 	first = results[0]
 	for result in results.slice(1)
 		if not _.isEqual(first, result)
+			logger.error results: results, "redis backend conflict"
 			Metrics.inc "backend-conflict"
 		else
 			Metrics.inc "backend-match"

for command, key_pos of COMMANDS
	do (command, key_pos) ->
		Client.prototype[command] = (args..., callback) ->
			jobs = @clients.map (client) ->
				(cb) ->
					key_builder = args[key_pos]

	constructor: (@clients) ->
	
	exec: (callback) ->
		primaryError = null
		primaryResult = null
		jobs = @clients.map (client) ->
			(cb) ->
				timer = new Metrics.Timer("redis.#{client.driver}.exec")
