private void connect()
{
Console.WriteLine("Connecting thread running...");
while (!node_should_stop_)
{
for (int i = 0; i < ExClusterNodeList_.Count; ++i)
{
ClusterNodeSocket tmp = ExClusterNodeList_[i];
if (tmp.transport.IsOpen)
{
continue;
}
Console.WriteLine(String.Format("Connecting to {0}:{1}...",
OriginalIPEndPointList_[i].Address.ToString(),
OriginalIPEndPointList_[i].Port));
try
{
tmp.transport.Open();
Console.WriteLine(String.Format("success: Connecting to {0}:{1}",
OriginalIPEndPointList_[i].Address.ToString(),
OriginalIPEndPointList_[i].Port));
}
catch (TimeoutException ex)
{
Console.WriteLine(String.Format("Failed: Connecting to {0}:{1} {2}",
OriginalIPEndPointList_[i].Address.ToString(),
OriginalIPEndPointList_[i].Port, ex.Message));
}
catch (Exception ex)
{
Console.WriteLine(String.Format("Failed: Connecting to {0}:{1} {2}",
OriginalIPEndPointList_[i].Address.ToString(),
OriginalIPEndPointList_[i].Port, ex.Message));
tmp.transport = new TSocket(tmp.IPPort.Address.ToString(), tmp.IPPort.Port, Config.Heartbeat_interval * 2); //timeout ms
TProtocol protocol = new TBinaryProtocol(tmp.transport);
tmp.client = new ClusterNodeRPC.Client(protocol);
}
}
//Thread.Sleep(500);
}
Console.WriteLine("{0} Connecting thread exited...", ServerHandler_.id);
}
// we can't statistic acks got in one round to judge whether commit, because leader
// may send different log to others
public void leader_heartbeat_sender()
{
while (!leader_should_stop_)
{
int alive = 0;
int bigger_than_commitIndex_num = 0;
for (int i = 0; i < ExClusterNodeList_.Count; ++i)
{
ClusterNodeSocket node = ExClusterNodeList_[i];
//heartbeatSenderDelegate del = new heartbeatSenderDelegate(heartbeatSender);
//IAsyncResult res = del.BeginInvoke(new HeartbeatSenderWrapper(node, ""),null,Object());
if (node.transport.IsOpen)
{
++alive;
try
{
string send_content = "";
if (nextIndex_[i] < log_.Count)
{
send_content = log_[nextIndex_[i]].data;
}
// send heartbeat or log entry
// if nextIndex_[i] - 1 == -1, the server will process it correctly no matter what value the getLogTermAt is
bool res = node.client.heartbeat(id, term, nextIndex_[i] - 1, getLogTermAt(nextIndex_[i] - 1), send_content, commitIndex_);
if (send_content != "")
{
if (res)
{
++matchIndex_[i];
++nextIndex_[i];
if (matchIndex_[i] > commitIndex_)
{
++bigger_than_commitIndex_num;
}
}
else
{
--nextIndex_[i];
}
}
else
{
//do nothing for heaartbeat
}
}
catch (Exception ex)
{
LOG(String.Format("heartbeat error {0} {1}", ex.Message, ex.Data));
}
}
}
LOG(String.Format("One round({0}) heartbeat sent done", term));
// if commitIndex + 1 > log's last index, than first condition would not meet
if ((ExClusterNodeList_.Count == 0 && commitIndex_ < log_.Count - 1)
||
(bigger_than_commitIndex_num > alive / 2 &&
commitIndex_ + 1 < log_.Count &&
log_[commitIndex_ + 1].term == term)
)
{
++commitIndex_;
}
Thread.Sleep(Config.Heartbeat_interval);
}
Console.WriteLine(String.Format("{0} Leard heartbeat sender thread exit", id));
}
public HeartbeatSenderWrapper(ClusterNodeSocket _node, string _data)
{
node = _node;
data = _data;
}