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Module: Redis::Commands::Cluster

Relationships & Source Files
Extension / Inclusion / Inheritance Descendants
Included In:
::Redis, ::Redis::Commands, ::Redis::MultiConnection, ::Redis::PipelinedConnection
Defined in: lib/redis/commands/cluster.rb

Instance Method Summary

Instance Method Details

#asking ⇒ String

Sends ASKING command to random node and returns its reply.

Returns:

  • (String) —

    'OK'

See Also:

[ GitHub ] 

  


# File 'lib/redis/commands/cluster.rb', line 30



def asking
  send_command(%i[asking])
end


  








  

    #cluster(subcommand, *args)  ⇒ Object 
  



  

    
Sends CLUSTER * command to random node and returns its reply.

  





    

    
Examples:

        
Per-slot usage stats for a range (Redis 8.2)

      
redis.cluster('slot-stats', 'SLOTSRANGE', 0, 100)
  # => [[0, {"key-count" => 1}], [1, {"key-count" => 0}], ...]

        
Top slots by key count (Redis 8.2)

      
redis.cluster('slot-stats', 'ORDERBY', 'key-count', 'LIMIT', 3, 'DESC')

  


Parameters:


    
  
  • 
    subcommand
    (String, Symbol)
—    
    the subcommand of cluster command
e.g. :slots, :nodes, :slaves, :info, :'slot-stats'
    
  
    • 



Returns:


    
  
  • 
    (Object)
—    
    depends on the subcommand
    
  
    • 


  
See Also:

  



  [ GitHub ]


  

  


# File 'lib/redis/commands/cluster.rb', line 20



def cluster(subcommand, *args)
  block = subcommand.to_s.downcase == 'slot-stats' ? HashifyClusterSlotStats : Noop
  send_command([:cluster, subcommand] + args, &block)
end