gihnius/redis-failover-ruby

a simple redis failover in ruby

a redis automatic failover solution

redis = RedisHa.new act as the same as redis = Redis.new

for multi nodes redis (master + slaves)

  redis = RedisHa.new(:nodes => [
                                 {:host=>'master.redis', :port => 6379},
                                 {:host => 'slave1.redis',:port => 7379},
                                 {:host=>'slave2.redis', :port => 8379}])
  redis = RedisHa.new(:nodes => [
                                 {:host=>'master.redis', :port => 6379},
                                 {:host => 'slave1.redis',:port => 7379},
                                 {:host=>'slave2.redis', :port => 8379}],
                      :retry => :rotate,
                      :retry_interval => 30)

  # :retry => :rotate,  means retry repeat on all nodes.
  # :retry => :once, default :once, means retry on all nodes once only.

  ## log to stdout default
  redis = RedisHa.new(:log => '/var/log/redis_opts.log')

  redis.ping
  redis.set :a, "a string"
  redis.keys