Submit Search
Upload
Tokyo videotech#2 nishimuta
•
Download as PPTX, PDF
•
0 likes
•
187 views
K
KentaroNishimuta
Follow
Tokyo VideoTech#2で発表した資料です。
Read less
Read more
Engineering
Report
Report
1 of 36
Download now
Recommended
2024 State of Marketing Report – by Hubspot
2024 State of Marketing Report – by Hubspot
Marius Sescu
Everything You Need To Know About ChatGPT
Everything You Need To Know About ChatGPT
Expeed Software
Product Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage Engineerings
Pixeldarts
How Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental Health
ThinkNow
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
marketingartwork
Skeleton Culture Code
Skeleton Culture Code
Skeleton Technologies
PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024
Neil Kimberley
Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)
contently
Recommended
2024 State of Marketing Report – by Hubspot
2024 State of Marketing Report – by Hubspot
Marius Sescu
Everything You Need To Know About ChatGPT
Everything You Need To Know About ChatGPT
Expeed Software
Product Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage Engineerings
Pixeldarts
How Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental Health
ThinkNow
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
marketingartwork
Skeleton Culture Code
Skeleton Culture Code
Skeleton Technologies
PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024
Neil Kimberley
Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)
contently
How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024
Albert Qian
Social Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie Insights
Kurio // The Social Media Age(ncy)
Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024
Search Engine Journal
5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary
SpeakerHub
ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd
Clark Boyd
Getting into the tech field. what next
Getting into the tech field. what next
Tessa Mero
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Lily Ray
How to have difficult conversations
How to have difficult conversations
Rajiv Jayarajah, MAppComm, ACC
Introduction to Data Science
Introduction to Data Science
Christy Abraham Joy
Time Management & Productivity - Best Practices
Time Management & Productivity - Best Practices
Vit Horky
The six step guide to practical project management
The six step guide to practical project management
MindGenius
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
RachelPearson36
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Applitools
12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at Work
GetSmarter
ChatGPT webinar slides
ChatGPT webinar slides
Alireza Esmikhani
More than Just Lines on a Map: Best Practices for U.S Bike Routes
More than Just Lines on a Map: Best Practices for U.S Bike Routes
Project for Public Spaces & National Center for Biking and Walking
Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...
Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...
DevGAMM Conference
Barbie - Brand Strategy Presentation
Barbie - Brand Strategy Presentation
Erica Santiago
Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them well
Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them well
Saba Software
Introduction to C Programming Language
Introduction to C Programming Language
Simplilearn
More Related Content
Featured
How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024
Albert Qian
Social Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie Insights
Kurio // The Social Media Age(ncy)
Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024
Search Engine Journal
5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary
SpeakerHub
ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd
Clark Boyd
Getting into the tech field. what next
Getting into the tech field. what next
Tessa Mero
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Lily Ray
How to have difficult conversations
How to have difficult conversations
Rajiv Jayarajah, MAppComm, ACC
Introduction to Data Science
Introduction to Data Science
Christy Abraham Joy
Time Management & Productivity - Best Practices
Time Management & Productivity - Best Practices
Vit Horky
The six step guide to practical project management
The six step guide to practical project management
MindGenius
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
RachelPearson36
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Applitools
12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at Work
GetSmarter
ChatGPT webinar slides
ChatGPT webinar slides
Alireza Esmikhani
More than Just Lines on a Map: Best Practices for U.S Bike Routes
More than Just Lines on a Map: Best Practices for U.S Bike Routes
Project for Public Spaces & National Center for Biking and Walking
Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...
Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...
DevGAMM Conference
Barbie - Brand Strategy Presentation
Barbie - Brand Strategy Presentation
Erica Santiago
Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them well
Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them well
Saba Software
Introduction to C Programming Language
Introduction to C Programming Language
Simplilearn
Featured
(20)
How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024
Social Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie Insights
Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024
5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary
ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd
Getting into the tech field. what next
Getting into the tech field. what next
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search Intent
How to have difficult conversations
How to have difficult conversations
Introduction to Data Science
Introduction to Data Science
Time Management & Productivity - Best Practices
Time Management & Productivity - Best Practices
The six step guide to practical project management
The six step guide to practical project management
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
Unlocking the Power of ChatGPT and AI in Testing - A Real-World Look, present...
12 Ways to Increase Your Influence at Work
12 Ways to Increase Your Influence at Work
ChatGPT webinar slides
ChatGPT webinar slides
More than Just Lines on a Map: Best Practices for U.S Bike Routes
More than Just Lines on a Map: Best Practices for U.S Bike Routes
Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...
Ride the Storm: Navigating Through Unstable Periods / Katerina Rudko (Belka G...
Barbie - Brand Strategy Presentation
Barbie - Brand Strategy Presentation
Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them well
Good Stuff Happens in 1:1 Meetings: Why you need them and how to do them well
Introduction to C Programming Language
Introduction to C Programming Language
Tokyo videotech#2 nishimuta
1.
肥大化するOVP、 その課題と解決へのアプローチ
2.
はじめに。 私がOVP関連の運用・開発に関して 経験してきたこと、苦労したこと、 こう変えていきたいといった内容になります ネタがなかった。 2
3.
自己紹介 西牟田 健太郎 Jストリームは丸3年 エンジニア?運用が多い 3
4.
