added toggler to disable toobusy if necessary

src/middleware/middleware.js

@@ -221,7 +221,7 @@ middleware.privateUploads = function(req, res, next) {
 };
 
 middleware.busyCheck = function(req, res, next) {
-	if (global.env === 'production' && toobusy()) {
+	if (global.env === 'production' && (!meta.config.hasOwnProperty('eventLoopCheckEnabled') || parseInt(meta.config.eventLoopCheckEnabled, 10) === 1) && toobusy()) {
 		res.type('text/html').sendFile(path.join(__dirname, '../../public/503.html'));
 	} else {
 		next();

src/views/admin/settings/advanced.tpl

@@ -50,6 +50,12 @@
 			point.
 		</p>
 		<form>
+			<div class="form-group">
+				<label class="mdl-switch mdl-js-switch mdl-js-ripple-effect" for="eventLoopCheckEnabled">
+					<input class="mdl-switch__input" id="eventLoopCheckEnabled" type="checkbox" data-field="eventLoopCheckEnabled" checked />
+					<span class="mdl-switch__label">Enable Traffic Management</span>
+				</label>
+			</div>
 			<div class="form-group">
 				<label for="eventLoopLagThreshold">Event Loop Lag Threshold (in milliseconds)</label>
 				<input class="form-control" id="eventLoopLagThreshold" type="number" data-field="eventLoopLagThreshold" placeholder="Default: 70" step="10" value="70" />