Paper Title
Effective Message Purging For Sender-Based Message Logging Considering Lost Message Occurrence

This paper presents two selective stable message log purging algorithms for our previous sender-based message logging protocol to purge effectively logged messages from volatile memories of their successors' senders. The first only piggybacks a variable on original control messages for logging each application message to impose minimum overhead on network link. The second uses a vector sized piggybacking information to speed up eliminating useless log information and make enough spare space of log buffer remained as much as possible. They incur both no extra message and forced checkpoint. Index Terms—Distributed System, Group Communication, Causal Message Ordering, Mobile Agent.