private DxStoreStateMachine CreateStateMachine(Round <string>?leaderHint, PaxosBasicInfo referencePaxos)
{
Policy policy = new Policy
{
DebugName = this.GroupConfig.Self
};
bool flag = false;
string[] array = (from m in this.GroupConfig.Members
select m.Name).ToArray <string>();
if (referencePaxos != null && referencePaxos.IsMember(this.GroupConfig.Self))
{
array = referencePaxos.Members;
flag = true;
}
IDxStoreEventLogger eventLogger = this.EventLogger;
DxEventSeverity severity = DxEventSeverity.Info;
int id = 0;
string formatString = "{0}: Creating state machine with membership '{1}' (IsUsingReferencePaxos: {2}, IsReferencePaxosLeader: {3}, GroupConfig.Members: {4}";
object[] array2 = new object[5];
array2[0] = this.GroupConfig.Identity;
array2[1] = array.JoinWithComma("<null>");
array2[2] = flag;
array2[3] = (flag ? referencePaxos.IsLeader.ToString() : "<unknown>");
array2[4] = (from m in this.GroupConfig.Members
select m.Name).JoinWithComma("<null>");
eventLogger.Log(severity, id, formatString, array2);
Dictionary <string, ServiceEndpoint> membersInstanceClientEndPoints = this.GetMembersInstanceClientEndPoints(array);
NodeEndPointsBase <ServiceEndpoint> nodeEndPointsBase = new NodeEndPointsBase <ServiceEndpoint>(this.GroupConfig.Self, membersInstanceClientEndPoints);
this.PerfCounters = new Counters(this.GroupConfig.Identity);
Configuration <string> configuration = new Configuration <string>(nodeEndPointsBase.Nodes, nodeEndPointsBase.Nodes, nodeEndPointsBase.Nodes, null);
GroupMembersMesh mesh = new GroupMembersMesh(this.Identity, nodeEndPointsBase, this.GroupConfig);
EsentStorage <string, DxStoreCommand> esentStorage = new EsentStorage <string, DxStoreCommand>(this.GroupConfig.Settings.PaxosStorageDir, this.PerfCounters, null, null, true);
esentStorage.TryInitialize(configuration);
return(new DxStoreStateMachine(policy, this, nodeEndPointsBase, esentStorage, mesh, this.PerfCounters, leaderHint));
}
public static ProxyStateMachine New(string location, string serviceName)
{
ProxyStateMachine stateMachine;
var nodeConfig = RoleEnvironment.GetConfigurationSettingValue(serviceName + ".Nodes");
var nodeDescriptors = nodeConfig.Split(new char[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
var nodes = new Dictionary <string, Uri>();
foreach (var d in nodeDescriptors)
{
var n = d.Split('=');
try
{
nodes.Add(n[0], new UriBuilder()
{
Host = n[1]
}.Uri);
}
catch (Exception x)
{
Trace.TraceError(x.ToString());
}
}
Uri host;
if (nodes.TryGetValue(location, out host))
{
var preferedLeaders = RoleEnvironment.GetConfigurationSettingValue(serviceName + ".PreferedActiveMembers").Split(';');
var localStorage = RoleEnvironment.GetLocalResource("LocalStorage").RootPath;
var storagePath = Path.Combine(localStorage, serviceName);
if (!Directory.Exists(storagePath))
{
Directory.CreateDirectory(storagePath);
}
var storage = new EsentStorage <string, SerialilzableWebRequest>(storagePath, new Counters(location));
var configuration = new Configuration <string>(preferedLeaders, preferedLeaders, nodes.Keys);
storage.TryInitialize(configuration);
Trace.WriteLine("Local Storage Initialized");
var meshPath = serviceName + "Mesh.ashx";
var uri = new UriBuilder(host)
{
Path = meshPath
}.Uri;
X509Certificate2 cert = Utility.GetCert();
var mesh = new MeshHandler <Message>(uri, null, cert);
RouteTable.Routes.Add(new Route(meshPath, new FuncRouteHandler(_ => mesh)));
FUSE.Weld.Azure.Configuration.SetConfigurationSettingPublisher();
var s2 = Utility.GetStorageAccount(true);
var container = s2.CreateCloudBlobClient().GetContainerReference("root");
container.CreateIfNotExist();
Trace.Write("Remote Storage Loaded");
stateMachine = new ProxyStateMachine(location, nodes, mesh, storage, serviceName, preferedLeaders);
stateMachine.Paxos.WhenDiverged.Subscribe(d =>
{
Utility.DisableService(stateMachine.ServiceName);
});
Global.lastMessages[serviceName] = new Queue <Timestamped <Tuple <string, Message, string> > >();
Global.stateMachines[serviceName] = stateMachine;
var o = stateMachine.Mesh
.Where(m => Interesting(m.Item2))
.Where(m => stateMachine.EndpointUrisToNames.ContainsKey(m.Item1))
.Select(m => Tuple.Create(stateMachine.EndpointUrisToNames[m.Item1], m.Item2, "To"))
.Timestamp();
var i = mesh
.Where(m => Interesting(m.Item2))
.Where(m => stateMachine.EndpointUrisToNames.ContainsKey(m.Item1))
.Select(m => Tuple.Create(stateMachine.EndpointUrisToNames[m.Item1], m.Item2, "From"))
.Timestamp();
i
.Merge(o)
.Subscribe(m =>
{
try
{
lock (Global.lastMessages)
{
var lastMessages = Global.lastMessages[serviceName];
lastMessages.Enqueue(m);
while (lastMessages.Count > 1000)
{
lastMessages.Dequeue();
}
}
}
catch
{
}
});
var enabled = false;
var enabledState = container.GetBlobReference(serviceName + "EnabledState.txt");
try
{
enabled = Boolean.Parse(enabledState.DownloadText());
}
catch
{
}
mesh.enabled = enabled;
return(stateMachine);
}
else
{
throw new ArgumentException("Location not found");
}
}