public void Handle(ReplicationMessage.SubscribeToMaster message)
{
if (_state != VNodeState.PreReplica)
{
throw new Exception(string.Format("_state is {0}, but is expected to be {1}", _state, VNodeState.PreReplica));
}
var logPosition = _db.Config.WriterCheckpoint.ReadNonFlushed();
var epochs = _epochManager.GetLastEpochs(ClusterConsts.SubscriptionLastEpochCount).ToArray();
Log.Info("Subscribing at LogPosition: {logPosition} (0x{logPosition:X}) to MASTER [{remoteEndPoint}, {masterId:B}] as replica with SubscriptionId: {subscriptionId:B}, "
+ "ConnectionId: {connectionId:B}, LocalEndPoint: [{localEndPoint}], Epochs:\n{epochs}...\n.",
logPosition, logPosition, _connection.RemoteEndPoint, message.MasterId, message.SubscriptionId,
_connection.ConnectionId, _connection.LocalEndPoint, string.Join("\n", epochs.Select(x => x.AsString())));
var chunk = _db.Manager.GetChunkFor(logPosition);
if (chunk == null)
{
throw new Exception(string.Format("Chunk was null during subscribing at {0} (0x{0:X}).", logPosition));
}
SendTcpMessage(_connection,
new ReplicationMessage.SubscribeReplica(
logPosition, chunk.ChunkHeader.ChunkId, epochs, _nodeInfo.InternalTcp,
message.MasterId, message.SubscriptionId, isPromotable: true));
}
