Carnegie Mellon University
Pittsburgh, PA 15213
My name is Tudor Dumitraş, and I am a Ph.D. student in the Electrical & Computer Engineering Department of Carnegie Mellon University.
My advisor is Prof. Priya Narasimhan.
Research Interests
- Dependable, Dynamic Upgrades in Distributed Systems
Implementing online software upgrades (changes in the behavior, configuration, code, data or topology of a running application) is one of the most exciting unsolved problems in distributed systems. This functionality is essential for enabling the self-regulating, autonomic management and maintenance of enterprise computer systems.
The biggest challenges are maintaining the existing (and potentially unknown) dependencies between distributed components and services, handling API evolution, performing upgrades that span mutually-distrustful administrative domains, transferring state -- which may require long running data migration and conversion tasks executing in parallel with regular requests for the same data --, assessing and minimizing the impact of upgrades on the running services while improving the value of the infrastructure according to some well-defined metrics and tolerating faults during the upgrading process.
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