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rain cloud - the most focussed weather device yet - Founded by Tom Metcalfe, Martin Charlier, Devraj Joshi
rain cloud is the most focussed weather device yet. Founded by Tom Metcalfe, Martin Charlier, Devraj Joshi. We're currently in stealth mode, but you can sign up to receive updates when we're ready to share any.
ui  design  hardware  iot  weather  prototype  product  calm  ubicomp 
10 weeks ago by andrewn
Keeping CALM: when distributed consistency is easy | the morning paper
Keeping CALM: when distributed consistency is easy Hellerstein & Alvaro, arXiv 2019 The CALM conjecture (and later theorem) was first introduced to the world in a 2010 keynote talk at PODS. Behind its simple formulation there’s a deep lesson to be learned with the power to create ripples through our industry akin to the influence…
adrian_colyer  software_architecture  distributed_systems  CALM  databases  coordination 
march 2019 by mreinbold
Keeping CALM: when distributed consistency is easy | the morning paper
When it comes to high performing scalable distributed systems, coordination is a killer. It’s the dominant term in the Universal Scalability Law. When we can avoid or reduce the need for coordination things tend to get simpler and faster.
distributed  architecture  data  consistency  Calm  kiss  simple  fast  via:popular 
march 2019 by rauschen
Applied Monotonicity: A Brief History of CRDTs in Riak
"Our work is inspired by a problem we observed in LVars (Kuper and Newton 2013), Lasp, and BloomL: functions must be monotonic (or homomorphic, a special case of monotonicity) to ensure both correctness and convergence of the system; in each of these systems functions are assumed to be correctly implemented and annotated accordingly. As we demonstrated in this article, *this is very difficult to get right*. Not only is monotonicity difficult to get right in practice, for systems that use monotonicity, they must be high-performance and cheap. In the case of CRDTs, the Observed-Remove Set was much too expensive to actually use in practice, but it’s easy to implement and reason about. For any monotonic solution to gain adoption, it essential that the solutions be both easy to use and not prohibitively expensive."
crdt  riak  bloom  calm  2019  math  piperesearch 
march 2019 by mechazoidal
The Radical Calm of Alex Honnold - Men's Journal
Quote: "But Alex seems to treat his emotions like a car stereo. When the music gets too loud, he just turns down the dial and keeps driving."
emotional-intelligence  calm  control  emotions 
march 2019 by ajohnson1200
Anna: A KVS for any scale | the morning paper
The Berkeley minds behind CALM, Bloom, and others create a prototoype KVS to rival Redis. Note that they ported the Bloom lattice operators to C++!

See their blog post for more: https://rise.cs.berkeley.edu/blog/anna-kvs/

Also note their use of ZMQ: "fast asynch messaging across cores and nodes—we got this from a lightweight usage"
piperesearch  calm  bloom  zmq  databases  programming 
march 2019 by mechazoidal

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