Class: LoadBalancer::Hash

Inherits:
Algo
  • Object
show all
Defined in:
lib/multi_dbs_load_balancer/load_balancer/hash.rb

Instance Attribute Summary

Attributes inherited from Algo

#database_configs, #key, #redis

Instance Method Summary collapse

Methods inherited from Algo

#after_connected, #after_executed, #connected_to_next_db, #fail_over, #initialize, #warm_up

Methods included from Healthcheck

#db_available?, #mark_db_down, #mark_redis_down, #redis_available?

Methods included from RedisLua

eval_lua_script

Constructor Details

This class inherits a constructor from LoadBalancer::Algo

Instance Method Details

#next_db(**options) ⇒ Object 



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# File 'lib/multi_dbs_load_balancer/load_balancer/hash.rb', line 5

def next_db(**options)
    db_index = hash_to_index(**options)
    return @database_configs[db_index], db_index if db_available?(db_index)
    
    # fail over
    next_dbs = (db_index+1...db_index+@database_configs.size).map { |i| i % @database_configs.size }
    fail_over(next_dbs)
end