Eric Rubin-Smith
Arlington, Virginia, United States
688 followers
500+ connections
About
I have specific, large-scale project experience in:
* Founding start-up…
Activity
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For the fourth year in a row, Matt Lehwess and I can't wait to meet you at re:Invent 2024, and dive into all new VPC features, reference…
For the fourth year in a row, Matt Lehwess and I can't wait to meet you at re:Invent 2024, and dive into all new VPC features, reference…
Liked by Eric Rubin-Smith
Experience
Education
Licenses & Certifications
Publications
Patents
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Asynchronous consistent snapshots in a distributed system
Issued US-11892975-B1
An easy-to-operationalize way to take a consistent snapshot of a distributed system. Individual components of the system take local snapshots of themselves whenever they want -- and then an agent that wants to assemble a consistent snapshot from the local snapshots can do so by asynchronously gathering the local snapshots.
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Network address allocation management using prefix allocation trees with asynchronous workflows
Issued US-11611529-B1
Storing and allocating CIDRs in a horizontally scalable way using distributed databases like DynamoDB. Includes features for creating consistent snapshots in the face of concurrent mutations, and indexing arbitrary user attributes on allocations and CIDRs.
Other inventorsSee patent -
Distributed network address allocation management
Issued US-11575647-B1
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Monitoring internet protocol address utilization to apply unified network policy
Issued US-11483282-B1
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Network address allocation management using prefix allocation trees
Issued US-11356409-B1
A way to store and allocate CIDRs in a distributed hash table like DynamoDB.
Other inventorsSee patent
Courses
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Algorithms
COSC025
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American Music
MUS001
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Beginning Spanish
SPAN001
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Computer Architecture
COSC037
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Computer Networks
COSC078
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Current Trends and Ethical Issues in Computer Science
COSC099
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Design and Implementation of Programming Languages
COSC048
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Discrete Math in Computer Science
COSC021
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English Literature and Composition
ENGL005
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Historical Linguistics
LING015
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History of the English Language
LING018
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International Politics
GOVT005
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Introduction to Physics I: Honors
PHYS015
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Introductory Linguistics
LING001
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Introductory Psychology
PSYC001
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Introductory Spanish
SPAN002
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Language Study Abroad: Intermediate Spanish
SPAN003
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Language Study Abroad: Mexican History
SPAN006
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Language Study Abroad: Mexican Literature
SPAN005
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Linear Algebra
MATH024
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Semantics and Pragmatics
LING023
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Seminar: College Learning
EDUC007
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Software Design and Implementation
COSC023
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Spanish Literature
SPAN009
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Stars and the Milky Way
ASTR015
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Structure and Interpretation of Computer Programs
COSC018
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Theoretical Computer Science: Distributed Algorithms
COSC085
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Theory of Computation
COSC049
Projects
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Implement Consensus on a U.S. Navy Guided Missile Destroyer
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A U.S. Navy Guided Missile Destroyer, or DDG, has multiple computers communicating over an IP network. Among other tasks, they control the flow of water through the ship (for the purposes of fighting fires) by opening and closing valves.
If multiple computers attempt to change a valve's state concurrently, then the valve breaks and lives could be lost.
Conversely, if no computer is able to change a valve's state, then seamen will be unable to fight fires effectively and lives…A U.S. Navy Guided Missile Destroyer, or DDG, has multiple computers communicating over an IP network. Among other tasks, they control the flow of water through the ship (for the purposes of fighting fires) by opening and closing valves.
If multiple computers attempt to change a valve's state concurrently, then the valve breaks and lives could be lost.
Conversely, if no computer is able to change a valve's state, then seamen will be unable to fight fires effectively and lives could be lost.
So the computers must implement a distributed protocol to determine which computer is the owner of the valves. The computers must reach a joint decision even in the face of torpedos destroying some percentage of them during a run of the protocol.
The task was to address the above constraints by writing a C module that would provide an API to a Tcl application.
When I was handed the task, I identified this as the Consensus Problem from distributed algorithms, and implemented a solution provided in the academic literature by Tushar Chandra and Sam Toueg in 1996.
Languages
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Spanish
Limited working proficiency
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English
Native or bilingual proficiency
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