This document discusses optimizations made to Ameba's infrastructure. It describes moving Nginx's temporary files to a tmpfs filesystem to reduce I/O load, balancing traffic across four servers, and using techniques like HTTP compression and a memory database to improve performance handling 6GB of traffic and 160GB of data per day on their systems.

1. Ameba × COOKPAD
LT
( )

3. • (udagawa satoshi)
•
• Ameba
• squid
Twitter(id: @saeoshi)
Blog( :http://cequiestaime.blogspot.com)

5. tmpfs

6. Ameba

7. nginx proxy
squid/nginx(old) squid/nginx(new) squid/nginx(misc) cache
nginx/apache(blog_images) nginx/apache(misc) origin

8. • Traffic 6G
• 160G /day
• 4

9. Ameba

11. nginx load

12. I/O(write)

13. why

14. • nginx proxy_temp
(request
)
• LB(
)
(NW )

16. I/O proxy_temp
tmpfs
mkdir -p /tmpfs/proxy_temp
mount -t tmpfs -o size=200m /dev/shm /tmpfs/proxy_temp
ln -s /tmpfs/proxy_temp /usr/local/nginx_LB/proxy_temp
chown nobody:root /tmpfs/proxy_temp /usr/local/nginx_LB/proxy_temp

17. load
I/O(write)
traffic

18. • &
•
• lighttpd mod_compress
• Mysql ( )
※memory engine