From df2d1fb4da603a45cb09b4be57b0014dfca51e65 Mon Sep 17 00:00:00 2001
From: Mikulas Tomanka <mklstmnk@gmail.com>
Date: Tue, 19 May 2020 09:45:31 +0200
Subject: [PATCH] use sql main dom lock when linux and ignore config setting

---
 .../Extensions/UmbracoCoreServiceCollectionExtensions.cs      | 4 +++-
 src/Umbraco.Web/UmbracoApplication.cs                         | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/Umbraco.Web.Common/Extensions/UmbracoCoreServiceCollectionExtensions.cs b/src/Umbraco.Web.Common/Extensions/UmbracoCoreServiceCollectionExtensions.cs
index 0fe784f421..b0466b4e49 100644
--- a/src/Umbraco.Web.Common/Extensions/UmbracoCoreServiceCollectionExtensions.cs
+++ b/src/Umbraco.Web.Common/Extensions/UmbracoCoreServiceCollectionExtensions.cs
@@ -4,6 +4,7 @@ using System.Collections.Generic;
 using System.Data.Common;
 using System.IO;
 using System.Reflection;
+using System.Runtime.InteropServices;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Http;
 using Microsoft.Extensions.Configuration;
@@ -175,7 +176,8 @@ namespace Umbraco.Web.Common.Extensions
             var globalSettings = configs.Global();
             var connStrings = configs.ConnectionStrings();
             var appSettingMainDomLock = globalSettings.MainDomLock;
-            var mainDomLock = appSettingMainDomLock == "SqlMainDomLock"
+            var isLinux = RuntimeInformation.IsOSPlatform(OSPlatform.Linux);
+            var mainDomLock = appSettingMainDomLock == "SqlMainDomLock" || isLinux == true
                 ? (IMainDomLock)new SqlMainDomLock(logger, globalSettings, connStrings, dbProviderFactoryCreator)
                 : new MainDomSemaphoreLock(logger, hostingEnvironment);
 
diff --git a/src/Umbraco.Web/UmbracoApplication.cs b/src/Umbraco.Web/UmbracoApplication.cs
index 7679da2e2e..d95eb2c6e8 100644
--- a/src/Umbraco.Web/UmbracoApplication.cs
+++ b/src/Umbraco.Web/UmbracoApplication.cs
@@ -1,6 +1,7 @@
 using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
+using System.Runtime.InteropServices;
 using System.Threading;
 using System.Web;
 using Umbraco.Core;
@@ -31,7 +32,8 @@ namespace Umbraco.Web
 
             // Determine if we should use the sql main dom or the default
             var appSettingMainDomLock = globalSettings.MainDomLock;
-            var mainDomLock = appSettingMainDomLock == "SqlMainDomLock"
+            var isLinux = RuntimeInformation.IsOSPlatform(OSPlatform.Linux);
+            var mainDomLock = appSettingMainDomLock == "SqlMainDomLock" || isLinux == true
                 ? (IMainDomLock)new SqlMainDomLock(logger, globalSettings, connectionStrings, dbProviderFactoryCreator)
                 : new MainDomSemaphoreLock(logger, hostingEnvironment);