diff --git a/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/authority.js b/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/authority.js
index 96ef1239..fb7b789d 100644
--- a/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/authority.js
+++ b/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/authority.js
@@ -55,7 +55,7 @@ angular.module('sentinelDashboardApp').controller('AuthorityRuleController', ['$
         var authorityRuleDialog;
 
         $scope.editRule = function (rule) {
-            $scope.currentRule = rule;
+            $scope.currentRule = angular.copy(rule);
             $scope.authorityRuleDialog = {
                 title: '编辑授权规则',
                 type: 'edit',
diff --git a/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/degrade.js b/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/degrade.js
index 14423f65..45773c66 100755
--- a/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/degrade.js
+++ b/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/degrade.js
@@ -45,7 +45,7 @@ app.controller('DegradeCtl', ['$scope', '$stateParams', 'DegradeService', 'ngDia
 
     var degradeRuleDialog;
     $scope.editRule = function (rule) {
-      $scope.currentRule = rule;
+      $scope.currentRule = angular.copy(rule);
       $scope.degradeRuleDialog = {
         title: '编辑降级规则',
         type: 'edit',
diff --git a/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/flow_v1.js b/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/flow_v1.js
index d587a13d..643ff12d 100755
--- a/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/flow_v1.js
+++ b/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/flow_v1.js
@@ -61,7 +61,7 @@ app.controller('FlowControllerV1', ['$scope', '$stateParams', 'FlowServiceV1', '
 
     var flowRuleDialog;
     $scope.editRule = function (rule) {
-      $scope.currentRule = rule;
+      $scope.currentRule = angular.copy(rule);
       $scope.flowRuleDialog = {
         title: '编辑流控规则',
         type: 'edit',
diff --git a/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/flow_v2.js b/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/flow_v2.js
index 4e11c244..8a98c8d5 100755
--- a/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/flow_v2.js
+++ b/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/flow_v2.js
@@ -61,7 +61,7 @@ app.controller('FlowControllerV2', ['$scope', '$stateParams', 'FlowServiceV2', '
 
     var flowRuleDialog;
     $scope.editRule = function (rule) {
-      $scope.currentRule = rule;
+      $scope.currentRule = angular.copy(rule);
       $scope.flowRuleDialog = {
         title: '编辑流控规则',
         type: 'edit',
@@ -88,7 +88,8 @@ app.controller('FlowControllerV2', ['$scope', '$stateParams', 'FlowServiceV2', '
         limitApp: 'default',
         clusterMode: false,
         clusterConfig: {
-          thresholdType: 0
+          thresholdType: 0,
+          fallbackToLocalWhenFail: true
         }
       };
       $scope.flowRuleDialog = {
diff --git a/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/param_flow.js b/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/param_flow.js
index 4b6f799e..65cf157e 100644
--- a/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/param_flow.js
+++ b/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/param_flow.js
@@ -129,7 +129,7 @@ angular.module('sentinelDashboardApp').controller('ParamFlowController', ['$scop
     var paramFlowRuleDialog;
 
     $scope.editRule = function (rule) {
-      $scope.currentRule = rule;
+      $scope.currentRule = angular.copy(rule);
       $scope.paramFlowRuleDialog = {
         title: '编辑热点规则',
         type: 'edit',
diff --git a/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/system.js b/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/system.js
index c08d418f..8e7ed655 100755
--- a/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/system.js
+++ b/sentinel-dashboard/src/main/webapp/resources/app/scripts/controllers/system.js
@@ -58,7 +58,7 @@ app.controller('SystemCtl', ['$scope', '$stateParams', 'SystemService', 'ngDialo
     $scope.getMachineRules = getMachineRules;
     var systemRuleDialog;
     $scope.editRule = function (rule) {
-      $scope.currentRule = rule;
+      $scope.currentRule = angular.copy(rule);
       $scope.systemRuleDialog = {
         title: '编辑系统保护规则',
         type: 'edit',
diff --git a/sentinel-dashboard/src/main/webapp/resources/app/views/dialog/flow-rule-dialog.html b/sentinel-dashboard/src/main/webapp/resources/app/views/dialog/flow-rule-dialog.html
index bd07ac36..b7dd29c5 100755
--- a/sentinel-dashboard/src/main/webapp/resources/app/views/dialog/flow-rule-dialog.html
+++ b/sentinel-dashboard/src/main/webapp/resources/app/views/dialog/flow-rule-dialog.html
@@ -53,7 +53,9 @@
           <div class="form-group">
             <label class="col-sm-2 control-label">是否集群</label>
             <div class="col-sm-2">
+              <label class="checkbox-inline">
                 <input type="checkbox" name="clusterMode" ng-model="currentRule.clusterMode">
+              </label>
             </div>
             <div ng-if="currentRule.clusterMode">
               <label class="col-sm-3 control-label">集群阈值模式</label>
@@ -66,6 +68,16 @@
             </div>
           </div>
 
+          <div class="form-group" ng-if="currentRule.clusterMode">
+            <label class="col-sm-2 control-label">失败退化</label>
+            <div class="col-sm-8">
+              <label class="checkbox-inline">
+                <input type="checkbox" name="clusterMode" ng-model="currentRule.clusterConfig.fallbackToLocalWhenFail">
+                <i class="glyphicon glyphicon-info-sign"></i>如果集群限流失败是否退化到单机限流
+              </label>
+            </div>
+          </div>
+
           <div ng-if="!flowRuleDialog.showAdvanceButton">
             <div class="form-group">
               <label class="col-sm-2 control-label" title="调用关系流控模式">流控模式</label>
@@ -133,4 +145,4 @@
       </div>
     </div>
   </div>
-</div>
+</div>
\ No newline at end of file
diff --git a/sentinel-dashboard/src/main/webapp/resources/app/views/metric.html b/sentinel-dashboard/src/main/webapp/resources/app/views/metric.html
index ed08eb74..a77b895f 100755
--- a/sentinel-dashboard/src/main/webapp/resources/app/views/metric.html
+++ b/sentinel-dashboard/src/main/webapp/resources/app/views/metric.html
@@ -51,9 +51,9 @@
                           <thead>
                             <tr style="font-size: 13px;text-align:center;font-weight: bold;">
                               <td style="word-wrap:break-word;word-break:break-all;">时间</td>
-                              <td style="word-wrap:break-word;word-break:break-all;">p_qps</td>
-                              <td style="word-wrap:break-word;word-break:break-all;">b_qps</td>
-                              <td style="word-wrap:break-word;word-break:break-all;">rt(ms)</td>
+                              <td style="word-wrap:break-word;word-break:break-all;" title="passQps: 通过的qps">p_qps</td>
+                              <td style="word-wrap:break-word;word-break:break-all;" title="blockQps: 拦截的qps">b_qps</td>
+                              <td style="word-wrap:break-word;word-break:break-all;" title="responseTime: 响应时间(毫秒)">rt(ms)</td>
                             </tr>
                           </thead>
                           <!-- thead -->