public void Process(int iteration, RandTestQueueItem item)
{
var electionsDone = item.Message as ElectionMessage.ElectionsDone;
if (electionsDone != null)
{
MemberInfo[] previousMembers;
if (_previousGossip.TryGetValue(item.EndPoint, out previousMembers))
{
var masterMemberIndex = Array.FindIndex(previousMembers,
x => x.Is(electionsDone.Master.InternalHttpEndPoint));
if (masterMemberIndex != -1)
{
var previousMasterInfo = previousMembers[masterMemberIndex];
var masterEndPoint = previousMasterInfo.InternalHttpEndPoint;
previousMembers[masterMemberIndex] =
MemberInfo.ForVNode(previousMasterInfo.InstanceId, DateTime.UtcNow, VNodeState.Master,
previousMasterInfo.IsAlive,
masterEndPoint, null, masterEndPoint, null, masterEndPoint, masterEndPoint,
-1, 0, 0, -1, -1, Guid.Empty, 0);
}
}
}
var updatedGossip = _createUpdatedGossip(iteration, item, _instances, _initialGossip, _previousGossip);
if (updatedGossip != null)
{
if (updatedGossip.Length > _instances.Length)
{
throw new InvalidDataException(
"Gossip should not contain more items than there are servers in the cluster.");
}
_processedItems.Add(item);
foreach (var memberInfo in updatedGossip)
{
_sendOverHttpProcessor.RegisterEndpointToSkip(memberInfo.ExternalTcpEndPoint, !memberInfo.IsAlive);
}
var updateGossipMessage = new GossipMessage.GossipUpdated(new ClusterInfo(updatedGossip));
_enqueue(item, updateGossipMessage);
_previousGossip[item.EndPoint] = updatedGossip;
var master =
updateGossipMessage.ClusterInfo.Members.FirstOrDefault(x =>
x.IsAlive && x.State == VNodeState.Master);
if (master == null)
{
_enqueue(item, new ElectionMessage.StartElections());
}
}
}
public void Process(int iteration, RandTestQueueItem item)
{
var electionsMsg = item.Message as ElectionMessage.ElectionsDone;
if (electionsMsg != null)
{
_electionsResults[item.EndPoint] = electionsMsg.Leader.ExternalHttpEndPoint;
Done = _electionsResults.Count == _instancesCount;
}
}
public virtual void Process(int iteration, RandTestQueueItem item)
{
var msg = item.Message as ElectionMessage.ElectionsDone;
if (msg != null)
{
var master = msg.Master.ExternalHttpEndPoint;
ElectionsResults[item.EndPoint] = Tuple.Create(msg.InstalledView, master);
Done = ElectionsResults.Values.Count(x => x.Item1 == msg.InstalledView) >= _majorityCount;
}
}
private MemberInfo[] CreateUpdatedGossip(int iteration,
RandTestQueueItem item,
ElectionsInstance[] instances,
MemberInfo[] initialGossip,
Dictionary <IPEndPoint, MemberInfo[]> previousGossip)
{
if (previousGossip[item.EndPoint].Length < 5)
{
Console.WriteLine("Update item: {0} : {1}", iteration, item.EndPoint.Port);
return(instances.Select((x, i) =>
MemberInfo.ForVNode(x.InstanceId, DateTime.UtcNow, VNodeState.Unknown, true,
x.EndPoint, null, x.EndPoint, null, x.EndPoint, x.EndPoint,
-1, 0, 0, -1, -1, Guid.Empty, 0)).ToArray());
}
return(null);
}
private MemberInfo[] CreateUpdatedGossip(int iteration,
RandTestQueueItem item,
ElectionsInstance[] instances,
MemberInfo[] initialGossip,
Dictionary <IPEndPoint, MemberInfo[]> previousGossip)
{
if (iteration == 1 || (iteration % 100 != (item.EndPoint.Port % 1000) && _randomCase.Next(100) < 30))
{
return(null);
}
if (previousGossip[item.EndPoint].Length < 5)
{
return(instances.Select((x, i) =>
MemberInfo.ForVNode(x.InstanceId, DateTime.UtcNow, VNodeState.Unknown, true,
x.EndPoint, null, x.EndPoint, null, x.EndPoint, x.EndPoint,
-1, 0, 0, -1, -1, Guid.Empty, 0, false))
.ToArray());
}
return(null);
}
private void Enqueue(RandTestQueueItem item, Message message)
{
Runner.Enqueue(item.EndPoint, message, item.Bus, 10);
}
public void Process(int iteration, RandTestQueueItem item)
{
_items.Add(item);
}
