Automated Planning of System Rollback in Declarative IT System Update.
2019
The automation of system management has been expanding, and there has been interest lately in an automated workflow generation that automatically generates the workflows of system updates. However, because these automation technologies operate under the assumption that systems work in accordance with their underlying system model, they are not good at handling unexpected behaviors of target systems.In this paper, we propose a way to incorporate unexpected handling into our declarative system update mechanism by automatically generating a "recovery workflow" to roll back a target system in the event of abnormal system stops. We evaluate our tool through a practical three-tier architecture system operating a simple Web service, and found that our method can complete generation of a recovery workflow in one second, and roll back the system from all system states.
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