Reducing server load with Redis

Note: I know I'm responding to someone who is probably already aware of this information, but the crashly slides are lite on the techniques technical side.

mattparlane• 14 years ago

There is nothing specific to MongoDB here.

Also, using appropriate cache headers and putting a Varnish cache in front of the Rack server would be far easier and faster and would also reduce the load on the Rack server itself. Oh, but then I couldn't say I created a DSL...

meritt• 14 years ago

There's also nothing specific to Redis here.

HN: Do we really need new articles demonstrating how caching works?

anderse• 14 years ago

Calling it a DSL is bit weird to me, it's a single instance method. You'd use the same kind of thing to set the appropriate caching headers for Varnish.

nchuhoai• 14 years ago

Leonid is bringing up some good points, but I was always wondering: How do you get to do auto-expiring page-caching.

While Leonid is right that Action Caching with Rails.cache is much easier to do, action caching still lets the request hit the stack, while it does not do so with this proposed solution. Page caching makes the expiration of the cache harder then this solution.

Question: It seems this solution has nearly the ease of action caching, but the performance gain like page caching. Is there a low-level gem/solution available to do something like this?

gingerlime• 14 years ago

I'm really not sure, so please don't shoot me if I'm wrong. I'd be happy to learn more/be proven wrong.

I think the redis-store cache in rails also uses a rack middleware, and supports setting ttl on keys which will auto-expire on redis...?

https://github.com/jodosha/redis-store/blob/master/redis-rac...

Reducing server load with Redis

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