# File lib/ec2/right_ec2.rb, line 402 def describe_instances(list=[]) link = generate_request("DescribeInstances", hash_params('InstanceId',list.to_a)) request_cache_or_info(:describe_instances, link, QEc2DescribeInstancesParser, @@bench, list.blank?) do |parser| get_desc_instances(parser.result) end rescue Exception on_exception end