internal async Task <IPeerResponse> HandleAppendEntriesRequest(AppendEntriesRequest <TWriteOp> entry)
{
var ceva = entry.Term;
var r = entry.PrevLogIndex;
var rr = entry.Entries;
var t = entry.LeaderId;
var s = entry.PrevLogTerm;
if (log.LogEntries.Count < entry.Entries.Count)
{
log.LogEntries = entry.Entries;
Console.WriteLine($" append new log {log.LogEntries.Last()?.Operation}");
}
return(new RequestVoteResponse()
{
Sender = Id,
Term = _currentTerm,
VoteGranted = false,
});
}
/// <summary>
/// Processes the given append entries request.
/// </summary>
/// <param name="request">AppendEntriesRequest</param>
void AppendEntries(AppendEntriesRequest request)
{
if (request.Term < this.CurrentTerm)
{
Console.WriteLine("\n [Server] " + this.ServerId + " | term " + this.CurrentTerm + " | log " +
this.Logs.Count + " | last applied: " + this.LastApplied + " | append false (< term)\n");
this.Send(request.LeaderId, new AppendEntriesResponse(this.CurrentTerm, false,
this.Id, request.ReceiverEndpoint));
}
else
{
if (request.PrevLogIndex > 0 &&
(this.Logs.Count < request.PrevLogIndex ||
this.Logs[request.PrevLogIndex - 1].Term != request.PrevLogTerm))
{
Console.WriteLine("\n [Server] " + this.ServerId + " | term " + this.CurrentTerm + " | log " +
this.Logs.Count + " | last applied: " + this.LastApplied + " | append false (not in log)\n");
this.Send(request.LeaderId, new AppendEntriesResponse(this.CurrentTerm,
false, this.Id, request.ReceiverEndpoint));
}
else
{
if (request.Entries.Count > 0)
{
var currentIndex = request.PrevLogIndex + 1;
foreach (var entry in request.Entries)
{
if (this.Logs.Count < currentIndex)
{
this.Logs.Add(entry);
}
else if (this.Logs[currentIndex - 1].Term != entry.Term)
{
this.Logs.RemoveRange(currentIndex - 1, this.Logs.Count - (currentIndex - 1));
this.Logs.Add(entry);
}
currentIndex++;
}
}
if (request.LeaderCommit > this.CommitIndex &&
this.Logs.Count < request.LeaderCommit)
{
this.CommitIndex = this.Logs.Count;
}
else if (request.LeaderCommit > this.CommitIndex)
{
this.CommitIndex = request.LeaderCommit;
}
if (this.CommitIndex > this.LastApplied)
{
this.LastApplied++;
}
Console.WriteLine("\n [Server] " + this.ServerId + " | term " + this.CurrentTerm + " | log " +
this.Logs.Count + " | entries received " + request.Entries.Count + " | last applied " +
this.LastApplied + " | append true\n");
this.LeaderId = request.LeaderId;
this.Send(request.LeaderId, new AppendEntriesResponse(this.CurrentTerm,
true, this.Id, request.ReceiverEndpoint));
}
}
}