“肥大化” 1.
5.
肥大(ひだい、英: hypertrophy) とは、組織あるいは器官が 通常の容積よりも大きさを 増した状態。 5 https://ja.wikipedia.org/wiki/肥大
6.
Not 拡大 ▪ サービスの成長に伴い様々なものが拡大する ▪
顧客数、コンテンツ数、容量、通信流量 ▪ 機能、対象者 ▪ システムの構成が複雑になり、全体把握等が難しくなる →“肥大” 6
7.
“肥大化”するOVP 2.
8.
注意 弊社OVPとは関係あったりなかったりということでお願いします 8
9.
Online Video Platform ▪ エンコードやメタ管理等複数システムが絡んだ プラットフォーム ▪
OVPの肥大化 ≒ システムの肥大化 9
10.
システムの肥大化 ▪ 想定されたキャパシティを超えている ▪ 機能改修の影響範囲が拡大 ▪
ブラックボックス化 うかつに手をだせない 10
11.
ありがちなこと ▪ ドキュメントの更新なし ▪ 人依存 ▪
手動デプロイ ▪ スケールの考慮なし ▪ 改修規模、影響範囲が不透明 ▪ 謎機能 11
12.
ドキュメントの更新なし ▪ 開発当時のまま。 ▪ 古いのか更新されていないのかわからないファイルが サーバおかれている 12
13.
人依存 ▪ 達人 ▪ 過去に在籍した人が作ったメンテナンスできないソース ▪
担当者が辞めると・・・ 13
14.
手動デプロイ ▪ サーバにSSHで入ってコピペ □ dir名_bak □
ファイル名_20190220 14
15.
拡張性なし ▪ スケールアップで耐えられる間は問題なし □ スケールアウトになると・・・ ▪
単純なサーバ追加では不可な場合も 15
16.
改修規模、影響範囲が不透明 ▪ 影響範囲の調査が複雑になる □ ドキュメント不足や知見不足により漏れが発生 ▪
改修範囲が多岐にわたる □ 別機能の改修でソースが被るとより複雑に 16
17.
謎機能 ▪ 誰も使用していない(はずの)機能 ▪ 影響があることに気づきにくい □
バグが見つかるのに時間がかかることも 17
18.
他にも ▪ テストコード無し ▪ STG環境無し 18
19.
事例 3.
20.
Flash → HTML5 ▪
HLS生成 ▪ 配信サーバの刷新 ▪ メタ管理機能の改修 ▪ (プレイヤー開発) 20
21.
HLS生成 ▪ HLS未作成のコンテンツ数が約30万件 ▪ 既存エンコーダだけでは再トランスコードが間に合わない 21
22.
内容 ▪ クラウド連携機能を開発 ▪ 既存の処理に組み込み前提 ▪
設定項目の管理テーブルの改修 ▪ キュー管理機能の改修 ▪ 進捗の手動監視 22
23.
配信サーバの刷新 ▪ 先人スクリプト ▪ ドキュメントが存在しない ▪
メンテナンスされていない 23
24.
内容 ▪ 新規でプラグイン開発 ▪ 既存の機能をもったプラグイン ▪
機能としての見直し無し ▪ 監視スクリプトを組み込み 24
25.
メタ管理機能改修 ▪ 拡張性のないテーブル設計 ▪ 追加項目に非対応 25
26.
内容 ▪ メタ管理テーブルにカラムの追加 ▪ テーブル設計の見直し無し ▪
正規化等も考慮せず ▪ 既存機能への影響調査がほとんど 26
27.
4. “肥大化”させないための 取り組み
28.
ドキュメントの更新 ▪ チケット管理 □ Trac
→ Redmine → GitLab? □ Gitフローでブランチ管理 ▪ Excel、PowerPointから脱却 □ Git管理 □ MarkDown + Mermaid 28
29.
スケール ▪ CDN連携や一部機能はスケールする仕組みを作成 □ 自動化したい ▪
関連システム間の結合を疎にし、 単機能としてマイクロサービス化を徐々に □ 一部機能をk8s環境に移行中 □ Dockerでコンテナ化も実施中 29
30.
デプロイの自動化 ▪ 一部から徐々に ▪ CI/CD □
k8s : Jenkins → Spinnaker 30
31.
テストの自動化 ▪ クラウドテスト環境 □ Dockerでffmpegの環境をパッケージ化 □
テストエンコーダとしてRTMPを指定した仕様で出力 ▪ 動画テスト □ 素材をアップロード→エンコード→視聴をテスト □ HLS→Dash、CMAFに拡張? 31
32.
できていないこと ▪ 人依存 → 難しい 統一された開発プロセスの整備から:Gitフロー ▪
改修規模、影響範囲 → 各機能の結合度が強すぎて機能分割から 32
33.
まとめ 5.
34.
“肥大化”は避けられない ▪ 肥大化したシステムを手動運用で続けるのは厳しい ▪ 自動化など人の手からどんどん離すべき 34
35.
OVP関係ないシステムの話? ▪ プラットフォームであるからこそ影響が大きい □ 多機能 □
環境が複雑 ▪ 動画関連の技術更新スピード □ 配信形式やプロトコルが多岐に システムとして受け入れられる土台は作っておくべき 35
36.
ありがとう ございました。 36
Download now