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
570
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
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
300
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
71
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
660
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
330
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
170
奥が深いメールのシステム / The depth of Email system
linyows
4
490
IaCにおけるテスト考察 / Tests in IaC
linyows
2
560
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
340
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
1.1k
Other Decks in Programming
See All in Programming
Djangoにおける複数ユーザー種別認証の設計アプローチ@DjangoCongress JP 2025
delhi09
PRO
4
370
Visual StudioのGitHub Copilotでいろいろやってみる
tomokusaba
1
180
さいきょうのレイヤードアーキテクチャについて考えてみた
yahiru
3
760
仕様変更に耐えるための"今の"DRY原則を考える
mkmk884
7
2k
React 19アップデートのために必要なこと
uhyo
2
530
責務と認知負荷を整える! 抽象レベルを意識した関心の分離
yahiru
8
1.1k
dbt Pythonモデルで実現するSnowflake活用術
trsnium
0
210
Rails アプリ地図考 Flush Cut
makicamel
1
120
コミュニティ駆動 AWS CDK ライブラリ「Open Constructs Library」 / community-cdk-library
gotok365
2
170
ARA Ansible for the teams
kksat
0
150
チームリードになって変わったこと
isaka1022
0
210
なぜイベント駆動が必要なのか - CQRS/ESで解く複雑系システムの課題 -
j5ik2o
12
4.4k
Featured
See All Featured
A better future with KSS
kneath
238
17k
Embracing the Ebb and Flow
colly
84
4.6k
GraphQLとの向き合い方2022年版
quramy
44
13k
How To Stay Up To Date on Web Technology
chriscoyier
790
250k
A designer walks into a library…
pauljervisheath
205
24k
The Art of Delivering Value - GDevCon NA Keynote
reverentgeek
10
1.3k
Designing for humans not robots
tammielis
250
25k
GitHub's CSS Performance
jonrohan
1030
460k
Stop Working from a Prison Cell
hatefulcrawdad
267
20k
Practical Orchestrator
shlominoach
186
10k
The Cult of Friendly URLs
andyhume
78
6.2k
Done Done
chrislema
182
16k
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