def __init__(self): 
		self.failures = 0
		self.num_completed = 0
		self.active_threads = 0 
		self.num_started = 0 
		self.threads = {} 

		# individual failure counts
		self.failure_timeouts = 0
		self.failure_no_route = 0
		self.failure_conn_refused = 0
		self.failure_conn_reset = 0
		self.failure_dns = 0 
		self.failure_ssl_alert = 0
		self.failure_socket = 0
		self.failure_other = 0