Add the ability to change the SQL Write Lock TimeOut (#9744)

* Add the ability to change the SQL Write Lock TimeOut

* Needed to add a default setting to to the settings for tests

src/Umbraco.Core/Configuration/GlobalSettings.cs

@@ -391,5 +391,28 @@ namespace Umbraco.Core.Configuration
                 }
             }
         }
+
+
+        /// <summary>
+        /// An int value representing the time in milliseconds to lock the database for a write operation
+        /// </summary>
+        /// <remarks>
+        /// The default value is 1800 milliseconds
+        /// </remarks>
+        /// <value>The timeout in milliseconds.</value>
+        public int SqlWriteLockTimeOut
+        {
+            get
+            {
+                try
+                {
+                    return int.Parse(ConfigurationManager.AppSettings[Constants.AppSettings.SqlWriteLockTimeOut]);
+                }
+                catch
+                {
+                    return 1800;
+                }
+            }
+        }
     }
 }

src/Umbraco.Core/Configuration/IGlobalSettings.cs

@@ -72,5 +72,10 @@
         /// Gets the location of temporary files.
         /// </summary>
         string LocalTempPath { get; }
+
+        /// <summary>
+        /// Gets the write lock timeout.
+        /// </summary>
+        int SqlWriteLockTimeOut { get; }
     }
 }