Hi, As pointed out in [1], DHT-based overlays usually need to be configured statically (e.g. by assuming a certain churn level and network size). The problem is setting the parameters so that the overlay achieves the desired reliability and performance even in challenging conditions, such as under heavy churn. This naturally results in high cost in the common case or alternatively, poor performance or even network partitioning in worse than expected conditions. This kind of hand-tuning rarely works in real settings because it requires perfect knowledge about the future.
In my opinion, the P2PSIP WG should specify a self-tuning DHT algorithm which would adapt to the operating conditions (e.g. network size and churn rate). This would make it possible to use the DHT in a wide range of environments instead of e.g. only small-scale low-churn networks. Any comments? Jouni [1] R. Mahajan, M. Castro, and A. Rowstron. Controlling the cost of reliability in peer-to-peer overlays. In IPTPS, 2003 _______________________________________________ P2PSIP mailing list [email protected] https://www.ietf.org/mailman/listinfo/p2psip
