Caching with Nginx. You Can Run Faster!

Starting from caching concepts I will jump quickly in to available Nginx caching directives.
I will explain why they are useful and how you can profit from them.
Armored with this knowledge we will fight our way through a real world Nginx caching example.

Get the full Nginx caching tutorial on my blog: http://czerasz.com/2015/03/30/nginx-caching-tutorial/

Transcript

1. You Can Run Faster! Caching with .
2. Introduction
4. The Caching Concept
5. Initial Situation
6. The Caching Concept
7. The Caching Concept
8. The Caching Concept
9. The Caching Concept
10. Caching with Nginx
11. Caching with Nginx
12. Caching with Nginx
20. Nginx Cache Configuration
21. Configuration - Available Directives proxy_cache_path /data/nginx/cache keys_zone=zone_name_one:10m; proxy_cache zone_name_one;
22. Configuration - Available Directives proxy_cache_path /data/nginx/cache keys_zone=one:10m max_size=200m; proxy_cache_path /data/nginx/cache keys_zone=one:10m inactive=60m;
23. Configuration - Available Directives proxy_cache_path /data/nginx/cache levels=1:2 keys_zone=one:10m;
24. Quiz
25. Quiz - Solution proxy_cache_path /data/nginx/cache levels=2:4 keys_zone=one:10m;
26. What/When to cache? proxy_cache_methods GET HEAD POST; proxy_cache_min_uses 5; proxy_cache_revalidate on;
27. How to cache? proxy_cache_key "$host$request_uri$cookie_user"; proxy_cache_key "$scheme$proxy_host$uri$is_args$args";
28. How to generate a Nginx cache hash key? echo -n "httpczerasz.com/time.php" | md5sum
29. When not to cache? proxy_no_cache $http_pragma $http_authorization $cookie_nocache $arg_nocache;
30. How long to cache? proxy_cache_valid any 1m; proxy_cache_valid 200 302 10m;
31. How long to cache?
32. Other Configuration Options proxy_cache_use_stale error timeout; proxy_cache_lock on; proxy_temp_path /tmp/custom_cache/;
33. Debugging Nginx's Cache
34. Debugging Nginx's Cache map $remote_addr $cache_status { 127.0.0.1 $upstream_cache_status; default ""; } ... add_header X-Cache-Status $cache_status;
35. MISS Object was not found in the cache. Response was served from the origin. Response may have been saved to cache. BYPASS Got response from upstream. Response may have been saved to cache. EXPIRED Cached object has expired. Response was served from the upstream. STALE Object served from cache because of issues with origin server response UPDATING Serve stale content from cache because proxy_cache_lock has timed out and proxy_use_stale takes control REVALIDATED proxy_cache_revalidate verified that the current cached content was still valid HIT The object was found in the cache and it is served from there
36. Cache Loader proxy_cache_path /data/nginx/cache keys_zone=one:10m [loader_files=number] [loader_sleep=time] [loader_threshold=time];
37. Cache Manager proxy_cache_path /data/nginx/cache keys_zone=one:10m max_size=200m;
38. Example How to create a small CDN with Nginx?
40. Muchas Gracias