private AppendEntriesResponse AppendEntries(string address, IHost host, ulong nextIndex)
{
AppendEntriesRequest request = new AppendEntriesRequest
{
LeaderId = Id,
Term = _stateController.PersistentState.CurrentTerm,
PrevLogIndex = _stateController.PersistentState.LastLogIndex,
PrevLogTerm = _stateController.PersistentState.LastLogTerm,
LeaderCommit = _stateController.VolatileState.CommitIndex
};
if (_stateController.PersistentState.LastLogIndex >= nextIndex)
{
List <LogEntry> logEntries = _uncommittiedLogs.FindAll(w => w.Index >= nextIndex);
if (logEntries != null && logEntries.Any())
{
request.Entries = logEntries;
}
}
AppendEntriesResponse response = host.AppendEntriesInvoke(request);
if (!response.IsSuccess && _leaderVolatileStates[address].NextIndex != 0)
{
_leaderVolatileStates[address].NextIndex -= 1;
response = AppendEntries(address, host, _leaderVolatileStates[address].NextIndex);
}
return(response);
}