public void EntryReplyMessageRecived(AppendEntryResultMessage m)
{
if (_serverIdentifier.Equals(m.From))
return;
if (_isDispose) return;
if (_options.UseLogging)
_logger.LogInformation($"Processing {nameof(EntryReplyMessageRecived)} \n\t\t Term {m.Term} \n\t\t Success {m.Success}");
if (!_nodes.Contains(m.From))
{
_nodes.Add(m.From);
}
if (m.Term < _election.CurrentTerm) return;
if (m.Term > _election.CurrentTerm)
{
_election.CurrentTerm = m.Term;
_state?.OnNext(ServerStateType.Follower);
return;
}
var term = _election.CurrentTerm;
if (m.Success)
{
MatchIndex.AddOrUpdate(m.From, m.LogIndex, (oldKey, oldValue) => m.LogIndex);
}
NextIndex.AddOrUpdate(m.From, m.LogIndex + 1, (oldKey, oldValue) => m.LogIndex + 1);
var index = _logReplication.CommitIndex;
// An entry is committed once a majority of followers acknowledge it...
if (HasMajorityToCommit(ref index))
{
// LogReplication commit index gets moved forward to the index
// will get replicated out to followers in next heatbeat
var logs =_logReplication.ToCommit(index, term);
foreach (var logEntry in logs)
{
_clientReply.OnNext(new ClientResultMessage()
{
To = logEntry.From,
Granted = true
});
}
_logReplication.Commit(logs);
}
}
public void OnHartbeat(AppendEntryResultMessage m)
{
var now = DateTimeOffset.UtcNow;
// Update node from the which responsed to a appendEntry
var node = _list.Keys.FirstOrDefault(p => p.Identifier.Equals(m.From));
if (node != null) _list[node] = now.AddSeconds(10);
// Remove expired node's
foreach (var item in _list.Where(item => item.Value < now))
{
DateTimeOffset value;
_list.TryRemove(item.Key, out value);
}
}
