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
600
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
Protocol Buffersの型を超えて拡張性を得る / Beyond Protocol Buffers Types Achieving Extensibility
linyows
0
110
研究開発と実装OSSと プロダクトの好循環 / A virtuous cycle of research and development implementation OSS and products
linyows
1
540
コードジェネレーターで 効率的な開発をする / Efficient development with code generators
linyows
0
340
研究を支える拡張性の高い ワークフローツールの提案 / Proposal of highly expandable workflow tools to support research
linyows
0
470
非コンテナ環境において宣言的Deploymentを手軽に実現する / Declarative deployment in non-container environments
linyows
0
260
メール送信サーバの集約における透過型SMTP プロキシの定量評価 / Quantitative Evaluation of Transparent SMTP Proxy in Email Sending Server Aggregation
linyows
0
1k
透過型SMTPプロキシによる送信メールの可観測性向上: Update Edition / Improved observability of outgoing emails with transparent smtp proxy: Update edition
linyows
2
500
研究の再現性を高める 仕組みをGoでつくる / Creating a system to improve the reproducibility of research using go
linyows
1
260
奥が深いメールのシステム / The depth of Email system
linyows
4
630
Other Decks in Programming
See All in Programming
250830 IaCの選定~AWS SAMのLambdaをECSに乗り換えたときの備忘録~
east_takumi
0
390
Navigation 2 を 3 に移行する(予定)ためにやったこと
yokomii
0
140
プロパティベーステストによるUIテスト: LLMによるプロパティ定義生成でエッジケースを捉える
tetta_pdnt
0
310
請來的 AI Agent 同事們在寫程式時,怎麼用 pytest 去除各種幻想與盲點
keitheis
0
120
Swift Updates - Learn Languages 2025
koher
2
470
Testing Trophyは叫ばない
toms74209200
0
860
Oracle Database Technology Night 92 Database Connection control FAN-AC
oracle4engineer
PRO
1
440
Processing Gem ベースの、2D レトロゲームエンジンの開発
tokujiros
2
120
MCPとデザインシステムに立脚したデザインと実装の融合
yukukotani
4
1.4k
そのAPI、誰のため? Androidライブラリ設計における利用者目線の実践テクニック
mkeeda
2
280
Updates on MLS on Ruby (and maybe more)
sylph01
1
180
Compose Multiplatform × AI で作る、次世代アプリ開発支援ツールの設計と実装
thagikura
0
140
Featured
See All Featured
Connecting the Dots Between Site Speed, User Experience & Your Business [WebExpo 2025]
tammyeverts
8
520
Refactoring Trust on Your Teams (GOTO; Chicago 2020)
rmw
34
3.1k
"I'm Feeling Lucky" - Building Great Search Experiences for Today's Users (#IAC19)
danielanewman
229
22k
Java REST API Framework Comparison - PWX 2021
mraible
33
8.8k
We Have a Design System, Now What?
morganepeng
53
7.8k
How STYLIGHT went responsive
nonsquared
100
5.8k
Building Applications with DynamoDB
mza
96
6.6k
Practical Orchestrator
shlominoach
190
11k
Faster Mobile Websites
deanohume
309
31k
Large-scale JavaScript Application Architecture
addyosmani
512
110k
Music & Morning Musume
bryan
46
6.8k
Automating Front-end Workflow
addyosmani
1370
200k
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