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Survivorship Fairy Tales or When 1% Matters
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Nikita Galkin
September 15, 2018
Programming
1
110
Survivorship Fairy Tales or When 1% Matters
Nikita Galkin
September 15, 2018
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Transcript
Survivorship Fairy Tales or When 1% Matters Nikita Galkin
None
Question or feedback: ▰ https://goo.gl/slides/7q7sb7 ▰ Twit with #hlfwdays or
@galk_in ▰ Facebook friendship ▰ Coffee and talk ▰ Beer and dance at after-party 3
4 What is a Highload Project?
I started with the same question one year ago
6 If your infrastructure cannot process incoming requests without degradation...
7 when even 1% of requests is important to business...
Your Project needs Highload optimization methods only when Business needs
this!
Elasticity
Episode I: Nomads
The startup that has not yet started earning money, but
its founder has passed the incubator.
Money?
Cloud credits usage cycle
As long as possible avoid vendor-lock. Herh herh herh.
Episode II: Blockchain Hype
3tps 15tps 65000 tps
Decentralized exchange built on smart contracts that lets you trade
ERC20 tokens against Ethereum.
Hybrid blockchain application stores data at blockchain and database. Herh
herh herh.
None
None
So, Where is the load?
Attack of the ShitCoders
Mistakes: ▰ Single process for REST and blockchain event processing
▰ Wrong data layer implementation ▻ string instead numbers ▻ without foreign keys usage ▰ Startup and shutdown flows aren’t designed ▰ There are not any code style ▰ No input data validation ▰ No DDoS protection 23
Make me correct orders list, even one traded order with
market price will break the product.
Auto recovering should highload project have. Hmmmmmm.
Episode III: News
Canadian news portal with a long history for different topics.
Main traffic goes from Google.
Important in content projects, page speed is.
Add indexes for new feature?
None
Episode IV: Development with pleasure?
Mobile game company with monetization "pay up or wait".
None
None
DevOps and QA Engineers arrived
Do you know our marketologist?
Expensive, acquiring new users is, so care about existing ones.
Episode V: Holy Cow
Ukrainian product company which sells software for developers. Long years
ago founder wrote the metrics system, but...
None
Environment variable for production everywhere
Pollute your business analytics, do not. Yes, hmmm.
Episode VI: Be ready
Product company helps to understand your employees behavior.
None
Sometimes, you need to try new things
Never predict, we can, so try and measure
48 Why is important to know elasticity for your Project?
Trust + Understanding = Influence
50 May the Force be with you