diff --git a/internal/proxy/rate_limit_interceptor.go b/internal/proxy/rate_limit_interceptor.go
index 49e3c11b80..01030fb8f1 100644
--- a/internal/proxy/rate_limit_interceptor.go
+++ b/internal/proxy/rate_limit_interceptor.go
@@ -41,7 +41,7 @@ func RateLimitInterceptor(limiter types.Limiter) grpc.UnaryServerInterceptor {
 	return func(ctx context.Context, req any, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
 		dbID, collectionIDToPartIDs, rt, n, err := getRequestInfo(ctx, req)
 		if err != nil {
-			log.RatedWarn(10, "failed to get request info", zap.Error(err))
+			log.Warn("failed to get request info", zap.Error(err))
 			return handler(ctx, req)
 		}
 
@@ -205,7 +205,7 @@ func getRequestInfo(ctx context.Context, req interface{}) (int64, map[int64][]in
 		if req == nil {
 			return util.InvalidDBID, map[int64][]int64{}, 0, 0, fmt.Errorf("null request")
 		}
-		return util.InvalidDBID, map[int64][]int64{}, 0, 0, fmt.Errorf("unsupported request type %T", req)
+		return util.InvalidDBID, map[int64][]int64{}, 0, 0, nil
 	}
 }
 
diff --git a/internal/proxy/rate_limit_interceptor_test.go b/internal/proxy/rate_limit_interceptor_test.go
index 53db9ede78..3f9fbac843 100644
--- a/internal/proxy/rate_limit_interceptor_test.go
+++ b/internal/proxy/rate_limit_interceptor_test.go
@@ -261,7 +261,7 @@ func TestRateLimitInterceptor(t *testing.T) {
 		assert.Error(t, err)
 
 		_, _, _, _, err = getRequestInfo(context.Background(), &milvuspb.CalcDistanceRequest{})
-		assert.Error(t, err)
+		assert.NoError(t, err)
 	})
 
 	t.Run("test getFailedResponse", func(t *testing.T) {