Aleksey Charapko (@alekseycharapko) 's Twitter Profile
Aleksey Charapko

@alekseycharapko

Assistant professor of computer science @UofNH. Interested in everything distributed/cloud/edge. Metastable failures

ID: 423137934

linkhttp://charap.co calendar_today28-11-2011 04:03:52

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2,2K Followers

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Aleksey Charapko (@alekseycharapko) 's Twitter Profile Photo

Academic Chat with Murat and Aleksey: 5 Cs of the Invisible Curriculum. I and Murat Demirbas (Distributolog) talk about PhD, academia and skills, traits and qualities for success in research. charap.co/academic-chat-… youtu.be/u9dQDHArA-I

Phil Eaton (@eatonphil) 's Twitter Profile Photo

Staying up to date with database / distributed systems research, unordered: - CMU database seminar - Aleksey Charapko paper reading group - Software Internals discord - DatabaseDevelopment subreddit - Database Internals discord (databass . dev) - PVLDB twitter - Murat Demirbas

Aleksey Charapko (@alekseycharapko) 's Twitter Profile Photo

Murat and Aleksey Read Papers: "Barbarians at the Gate: How AI is Upending Systems Research" Here we discuss this fun paper and add a bit of our skepticism on AI upending research and what it means for community. youtu.be/bE9Ysn9hKUU

Aleksey Charapko (@alekseycharapko) 's Twitter Profile Photo

My TLDL is here: charap.co/murat-and-alek… I like that ADRS will force thinking about "evaluators" a lot more, which means thinking about specs, constraints, expectations, etc. But it is also the hard part of research. Mistakes will guide LLMs to create brittle solutions

Aleksey Charapko (@alekseycharapko) 's Twitter Profile Photo

"Lambda is experiencing function invocation errors because an internal subsystem was impacted by the network load balancer health checks." Oh AWS... slow/inefficient error or exception handling creates some interesting metastable failures.

Aleksey Charapko (@alekseycharapko) 's Twitter Profile Photo

"We are also experiencing significant improvements to Lambda invocation errors" Oh AWS... we are you improving errors? you should fix them!

Akshat Vig (@akshatvig) 's Twitter Profile Photo

Some systems keep growing not because they were perfect, but because they kept listening to the developers. In our QConSF Keynote, Andrew Davidson and I will reflect on how open collaboration and curiosity can turn frustration into progress and how trust, built incrementally,

Aleksey Charapko (@alekseycharapko) 's Twitter Profile Photo

After a while, Murat Demirbas (Distributolog) and I read another nice paper together: "Mitigating Application Resource Overload with Targeted Task Cancellation" from the recent SOSP. It looks at killing "blocker" tasks that hog resources to improve performance. youtu.be/mCmcQgwho7U

Murat Demirbas (Distributolog) (@muratdemirbas) 's Twitter Profile Photo

We introduce LeaseGuard: a Raft-specific lease protocol with a precise spec and fast recovery after crashes. By leveraging Leader Completeness, the log itself becomes the lease, avoiding the need to maintain extra protocol vars/messages. Using log knowledge, LeaseGuard

Aleksey Charapko (@alekseycharapko) 's Twitter Profile Photo

On Metastable Failures and Interactions Between Systems. Here are some thoughts on metastable failure feedback loops and trying to avoid them charap.co/on-metastable-…

On Metastable Failures and Interactions Between Systems.
Here are some thoughts on metastable failure feedback loops and trying to avoid them
charap.co/on-metastable-…
Murat Demirbas (Distributolog) (@muratdemirbas) 's Twitter Profile Photo

[new blog post] Are Database System Researchers Making Correct Assumptions about Transaction Workloads? muratbuffalo.blogspot.com/2026/01/are-da…

Aleksey Charapko (@alekseycharapko) 's Twitter Profile Photo

The “Cloudspecs: Cloud Hardware Evolution Through the Looking Glass” paper was the first one that Murat Demirbas (Distributolog) and I read together in 2026. It was a short but interesting read that discusses 10 years of hardware evolution at AWS charap.co/murat-and-alek… youtu.be/9Lw4GbKbmyw

ACM SoCC (@acmsocc) 's Twitter Profile Photo

The first of two SoCC submission deadlines is coming up soon! First abstract deadline: February 6, 2026 First submission deadline: February 13, 2026 Submission site: socc26.hotcrp.com Call for papers: acmsocc.org/2026/papers.ht…