init metadata client
diff --git a/dubbo-admin-backend/src/main/java/org/apache/dubbo/admin/config/ConfigCenter.java b/dubbo-admin-backend/src/main/java/org/apache/dubbo/admin/config/ConfigCenter.java
index 4c03ddf..4417653 100644
--- a/dubbo-admin-backend/src/main/java/org/apache/dubbo/admin/config/ConfigCenter.java
+++ b/dubbo-admin-backend/src/main/java/org/apache/dubbo/admin/config/ConfigCenter.java
@@ -85,6 +85,8 @@
         MetaDataCollector metaDataCollector = null;
         if (metadataUrl != null) {
             metaDataCollector = ExtensionLoader.getExtensionLoader(MetaDataCollector.class).getExtension(metadataUrl.getProtocol());
+            metaDataCollector.setUrl(metadataUrl);
+            metaDataCollector.init();
         }
         return metaDataCollector;
     }