public async Task DeactivationTest(Guid streamGuid, string streamNamespace)
{
// get producer and consumer
ISampleStreaming_ProducerGrain producer = SampleStreaming_ProducerGrainFactory.GetGrain(Guid.NewGuid());
IMultipleSubscriptionConsumerGrain consumer = MultipleSubscriptionConsumerGrainFactory.GetGrain(Guid.NewGuid());
// subscribe (PubSubRendezvousGrain will have one consumer)
StreamSubscriptionHandle <int> subscriptionHandle = await consumer.BecomeConsumer(streamGuid, streamNamespace, streamProviderName);
// produce one message (PubSubRendezvousGrain will have one consumer and one producer)
await producer.BecomeProducer(streamGuid, streamNamespace, streamProviderName);
await producer.Produce();
var count = await consumer.GetNumberConsumed();
Assert.AreEqual(count[subscriptionHandle], 1, "Consumer grain has not received stream message");
//TODO: trigger deactivation programmatically
await Task.Delay(TimeSpan.FromMilliseconds(130000)); // wait for the PubSubRendezvousGrain and the SampleStreaming_ProducerGrain to be deactivated
// deactivating PubSubRendezvousGrain and SampleStreaming_ProducerGrain during the same GC cycle causes a deadlock
// resume producing after the PubSubRendezvousGrain and the SampleStreaming_ProducerGrain grains have been deactivated:
await producer.BecomeProducer(streamGuid, streamNamespace, streamProviderName).WithTimeout(Timeout, "BecomeProducer is hung due to deactivation deadlock");
await producer.Produce().WithTimeout(Timeout, "Produce is hung due to deactivation deadlock");
// consumer grain should continue to receive stream messages:
count = await consumer.GetNumberConsumed();
Assert.AreEqual(count[subscriptionHandle], 2, "Consumer did not receive stream messages after PubSubRendezvousGrain and SampleStreaming_ProducerGrain reactivation");
}
public async Task DeactivationTest_ClientConsumer(Guid streamGuid, string streamNamespace)
{
// get producer and consumer
ISampleStreaming_ProducerGrain producer = SampleStreaming_ProducerGrainFactory.GetGrain(Guid.NewGuid());
var count = new Counter();
// get stream and subscribe
IStreamProvider streamProvider = GrainClient.GetStreamProvider(streamProviderName);
var stream = streamProvider.GetStream <int>(streamGuid, streamNamespace);
StreamSubscriptionHandle <int> subscriptionHandle = await stream.SubscribeAsync((e, t) => count.Increment());
// produce one message (PubSubRendezvousGrain will have one consumer and one producer)
await producer.BecomeProducer(streamGuid, streamNamespace, streamProviderName);
await producer.Produce();
Assert.AreEqual(count.Value, 1, "Client consumer grain has not received stream message");
//TODO: trigger deactivation programmatically
await Task.Delay(TimeSpan.FromMilliseconds(130000)); // wait for the PubSubRendezvousGrain and the SampleStreaming_ProducerGrain to be deactivated
// deactivating PubSubRendezvousGrain and SampleStreaming_ProducerGrain during the same GC cycle causes a deadlock
// resume producing after the PubSubRendezvousGrain and the SampleStreaming_ProducerGrain grains have been deactivated:
await producer.BecomeProducer(streamGuid, streamNamespace, streamProviderName).WithTimeout(Timeout, "BecomeProducer is hung due to deactivation deadlock");
await producer.Produce().WithTimeout(Timeout, "Produce is hung due to deactivation deadlock");
Assert.AreEqual(count.Value, 2, "Client consumer grain did not receive stream messages after PubSubRendezvousGrain and SampleStreaming_ProducerGrain reactivation");
}