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
みんなのIMAPを可視化する / Visualize IMAP Everybody
Search
linyows
July 14, 2020
Programming
2
530
みんなのIMAPを可視化する / Visualize IMAP Everybody
Fukuoka.go#16 で発表した資料です。Junly 14, 2020
linyows
July 14, 2020
Tweet
Share
More Decks by linyows
See All by linyows
奥が深いメールのシステム / The depth of Email system
linyows
3
220
IaCにおけるテスト考察 / Tests in IaC
linyows
2
250
リバースエンジニアリングとGoでSlackの認知負荷を下げる / Reducing cognitive load in Slack with Reverse-engineering and Go
linyows
2
160
透過型SMTPプロキシによる送信メールの可観測性向上 / Improved observability of outgoing emails with transparent smtp proxy
linyows
2
770
プロダクションで使うGo Pluginの利便性とパフォーマンス性 / Simplicity and Performance of Go plugin for Production
linyows
0
370
求められるソフトウェアエンジニア像とキャリア戦略 / Engineers and Career Strategies Required Now
linyows
2
370
CloudflareのCAPTCHAを使って ユーザ体験を下げず不正利用を排除する / Cloudflare's captcha case study that does not degrade ux
linyows
0
280
なぜNotionを使うのか2022 / Why use notion as our workspace in 2022
linyows
3
5.8k
Denoの仕組み / How deno works as TypeScript runtime
linyows
2
700
Other Decks in Programming
See All in Programming
CSC307 Lecture 04
javiergs
PRO
0
210
スクラムフェスを支える配信の仕組み
murabayashi
1
150
あらゆるアプリをCompose Multiplatformで書きたい! -ネイティブアプリの「あの機能」を私たちはどう作るか-
subroh0508
1
880
開発生産性の観点から考える自動テスト(2024/06版) / Automated Test Knowledge from Savanna 202406 Findy dev-prod-con edition
twada
PRO
14
6.7k
過去や未来を扱うのは難しい? 過去と未来に立ち向かうための勘所
shinpeim
2
440
【暫定版】App Intentsの新機能から見るApple Intelligenceと近い未来
ikejun360
0
110
Tap it! Shake it! Fling it! Sheep it! The Gesture Animations Dance!
kwakeuijin
0
110
凝集性から考えるLaravelのmiddleware、routingに書くか? Policyに書くか?
newnomad
1
170
君は新しい日付/時刻API Temporal を知っているか?
luccafort
PRO
5
1k
アーキテクチャレベルで考える開発生産性 / architecture-and-productivity
minodriven
16
6.2k
ボトムアップではじめるFour Keys・SPACEを用いた開発プロセスの改善事例 〜開発生産性に向き合ってチームの成長を実感する〜
nomuson
1
260
プラットフォームエンジニアリングを 普及と実践し続けて見えてきた利点とリスク
zawa_zawa0210
2
3.4k
Featured
See All Featured
VelocityConf: Rendering Performance Case Studies
addyosmani
321
23k
The Brand Is Dead. Long Live the Brand.
mthomps
51
36k
Visualization
eitanlees
137
14k
The Pragmatic Product Professional
lauravandoore
28
6k
How STYLIGHT went responsive
nonsquared
92
4.9k
Rebuilding a faster, lazier Slack
samanthasiow
75
8.4k
Helping Users Find Their Own Way: Creating Modern Search Experiences
danielanewman
23
2k
Building Your Own Lightsaber
phodgson
101
5.8k
What the flash - Photography Introduction
edds
64
11k
Become a Pro
speakerdeck
PRO
14
4.7k
The MySQL Ecosystem @ GitHub 2015
samlambert
246
12k
Designing for humans not robots
tammielis
247
25k
Transcript
Fukuoka.go#16 Tomohisa Oda / July 14, 2020 VisualizeIMAP Everybody
Fukuoka.go#16 @linyows Blog: tomohisaoda.com Affiliation: GMO pepabo, inc.
