public RaftOptions()
{
Election = new Range()
{
FromMilliseconds = 150,
ToMilliseconds = 300
};
Hartbeat = new Range()
{
FromMilliseconds = 1000,
ToMilliseconds = 1500,
};
FailureTolerance = 1;
Ip4Only = true;
AppendPort = 12346;
VotePort = 12348;
_ipAddress = new Lazy<IPAddress>(() =>
{
var ip4Only = Ip4Only;
var availableAddresses = Dns.GetHostAddresses(Dns.GetHostName());
return availableAddresses
.FirstOrDefault(
ip =>
ip.AddressFamily ==
(ip4Only ? AddressFamily.InterNetwork : AddressFamily.InterNetworkV6));
});
}
IDisposable Subscribe(IObserver<ServerStateType> observer, Range range)
{
_serverStateType = observer;
_hartbeatTimeoutDispose?.Dispose();
var timeout = _random.Next(range.FromMilliseconds, range.ToMilliseconds);
_hartbeatTimeout = Observable.Timer(TimeSpan.FromMilliseconds(timeout));
_hartbeatTimeoutDispose = _hartbeatTimeout.Subscribe((p) =>
{
if (isStopped)
return;
if (_options.UseLogging)
_logger.LogInformation($"Hartbeat Timeout {timeout}");
_serverStateType.OnNext(ServerStateType.Candidate);
Subscribe(_serverStateType, range);
});
return this;
}