  In this paper, we describe the motivation, innovation, design, running
example and future development of a Fault Inject Tool (FIT). This tool enables
controlled causing of cloud platform issues such as resource stress and service
or VM outages, the purpose being to observe the subsequent effect on deployed
applications. It is being designed for use in a DevOps workflow for tighter
correlation between application design and cloud operation, although not
limited to this usage, and helps improve resiliency for data intensive
applications by bringing together fault tolerance, stress testing and
benchmarking in a single tool.
