private async Task AppendEntries(string node)
{
try
{
int index = Array.IndexOf(_nodes, node);
var prevLog = _log.SingleOrDefault(l => l.Index == _nextIndex[index] - 1);
if (_nextIndex[index] == _matchIndex[index])
{
var request = new AppendEntriesArguments
{
Term = _currentTerm,
LeaderId = NodeName,
PrevLogIndex = prevLog?.Index ?? 0,
PrevLogTerm = prevLog?.Term ?? 0,
Entries = _log.Where(l => l.Index >= _nextIndex[index]).ToArray(),
LeaderCommit = _commitIndex
};
var result = await Communication.AppendEntriesAsync(node, request);
}
else
{
// Don't send actual logs until we know how up-to-date the node is
var request = new AppendEntriesArguments
{
Term = _currentTerm,
LeaderId = NodeName,
PrevLogIndex = prevLog?.Index ?? 0,
PrevLogTerm = prevLog?.Term ?? 0,
LeaderCommit = _commitIndex
};
var result = await Communication.AppendEntriesAsync(node, request);
}
}
catch (Exception ex)
{
Log.Error(ex, "Error in RequestVote");
}
}
