Scaling WooCommerce for high transaction volume. Hardware, software and overview of special "Window Shopping Technique".

1. @rahul286 #wcmumbai
Scaling WooCommerce

2. - Blogger
- First rtCamper
- Obsessed with speed
About me

3. 1. Blogger
2. rtCamper
3. Husband
4. Father
5. Sandwich-wala
Sandwich-wala

4. State of the Word

5. State of the WordPress
Caching

6. Typical Architecture!

7. Typical Architecture!
Handle (almost) entire load at
NGINX Level

8. WooCommerce @ NGINX level
- Output depends on customers
- Same URL, different output
- /cart/
- /checkout/
- /my-account/
- /* (user specific element in header,

10. At each tier
Scaling WooCommerce

11. NGINX

15. - If your theme has user-specific elements in
header/footer/sidebar, ajaxify them
- If you cannot ajaxify, use “Window Shopping
Technique”
NGINX - Cache Product Pages

16. NOT trademarked!
Window Shopping
Technique

17. ¯_(ツ)_/¯

18. 1. Start with entire site cached
2. Monitor woocommerce cookie for cart items
3. As soon as a visitor adds something to cart,
start bypassing cache for them only.
http://rt.cx/wcwst
Window Shopping Technique

19. - Faster site for folks who are “Just Looking”
- Can handle more traffic, specially spikes!
But... What about folks who are actually buying?
NGINX Tier Summary

20. PHP

21. Easy Part
1. WordPress Object Cache FTW!
a. https://wordpress.org/plugins/redis-cache/
b. Object cache also speed-up Transients API
c. ee site create/update example.com --wpredis
2. PHP7
a. ee site create/update example.com --php7

22. Tough Part
1. Architecture
a. AJAX
b. AngularJS/React
2. Code Quality
a. Fast and readable (in order)
b. Debug - Like A Hero

23. MySQL

24. 1. SSD. Always. Period. One more Period.
2. RAM > mysql database size
3. CPU cores (enough of them)
Hardware

25. Software
1. Slow Query (ee debug --mysql)
2. ElasticSearch - elasticpress-woocommerce
3. WordPress Object Cache Again
4. MySQLTuner

26. 10071

27. WooCommerce 3.0
https://github.
com/woothemes/woocommerce/issues/10071
Get Involved!

28. Sorry no demo this time :|
Thank You!

29. @rahul286 #wcmumbai
Q & A