database: do no reconnect in query

src/database.js

@@ -66,6 +66,7 @@ function initialize(callback) {
 function uninitialize(callback) {
     if (gConnectionPool) {
         gConnectionPool.end(callback);
+        gDefaultConnection = null;
         gConnectionPool = null;
     } else {
         callback(null);
@@ -75,6 +76,8 @@ function uninitialize(callback) {
 function reconnect(callback) {
     callback = callback ? once(callback) : function () {};
 
+    debug('reconnect: connecting to database');
+
     gConnectionPool.getConnection(function (error, connection) {
         if (error) {
             debug('reconnect: unable to reestablish connection to database. Try again in 10 seconds.', error.message);
@@ -88,6 +91,8 @@ function reconnect(callback) {
 
             debug('reconnect: unhandled mysql connection error. Will reconnect in 10 seconds', error);
 
+            gDefaultConnection = null;
+
             // This is most likely an issue an can cause double callbacks from reconnect()
             setTimeout(reconnect.bind(null, callback), 10000);
         });
@@ -153,15 +158,6 @@ function query() {
 
     if (gDefaultConnection === null) return callback(new BoxError(BoxError.DATABASE_ERROR, 'No connection to database'));
 
-    args[args.length -1 ] = function (error, result) {
-        if (error && error.fatal) {
-            gDefaultConnection = null;
-            setTimeout(reconnect, 1000);
-        }
-
-        callback(error, result);
-    };
-
     gDefaultConnection.query.apply(gDefaultConnection, args);
 }