This sets the maximum number of connection attempts made for each
	TCP connection. The connect_retries attempts must all still
	complete within the connection timeout period.

	The default is not to re-try if the first connection attempt fails.
	The (not recommended) maximum is 10 tries.

	A warning message will be generated if it is set to a too-high
	value and the configured value will be over-ridden.

	Note: These re-tries are in addition to forward_max_tries
	which limit how many different addresses may be tried to find
	a useful server.