public void Changes_CS_configuration_when_primary_server_is_available()
{
A.CallTo(() => backupServers.GetNextPrimaryServer()).Returns(BackupServer);
handler.Handle(new ServerStoppedResponding());
A.CallTo(() => cfgProvider.ChangeConfiguration(BackupServer.Address, BackupServer.Port))
.MustHaveHappened();
}
public TConfig Load <TConfig>(Func <TConfig, string> addressGetter, Func <TConfig, int> portGetter,
string filename = Constants.ConfigFileName)
where TConfig : class, new()
{
var cfg = configProvider.LoadConfiguration <TConfig>(filename, Environment.GetCommandLineArgs());
var address = IPAddress.Parse(addressGetter(cfg));
var port = portGetter(cfg);
csConfigProvider.ChangeConfiguration(address, port);
return(cfg);
}
public void Handle(ServerStoppedResponding notification)
{
var server = backupManager.GetNextPrimaryServer();
if (server != null)
{
logger.Error($"Primary CS is down, restoring connection to {server.Address}:{server.Port}.");
cfgProvider.ChangeConfiguration(server.Address, server.Port);
mediator.Publish(new ConnectionRestored());
}
else
{
logger.Error("Primary CS is down, notifying system we need to work as primary");
mediator.Publish(new SwitchedToPrimary());
}
}
public void Handle(ServerStoppedResponding notification)
{
// TODO: should we wait a little bit more just to let CS start its work?
var server = backupManager.GetNextServer();
if (server != null)
{
logger.Error($"Primary CS is down, restoring connection to {server.Address}:{server.Port}.");
cfgProvider.ChangeConfiguration(server.Address, server.Port);
Task.Factory.StartNew(async() =>
{
await Task.Delay(2000);
mediator.Publish(new ConnectionRestored());
});
}
else
{
logger.Error("Primary CS is down but we don't have other backup servers, forcing exit");
mediator.Send(new ShutdownSystem());
}
}
