public override void When()
{
// The EpochManager for these tests only caches 5 epochs
// Epochs 2 and 3 don't exist
EpochManager.WriteNewEpoch(0);
Writer.Write(CreateLogRecord(0), out _);
EpochManager.WriteNewEpoch(1);
Writer.Write(CreateLogRecord(1), out _);
_uncachedLeaderEpochs = EpochManager.GetLastEpochs(2);
EpochManager.WriteNewEpoch(4);
Writer.Write(CreateLogRecord(2), out _);
EpochManager.WriteNewEpoch(5);
Writer.Write(CreateLogRecord(3), out _);
EpochManager.WriteNewEpoch(6);
Writer.Write(CreateLogRecord(4), out _);
EpochManager.WriteNewEpoch(7);
Writer.Write(CreateLogRecord(5), out _);
EpochManager.WriteNewEpoch(8);
_replicaEpochs = new List <Epoch> {
new Epoch(_uncachedLeaderEpochs[0].EpochPosition + 8000, 3, Guid.NewGuid()),
new Epoch(_uncachedLeaderEpochs[0].EpochPosition + 4000, 2, Guid.NewGuid()),
new Epoch(_uncachedLeaderEpochs[0].EpochPosition, _uncachedLeaderEpochs[0].EpochNumber, _uncachedLeaderEpochs[0].EpochId),
new Epoch(_uncachedLeaderEpochs[1].EpochPosition, _uncachedLeaderEpochs[1].EpochNumber, _uncachedLeaderEpochs[1].EpochId)
};
AddSubscription(_replicaId, true, _replicaEpochs.ToArray(), _replicaEpochs[0].EpochPosition, out _replicaManager);
}
public void subscription_is_sent_a_replica_subscribed_message_to_epoch_position_after_common_epoch()
{
var subscribed = GetTcpSendsFor(_replicaManager).Select(x => x.Message)
.OfType <ReplicationMessage.ReplicaSubscribed>().ToArray();
Assert.AreEqual(1, subscribed.Length);
Assert.AreEqual(EpochManager.GetLastEpochs(5).First(x => x.EpochNumber == 4).EpochPosition, subscribed[0].SubscriptionPosition);
Assert.AreEqual(_replicaId, subscribed[0].SubscriptionId);
Assert.AreEqual(LeaderId, subscribed[0].LeaderId);
}
public override void When()
{
EpochManager.WriteNewEpoch(0);
Writer.Write(CreateLogRecord(0), out _);
Writer.Write(CreateLogRecord(1), out _);
Writer.Write(CreateLogRecord(2), out _);
Writer.Write(CreateLogRecord(3), out _);
Writer.Write(CreateLogRecord(4), out _subscribedPosition);
EpochManager.WriteNewEpoch(1);
_lastEpoch = EpochManager.GetLastEpoch();
var epochs = EpochManager.GetLastEpochs(10)
.Select(e => new Epoch(e.EpochPosition, e.EpochNumber, e.EpochId)).ToArray();
AddSubscription(_replicaId, true, epochs, _subscribedPosition, out _replicaManager);
}
public override void When()
{
EpochManager.WriteNewEpoch(0);
Writer.Write(CreateLogRecord(0), out _);
Writer.Write(CreateLogRecord(1), out _);
Writer.Write(CreateLogRecord(2), out var otherEpochLogPosition);
Writer.Write(CreateLogRecord(3), out _);
Writer.Write(CreateLogRecord(4), out _);
EpochManager.WriteNewEpoch(2);
var firstEpoch = EpochManager.GetLastEpochs(10).First(e => e.EpochNumber == 0);
_replicaEpochs = new List <Epoch> {
new Epoch(otherEpochLogPosition, 1, Guid.NewGuid()),
new Epoch(firstEpoch.EpochPosition, firstEpoch.EpochNumber, firstEpoch.EpochId)
};
AddSubscription(_replicaId, true, _replicaEpochs.ToArray(), _replicaEpochs[0].EpochPosition, out _replicaManager);
}
public override void When()
{
EpochManager.WriteNewEpoch(0);
Writer.Write(CreateLogRecord(0), out _);
Writer.Write(CreateLogRecord(1), out _);
Writer.Write(CreateLogRecord(2), out _);
Writer.Write(CreateLogRecord(3), out _);
Writer.Write(CreateLogRecord(4), out _);
EpochManager.WriteNewEpoch(1);
var subscribePosition = Db.Config.WriterCheckpoint.ReadNonFlushed() + 1000;
_replicaEpochs = new List <Epoch> {
new Epoch(subscribePosition, 2, Guid.NewGuid()),
};
_replicaEpochs.AddRange(EpochManager.GetLastEpochs(10)
.Select(e => new Epoch(e.EpochPosition, e.EpochNumber, e.EpochId)).ToList());
AddSubscription(_replicaId, true, _replicaEpochs.ToArray(), subscribePosition, out _replicaManager);
}
public override void When()
{
EpochManager.WriteNewEpoch(0);
Writer.Write(CreateLogRecord(0), out _);
EpochManager.WriteNewEpoch(1);
// The EpochManager for these tests only caches 5 epochs
_replicaEpochs = EpochManager.GetLastEpochs(2)
.Select(e => new Epoch(e.EpochPosition, e.EpochNumber, e.EpochId)).ToList();
Writer.Write(CreateLogRecord(1), out _);
EpochManager.WriteNewEpoch(2);
Writer.Write(CreateLogRecord(2), out _);
EpochManager.WriteNewEpoch(3);
Writer.Write(CreateLogRecord(3), out _);
EpochManager.WriteNewEpoch(4);
Writer.Write(CreateLogRecord(4), out _);
EpochManager.WriteNewEpoch(5);
Writer.Write(CreateLogRecord(5), out _);
EpochManager.WriteNewEpoch(6);
AddSubscription(_replicaId, true, _replicaEpochs.ToArray(), _replicaEpochs[0].EpochPosition, out _replicaManager);
}
public override void When()
{
EpochManager.WriteNewEpoch(0);
Writer.Write(CreateLogRecord(0), out _);
Writer.Write(CreateLogRecord(1), out _);
Writer.Write(CreateLogRecord(2), out _);
Writer.Write(CreateLogRecord(3), out _);
Writer.Write(CreateLogRecord(4), out _);
EpochManager.WriteNewEpoch(1);
Writer.Write(CreateLogRecord(5), out _);
Writer.Write(CreateLogRecord(6), out _);
Writer.Write(CreateLogRecord(7), out var lastWritePosition);
Writer.Flush();
_replicaEpochs = new List <Epoch> {
new Epoch(lastWritePosition + 2000, 4, Guid.NewGuid()),
new Epoch(lastWritePosition + 1000, 3, Guid.NewGuid()),
new Epoch(lastWritePosition, 2, Guid.NewGuid()),
};
_replicaEpochs.AddRange(EpochManager.GetLastEpochs(10)
.Select(e => new Epoch(e.EpochPosition, e.EpochNumber, e.EpochId)).ToList());
AddSubscription(_replicaId, true, _replicaEpochs.ToArray(), lastWritePosition + 2000, out _replicaManager);
}
