add memcache config & open shut api

@@ -69,7 +69,12 @@ app.use(session({
 
     store: new MemcachedStore({
         hosts: config.memcache.session,
-        prefix: 'yohobuy_session:'
+        prefix: 'yohobuy_session:',
+        poolSize: 25,
+        reconnect: 5000,
+        timeout: 1000,
+        retries: 1,
+        retry: 3000
     })
 }));
 

@@ -87,12 +87,16 @@ if (isProduction) {
             master: ['memcache1.yohoops.org:12111', 'memcache2.yohoops.org:12111', 'memcache3.yohoops.org:12111'],
             slave: ['memcache1.yohoops.org:12112', 'memcache2.yohoops.org:12112', 'memcache3.yohoops.org:12112'],
             session: ['memcache1.yohoops.org:12111', 'memcache2.yohoops.org:12111', 'memcache3.yohoops.org:12111'],
-            timeout: 3000
+            poolSize: 25,
+            reconnect: 5000,
+            timeout: 300,
+            retries: 1,
+            retry: 3000
         },
         useOneapm: true,
         useCache: true,
         interfaceShunt: {
-            open: false,
+            open: true,
             url: 'http://123.206.2.55/strategy'
         }
     });