Fukuoka.go#16 ๏ ϗεςΟϯάࣄۀ෦Senior Engineering Lead ࣄۀ෦ͷCTOVPoEͷΑ͏ͳͷ ๏ ϖύϘݚڀॴभେֶڞಉݚڀ 2020Պݚඅ࠾IUUQTLBLFOOJJBDKQHSBOU,",&/)*130+&$5, ܰྔίϯςφʹΑΔେنߴूੵϝʔϧϗεςΟϯάج൫ʹ͓͚Δૹ৴ػೳͷߴػೳԽ
In Pepabo…
Fukuoka.go#16 Private Projects ΞϓϦέʔγϣϯ͕ࣗϦϙδτϦ͔Β࠷৽ͷίʔυΛݕ ͯࣗ͠ಈͰσϓϩΠͱσϦόϦʔΛߦ͏πʔϧ MJOVYͷVTFS໊લղܾΛ(JU)VCͷ5FBNϝϯόʔϦϙδτ ϦͷΞΫηεݖݶऀ͔Βߦ͏πʔϧ
Fukuoka.go#16 Pepaboϗετ͍ͯ͠·͢
Fukuoka.go#16 ๏ Domain — DNS ๏ Web — HTTP, SSH,
FTP and WebDav… ๏ Mail — SMTP, POP, IMAP… ๏ Database — (MySQL, SQLite…) ϩϦϙοϓϔςϜϧ͕ϗετ͍ͯ͠Δͷ ͍ΖΜͳٕज़Λѻ͍ͬͯ·͢
Fukuoka.go#16 ๏ Domain — DNS ๏ Web — HTTP, SSH,
FTP and WebDav… ๏ Mail — SMTP, POP, IMAP… ๏ Database — (MySQL, SQLite…) ϩϦϙοϓϔςϜϧ͕ϗετ͍ͯ͠Δͷ ຊίίͷ
Fukuoka.go#16 Mail ͍ͬͯ·͔͢ʁ
Fukuoka.go#16 ͍·Ͳ͖ϝʔϧʁ͔ͭͬͯͳ͍ʁ͍͍͍ʜ — Chat Type — Messaging Type
Fukuoka.go#16 ΄Βɺࢥ͍ग़͠·͔ͨ͠ʁͪΌΜͱ͍ͬͯ·͢Ͷʁ
Fukuoka.go#16 େมਃ͠༁͋Γ·ͤΜ
Fukuoka.go#16 େମ(NBJMPS(4VJUFͰ͢ΑͶʁ
Fukuoka.go#16 ͍ʹ͑͠ͷٕज़ͱ͍͑ɺMailʹมΘΔ ΦʔϓϯͳMessagingγεςϜͳ͍
Fukuoka.go#16 MailͷΈ
Fukuoka.go#16 Architecture RFC 5598 ʹ͋Γ·͕͢ʜ
Fukuoka.go#16 Architecture ͬͱγϯϓϧͳͭ ͜ΕͰ࠷খߏͳͷͰࠜຊతʹ ΣϒΑΓෳࡶ Mail Submission Agent :587 Mail
Transferring Agent :25 Mail Delivery Agent :993 Postfix Postfix Dovecot ✉ ✉ SMTP SMTP LMTP IMAP
Fukuoka.go#16 ϩϦϙοϓϔςϜϧʹ͍ͭͯ
Fukuoka.go#16 Our Status 120 100k 2.2k Over /min ͜ͷΑ͏ͳنײ
Fukuoka.go#16 Our Status 120 100k 2.2k Over /min ͜ͷΑ͏ͳنײ ϝʔϧαʔόʹΔ
ϝʔϧΞΧϯτ Max ϝʔϧαʔόͷ ؒʹૹΔϝʔϧ ௨ʢDeliveredʣ
Fukuoka.go#16 Our Challenges ๏ ૹ৴ ๏ IP BanɺBlack ListೖΓ ΞΧϯτͬऔΓෆਖ਼ར༻
ѱҙͷͳ͍େྔϝʔϧ৴ ๏ ड৴ ๏ ϑΟογϯάɺΟϧεɺεύϜϝʔϧഉআ ๏ Disk I/Oෛՙ
Fukuoka.go#16 ๏ ૹ৴ ๏ IP BanɺBlack ListೖΓ ΞΧϯτͬऔΓෆਖ਼ར༻ ѱҙͷͳ͍େྔϝʔϧ৴ ๏
ड৴ ๏ ϑΟογϯάɺΟϧεɺεύϜϝʔϧഉআ ๏ Disk I/Oෛՙ Our Challenges
Fukuoka.go#16 ๏ ͍͍ετϨʔδΛങ͑ղܾ͢Δ ๏ Ձ֨ଳͷαʔϏεͳͷͰݫ͍͠ ๏ ݱঢ়ɺෛՙͷߴ͍ΞΧϯτΛҠઃͯ͠Ϧιʔε ফඅΛۉ͢ઓུ ๏ ࣌ʹSFTUBSUʜ
