update service text in wizard

MediaBrowser.Common.Implementations/Updates/InstallationManager.cs

@@ -168,7 +168,7 @@ namespace MediaBrowser.Common.Implementations.Updates
             {
                 // Let dev users get results more often for testing purposes
                 var cacheLength = _config.CommonConfiguration.SystemUpdateLevel == PackageVersionClass.Dev
-                                      ? TimeSpan.FromHours(1)
+                                      ? TimeSpan.FromMinutes(15)
                                       : TimeSpan.FromHours(12);
 
                 if ((DateTime.UtcNow - _lastPackageListResult.Item2) < cacheLength)

MediaBrowser.Server.Implementations/Session/SessionManager.cs

@@ -44,11 +44,13 @@ namespace MediaBrowser.Server.Implementations.Session
         /// <value>The configuration manager.</value>
         private readonly IServerConfigurationManager _configurationManager;
 
+        private object _sessionLock = new object();
+
         /// <summary>
         /// The _active connections
         /// </summary>
-        private readonly ConcurrentDictionary<string, SessionInfo> _activeConnections =
+        private readonly Dictionary<string, SessionInfo> _activeConnections =
-            new ConcurrentDictionary<string, SessionInfo>(StringComparer.OrdinalIgnoreCase);
+            new Dictionary<string, SessionInfo>(StringComparer.OrdinalIgnoreCase);
 
         /// <summary>
         /// Occurs when [playback start].
@@ -84,7 +86,7 @@ namespace MediaBrowser.Server.Implementations.Session
         /// <value>All connections.</value>
         public IEnumerable<SessionInfo> Sessions
         {
-            get { return _activeConnections.Values.OrderByDescending(c => c.LastActivityDate).ToList(); }
+            get { return _activeConnections.Values.ToList().OrderByDescending(c => c.LastActivityDate); }
         }
 
         /// <summary>
@@ -193,19 +195,29 @@ namespace MediaBrowser.Server.Implementations.Session
         {
             var key = clientType + deviceId + appVersion;
 
-            var connection = _activeConnections.GetOrAdd(key, keyName => new SessionInfo
+            lock (_sessionLock)
+            {
+                SessionInfo connection;
+
+                if (!_activeConnections.TryGetValue(key, out connection))
+                {
+                    connection = new SessionInfo
                         {
                             Client = clientType,
                             DeviceId = deviceId,
                             ApplicationVersion = appVersion,
                             Id = Guid.NewGuid()
-            });
+                        };
+
+                    _activeConnections[key] = connection;
+                }
 
                 connection.DeviceName = deviceName;
                 connection.User = user;
 
                 return connection;
             }
+        }
 
         /// <summary>
         /// Used to report that playback has started for an item