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

11.
! Apache module (mod_tofu.so)
! ImageMagick(Wand)
! Amazon S3

12.
akamai (cdn)
ELB
Apache Apache Apache
(mod_tofu) (mod_tofu) … (mod_tofu)
S3

13.
Akamai

14.
7000rps akamai (cdn) hit90%
700rps ELB
Apache Apache Apache
(mod_tofu) (mod_tofu) … (mod_tofu)
S3

15.
akamai (cdn) hit90%
ELB 24
CACHE(?)
hit60%
Apache Apache Apache
(mod_tofu) (mod_tofu) … (mod_tofu)
S3

16.
akamai (cdn)
ELB
Varnish Varnish
Apache Apache Apache
(mod_tofu) (mod_tofu) … (mod_tofu)
S3

17.
EC2+
Varnish

18.
1st
challenge

19.
1st challenge
EC2
m2.xlarge EBS
(17.1GB mem) 100GB
swap
Varnish 2.1.5
storage: malloc, 100GB

20.
m2.xlarge(17.1GB) varnish 2
+ EBS(100GB swap)
300req/s
17.1GB + EBS100G 110GB
60%
OS SWAP

21.
17.1GB
Varnish
swap
LoadAverage →Varnish

22.
2nd
challenge

23.
2nd challenge
EC2
m2.xlarge EBS
(17.1GB mem) 100GB
ext3
Varnish 2.1.5
storage: file, 100GB

24.
file storage
OS

25.
file storage
OS
restart

26.
EC2 Varnish
I/O

27.
Varnish3
persistent storage
restart file storage
hash director
varnish consistent hashing

28.
…

29.
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/
……

30.
akamai (cdn)
tofu
ELB
Varnish Varnish
Apache Apache ApacheApache
ApacheApache
(mod_tofu) (mod_tofu) … (mod_tofu) (mod_tofu)
(mod_tofu)
(mod_tofu)
S3

31.
cache
…

32.
DISK I/O
EC2 varnish m2.2xlarge
file storage
varnish