parallel startup

app.js

@@ -180,21 +180,26 @@ function start() {
 	});
 
 	async.waterfall([
-		async.apply(db.init),
-		async.apply(db.checkCompatibility),
-		function (next) {
-			require('./src/meta').configs.init(next);
-		},
+		async.apply(db.init),		
 		function (next) {
-			if (nconf.get('dep-check') === undefined || nconf.get('dep-check') !== false) {
-				require('./src/meta').dependencies.check(next);
-			} else {
-				winston.warn('[init] Dependency checking skipped!');
-				setImmediate(next);
-			}
-		},
-		function (next) {
-			require('./src/upgrade').check(next);
+			var meta = require('./src/meta');
+			async.parallel([
+				async.apply(db.checkCompatibility),
+				async.apply(meta.configs.init),	
+				function (next) {
+					if (nconf.get('dep-check') === undefined || nconf.get('dep-check') !== false) {
+						meta.dependencies.check(next);
+					} else {
+						winston.warn('[init] Dependency checking skipped!');
+						setImmediate(next);
+					}
+				},
+				function (next) {
+					require('./src/upgrade').check(next);	
+				}				
+			], function (err) {
+				next(err);
+			});
 		},
 		function (next) {
 			var webserver = require('./src/webserver');

src/database/mongo.js

@@ -167,12 +167,12 @@
 
 	module.checkCompatibility = function (callback) {
 		var mongoPkg = require.main.require('./node_modules/mongodb/package.json');
-		var err = semver.lt(mongoPkg.version, '2.0.0') ? new Error('The `mongodb` package is out-of-date, please run `./nodebb setup` again.') : null;
-
-		if (err) {
-			err.stacktrace = false;
+		
+		if (semver.lt(mongoPkg.version, '2.0.0')) {
+			return callback(new Error('The `mongodb` package is out-of-date, please run `./nodebb setup` again.'));
 		}
-		callback(err);
+		
+		callback();
 	};
 
 	module.info = function (db, callback) {

src/database/redis.js

@@ -118,11 +118,10 @@
 			}
 
 			if (semver.lt(info.redis_version, '2.8.9')) {
-				err = new Error('Your Redis version is not new enough to support NodeBB, please upgrade Redis to v2.8.9 or higher.');
-				err.stacktrace = false;
+				return callback(new Error('Your Redis version is not new enough to support NodeBB, please upgrade Redis to v2.8.9 or higher.'));
 			}
 
-			callback(err);
+			callback();
 		});
 	};