Design and analysis of an integrated checkpointing and recovery scheme for distributed applications

An integrated checkpointing and recovery scheme which exploits the low latency and high coverage characteristics of a concurrent error detection scheme is presented. Message dependency, which is the main source of multistep rollback in distributed systems, is minimized by using a new message validation technique derived from the notion of concurrent error detection. The concept of a new global state matrix is introduced to track error checking and message dependency in a distributed system and assist in the recovery. The analytical model, algorithms and data structures to support an easy implementation of the new scheme are presented. The completeness and correctness of the algorithms are proved. A number of scenarios and illustrations that give the details of the analytical model are presented. The benefits of the integrated checkpointing scheme are quantified by means of simulation using an object-oriented test framework