diff --git a/fizz-core/src/main/java/we/plugin/auth/GatewayGroupService.java b/fizz-core/src/main/java/we/plugin/auth/GatewayGroupService.java
index f3a0fb6..751bf7c 100644
--- a/fizz-core/src/main/java/we/plugin/auth/GatewayGroupService.java
+++ b/fizz-core/src/main/java/we/plugin/auth/GatewayGroupService.java
@@ -24,6 +24,7 @@ import org.springframework.data.redis.core.ReactiveStringRedisTemplate;
 import org.springframework.stereotype.Service;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
+import we.FizzAppContext;
 import we.config.AggregateRedisConfig;
 import we.flume.clients.log4j2appender.LogService;
 import we.util.Consts;
@@ -165,8 +166,7 @@ public class GatewayGroupService {
         return Mono.just(ReactorUtils.EMPTY_THROWABLE);
     }
 
-    private void updateGatewayGroupMap(GatewayGroup gg, Map<String, GatewayGroup> gatewayGroupMap,
-                                       Set<String> currentGatewayGroupSet) {
+    private void updateGatewayGroupMap(GatewayGroup gg, Map<String, GatewayGroup> gatewayGroupMap, Set<String> currentGatewayGroupSet) {
         if (gg.isDeleted == GatewayGroup.DELETED) {
             GatewayGroup r = gatewayGroupMap.remove(gg.group);
             log.info("remove " + r);
@@ -182,8 +182,7 @@ public class GatewayGroupService {
         updateCurrentGatewayGroupSet(currentGatewayGroupSet, gatewayGroupMap);
     }
 
-    private void updateCurrentGatewayGroupSet(Set<String> currentGatewayGroupSet, Map<String,
-            GatewayGroup> gatewayGroupMap) {
+    private void updateCurrentGatewayGroupSet(Set<String> currentGatewayGroupSet, Map<String, GatewayGroup> gatewayGroupMap) {
         Set<String> ips = NetworkUtils.getServerIps();
         String applicationName = environment.getProperty("spring.application.name");
         currentGatewayGroupSet.clear();
@@ -199,6 +198,7 @@ public class GatewayGroupService {
         if (currentGatewayGroupSet.isEmpty()) {
             currentGatewayGroupSet.add(GatewayGroup.DEFAULT);
         }
+        // publish event
     }
 
     public boolean currentGatewayGroupIn(Set<String> gatewayGroups) {
diff --git a/fizz-core/src/main/java/we/plugin/stat/StatPluginFilter.java b/fizz-core/src/main/java/we/plugin/stat/StatPluginFilter.java
index 6384a9d..dbbdcfb 100644
--- a/fizz-core/src/main/java/we/plugin/stat/StatPluginFilter.java
+++ b/fizz-core/src/main/java/we/plugin/stat/StatPluginFilter.java
@@ -71,6 +71,7 @@ public class StatPluginFilter extends PluginFilter {
     @Resource
     private GatewayGroupService gatewayGroupService;
 
+    /*
     private String currentGatewayGroups;
 
     @PostConstruct
@@ -84,6 +85,7 @@ public class StatPluginFilter extends PluginFilter {
             }
         }
     }
+    */
 
     @Override
     public Mono<Void> doFilter(ServerWebExchange exchange, Map<String, Object> config, String fixedConfig) {
@@ -92,7 +94,7 @@ public class StatPluginFilter extends PluginFilter {
             StringBuilder b = ThreadContext.getStringBuilder();
             b.append(Consts.S.LEFT_BRACE);
             b.append(ip);              toJsonStringValue(b, WebUtils.getOriginIp(exchange));               b.append(Consts.S.COMMA);
-            b.append(gatewayGroup);    toJsonStringValue(b, currentGatewayGroups);                         b.append(Consts.S.COMMA);
+            b.append(gatewayGroup);    toJsonStringValue(b, currentGatewayGroups());                       b.append(Consts.S.COMMA);
             b.append(service);         toJsonStringValue(b, WebUtils.getClientService(exchange));          b.append(Consts.S.COMMA);
 
             String appId = WebUtils.getAppId(exchange);
@@ -115,6 +117,23 @@ public class StatPluginFilter extends PluginFilter {
         return WebUtils.transmitSuccessFilterResultAndEmptyMono(exchange, STAT_PLUGIN_FILTER, null);
     }
 
+    private String currentGatewayGroups() {
+        int sz = gatewayGroupService.currentGatewayGroupSet.size();
+        if (sz == 1) {
+            return gatewayGroupService.currentGatewayGroupSet.iterator().next();
+        }
+        StringBuilder b = ThreadContext.getStringBuilder();
+        byte i = 0;
+        for (String g : gatewayGroupService.currentGatewayGroupSet) {
+            b.append(g);
+            i++;
+            if (i < sz) {
+                b.append(Consts.S.COMMA);
+            }
+        }
+        return b.toString();
+    }
+
     private static void toJsonStringValue(StringBuilder b, String value) {
         b.append(Consts.S.DOUBLE_QUOTE).append(value).append(Consts.S.DOUBLE_QUOTE);
     }