diff --git a/Dockerfile b/Dockerfile
index 770fa8e514..6ee4493b92 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,7 +15,6 @@
 # limitations under the License.
 #
 FROM golang:1.16 AS build-env
-LABEL maintainer="gxthrj@163.com"
 
 ARG ENABLE_PROXY=false
 
@@ -33,14 +32,15 @@ COPY . .
 RUN make build
 
 FROM centos:centos7
-LABEL maintainer="gxthrj@163.com"
 
 WORKDIR /ingress-apisix
-RUN yum -y install ca-certificates libc6-compat \
-    && update-ca-trust \
-    && echo "hosts: files dns" > /etc/nsswitch.conf
+RUN sed -i s/mirror.centos.org/vault.centos.org/g /etc/yum.repos.d/*.repo \
+    && sed -i s/^#.*baseurl=http/baseurl=http/g /etc/yum.repos.d/*.repo \
+    && sed -i s/^mirrorlist=http/#mirrorlist=http/g /etc/yum.repos.d/*.repo \
+    && yum -y install ca-certificates libc6-compat \
+    && update-ca-trust
 
 COPY --from=build-env /build/apisix-ingress-controller .
 COPY --from=build-env /usr/share/zoneinfo/Hongkong /etc/localtime
 
-ENTRYPOINT ["/ingress-apisix/apisix-ingress-controller", "ingress", "--config-path", "/ingress-apisix/conf/config.yaml"]
+ENTRYPOINT ["/ingress-apisix/apisix-ingress-controller", "ingress", "--config-path", "/ingress-apisix/conf/config.yaml"]
\ No newline at end of file
diff --git a/Makefile b/Makefile
index 05251b25d4..3502e42725 100644
--- a/Makefile
+++ b/Makefile
@@ -16,7 +16,7 @@
 #
 default: help
 
-VERSION ?= 1.4.0
+VERSION ?= 1.4.1-patch3
 RELEASE_SRC = apache-apisix-ingress-controller-${VERSION}-src
 LOCAL_REGISTRY="localhost:5000"
 IMAGE_TAG ?= dev
diff --git a/pkg/ingress/controller.go b/pkg/ingress/controller.go
index 0496a78f67..eb3dede64d 100644
--- a/pkg/ingress/controller.go
+++ b/pkg/ingress/controller.go
@@ -5,7 +5,7 @@
 // (the "License"); you may not use this file except in compliance with
 // the License.  You may obtain a copy of the License at
 //
-//     http://www.apache.org/licenses/LICENSE-2.0
+//	http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ -349,8 +349,8 @@ func (c *Controller) Run(stop chan struct{}) error {
 	}
 	cfg := leaderelection.LeaderElectionConfig{
 		Lock:          lock,
-		LeaseDuration: 15 * time.Second,
-		RenewDeadline: 5 * time.Second,
+		LeaseDuration: 60 * time.Second,
+		RenewDeadline: 20 * time.Second,
 		RetryPeriod:   2 * time.Second,
 		Callbacks: leaderelection.LeaderCallbacks{
 			OnStartedLeading: c.run,
@@ -447,11 +447,6 @@ func (c *Controller) run(ctx context.Context) {
 		ctx.Done()
 		return
 	}
-	// compare resources of k8s with objects of APISIX
-	if err = c.CompareResources(ctx); err != nil {
-		ctx.Done()
-		return
-	}
 
 	c.goAttach(func() {
 		c.checkClusterHealth(ctx, cancelFunc)
diff --git a/pkg/kube/init.go b/pkg/kube/init.go
index 20aa23016d..a48077d8ee 100644
--- a/pkg/kube/init.go
+++ b/pkg/kube/init.go
@@ -5,7 +5,7 @@
 // (the "License"); you may not use this file except in compliance with
 // the License.  You may obtain a copy of the License at
 //
-//     http://www.apache.org/licenses/LICENSE-2.0
+//	http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ -17,6 +17,7 @@ package kube
 import (
 	"k8s.io/client-go/informers"
 	"k8s.io/client-go/kubernetes"
+	"k8s.io/client-go/util/flowcontrol"
 	gatewayclientset "sigs.k8s.io/gateway-api/pkg/client/clientset/gateway/versioned"
 	gatewayexternalversions "sigs.k8s.io/gateway-api/pkg/client/informers/gateway/externalversions"
 
@@ -43,6 +44,9 @@ func NewKubeClient(cfg *config.Config) (*KubeClient, error) {
 	if err != nil {
 		return nil, err
 	}
+	restConfig.RateLimiter = flowcontrol.NewFakeAlwaysRateLimiter()
+	restConfig.QPS = 0
+	restConfig.Burst = 0
 	kubeClient, err := kubernetes.NewForConfig(restConfig)
 	if err != nil {
 		return nil, err