//========== Background Methods ======================================================================================
private void HeartbeatCheck()
{
try { // Try catch needed because errors are otherwised silenced, somehow :-(
// Remove dead connections (Ping not received timely)
foreach (var kvp in LastSeenConnections.ToList())
{
if (kvp.Value < DateTime.Now.AddSeconds(-CleanZombieAfter))
{
var connectionId = kvp.Key;
Log.SignalR(LogTag.CleaningZombieConnection, new { connectionId });
CleanConnection(connectionId);
}
}
// Remove inactive members from "crowded" rooms
var chatState = ChatCtrl.GetState();
foreach (var roomKvp in chatState.Rooms)
{
if (roomKvp.Key.IsMonoLang() && roomKvp.Value.Count > BootAboveUserCount)
{
var mostInactiveUserKvp = roomKvp.Value.Aggregate((l, r) => l.Value.LastActive < r.Value.LastActive ? l : r);
if (mostInactiveUserKvp.Value.LastActive < DateTime.Now.AddMinutes(-BootOutOfRoomAfter))
{
Log.SignalR(LogTag.KickSlackerOutOfRoom, new { roomId = roomKvp.Key, userId = mostInactiveUserKvp.Key });
// Get the list of connections that have to leave the room
var userConnectionIds = UsersConnections.GetFromKey(mostInactiveUserKvp.Key)
.Where(connId => RoomsConnections.HasConnection(roomKvp.Key, connId))
.Select(connId => connId.ToString()).ToList();
Clients.Clients(userConnectionIds).LeaveRoom(roomKvp.Key);
}
}
}
// Check for inactive members
foreach (var chatUser in chatState.AllUsers.Values)
{
if (chatUser.LastActivity < DateTime.Now.AddMinutes(-UserIdleAfter))
{
ChatCtrl.SetIdleStatus(chatUser.Id);
Log.SignalR(LogTag.SetChatUserIdle, new { userId = chatUser.Id });
}
}
Log.SignalR(LogTag.HubHeartbeatCheckCompleted);
} catch (Exception e) {
Log.Error(LogTag.HeartbeatCheckError, e);
}
}
private void PublishHealthReport()
{
var chatState = ChatCtrl.GetState();
var report = new {
HubAliveConnections = _heartBeat.GetConnections().Count,
UsersConnectionsCount = UsersConnections.Count,
UsersConnectionsValuesCount = UsersConnections.Values.Count,
RoomsConnectionsCount = RoomsConnections.Count,
RoomsConnectionsValuesCount = RoomsConnections.ValuesCount,
ChatAllUsersCount = chatState.AllUsers.Count,
ChatRoomsCounts = chatState.Rooms.Count,
ChatRoomsUsersCounts = chatState.Rooms.Values.Sum(list => list.Count),
ManagedQueuesCount, UnackedManagedQueuesCount,
FullDetails = new { HubAliveConnections = _heartBeat.GetConnections().Select(conn => new { conn.ConnectionId, conn.IsAlive, conn.IsTimedOut }), UsersConnections = UsersConnections.All, RoomsConnections = RoomsConnections.All }
};
Log.SignalR(LogTag.ChatHubHealthReport, new { report });
}