nginx - Highload rails server with backgrounder architecture -


here task. every second backgrounder task should generate json based on data. operation not cpu intensive ( network) , generates json content (5-10kb). operations take 200ms.

also have 1000 clients asking content once every few seconds. let's it's 200 requests/sec.

server should output current actual json.

currently have rails 4+nginx+passenger+debian sever doing other jobs, related work.

being student want make server in cost-effective way having ability easy-scale in ways:

  1. adding few more backgrounder jobs, generating more json's
  2. increasing number of requests 10 000 per second

currently have linode 2048 ssd 2 cpu cores. questions are:

  1. what gem/solution should use backgrounder tasks ( written in ruby )
  2. how effectivly store actual json , pass backgrounder(s) rails/nginx.
  3. how make serving json fast possible.

you mentioned "server should output current actual json", guess json generation may not become bottleneck can cache memcache , serve memcache directly:

1) periodically background process -> dump data memcache (even gzip speed up)

2) user -> nginx -> memcache

see nginx memcache built in module http://nginx.org/en/docs/http/ngx_http_memcached_module.html

the bottleneck backend blocking mechanism, gil, io locks etc, try avoid these type of problems split request/response cycle intermediate memcache data point.


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