From 744f8880ff59c8927329d7dc9999b2745fa6b7a1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zolt=C3=A1n=20Leh=C3=B3czky?= <zoltan.lehoczky@lombiq.com>
Date: Fri, 31 May 2019 15:49:53 +0200
Subject: [PATCH] Using Single fcnMode in Release builds (Lombiq Technologies:
 ORCH-207), fixes #6942

---
 src/Orchard.Web/Web.Release.config | 25 +++++++++++++++++--------
 1 file changed, 17 insertions(+), 8 deletions(-)

diff --git a/src/Orchard.Web/Web.Release.config b/src/Orchard.Web/Web.Release.config
index 780436030..767f06cbd 100644
--- a/src/Orchard.Web/Web.Release.config
+++ b/src/Orchard.Web/Web.Release.config
@@ -1,14 +1,23 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- For more information on using web.config transformation visit http://go.microsoft.com/fwlink/?LinkId=125889 -->
 <configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
-	<system.transactions>
-		<defaultSettings xdt:Transform="RemoveAttributes(timeout)" />
-	</system.transactions>
-	<system.web>
-		<compilation xdt:Transform="RemoveAttributes(debug)" />
-		<customErrors mode="RemoteOnly" xdt:Transform="SetAttributes(mode)" />
-		<machineKey validationKey="AutoGenerate" decryptionKey="AutoGenerate" xdt:Transform="SetAttributes(validationKey,decryptionKey)" />
-	</system.web>
+    <system.transactions>
+        <defaultSettings xdt:Transform="RemoveAttributes(timeout)" />
+    </system.transactions>
+    <system.web>
+        <compilation xdt:Transform="RemoveAttributes(debug)" />
+        <customErrors mode="RemoteOnly" xdt:Transform="SetAttributes(mode)" />
+        <machineKey validationKey="AutoGenerate" decryptionKey="AutoGenerate" xdt:Transform="SetAttributes(validationKey,decryptionKey)" />
+        <!--
+        Configures File Change Notifications to have a single monitor object unlike the default config which creates
+        one for each subdirectory. This is supposed to lower resources usage and work equally well unless the
+        application has too many folders (this may happen if you have a lot of tenants and Media folders for example).
+        "Disabled" can get rid of all file watching but may cause issues.
+        For more information see https://shazwazza.com/post/all-about-aspnet-file-change-notification-fcn/ and
+        https://github.com/OrchardCMS/Orchard/issues/6942.
+        -->
+        <httpRuntime fcnMode="Single" xdt:Transform="SetAttributes(fcnMode)" />
+    </system.web>
   
   <glimpse xdt:Transform="SetAttributes(defaultRuntimePolicy)" defaultRuntimePolicy="Off" />
 </configuration>
\ No newline at end of file