From 82004aab73e5db6a4b0d3c6e68de7bec9dc6b749 Mon Sep 17 00:00:00 2001
From: Calvin Montgomery <calzoneman@gmail.com>
Date: Mon, 14 Aug 2017 18:23:07 -0700
Subject: [PATCH] ioserver: change on disconnect to once to avoid
 double-counting

---
 src/io/ioserver.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/io/ioserver.js b/src/io/ioserver.js
index ae159cc7..18383b83 100644
--- a/src/io/ioserver.js
+++ b/src/io/ioserver.js
@@ -293,7 +293,7 @@ function emitMetrics(sock) {
             }
         });
 
-        sock.on('disconnect', () => {
+        sock.once('disconnect', () => {
             try {
                 promSocketCount.dec({ transport: transportName });
                 promSocketDisconnect.inc(1, new Date());