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
Introduction of Skyline
Search
Takumi Sakamoto
July 12, 2013
Programming
0
180
Introduction of Skyline
Takumi Sakamoto
July 12, 2013
Tweet
Share
More Decks by Takumi Sakamoto
See All by Takumi Sakamoto
Building Data Pipelines with Apache Airflow
takus
3
2.8k
The Missing Pieces of Amazon ECS (for me)
takus
2
910
マイクロサービスとSRECon / #microserv
takus
14
4.5k
Slack と Incident Command System / #slackbook
takus
2
700
Why and How SmartNews uses SaaS?
takus
2
3k
スマートニュースの世界進出を支えるログ解析基盤 #jawsdays #tech
takus
64
18k
SmartNews と Datadog
takus
6
3.9k
ぜんぶ AWS でやらないワケ
takus
55
110k
Velocity Conference 2013 Report
takus
2
1.7k
Other Decks in Programming
See All in Programming
CEDEC 2025 『ゲームにおけるリアルタイム通信への QUIC導入事例の紹介』
segadevtech
2
740
kiroでゲームを作ってみた
iriikeita
0
140
画像コンペでのベースラインモデルの育て方
tattaka
3
1k
Claude Code と OpenAI o3 で メタデータ情報を作る
laket
0
110
新しいモバイルアプリ勉強会(仮)について
uetyo
1
250
中級グラフィックス入門~効率的なメッシュレット描画~
projectasura
4
2.4k
MCPで実現できる、Webサービス利用体験について
syumai
7
2.4k
Dart 参戦!!静的型付き言語界の隠れた実力者
kno3a87
0
160
CIを整備してメンテナンスを生成AIに任せる
hazumirr
0
510
AIに安心して任せるためにTypeScriptで一意な型を作ろう
arfes0e2b3c
0
330
一人でAIプロダクトを作るならAIにはもっと働いてもらいたい / I want AI to work harder
rkaga
3
190
Streamlitで実現できるようになったこと、実現してくれたこと
ayumu_yamaguchi
2
270
Featured
See All Featured
Product Roadmaps are Hard
iamctodd
PRO
54
11k
How to Think Like a Performance Engineer
csswizardry
25
1.8k
Six Lessons from altMBA
skipperchong
28
3.9k
Mobile First: as difficult as doing things right
swwweet
223
9.9k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
332
22k
Evolution of real-time – Irina Nazarova, EuRuKo, 2024
irinanazarova
8
870
Adopting Sorbet at Scale
ufuk
77
9.5k
Building an army of robots
kneath
306
45k
Dealing with People You Can't Stand - Big Design 2015
cassininazir
367
26k
Faster Mobile Websites
deanohume
308
31k
Why Our Code Smells
bkeepers
PRO
337
57k
Site-Speed That Sticks
csswizardry
10
750
Transcript
Introduction of Skyline @takus monitoring casual #4 2013.07.12
Velocity 2013 • Web Performance & Operations Conference • Great
talks • Great people • Great culture
My LT Talk at Velocity • 3 Popular Ops Tools
in Japan • serverspec, growthforecast, fluentd • Uploaded on youtube :-( • http://www.youtube.com/watch? v=bRYuBQyG5Sw
Some Positive Feedbacks
The Most Interesting Talk • Avoiding Performance Regression at Twitter
• fight against perf regression in an automated fashion • http://ameblo.jp/principia-ca/ entry-11561132297.html
Today’s Topic
Background • Etsy deploys their app 30+ times per day
• Optimize for quick recovery by anticipating problems, instead of fearing human error • Can’t fix what you don’t measure! • If it moves, graph it
Too Many Graphs • 250,000+ dashboards • If a graph
spikes and no one is watching, does it really spike? • There are things we do not know we don’t know.
Kale • Skyline • Detect unknown anomalies • Oculus •
Detect unknown correlations http://codeascraft.com/2013/06/11/introducing-kale/
None
Architecture Horizon Horizon Horizon Redis Analyzer Manager Analyzer Analyzer Analyzer
Assign Metrics Keys Get Metrics Keys Fetch Timeseries Metrics
Horizon • Listeners • Receiving metrics & store them to
queue • Workers • Inserting metrics to redis with Messagepack • Roombas • Purging metrics in Redis at a regular interval
Analyzer • Assigning Redis keys to each process process •
decode from Messagepack • run the detection algorithm
How to Detect Anomalies? • Consensus model • If the
majority of algorithms agree, the metric will be classified as anomalous • Use your own algorithm for each application • as long as you return a boolean, you can add any sort of algorithm you like
Basic Algorithm • A metric is anomalous if its latest
datapoint is over three standard deviations above its moving average
Anomaly?
Conclusion • Etsy monitors 250,000+ graphs • If a graph
spikes and no one is watching, does it really spike? • Skyline • detects unknown anomalies • consensus with any algorithms you like