どうも、クックパッドの画像配信野郎mirakuiです。Varnish 3 のリリースに合わせて行われたVarnish勉強会「Tokyo.vcl」の第一回で発表したスライドです。

1. EC2 Varnish

2. @mirakui

3. ※

4. BEFORE TOFU
app
app
app
apache
apache

5. tofu

6. AFTER TOFU
app
app
app
tofu
apache

7. http://tofu/recipes/1237075/100x141c/
0b9c3ad1cba65869058e17cf78988bcb.jpg

8. http://tofu/recipes/
1237075/100x141c/
0b9c3ad1cba65869058e17cf78988bcb.jpg

9. ‘100’
‘100x100’
‘100x100c’
‘100x100c40_198_137_104_300’

10. DEMO

12. ! Apache module (mod_tofu.so)
! ImageMagick(Wand)
! Amazon S3

13. akamai (cdn)
ELB
Apache Apache Apache
(mod_tofu) (mod_tofu) … (mod_tofu)
S3

14. Akamai

15. 7000rps akamai (cdn) hit90%
700rps ELB
Apache Apache Apache
(mod_tofu) (mod_tofu) … (mod_tofu)
S3

16. akamai (cdn) hit90%
ELB 24
CACHE(?)
hit60%
Apache Apache Apache
(mod_tofu) (mod_tofu) … (mod_tofu)
S3

17. akamai (cdn)
ELB
Varnish Varnish
Apache Apache Apache
(mod_tofu) (mod_tofu) … (mod_tofu)
S3

18. EC2+
Varnish

19. 1st
challenge

20. 1st challenge
EC2
m2.xlarge EBS
(17.1GB mem) 100GB
swap
Varnish 2.1.5
storage: malloc, 100GB

21. m2.xlarge(17.1GB) varnish 2
+ EBS(100GB swap)
300req/s
17.1GB + EBS100G 110GB
60%
OS SWAP

24. 17.1GB
Varnish
swap
LoadAverage →Varnish

26. 2nd
challenge

27. 2nd challenge
EC2
m2.xlarge EBS
(17.1GB mem) 100GB
ext3
Varnish 2.1.5
storage: file, 100GB

30. file storage
OS

32. file storage
OS
restart

35. EC2 Varnish
I/O

37. Varnish3
persistent storage
restart file storage
hash director
varnish consistent hashing

38. …

39. instance cores memory price
m1.large 2 7.5gb 23,904/
m1.xlarge 4 15gb 47,808/
c1.xlarge 8 7gb 47,808/
m2.xlarge 2 17.1gb 35,868/
m2.2xlarge 4 34.2gb 71,712/
m2.4xlarge 8 68.48gb 142,826/
……

40. akamai (cdn)
tofu
ELB
Varnish Varnish
Apache Apache ApacheApache
ApacheApache
(mod_tofu) (mod_tofu) … (mod_tofu) (mod_tofu)
(mod_tofu)
(mod_tofu)
S3

41. cache
…

43. DISK I/O
EC2 varnish m2.2xlarge
file storage
varnish