Debugging distributed applications is commonly thought to be very difficult.and one of the problems is that distributed applications are inherently more complex than sequential ones.To manage this problem

the method of abstracting events is proposed

which lets the users grasp various aspects of behaviors of a distributed application.Abstract event time stamp is used to decide the `happened before’ relation among abstract events

which plays a very important role during abstracting and debugging distributed applications.We provide a new incompleted algorithm of timestamping abstract event based on Lamport logical time

which needs less storage and costs less time than others.Proof of the correctness of the algorithm is also given.