private bool IsLastLogUpToDate(long lastTerm, long lastIndex) { var last = LogSequence.LastRaftLog(); if (lastTerm > last.Term) { return(true); } if (lastTerm < last.Term) { return(false); } return(lastIndex >= last.Index); }
private void SendRequestVote(SchedulerTask ThisTask) { lock (this) { VoteSuccess.Clear(); // 每次选举开始清除。 LeaderId = string.Empty; LogSequence.SetVoteFor(Name); // Vote Self First. LogSequence.TrySetTerm(LogSequence.Term + 1); WaitMajorityVoteTimoutTask?.Cancel(); WaitMajorityVoteTimoutTask = null; var arg = new RequestVoteArgument(); arg.Term = LogSequence.Term; arg.CandidateId = Name; var log = LogSequence.LastRaftLog(); arg.LastLogIndex = log.Index; arg.LastLogTerm = log.Term; Server.Config.ForEachConnector( (c) => { if (false == c.IsHandshakeDone) { return; } var rpc = new RequestVote() { Argument = arg }; rpc.Send(c.Socket, (p) => ProcessRequestVoteResult(rpc, c)); logger.Debug("{0}: SendRequestVote {1}", Name, rpc); }); // 定时,如果超时选举还未完成,再次发起选举。 WaitMajorityVoteTimoutTask = Scheduler.Instance.Schedule( (ThisTask) => { lock (this) { StartRequestVoteDelayTask = null; ConvertStateTo(RaftState.Candidate); } }, RaftConfig.AppendEntriesTimeout + 1000); } }