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Ching Yi Chan
November 14, 2014
Programming
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deploy legacy web on the cloud
2014 JCCONF 快講:老舊 Web 上雲端
talk from
http://jcconf.tw/legacy-web-to-cloud.html
Ching Yi Chan
November 14, 2014
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Transcript
老舊 Web 上雲端 qrtt1 #JCConf
ϼᔚ8FCɪථ၌ɽၤ $BDIF $%/ "DUJWF$BDIF ০࿁வϣਪᕚה፯ٙ˴ࠅ˙ج
$BDIF $%/ "DUJWF$BDIF ০࿁வϣਪᕚה፯ٙ˴ࠅ˙ج ྼ᜕ሯٙ˴ਗόҞ՟ ڢ੬ెพ ࠠอܠϽҞ՟ٙ࿁ၾഄଫ ϼᔚ8FCɪථ၌ɽၤ
$BDIF $%/ "DUJWF$BDIF ০࿁வϣਪᕚה፯ٙ˴ࠅ˙ج ྼ᜕ሯٙ˴ਗόҞ՟ ڢ੬ెพ ࠠอܠϽҞ՟ٙ࿁ၾഄଫ ਕٜՑ˰ޢٙး᎘ ϼᔚ8FCɪථ၌ɽၤ
老舊 Web 上雲端 ݊ɓ၇࿁ೌجၪᚐٙ8FCਖ਼ࣩٙయ၈
老舊 Web 上雲端 CBETNFMMɽණΥ όᅵٙEVQMJDBUFEDPEF όᅵٙMPOHNFUIPE DMBTT όᅵٙVOUFTUBCMFDPEF
老舊 Web 上雲端 ͟MFHBDZDPEF˄̙ə ɪථ၌ࠇྌdϞࡈɽۃlll ʔҷ݅Ϟό
老舊 Web + 老舊機器 *5ɛ⨈ٙ Ѣྤ Linux www.iradiopop.com 2.6.26.8-57.fc8
#1 SMP Thu Dec 18 18:59:49 EST 2008 x86_64 x86_64 x86_6
S1 S2 LB Պۨٙ8FCݖ ̨-PBEJOH#BMBODFS ߰ʍࡈܝ၌4FSWFS Ѣྤ
S1 S2 LB Դ͜ඎ တ̈Ըࣛn Ѣྤ
S1 S2 LB ೌجਕeϥዚeஹʔɪeࠠක ᑋٙ-# ึኬΣᒔঐਗٙዚኜ
S1 S2 LB ೌجਕeϥዚeஹʔɪeࠠක ᑋٙ-# ึኬΣᒔঐਗٙዚኜ
S1 S2 LB Ѣྤ Ϥɗ $SBTIᔔᔔؐ ߮༻ٙ4ZT"ENJO
S1 S2 LB ථ၌ Դ͜ඎ တ̈Ըࣛn
S1 S2 LB ථ၌ S3 S4 ఱ̋һεዚኜᱍϞ፺ॆλ
S1 S2 LB ථ၌ ᄳΎᒛٙ8FCேϞ፬ج 4DBMF0VU 4DBMF*O ̥݊ࠢɽ፩Ԅλணࠇٙϓۜ TUJDLZTFTTJPO
ν؈ЫܘϞ፺
貴、順、爽 貴、順、爽 LB ̙˸൯ܘ൮ٙዚኜ
窮 窮 LB ̙݊ɭ ɓছٙʃʮ̡ ε̒͟ک֝ٙዚኜක༊
輕 Ꮸী ཫၑϞࠢd ൯ʔՑԑ1PXFSٙዚኜࣛ ࡡ͉Ҟٙή˙ᜊ࿔ə$16 ࿔ٙή˙ᜊҞə*0
Ꮸী request business logic db query
Ꮸী request business logic cache db query
Ꮸী request business logic cache db query ᔚዚኜٙ*0ˢථ၌ᒔ࿔d ה˸ࡡ͉࿔ٙᜊҞə
Ꮸী request business logic cache db query ᔚዚኜٙ$16ˢථ၌ᒔҞd ה˸ࡡ͉Ҟٙᜊ࿔ə for(…)
{ for(…) { for(…) { /* 很暴⼒力地過濾資料 */ } } }
Ꮸী request cache db query business logic ৎԸ݊ࡈ һ࠽Ҟ՟ٙ࿁ Active
Cache
ܠ༩ Active Cache request cache heavy business logic ϞҞ՟dఱ݊න
ܠ༩ Active Cache request expired cache heavy business logic ӚҞ՟dఱഃ
ഃܙ
ܠ༩ Active Cache request heavy business logic active cache ٝ༸νОһอІʉٙҞ՟
