Exemple #1
0
        private async Task PruneZombieConnectionsAsync(IRealm realm)
        {
            var clientIds = realm.GetClientIds();

            var now          = DateTime.UtcNow;
            var aliveTimeout = TimeSpan.FromSeconds(60);

            var count = 0;

            foreach (var clientId in clientIds)
            {
                var client = realm.GetClient(clientId);
                var timeSinceLastHeartbeat = now - client.GetLastHeartbeat();

                if (timeSinceLastHeartbeat < aliveTimeout)
                {
                    continue;
                }

                var socket = client.GetSocket();

                try
                {
                    await socket?.CloseAsync($"Zombie connection, time since last heartbeat: {timeSinceLastHeartbeat.TotalSeconds}s");
                }
                finally
                {
                    realm.ClearMessageQueue(clientId);
                    realm.RemoveClientById(clientId);

                    socket?.Dispose();
                }

                count++;
            }

            _logger.LogInformation($"Pruned zombie connections for {count} peers.");
        }