private void HeartBeatTimeoutElapsed(object sender, ElapsedEventArgs e)
{
DetachEventListeners();
Logger.Log("INFO (F):: Follower's HB timed out. PROMOTION TIME.");
NodeRegistryCache.GetInstance().PromoteFollowerToCandidate(this);
HeartBeatTimeout.Stop();
HeartBeatTimeout.Close();
}
internal void HeartBeatSignalReceivedFromLeader(long p)
{
Logger.Log(string.Format("INFO (L) :: HB SIGNAL (REC) from leader."));
lock (lockerObject)
{
if (NodeRegistryCache.GetInstance().CurrentNode != null && NodeRegistryCache.GetInstance().CurrentNode is Leader)
{
DetachEventListerners();
}
NodeRegistryCache.GetInstance().DemoteLeaderToFollower();
}
}
public void SendHeartBeatMessage()
{
Logger.Log(string.Format("INFO (L) :: Initiating sending heartbeat signals for term {0}.", GetTerm()));
var dummyFollowers = NodeRegistryCache.GetInstance().Get();
foreach (var follower in dummyFollowers)
{
try
{
Task.Run(() => { MessageBroker.GetInstance().LeaderSendHeartbeatAsync(follower, this.CurrentStateData.Term); });
}
catch (Exception exp)
{
Logger.Log(exp);
}
}
if (dummyFollowers == null || dummyFollowers.Count == 0)
{
Logger.Log("INFO (L) :: No followers registered to the cluster Or Leader is not aware of any follower.");
}
}
public void SendRequestVotesToFollowers()
{
try
{
totalResponseReceivedForCurrentTerm++;
positiveVotes = new Dictionary <String, long>();
positiveVotes.Add(this.GetNodeId(), this.GetTerm());
var nodeRegistry = NodeRegistryCache.GetInstance();
foreach (Node node in nodeRegistry.Get())
{
if (!node.GetNodeId().Equals(this.nodeId))
{
MessageBroker.GetInstance().CandidateSendRequestVoteAsync(node, CurrentStateData.Term);
}
}
}
catch (Exception exp)
{
Logger.Log(exp);
}
}
private void electionTimeoutElapsed(object sender, ElapsedEventArgs e)
{
if (!TryGettingConsensus())
{
RestartElectionTimeout();
// Election timed out without reaching at consensus. Trying re election
Console.WriteLine("Election timed out without reaching at consensus. Trying re election");
SendRequestVotesToFollowers();
}
else
{
Logger.Log("INFO (C) :: Quorum won.");
lock (lockerObject)
{
if (NodeRegistryCache.GetInstance().CurrentNode != null && NodeRegistryCache.GetInstance().CurrentNode is Candidate)
{
DetachEventListerners();
NodeRegistryCache.GetInstance().PromoteCandidateToLeader(this);
electionTimeout.Stop();
}
}
//Dispose();
}
}
