diff --git a/core/src/main/java/com/alibaba/nacos/core/distributed/ProtocolManager.java b/core/src/main/java/com/alibaba/nacos/core/distributed/ProtocolManager.java
index 3559cb1fdca..de38b102dc0 100644
--- a/core/src/main/java/com/alibaba/nacos/core/distributed/ProtocolManager.java
+++ b/core/src/main/java/com/alibaba/nacos/core/distributed/ProtocolManager.java
@@ -28,6 +28,7 @@
 import com.alibaba.nacos.core.cluster.ServerMemberManager;
 import com.alibaba.nacos.core.utils.ClassUtils;
 import com.alibaba.nacos.sys.utils.ApplicationUtils;
+import org.springframework.beans.BeansException;
 import org.springframework.beans.factory.DisposableBean;
 import org.springframework.stereotype.Component;
 
@@ -52,9 +53,13 @@ public class ProtocolManager extends MemberChangeListener implements DisposableB
     
     private final ServerMemberManager memberManager;
     
-    private boolean apInit = false;
+    private volatile boolean apInit = false;
     
-    private boolean cpInit = false;
+    private volatile boolean cpInit = false;
+    
+    private final Object cpLock = new Object();
+    
+    private final Object apLock = new Object();
     
     private Set<Member> oldMembers;
     
@@ -80,20 +85,24 @@ public static Set<String> toCPMembersInfo(Collection<Member> members) {
     }
     
     public CPProtocol getCpProtocol() {
-        synchronized (this) {
-            if (!cpInit) {
-                initCPProtocol();
-                cpInit = true;
+        if (!cpInit){
+            synchronized (cpLock) {
+                if (!cpInit) {
+                    initCPProtocol();
+                    cpInit = true;
+                }
             }
         }
         return cpProtocol;
     }
     
     public APProtocol getApProtocol() {
-        synchronized (this) {
-            if (!apInit) {
-                initAPProtocol();
-                apInit = true;
+        if (!apInit) {
+            synchronized (apLock) {
+                if (!apInit) {
+                    initAPProtocol();
+                    apInit = true;
+                }
             }
         }
         return apProtocol;
diff --git a/sys/src/main/java/com/alibaba/nacos/sys/utils/ApplicationUtils.java b/sys/src/main/java/com/alibaba/nacos/sys/utils/ApplicationUtils.java
index 86ea24ca7c3..189803a1a73 100644
--- a/sys/src/main/java/com/alibaba/nacos/sys/utils/ApplicationUtils.java
+++ b/sys/src/main/java/com/alibaba/nacos/sys/utils/ApplicationUtils.java
@@ -151,11 +151,8 @@ public static <T> T getBean(Class<T> requiredType) throws BeansException {
     }
     
     public static <T> void getBeanIfExist(Class<T> requiredType, Consumer<T> consumer) throws BeansException {
-        try {
-            T bean = applicationContext.getBean(requiredType);
-            consumer.accept(bean);
-        } catch (NoSuchBeanDefinitionException ignore) {
-        }
+        T bean = applicationContext.getBean(requiredType);
+        consumer.accept(bean);
     }
     
     public static <T> T getBean(Class<T> requiredType, Object... args) throws BeansException {