/// <summary>
/// IAllocatedEvaluator handler. It will take the following action based on the system state:
/// Case WaitingForEvaluator
/// Add Evaluator to the Evaluator Manager
/// submit Context and Services
/// Case Fail
/// Do nothing. This is because the code that sets system Fail has executed FailedAction. It has shut down all the allocated evaluators/contexts.
/// If a new IAllocatedEvaluator comes after it, we should not submit anything so that the evaluator is returned.
/// Other cases - not expected
/// </summary>
/// <param name="allocatedEvaluator">The allocated evaluator</param>
public void OnNext(IAllocatedEvaluator allocatedEvaluator)
{
Logger.Log(Level.Info, "AllocatedEvaluator memory [{0}], systemState {1}.", allocatedEvaluator.GetEvaluatorDescriptor().Memory, _systemState.CurrentState);
lock (_lock)
{
using (Logger.LogFunction("IMRUDriver::IAllocatedEvaluator"))
{
switch (_systemState.CurrentState)
{
case SystemState.WaitingForEvaluator:
if (!_evaluatorManager.IsMasterEvaluatorAllocated())
{
_evaluatorManager.AddMasterEvaluator(allocatedEvaluator);
_evaluatorManager.RequestMapEvaluators(_totalMappers);
}
else
{
_evaluatorManager.AddAllocatedEvaluator(allocatedEvaluator);
}
SubmitContextAndService(allocatedEvaluator);
break;
case SystemState.Fail:
Logger.Log(Level.Info,
"Receiving IAllocatedEvaluator event, but system is in FAIL state, ignore it.");
allocatedEvaluator.Dispose();
break;
default:
UnexpectedState(allocatedEvaluator.Id, "IAllocatedEvaluator");
break;
}
}
}
}
public void OnNext(IAllocatedEvaluator eval)
{
Logger.Log(Level.Info, string.Format(CultureInfo.InvariantCulture, "Received evaluator. Runtime Name: {0}.", eval.GetEvaluatorDescriptor().RuntimeName));
eval.Dispose();
}
public void OnNext(IAllocatedEvaluator allocatedEvaluator)
{
Logger.Log(Level.Info, "Trigger {0} and close {1}", _countdownEvent, allocatedEvaluator.Id);
_countdownEvent.Signal();
allocatedEvaluator.Dispose();
}
