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Henry Robinson
@HenryR
, 8 tweets, 3 min read Read on Twitter
This turned into a great discussion. I was looking for resources I could give to someone designing their first few systems; advice and suggestions about how to structure their thoughts, critique their designs, and iterate.

Some of the highlights below.

Several people mentioned the, new to me, discipline of Non-Abstract Large System Design as practiced at Google.

Is it possible?
Can we do better?

Then

Is it feasible?
Is it resilient?

landing.google.com/sre/workbook/c…

(Say what you want about how Google sometimes acts like they've solved all of engineering, at least it's an ethos.)
Slides as well!

Everyone - and I mean EVERYONE - loves @martinkl 's Designing Data Intensive Applications

dataintensive.net
And the Art of Open Source Applications book is surprisingly new to lots of people. The chapter on distributed systems is an insightful case study:

aosabook.org/en/distsys.html
There were fewer papers recommended than I might have thought, but Brewer's "Lessons from Giant Scale Services" is a classic cs.berkeley.edu/~brewer/papers…

.... and I conclude this brief highlight tour with another plug for one of my favourite practitioner papers of all time: "On Designing and Deploying Internet-Scale Services" by James Hamilton. All those bullet points are your design's final checklist.

usenix.org/legacyurl/desi…
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Henry Robinson
@HenryR
Ok, perhaps let's pump the brakes for a second. Systems and database engineering isn't dead; this paper didn't just replace Postgres with a GPU and a copy of the deep learning book. (1/n)

arxiv-vanity.com/papers/1712.01…
I mean, what's been done here is fascinating (partly in its simplicity). Replacing B-Trees - which are functions from keys to ranges on disks - with a learned function is kind of cool.
The fact that the learned representation is more compact is very neat. But also it's not really a surprise that, given the entire dataset, we can construct a more compact function than a B-tree which is *designed* to support efficient updates.
Read 10 tweets
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Henry Robinson
@HenryR
Great questions! Let me see if I can answer without making a hash of things. See thread below.
1. For CAP, we're considering only one object. In that case, serializability is a weaker property than linearizability (Not 'real-time').
2. 'Strict serializability', for one object, is the same as linearizability.
Read 7 tweets
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Henry Robinson
@HenryR
0. Just a reminder for anyone seeing claims that Cloud Spanner beats the CAP theorem:
1. CAP has always said only one thing: that there is always a particular network failure that forces you to give up either C or A.
2. It has nothing at all to do with how likely that failure mode is. The failure is system-specific.
Read 10 tweets

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Niall Gooch
@niall_gooch
Great example here of why, if Remainers want to reach out to cultural conservatives, they should probably ask for advice from some actual cultural conservatives.
(I am available for a very reasonable fee.)
My first piece of advice would be, "Don't just repeat the same well-meaning lies about British history that helped to antagonise people against elite projects in the first place."
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HootHootBerns 🌹🐦
@HootHootBerns
Great, another sneaky article I'm gonna have to drag. Excuse me while I get my laptop and make a thread of this mess.

nymag.com/intelligencer/…
First, we have some of the opening paragraphs trying to push some kind of implication he's got some kind of "yuge" ego.

"And he still thinks he should be president. He doesn't say this out loud, exactly." Umwut?
Not to mention he "continues to get angry at Establishment liberals." Well, as he damn well should, but why is Establishment capitalized? Get ready for them to paint a bit of a contradictory image later.
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Sean ⭐⭐⭐
@Cordicon
Have I researched JFK Jr being alive? Yes. Started the Fusca search.

I’ve also researched flat earth, hollow earth, comb earth, no earth, round earth. Ive researched everything I could find. Thats why I say at the end I believe NOTHING. ZERO. All there is, is faith.

#Thoughts
If I could give advice to anyone in the search of truth. Don’t be hungry, don’t be desperate, don’t get attached. Be will to alter your perception of reality. Reality is perception. Glass full or half full? Nothing is as it seems.

Have faith. Find peace, Find love

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If you want to look in the right place than this place they call Antartica and they create the image of it. hides the last truths on earth.

God Bless.

#Thoughts
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Erica Buddington
@ericabuddington
It’s so hard to make real friends at 30. Life pulls us away from one another. I’ve had friends move to different states or disappear from my recent texts. But I’m growing and I’m realizing that it’s all a part of my trajectory. ericabuddington.com/blog
I became really close with someone during my first few years of teaching. After 2 years, she moved in with her boyfriend. We were both in relationships and this mean double dating, but less one-on-one. A few years after that she moved to Hoboken. Eh, no biggie...
It put a strain on our relationship but we still saw each other once a month. & then she suddenly moved to San Diego. That was it. We spoke like twice a year. She was the first of a long line of friends to move away or on.
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Justin C Scott 🌺
@iamjustincscott
*Clears Throat*

How You Are Performing #Magick Everyday and Don’t Even Realize It.

OR

#Manifestation 101.

(THREAD)
For any of you more practical folks reading who may be skeptical due to my use of the word “Magick”.

This will not be a “wooey” thread.

It will better your life.

And it will CERTAINLY give you an UNFAIR ADVANTAGE if acted upon (looking at you @ipb_media).

Keep reading.
First things first, let me clarify that I’m using the word Magick as defined by Aleister Crowley.

#Magick - The Science and Art of causing change to occur in conformity with one's will.
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Josh Russell
@josh_emerson
Looking through this NBC data and using it to confirm a few things.
I can point you to at least 300 "american" internet research agency accounts that are live right now that twitter missed.

#RussianBots #Russiannbcnews.com/tech/social-me…gbquNiCcd2
These are 3 accounts from the list congress got.
Here are some sample tweets from the "new" accounts twittecTCCxyrZEP
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