil
-		}
-		return false, nil
-	})
-}
-
-func readyNodeAmount(ctx *context) int {
-	var amount int
-	nodes, err := ctx.kubeclient.CoreV1().Nodes().List(metav1.ListOptions{})
-	Expect(err).NotTo(HaveOccurred())
-	for _, n := range nodes.Items {
-		if IsNodeReady(&n) && len(n.Spec.Taints) == 0 {
-			amount++
-		}
-	}
-	return amount
-}
-
 func waitPodGone(ctx *context, podName, namespace string) error {
 	var additionalError error
 	err := wait.Poll(100*time.Millisecond, oneMinute, func() (bool, error) {