HTML cache

HTML cache

Transcript

1. HTML Cache
   Constitution
   2017.03.17
   社内勉強会
   @nakamura_tsuyo4
   

   View Slide

2. Agenda
   ➔ Nginx proxy cache
   ➔ Varnish
   ➔ Fastcgi cache
   ➔ memo
   

   View Slide

3. Agenda
   ➔ Nginx proxy cache
   ➔ Varnish
   ➔ Fastcgi cache
   ➔ memo
   

   View Slide

4. Nginx proxy cache
   LB
   Nginx
   (proxy cache)
   Nginx
   (proxy cache)
   Nginx+fastcgi
   Nginx+fastcgi
   

   View Slide

5. Nginx proxy cache
   LB
   Nginx
   (proxy cache)
   Nginx
   (proxy cache)
   Nginx+fastcgi
   Nginx+fastcgi
   んーん
   

   View Slide

6. Nginx proxy cache
   LB
   Nginx
   (proxy cache)
   Nginx
   (proxy cache)
   LB
   Nginx+fastcgi
   Nginx+fastcgi
   

   View Slide

7. Nginx proxy cache
   LB
   Nginx
   (proxy cache)
   Nginx
   (proxy cache)
   LB
   Nginx+fastcgi
   Nginx+fastcgi
   構成変更ありきだなぁー
   

   View Slide

8. Agenda
   ➔ Nginx proxy cache
   ➔ Varnish
   ➔ Fastcgi cache
   ➔ memo
   

   View Slide

9. Varnish
   LB
   Nginx+fastcgi
   Varnish LB
   Varnish plus?
   Varnish plus? Nginx+fastcgi
   

   View Slide

10. Varnish
    LB
    Nginx+fastcgi
    Varnish LB
    Varnish plus?
    Varnish plus? Nginx+fastcgi
    VHA (VARNISH HIGH AVAILABILITY)
    

    View Slide

11. Varnish
    LB
    varnish
    varnish
    Nginx+fastcgi
    Nginx+fastcgi
    varnish LB
    

    View Slide

12. Varnish
    LB
    varnish
    varnish
    Nginx+fastcgi
    Nginx+fastcgi
    varnish LB
    Self-routing varnish cluster
    

    View Slide

13. Varnish self-routing varnish cluster
    https://info.varnish-software.com/blog/creating-self-routing-varnish-cluster
    

    View Slide

14. Varnish self-routing varnish cluster config
    https://gist.github.com/rezan/1eadaef1745286a4e7262d83e1eff19c
    

    View Slide

15. Varnish self-routing varnish cluster config
    “ We leverage this director to do our content
    “ sharding by hashing on the URL and route
    “ the request to its destination:
    

    View Slide

16. Agenda
    ➔ Nginx proxy cache
    ➔ Varnish
    ➔ Fastcgi cache
    ➔ memo
    

    View Slide

17. FastCGI cache
    LB
    Nginx+fastcgi
    fastcgi_cache
    Nginx+fastcgi
    fastcgi_cache
    

    View Slide

18. FastCGI cache
    LB
    Nginx+fastcgi
    fastcgi_cache
    Nginx+fastcgi
    fastcgi_cache
    構成変更なく手軽かも
    

    View Slide

19. Agenda
    ➔ Nginx proxy cache
    ➔ Varnish
    ➔ Fastcgi cache
    ➔ memo
    

    View Slide

20. memo
    ● Cache自体はそれぞれのサーバに保存されるので deleteしたい時の考慮は必要
    ○ Or 即時反映されなくても良い業務設計が必要
    ● cacheすべきurlはcache serverのconfigでの管理になる
    ● Proxy_cache_lock , fastcgi_cache_lockは使った方がよさげ
    ○ 同時アクセス負荷がかかった時に結局死ぬと思ってる
    ● パフォーマンスのBenchmarkは未検証
    ● First stepとしてfastcgi_cacheは良さげ
    ● リアルタイム性が必要なデータは当然あるので API開発はセット
    

    View Slide