Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
High Availability
Search
Saša Jurić
April 23, 2015
Programming
5
450
High Availability
ElixirConf Europe
Saša Jurić
April 23, 2015
Tweet
Share
More Decks by Saša Jurić
See All by Saša Jurić
Such Great Heights, Code BEAM Lite, Amsterdam 2018
sasajuric
0
180
Simplifying systems with Elixir - Belgrade
sasajuric
3
450
Simplifying systems with Elixir
sasajuric
2
570
Metagrokking Elixir
sasajuric
4
290
Solid Ground
sasajuric
15
1.2k
Solid Ground
sasajuric
3
880
Elixir - valentine edition
sasajuric
0
130
What's the fuss about Phoenix?
sasajuric
2
1.1k
Phoenix
sasajuric
1
230
Other Decks in Programming
See All in Programming
Back to the Future: Let me tell you about the ACP protocol
terhechte
0
130
CI_CD「健康診断」のススメ。現場でのボトルネック特定から、健康診断を通じた組織的な改善手法
teamlab
PRO
0
190
Pull-Requestの内容を1クリックで動作確認可能にするワークフロー
natmark
2
480
技術的負債の正体を知って向き合う / Facing Technical Debt
irof
0
120
AI Coding Meetup #3 - 導入セッション / ai-coding-meetup-3
izumin5210
0
640
uniqueパッケージの内部実装を支えるweak pointerの話
magavel
0
940
フロントエンド開発に役立つクライアントプログラム共通のノウハウ / Universal client-side programming best practices for frontend development
nrslib
7
3.9k
iOSエンジニア向けの英語学習アプリを作る!
yukawashouhei
0
180
Go言語の特性を活かした公式MCP SDKの設計
hond0413
1
200
Goで実践するドメイン駆動開発 AIと歩み始めた新規プロダクト開発の現在地
imkaoru
4
760
monorepo の Go テストをはやくした〜い!~最小の依存解決への道のり~ / faster-testing-of-monorepos
convto
2
430
育てるアーキテクチャ:戦い抜くPythonマイクロサービスの設計と進化戦略
fujidomoe
1
160
Featured
See All Featured
Code Reviewing Like a Champion
maltzj
525
40k
Site-Speed That Sticks
csswizardry
11
880
How to Create Impact in a Changing Tech Landscape [PerfNow 2023]
tammyeverts
54
3k
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
32
1.6k
Testing 201, or: Great Expectations
jmmastey
45
7.7k
The Pragmatic Product Professional
lauravandoore
36
6.9k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
132
19k
Building Applications with DynamoDB
mza
96
6.6k
It's Worth the Effort
3n
187
28k
Documentation Writing (for coders)
carmenintech
75
5k
For a Future-Friendly Web
brad_frost
180
9.9k
The World Runs on Bad Software
bkeepers
PRO
71
11k
Transcript
iex(1)> high_availability @sasajuric aircloak.com
Erlang (the language) Elixir LFE Erlang VM (BEAM)
highly_available ≈ works_almost_always
optional?(highly_available) # false
easy?(highly_available) # false
None
highly_available do # the code here magically works end #doesntworklikethat
fault-tolerance scalability + responsiveness = high availability
A B D E F C
send(pid, message) A B message = receive ...
def loop(state) do receive do message -> new_state = handle(state,
message) loop(new_state) end end
bank account balance {:deposit, amount} {:withdraw, amount} :balance amount
OS process or thread Erlang process
db connection background job request handler state request handler request
handler request handler request handler request handler state state state background job background job background job db connection db connection db connection
A B C D E F
A exit message B C D E F
supervisor worker worker
S S S W W S W W W S
W W
scheduler scheduler scheduler scheduler CPU CPU CPU CPU VM
VM VM VM VM VM
VM send(pid, message) VM 1 send(pid, message) VM 2
shared-nothing concurrency process crash propagation + some VM magic =
fault tolerance scalability responsiveness
None
3rd party data source transform data push server browsers bets
validation
Data transformation 1.Receive TCP stream" 2.Assemble XML messages" 3.Update the
model" 4.Store to database" 5.Serialize the model" 6.Dispatch
receive stream assemble messages update model store to database serialize
data dispatch
receive stream assemble messages update model store to database serialize
data dispatch message 6 message 5 message 4 message 3 message 2 message 1
receive stream assemble messages update model store to database serialize
data dispatch
storing to database queuing bet odds storing bet odds
match 1 match 3 match 2
update model serialize data dispatch match 1 match 3 match
2
None
None
None
None
None