NewRelicと戦うレガシーPHP

意識低いテクです
at: NRUG (New Relic User Group) Vol.2
when: 2022/03/16
by: @uzulla

Transcript

1. NewRelicͱઓ͏
   ϨΨγʔPHP
   at: NRUG (New Relic User Group) Vol.2
   when: 2022/03/16
   by: @uzulla
   

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2. ࣗݾ঺հ
   • uzulla
   • ϑϦʔͷPHPΤϯδχΞ
   • N+1ࣾͷMՕॴͷݱ৔ͰՔಇத
   • ྫ PR TIMES ͞Μ
   

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3. ஫:͜ͷτʔΫ͸ಛఆͷاۀʹ͍ͭͯޠ͍ͬͯ·ͤΜ
   • ࢲ͸ݱࡏਐߦͰɺNࣾ x Mݱ৔ͰՔಇத
   • աڈͷݱ৔਺͸֮͑ͯ͢Βډͳ͍
   • ͨͩ͠ɺ৭ʑͳݱ৔Ͱࣅ͍ͯΔ͜ͱ͸͋Δ
   

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4. ࣗࣾ঺հͱ͔ͳ͍ΜͰએ఻
   • PHPerKaigi 2022
   • PHPͳํ͸ͥͻ
   • PR TIMESͷਓؒ΋ొஃ͠·͢
   

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5. NewRelic
   ❤
   PHP
   • ϙϯͱ(ϛυϧ΢ΣΞతʹ)͍ΕΔ͚ͩͰಈ͘
   • ύοʂͱ֎ͤΔ
   • ຊ൪ʹೖΕ͓͚ͯΔ΄ͲੑೳྼԽ௿͍
   • Τϥʔɾྫ֎͕͍͍ײ͡ʹϦΞϧλΠϜूܭ
   • = ࠷ߴʂ
   

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6. ࢲͱNewRelic
   • ׂͱੲ͔Βɺ͔ͭͣ཭ΕͣϢʔβʔ
   • ʮ͓٬༷͕͍Εͯ͘ΕΔ͔ʯ࣍ୈ
   • ʢ·͋ɺ͝༧ࢉ͸͋ΔΑͶ…Θ͔Δ…ʣ
   • ͨͱ͑͹PR TIMES͞Μ͸ೖΕͯ͘ΕͯΔ
   • ʮ࢖͑ͯϥοΩʔʂʂʯ
   

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7. ࣗෲ()ͱͷ૬ੑͷΑ͞
   • ༧ࢉ͸ग़ͳ͍͕ɺ΍ͬͯ΋͍͍ͱ͍͏ݱ৔΋͋Δ
   • ͢Δͱɺ֎͠΍͍͢͜ͱ΋ॏཁͰ͢ΑͶ…
   • PHP + NewRelic͸֎͠΍͍͢ʂ
   • (ίʔυʹೖΕͳͯ͘ྑ͍ͷͰ)
   • ISUCONͱ͔Ͱ΋ɺඵͰ֎ͤΔͷͰ࢖͑Δ
   

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8. ͯ͞ɺϨΨγʔPHP
   • ݹ͍ίʔυϕʔεͷPHP
   • PHP<=7…PHP<=5…
   • ࠷ۙ͸PHP8ະຬΛ੾Δ࣌୅͕ͩʢྫ: Laravel9ʣ
   NewRelic͸ͪΌΜͱಈ͘ʢخʣ
   

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9. ϨΨγʔPHPͱઓ͏೰Έ
   • ੵΈॏͳͬͨෛ࠴ίʔυ
   • error_reporting, display_errors=offͰݱ࣮ಀආ
   • ΤϥʔϩάΛݟͯͳ͍ʢ݁ߏଟ͘ͷݱ৔ʣ
   • ͱ͍͏͔ɺϩά͕ࣺͯΒΕ͍ͯΔ
   • ͋;ΕΔNotice, WarningΤϥʔ
   

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10. NewRelicͳΒʂ
    • ΤϥʔϩάΛಠࣗʹरͬͯूܭͯ͘͠ΕΔʂ
    • ͳʹ΋͠ͳͯ͘΋ࣗಈతʹϝτϦοΫʹ
    • ελοΫτϨʔε෇͖ʂ
    • ಉ͡ΤϥʔΛ෼ྨʂ
    • Error Inbox͔Βरͬͯ௚͚ͩ͢Ͱվળ͞ΕΔ
    • ෳ਺୆Ͱtail -f͠ͳ͍͍ͯ͘ͷ͸ָʂ()
    

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11. NewRelicΛ࢖Θͳ͍৔߹…
    • ϩάج൫…fluentd…kibana…
    • ूܭɾϝτϦΫε…
    • ϩʔςʔγϣϯ…DiskFull…
    • ෛՙ…
    • ༨෼ͳαʔόʔӡ༻…
    • etc,etc... େมͩͶ…
    

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12. ͯ͞ຊ୊
    • ʮϦϑΝΫλϦϯά͍ͨ͠ʂʯ
    • ͦͼཱ͑ͭϨΨγʔ
    • ʮσουίʔυΛ҆શʹফ͍ͨ͠ʯ
    • ʮͰ΋ɺຊ౰ʹࢮΜͰΔͷ͔ͳ…ʯ
    

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13. ʮͦΕɺNRͰ؆୯ʹऩूͰ͖ΔΑʂʯ
    

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14. E_USER_WARNING(౳)Λ࢖͏
    trigger_error(
    "This code is NOT DEAD",
    E_USER_WARNING
    );
    • https://www.php.net/manual/ja/function.trigger-error.php
    • ϢʔβʔϨϕϧͷΤϥʔ/ܯࠂ/௨஌ϝοηʔδΛੜ੒͢Δ
    

