Asynchronous checkpointing protocol for object-based systems

Abstract

We discuss how to take checkpoints in object based systems. Object based checkpoints are consistent in the object based system but may be inconsistent according to the traditional message based definition. We present an asynchronous protocol for taking object based checkpoints among objects. An object to take a checkpoint in the traditional protocol does not take a checkpoint if the current checkpoint is object based consistent with the other objects. The number of checkpoints can be reduced by the protocol.