FT2R2Cloud: Fault tolerance using time-out and retransmission of requests for cloud applications

Ever increasing demand of distributed computing and Internet based services have become part and parcel of human daily life to perform activities. Service failures occur due to failure of processing elements, storage, communication system, undetected/unexpected bugs in the service. In interactive applications if a service takes more than the stipulated time or fail to meet hard and soft constraints as part of its response time then such scenarios are considered as service failure. In this paper we propose algorithm to rank software components based on their reliability taking into account number of times a service time out and number of times it is being invoked by other software components. In this work we measure the reliability of the software components in terms of number of responses as their throughput.