International Journal of Computer Science and Communication Networks (IJCSCN)
Cloud computing provide many service to the user. Now a day the user level is highly increased to utilize the services in cloud computing. In cloud computing the major problem area is fault tolerance. Fault tolerance is a major concern to guarantee availability and reliability of critical services as well as application execution. In order to minimize failure impact on the system and application execution, failures should be anticipated and handle. Fault tolerance techniques are used to predict these failures and take an appropriate action before or after failures occur.