From 2cc2be3d9cda293dcedfc85723f4762075b551d9 Mon Sep 17 00:00:00 2001
From: Shane Kilkelly <shane.kilkelly@overleaf.com>
Date: Fri, 11 Oct 2019 10:01:21 +0100
Subject: [PATCH] send messages to clients with concurrency of 2

---
 services/real-time/app/coffee/WebsocketLoadBalancer.coffee | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/services/real-time/app/coffee/WebsocketLoadBalancer.coffee b/services/real-time/app/coffee/WebsocketLoadBalancer.coffee
index ba69d79beb..12b7ef812b 100644
--- a/services/real-time/app/coffee/WebsocketLoadBalancer.coffee
+++ b/services/real-time/app/coffee/WebsocketLoadBalancer.coffee
@@ -91,7 +91,8 @@ module.exports = WebsocketLoadBalancer =
 				}, "distributing event to clients"
 				seen = {}
 				# Send the messages to clients async, don't wait for them all to finish
-				Async.eachSeries clientList
+				Async.eachLimit clientList
+					, 2
 					, (client, cb) ->
 						Utils.getClientAttributes client, ['is_restricted_user'], (err, {is_restricted_user}) ->
 							return cb(err) if err?