The Ruby Toolbox - Know your options!

ar-octopus

1.45
This gem allows you to use sharded databases with ActiveRecord. This also provides a interface for replication and for running migrations with multiples shards.
 Popularity
Downloads
1,229,273
Stars
2,113
Forks
361
Watchers
69
 Releases
Total releases
54
First release
Latest release

db-charmer

0.42
DbCharmer is a Rails plugin (and gem) that could be used to manage AR model connections, implement master/slave query schemes, sharding and other magic features many high-scale applications need.
 Popularity
Downloads
267,111
Stars
625
Forks
115
Watchers
37

technoweenie/masochism

0.26
ActiveRecord connection proxy for master/slave connections
 Popularity
Stars
252
Forks
38
Watchers
6

multi_db

0.16
Connection proxy for ActiveRecord for single master / multiple slave database deployments
 Popularity
Downloads
115,239
Stars
144
Forks
62
Watchers
5

activerecord-turntable

0.11
ActiveRecord sharding extension
 Popularity
Downloads
58,957
Stars
168
Forks
28
Watchers
24

data_fabric

0.1
Sharding and replication support for ActiveRecord
 Popularity
Downloads
49,383
Stars
190
Forks
18
Watchers
2

mixonic/ShardTheLove

0.02
Horizontal scaling for your Rails or Merb app. Built on ActiveRecord.
 Popularity
Stars
24
Forks
3
Watchers
3