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
The Path Towards Simplifying Consistency in Dis...
Search
Caitie McCaffrey
April 24, 2017
Technology
1
310
The Path Towards Simplifying Consistency in Distributed Systems
Caitie McCaffrey
April 24, 2017
Tweet
Share
More Decks by Caitie McCaffrey
See All by Caitie McCaffrey
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
331
21k
Argus Papers We Love
caitiem20
13
1.2k
The Verification of a Distributed System
caitiem20
22
2.2k
We Hear You Like Papers: Eventual Consistency
caitiem20
14
800
The Verification of a Distributed System
caitiem20
12
770
The Verification of a Distributed System
caitiem20
6
770
A Brief History of Distributed Programming: RPC
caitiem20
31
6.6k
Building Scalable Stateful Services
caitiem20
12
1.6k
Papers we Love PDX
caitiem20
2
1.3k
Other Decks in Technology
See All in Technology
サーバレス、コンテナ、データベース特化型機能をご紹介。CloudWatch をもっと使いこなそう!
o11yfes2023
0
150
Стильный код: натуральный поиск редких атрибутов по картинке. Юлия Антохина, Data Scientist, Lamoda Tech
lamodatech
0
680
DuckDB MCPサーバーを使ってAWSコストを分析させてみた / AWS cost analysis with DuckDB MCP server
masahirokawahara
0
1.2k
こんなデータマートは嫌だ。どんな? / waiwai-data-meetup-202504
shuntak
6
1.9k
Amazon S3 Tables + Amazon Athena / Apache Iceberg
okaru
0
260
.mdc駆動ナレッジマネジメント/.mdc-driven knowledge management
yodakeisuke
24
12k
新卒エンジニアがCICDをモダナイズしてみた話
akashi_sn
1
120
Recap of Next - Google Cloud で実践する クラウドネイティブ最前線 / The Frontlines of Cloud-Native with Insights from Google Cloud
aoto
PRO
1
100
ワールドカフェI /チューターを改良する / World Café I and Improving the Tutors
ks91
PRO
0
110
50人の組織でAIエージェントを使う文化を作るためには / How to Create a Culture of Using AI Agents in a 50-Person Organization
yuitosato
6
3.4k
AWS全冠芸人が見た世界 ~資格取得より大切なこと~
masakiokuda
5
5.6k
AIコーディングの最前線 〜活用のコツと課題〜
pharma_x_tech
1
330
Featured
See All Featured
Fashionably flexible responsive web design (full day workshop)
malarkey
407
66k
Optimizing for Happiness
mojombo
377
70k
The World Runs on Bad Software
bkeepers
PRO
67
11k
For a Future-Friendly Web
brad_frost
176
9.7k
A designer walks into a library…
pauljervisheath
205
24k
Facilitating Awesome Meetings
lara
54
6.3k
Building a Modern Day E-commerce SEO Strategy
aleyda
40
7.2k
The Art of Delivering Value - GDevCon NA Keynote
reverentgeek
13
1.4k
Put a Button on it: Removing Barriers to Going Fast.
kastner
60
3.8k
The Web Performance Landscape in 2024 [PerfNow 2024]
tammyeverts
5
520
Fontdeck: Realign not Redesign
paulrobertlloyd
83
5.5k
Principles of Awesome APIs and How to Build Them.
keavy
126
17k
Transcript
The Path Towards Simplifying Consistency in Distributed Systems
Caitie McCaffrey Distributed Systems Engineer caitiem.com @caitie
Distributed Systems Engineer Feral Concurrency Control Programmer Caitie McCaffrey
2015
2015 “Application-level Mechanisms for maintaining database integrity”
Halo 4 Statistics Service Halo 4 Statistics Service Record &
Aggregate Statistics From Every Multiplayer Halo Game a User Plays
Halo 4 Statistics Service
Observability at Twitter Make Dashboards & Alerts Always Available
Cmd Line Tool Viz / Dashboad Alerting Svc Cuckoo-Read Cuckoo-Write
Indexing Svc Relay Svc Twitter Front End Twitter Svc Twitter Statsite Twitter Svc Twitter Svc Scribe Collection Agent HDFS Manhattan Database Public Cloud Observability at Twitter
Notify Users When We Receive Abuse Reports
Notify Users If An Action is Taken
Report Events Stream Modification Events Stream Enrollment Events Stream Listener
Service Daemons Service Executor Service Notification Events Stream Notification Service Manhattan Macaw
Feral Concurrency Control
Service Service Service Monoliths
The Rise of NoSQL
None
Microservices
State of Affairs
Linearizable Sequential Causal Pipelined Random Access Memory Read Your Write
Monotonic Read Monotonic Write Write From Read Consistency Models
None
None
None
None
None
None
Can We Do Better?
Finance & Accounting
VisiCalc 1979
1983 Lotus 123
None
1987 Excel
None
& Standardization Computer Aided Computation
Standardization for Consistency in Distributed Systems
1988
1988 “We believe the form of communication that is needed
is remote procedure call with at- most-once semantics”
1988 “An adequate language must provide a modular, reasonably automatic
method for achieving consistency ”
Branch B Account 789: $250 Branch A Account 123 :
$100 Account 456: $50 SubAction: Deposit (123, 50) Transfer Action SubAction: Withdraw(789, 50) Transfer Deposit Withdraw enter topaction coenter action branchA.Deposit(123, 50) action branchB.Withdraw(789, 50) end end
What about Spanner?
2015
2015 “The biggest barrier…is that consistency mechanisms must integrate across
many stateful services”
Microservices
CRDTs * Stolen from Chris Meiklejohn in practice
CRDTs * Stolen from Chris Meiklejohn in practice
There Is No One Size Fits All Consistency Model
Mixed Consistency Data Stores Manhattan
None
Computer Aided Computation for Consistency in Distributed Systems
2016
Bank Application Bank Account must be > 0 Deposit Money
Withdrawal Money
‘Cause I’m Strong Enough: Reasoning About Consistency Choices in Distributed
Systems
Define Invariants & Actions Deposit Money Withdrawal Money Determine Consistency
Required Bank Account > 0 Eventual Consistency Strong Consistency Code Generation?
& Standardization Computer Aided Computation
Thank you @caitie