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17. Error InboxʹΨϯΨϯ͸͍ͬͯ͘Δ
    • (΋ͪΖΜϑΟϧλ΋Ͱ͖Δ)
    

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18. ิ଍ɿE_USER_*ͱ͸ʁ
    • PHPʹ͸ྫ֎ʹࣅͨ(?) ผͷΤϥʔػߏ͕͋Δ
    • DB઀ଓࣦഊE_WARNINGͱ͔ɺΑ͘Έ·͢ΑͶʢന໨ʣ
    • E_USER_* ͸ɺϢʔβʔ͕ൃߦͰ͖ΔΤϥʔܕ
    • DEPRECATED, NOTICE, WARNING, ERROR,ͷ4छ
    • WARN·Ͱ͸࣮ߦ͕ࢭ·Βͳ͍ (͜ͱ͕׆༻ͷϛι̍)
    • display_errors=offͰӅͤΔ (͜ͱ͕׆༻ͷϛι̎)
    

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19. ո͍͠ॴʹೖΕ·͘Δ͚ͩ
    • ௿ෛՙͰ
    • ར༻৔ॴ͕Θ͔Δ
    • ूܭ΋ࣗಈతʹ͞ΕΔ
    • ຊ౰ʹফ͔ͤͨ΋λΠϜϥΠϯͰΘ͔Δ
    • શ෦͕Θ͔Δɻͦ͏ɺNewRelicͳΒͶ
    

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20. ͞Βʹݴ͑͹
    • ༷ʑͳཧ༝ͰσϓϩΠͰ͖ͳ͍৔߹Ͱ΋…
    • ී௨ͷPHPͳΒɺຊ൪ʹsshͯ͠ɺ
    ௚઀viͯ͠ίʔυΛͿͬࢗ͢·ͰͰ͖Δ
    ʢίϨͰ΍ͬͯΔΘ͚Ͱ͸ͳ͍Ͱ͢ʂʂʣ
    

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21. ΋ͬͱ΋ͬͱ׆༻!!!!!
    • ༷ʑͳ৚݅Ͱಈతʹൃߦ΋Ͱ͖Δɻ
    ͨͱ͑͹ifͰʮ͋Γ͑ͳ͍஋ݕ஌ʯൃՐ΋Ͱ͖Δ
    if(!in_array($type, $allow_type_list)){
    trigger_error("OOB!!", E_USER_WARNING);
    }
    

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22. • REQUEST_URIΛਖ਼نදݱͰҾֻ͚ͬΔͱ͔΋Α͍
    if(preg_match(
    "|\A/v0.1/old_api/|u",
    $_SERVER['REQUEST_URI']
    ){
    trigger_error("deprecated...",E_USER_WARNING);
    }
    

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23. • ʮഇࢭ͞Εͨύϥϝλ͕͋Δʯͱ͔΋ʁ
    • php.iniͷauto_prepend_fileΛ׆༻͢Δͱָ͔΋
    if(isset($_GET['session_id'])){
    trigger_error("OMG!!",E_USER_WARNING);
    }
    

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24. ເ͕޿͕Δʂʂ
    • (ී௨ͷߦҝͰ͸ͳ͍Ͱ͢Ͷɺ͸͍)
    

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25. ޙย෇͚
    • શจݕࡧͰফͤ͹OK
    • (E_USER_WARNINGͱ͔ී௨͔ͭΘͳ͍ͷͰ…)
    • Ծʹ࢒͍ͬͯͯ΋Τϥʔϩάʹग़Δ͔Β୳ͤΔ͠ɺ
    ௒ѱӨڹ͸ͳ͍
    

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26. ͱ͍͏͜ͱͰ(?)PHPʹNewRelic͸࠷ߴʂ
    • ݹ͍PHPݱ৔ͦ͜ɺඞܞ
    • ͱʹ͔͘ೖΕͯɺͲΜͲΜίʔυվળ
    • ύϑΥʔϚϯενϡʔχϯά͚ͩͰͳ͍ʂ
    • (໪࿦ɺࣗಈతʹ࣮ߦαϯϓϧͯ͠վળ΋)
    • Error Inbox ͚ͩͰ΋ศརʂ
    

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27. Ҏ্ʂ
    

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28. ҟৗͳཁ๬
    • ϨϯαόΈ͍ͨͳͷͰ΋͏͍ͯ͝΄͍͠ͳ
    • ʢREST APIΛ͖ͨͨ·͘Ε͹Ͱ͖Δ…ʁʣ
    • ʮdl("newrelic.so")Ͱ͏͍ͨ͝Γ͠ͳ͍͔ͳ…ʯ
    • ʢҟৗͳཁ๬ͩͱཧղ͸͍ͯ͠·͢ʣ
    • ʮPHPʹৄ͍͠ʯNRͷਓ ͱ࿩ͯ͠Έ͍ͨ͆
    

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29. ΏΔ͍ئ๬
    • (ʮ͘͝Ұൠతͳ͓٬༷ʯʹ͓͍ͯ…ʣ
    • ʮͰɺ͜Ε͍͘Β͔͔Δͷʁʯ
    • Ͱɺ༧ࢉ͕૊ΊͣɺೖΕΒΕͳ͍͜ͱ͕ଟ͍…
    • ʢࢼࢉ͕೉͍͠ʣ
    •
    !
    

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30. I
    ❤
    NewRelic
    • NRͱPHPΛτϦοΩʔʹ࢖ͬͯΔਓͱ஌Γ߹͍͍ͨ
    • ࠷ޙʹɺPHPͳਓ͸PHPerKaigiʹ͝ࢀՃݕ౼͍ͩ͘͞
    

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