Merge branch 'hotfix/memcached-incr' into hotfix/submit

@@ -29,7 +29,7 @@ module.exports = (limiter, policy) => {
 
     const key = `pc:limiter:${limiter.remoteIp}`;
 
-    let isNew = false;
+    let isNew = true;
 
     res.on('render', function() {
         let route = req.route ? req.route.path : '';
@@ -53,9 +53,8 @@ module.exports = (limiter, policy) => {
 
     return cache.getAsync(key).then((result) => {
         logger.debug('qps limiter: ' + key + '@' + result + ' max: ' + MAX_QPS);
-
         if (result && _.isNumber(result)) {
-
+            isNew = false;
             if (result === -1) {
                 return Promise.resolve(true);
             }
@@ -72,7 +71,6 @@ module.exports = (limiter, policy) => {
             }
         } else {
             cache.setAsync(key, 1, 60);  // 设置key，1m失效
-            isNew = true;
             return Promise.resolve(true);
         }
     });