One of these was to load test multiple requests and, as expected, auto scaling kicked in creating multiple instances. However, despite the fact the request count is now running extremely low I find I cannot permenantly terminate the extra instances, as they keep being recreated.
The extra instances appeared in the load balancer and I could remove them from the load balancer but, again, only temporarily.
You can fix this issue by setting your Auto Scaling desired capacity back to 1 (right now it’s at 3 which is why killing the instances just results in Auto Scaling bringing up two more).
To do this you will need to download the Auto Scaling CLI (http://aws.amazon.com/developertools/2535) (or just PM me and I can do it for you) and use the API call to set the desired capacity.
hope this answers help you!!