void LeaderTimerElapse(object userToken)
{
try
{
//Sending signal to all (except self that it is a leader)
LeaderHeartbeat heartBeat = null;
lock (lock_Operations)
{
heartBeat = new LeaderHeartbeat()
{
LeaderTerm = this.NodeTerm,
StateLogLatestIndex = NodeStateLog.StateLogId,
StateLogLatestTerm = NodeStateLog.StateLogTerm,
LastStateLogCommittedIndex = this.NodeStateLog.LastCommittedIndex,
LastStateLogCommittedIndexTerm = this.NodeStateLog.LastCommittedIndexTerm
};
}
//VerbosePrint($"{NodeAddress.NodeAddressId} (Leader)> leader_heartbeat");
this.Sender.SendToAll(eRaftSignalType.LeaderHearthbeat, heartBeat.SerializeBiser(), this.NodeAddress, entitySettings.EntityName, true);
}
catch (Exception ex)
{
Log.Log(new WarningLogEntry()
{
Exception = ex, Method = "Raft.RaftNode.LeaderTimerElapse"
});
}
}
/// <summary>
/// Leader receives accepted Log
/// </summary>
/// <param name="address"></param>
/// <param name="data"></param>
void ParseStateLogEntryAccepted(NodeAddress address, byte[] data)
{
if (this.NodeState != eNodeState.Leader)
{
return;
}
StateLogEntryApplied applied = StateLogEntryApplied.BiserDecode(data);
var res = this.NodeStateLog.EntryIsAccepted(address, GetMajorityQuantity(), applied);
if (res == StateLog.eEntryAcceptanceResult.Committed)
{
this.VerbosePrint($"{this.NodeAddress.NodeAddressId}> LogEntry {applied.StateLogEntryId} is COMMITTED (answer from {address.NodeAddressId})");
RemoveLeaderLogResendTimer();
//Force heartbeat, to make followers to get faster info about commited elements
LeaderHeartbeat heartBeat = new LeaderHeartbeat()
{
LeaderTerm = this.NodeTerm,
StateLogLatestIndex = NodeStateLog.StateLogId,
StateLogLatestTerm = NodeStateLog.StateLogTerm,
LastStateLogCommittedIndex = this.NodeStateLog.LastCommittedIndex,
LastStateLogCommittedIndexTerm = this.NodeStateLog.LastCommittedIndexTerm
};
this.Sender.SendToAll(eRaftSignalType.LeaderHearthbeat, heartBeat.SerializeBiser(), this.NodeAddress, entitySettings.EntityName, true);
//---------------------------------------
//this.NodeStateLog.RemoveEntryFromDistribution(applied.StateLogEntryId, applied.StateLogEntryTerm);
InLogEntrySend = false;
ApplyLogEntry();
}
}