Achieving High Availability at the Application Level in the Cloud

Cloud computing is an emerging paradigm that is gaining more attention by the day. Even with the increased number of applications that are being deployed in the Cloud, the question remains, is the Cloud ready to host applications adhering to telecommunication-grade requirements? In this paper we target the issue of the high-availability (HA) requirement in the Cloud from an application perspective. We present an approach that enables the dynamic incorporation of HA features into the deployed applications, which raises the discussion about the feasibility of having HA-as-a-Service, per application, in the Cloud.