3 ms·

Using Redis with Ruby on Rails

81 points by Jim_Neath 16y ago

phlux 16y ago
I would love to see performance info for a site running redis on top of FusionIO hardware.
- pjscott 16y ago
  Redis' usual mode of operation is to keep the dataset in memory, making the FusionIO SSD hardware kind of redundant. With the new diskstore back-end, though, and really fast solid state drives, I bet that Redis could be really fast with a data set much bigger than memory.
caiusdurling 16y ago
Nice intro piece. Especially liked the breakdown of data structures in redis, comparing them to Ruby.
andrewvc 16y ago
I actually like the redis-objects gem, which maps redis structures to ruby objects. https://github.com/nateware/redis-objects https://github.com/nateware/redis-objects
- Jim_Neath 16y ago
  I've never used redis-objects but it does look interesting. I'll have a play around with it tonight and update the post. Thanks for the heads up. Edit: updated.
- michaeldhopkins 16y ago
  Would you please explain why you prefer it to rb-redis?
  - andrewvc 16y ago
    redis-rb maps redis commands into the ruby namespace. redis-objects is built on top of redis-rb and creates objects that are backed by redis, with operations like push, pop, etc. cleanly mapped. In other words, it's a more ruby-like API. I recommend reading the github README for redis-objects, it goes into a lot of depth.
    - dasil003 16y ago
      The critical distinction of redis-objects is that it does not abstract away the atomic redis commands, which are the source of redis' power. It contrasts with ORMs where the goal is primarily convenience; with redis-objects the goal is power.
igorgue 16y ago
I really loved the "TL;DR: Redis is fucking awesome." I started using Redis for a project with Node, and I loved the node_redis library because it's non-blocking :-)
- tptacek 16y ago
  Redis is absolutely beautiful for async networking; the protocol is extremely straightforward. It has completely solved my problem of persisting data from EventMachine programs in Ruby, too. A couple hundred lines of ObjC got a generic Redis client and a special-purpose blpop client working for my Cocoa apps (I keep libevent in a thread there).
- koudelka 16y ago
  I'm working on bringing em-hiredis up to spec. If you want a similarly non-blocking ruby alternative. https://github.com/koudelka/em-hiredis https://github.com/koudelka/em-hiredis

81 points by Jim_Neath 16y ago

phlux 16y ago

I would love to see performance info for a site running redis on top of FusionIO hardware.

pjscott 16y ago
Redis' usual mode of operation is to keep the dataset in memory, making the FusionIO SSD hardware kind of redundant. With the new diskstore back-end, though, and really fast solid state drives, I bet that Redis could be really fast with a data set much bigger than memory.

caiusdurling 16y ago

Nice intro piece. Especially liked the breakdown of data structures in redis, comparing them to Ruby.

andrewvc 16y ago

I actually like the redis-objects gem, which maps redis structures to ruby objects. https://github.com/nateware/redis-objects https://github.com/nateware/redis-objects

Jim_Neath 16y ago
I've never used redis-objects but it does look interesting. I'll have a play around with it tonight and update the post. Thanks for the heads up. Edit: updated.
michaeldhopkins 16y ago
Would you please explain why you prefer it to rb-redis?
- andrewvc 16y ago
  redis-rb maps redis commands into the ruby namespace. redis-objects is built on top of redis-rb and creates objects that are backed by redis, with operations like push, pop, etc. cleanly mapped. In other words, it's a more ruby-like API. I recommend reading the github README for redis-objects, it goes into a lot of depth.
  - dasil003 16y ago
    The critical distinction of redis-objects is that it does not abstract away the atomic redis commands, which are the source of redis' power. It contrasts with ORMs where the goal is primarily convenience; with redis-objects the goal is power.

igorgue 16y ago

I really loved the "TL;DR: Redis is fucking awesome." I started using Redis for a project with Node, and I loved the node_redis library because it's non-blocking :-)

tptacek 16y ago
Redis is absolutely beautiful for async networking; the protocol is extremely straightforward. It has completely solved my problem of persisting data from EventMachine programs in Ruby, too. A couple hundred lines of ObjC got a generic Redis client and a special-purpose blpop client working for my Cocoa apps (I keep libevent in a thread there).
koudelka 16y ago
I'm working on bringing em-hiredis up to spec. If you want a similarly non-blocking ruby alternative. https://github.com/koudelka/em-hiredis https://github.com/koudelka/em-hiredis