IMAP Disk I/O
Fukuoka.go#16 ๏ ओʹPrometheusΛ͍ͬͯΔ ๏ ֤Proxyϝʔϧαʔόʹ͍Εͨnode_exporterʹΑΔϦιʔεࢹ ๏ mtailͰϝʔϧΩϡʔେखϓϩόΠμʔͷόϯεϝʔϧͷࢹ ๏ blackbox_exporterͰsmtp, pop,
imapͷPortࢹ ݱঢ়ͷࢹेͰͳ͍ Monitoring
Fukuoka.go#16
Fukuoka.go#16
Fukuoka.go#16
Fukuoka.go#16 imap_exporterΛ࡞ͬͨ
Fukuoka.go#16 ๏ ϛυϧΣΞʹґଘ͠ͳ͍ΑΓநతͳϓϩτίϧϨϕϧͳϝτϦΫεΛऔಘ͢Δ ๏ Mail User Agent͕ඞͣߦ͏Ұ࿈ͷίϚϯυΛൃߦ͔͔ͯͬͨ࣌ؒ͠ΛͱΔ ๏ Connection /
Login / List / Select / Fetch / Logout ๏ IMAP ClientɺطଘϞδϡʔϧΛ͏ͷͰͳࣗ͘લͰ࣮͢ΔʢIMAPͷؾ࣋ͪʹͳ Δʣ imap_exporter
Fukuoka.go#16 ๏ RFC2060ΛΑʔ͠ಡΉͧͱ ࢥͬͨΒ్தͰ૬ͳϘϦϡʔ Ϝ͕͋Δ͜ͱʹؾͮ͘ ๏ SMTP͕ϖʔδ΄Ͳʹରͯ͠ ϖʔδ IMAPͷ༷RFC2060
Fukuoka.go#16 ๏ ͜Μͳ͜ͱ͋Ζ͏͔ͱɺຊ୨͔ΒऔΓग़͢ ిࢠϝʔϧϓϩτίϧʕجຊɾ࣮ɾӡ༻ 2000/11
Fukuoka.go#16 ๏ IMAPʹͭͷεςʔτ͕͋Γ ๏ ະೝূ ๏ ೝূࡁ ๏ બࡁ ๏
ϩάΞτ ๏ ͦΕͧΕͷεςʔτʹ͓͍ͯΫϥΠΞϯτ͕ൃߦ͢ΔλάΛͬͯαʔόʔͱΫϥΠΞϯ τͷίϛϡχέʔγϣϯΛߦ͏ IMAP ίϚϯυ λά
Fukuoka.go#16 IMAP ΫϥΠΞϯτͷ࣮
Fukuoka.go#16 Ϩεϙϯεʹλά͕͋Δ͔Ͳ͏͔Λ ఆ͍ͯ͠Δ͚ͩͷγϯϓϧͳ࣮
Fukuoka.go#16 telnetopensslΛ͏Α͏ͳΠϝʔδͰίϚϯυΛ࣮ߦ͢Δ
Fukuoka.go#16 ๏ ࠨͷάϥϑखݩ͔ΒαϯϓϧΞΧϯτʹ ଓͨ͠ྫ ๏ ͜ΕΛશͯͷϝʔϧαʔόʹಋೖ͢Δ༧ఆ ๏ Disk I/OෛՙʹରԠ͢Δࢳޱ͕Έ͔ͭΕͱ͍ ͏ఔ
๏ IMAPͷঢ়ଶΛՄࢹԽ͢Δ͜ͱʹؒҧ͍ͳ͍ ๏ Ұ࿈ͷಈ࡞ΛFirst Loading Latencyͱ͍͏໊ લΛ͚ͭͨ First Loading Latency
Fukuoka.go#16 ๏ imap_exporterΛ࡞ͬͯMail Delivery AgentΛՄࢹԽ͠Α͏ͱ͍ͯ͠Δ ๏ IMAPϓϩτίϧSMTPͱҧͬͯ૬ෳࡶ ๏ ϓϩτίϧ༷Λཧղ͢Δ͜ͱͰGoඪ४ϥΠϒϥϦͰͬ͘͞ͱΫϥΠΞϯτ࣮Ͱ͖ͨ ͜ͷΑ͏ʹɺEngineeringͰϗεςΟϯάͷϝʔϧΛࢧ͍͑ͯ·͢ɻ࠷ۙɺMREͱ͍͏৬छ
ΛͿ্͍ͪ͛ͯ·͢ʂʂʂʂ Conclusion
Fukuoka.go#16 Messaging Reliability EngineeringʢMREʣɺਓͱਓͱ͕ιϑτΣΞΛ௨ͯ͡ ίϛϡχέʔγϣϯΛ͢ΔγεςϜʹ͓͍ͯɺεέʔϥϒϧͰ৴པੑͷߴ͍ιϑτ ΣΞγεςϜΛ࡞͠·͢ɻMREɺΠϯϑϥετϥΫνϟͱӡ༻ΛదԠͤ͞Δ Site Reliability EngineeringͷจԽΛMessagingͰड͚ܧ͍ͩͷͰ͢ɻجຊ తͳ͜ͱSREͱಉ͡Ͱ͕͢ɺѻ͏ٕज़͕ओʹϝʔϧͰɺϝʔϧͷӡ༻ΛιϑτΣ
ΞͰΤϯδχΞϦϯά͢Δ͜ͱʹͳΓ·͢ɻʮMREϖύϘʯͰݕࡧʂ Messaging Reliability Engineeringͱ
Fukuoka.go#16 Thank youaʕ⊙౪⚆ʔ