Dependable, online upgrades in enterprise systems

Authors:
Tudor Dumitras
Affiliations:
Carnegie Mellon University, Pittsburgh, PA, USA
Venue:
Proceedings of the 24th ACM SIGPLAN conference companion on Object oriented programming systems languages and applications
Year:
2009

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Abstract

Software upgrades are unreliable, often causing downtime or data loss. I propose Imago, an approach for removing the leading causes of upgrade failures (broken dependencies) and of planned downtime (data migrations). While imposing a higher resource overhead than previous techniques, Imago is more dependable and easier to use correctly.