Tammy Bryant Butow

Principal SRE at Gremlin


An exploration of black holes: strange failure modes
Wednesday 17:10 - 17:55
chaos engineering
site reliability engineering
infrastructure engineering

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In this presentation, Tammy will share the many wonders of blackholes - not in space - but in computer science. We'll explore what happens when requests never make it out of a blackhole, how this impacts observability, and what we can learn from blackhole-related failures. Tammy will explain how you can use blackholes to learn how to make systems more reliable. We'll send requests into blackholes on purpose and observe the consequences in detail. This session will be a technical deep dive on strange failure modes that are unexpected and surprising.


Tammy is a Principal SRE at Gremlin where she works on Chaos Engineering, the facilitation of controlled experiments to identify systemic weaknesses. Gremlin helps engineers build resilient systems using their control plane and API. Tammy previously led SRE teams at Dropbox responsible for Databases and Storage systems used by over 500 million customers. Prior to this Tammy worked at DigitalOcean and one of Australia's largest banks in Security Engineering, Product Engineering and Infrastructure Engineering.