  In the industrial Internet of Things domain, applications are moving from the
Cloud into the edge, closer to the devices producing and consuming data. This
means applications move from the scalable and homogeneous cloud environment
into a constrained heterogeneous edge network. Making edge applications
reliable enough to fulfill Industrie 4.0 use cases is still an open research
challenge. Maintaining operation of an edge system requires advanced management
techniques to mitigate the failure of devices. This paper tackles this
challenge with a twofold approach: (1) a policy-enabled failure detector that
enables adaptable failure detection and (2) an allocation component for the
efficient selection of failure mitigation actions. We evaluate the parameters
and performance of our failure detection approach and the performance of an
energy-efficient allocation technique, and present a vision for a complete
system as well as an example use case.