"DUJWF$BDIF ʔഃܙ
ెพ Active Cache Active Cache ༟ࣘཀಂۃ ࣛ d˴ਗࠠҴ༟ࣘ ତϞٙ-JCSBSZ HVBWB$BDIF-PBEFS
BUTMFHBDZDPEF˄ᗭҷd Ӕ֛˸ʔҷDPEFމͦᅺ
ెพ Active Cache Դ͜"01ౢɝ"EWJDF ᜫCVTJOFTTMPHJD˕౪"DUJWF$BDIF ਗ਼NFUIPEDBMMᔷϓDBDIFLFZ ൗ̅NFUIPEDBMMЇDBDIFSFGSFTITDIFEVMFS
active cache ెพ Active Cache request business logic KEY Cached
Refresh Scheduler business logic method call to cache key register key + method call to scheduler
active cache ెพ Active Cache request business logic Cached Refresh
Scheduler cache storage auto refresh business logic Դ͜٫Ցٙ CVTJOFTTMPHJD ॆ͍ٙ CVTJOFTTMPHJD
ెพ Active Cache "DUJWF$BDIF͉Ը݊މəಯˇഃܙࣛගணࠇ ׳ίථ၌ɪdܦ̷ಯˇə#VTZ+PCว༟๕ٙਪᕚ ͟DBDIFSFGSFTITDIFEVMFSࠢՓ-PBEJOH
ྼЪ Active Cache ٙ฿ׂܘᔊఊ Դ͜"01"EWJDFᘗ࿚NFUIPEDBMM ,&:NFUIPE BSHVNFOUT
ྼЪ Active Cache NFUIPE" VTFS*OGP TUS JOU NBQ PUIFS1PKP
LFZTJHOBUVSF@ BSHT<> BSHT<> BSHT<n> NFUIPE"@6TFS!BBBB@TUS@@\B C^@ NFUIPE"@VTFS@TUS@@\B C^@ ϞԬيUP4USJOHܝٙഐ؈ʔΥ͜d౬ϓՉ˼तᅄ˾ಁ
ྼЪ Active Cache ϞԬيdӚϞHFUUFSঐ՟तᅄl ͜"01ᘗ࿚ܔɿਞᅰdႡЪᗆй༟ࣘ NFUIPE# VTFS-JTU DPNQBSBUPS NFUIPE#@VTFS@VTFS@n@DPNQBSBUPS!BC
NFUIPE#@VTFS@VTFS@n@DNQ!4PSU#Z%BUF
ྼЪ Active Cache "DUJWF$BDIFνОٝ༸༈һอək ݊6TFSխ̣ٙఱΟ$BDIF ݊4DIFEVMFSխ̣ٙఱ3FGSFTI javax.servlet.http.HttpServlet.service(HttpServlet.java:641) stacktrace 看到 HttpServlet.service
就當他是 User 唄
Ⴣ˙ ආɝථ၌ࣛ˾d 8FC"QQԱᔚ݊τༀί4FSWFSɪٙ ࠅνОਕᕎዚג༰Ⴣٙ܄˒݊ࡈਪᕚ
Ⴣ˙ ܄˒௰ɽdШ܄˒ٙЗໄܘᏇ҄lll ڛזЬeڶᖯeΙܓeࡾʿen ᕎ7.ዚגܘჃd Шᕎ$%/&EHF-PDBUJPOӚԟჿჃf
Ⴣ˙ л͜$%/ෂਗ࿒༟ࣘdቇΥᔊఊٙ3&45'6-4FSWJDF request / response λჃ˅ྪჃ
Ⴣ˙ λჃ˅ྪჃ filter CDN )551 ࡡԸҢࡁவჿڐ request / response ਕٜՑ˰ޢٙး᎘
л͜$%/ෂਗ࿒༟ࣘdቇΥᔊఊٙ3&45'6-4FSWJDF DBDIFEVSM
Ⴣ˙ਕٜՑ˰ޢٙး᎘ νОԴ$BDIF&YQJSF $%/JOWBMJEBUJPOܘ࿔d౬༩ࢰܘҞ IUUQDEOUJNFXJOEPXUPLFOSDBDIFLFZ IUUQDEOUJNFXJOEPXUPLFOHDBDIFLFZ IUUQDEOUJNFXJOEPXUPLFOCDBDIFLFZ ⼩小⼼心安全問題,不要放敏感資料
$BDIF $%/ "DUJWF$BDIF ০࿁வϣਪᕚה፯ٙ˴ࠅ˙ج ྼ᜕ሯٙ˴ਗόҞ՟ ڢ੬ెพ ࠠอܠϽҞ՟ٙ࿁ၾഄଫ ਕٜՑ˰ޢٙး᎘ 2" ϼᔚ8FCɪථ၌