diff --git a/client/src/main/java/com/alibaba/nacos/client/naming/core/HostReactor.java b/client/src/main/java/com/alibaba/nacos/client/naming/core/HostReactor.java
index e43dd6763..ddf194c36 100644
--- a/client/src/main/java/com/alibaba/nacos/client/naming/core/HostReactor.java
+++ b/client/src/main/java/com/alibaba/nacos/client/naming/core/HostReactor.java
@@ -100,7 +100,7 @@ public class HostReactor {
     public ServiceInfo processServiceJSON(String json) {
         ServiceInfo serviceInfo = JSON.parseObject(json, ServiceInfo.class);
         ServiceInfo oldService = serviceInfoMap.get(serviceInfo.getKey());
-        if (serviceInfo.getHosts() == null || !serviceInfo.validate()) {
+        if (serviceInfo.getHosts() == null || serviceInfo.getHosts().isEmpty() || !serviceInfo.validate()) {
             //empty or error push, just ignore
             return oldService;
         }
diff --git a/naming/src/main/java/com/alibaba/nacos/naming/controllers/InstanceController.java b/naming/src/main/java/com/alibaba/nacos/naming/controllers/InstanceController.java
index 24a85f7f0..d4c75026f 100644
--- a/naming/src/main/java/com/alibaba/nacos/naming/controllers/InstanceController.java
+++ b/naming/src/main/java/com/alibaba/nacos/naming/controllers/InstanceController.java
@@ -373,7 +373,11 @@ public class InstanceController {
         Service service = serviceManager.getService(namespaceId, serviceName);
 
         if (service == null) {
-            throw new NacosException(NacosException.NOT_FOUND, "service not found: " + serviceName);
+            if (Loggers.DEBUG_LOG.isDebugEnabled()) {
+                Loggers.DEBUG_LOG.debug("no instance to serve for service: " + serviceName);
+            }
+            result.put("hosts", new JSONArray());
+            return result;
         }
 
         checkIfDisabled(service);