Hi, since amazon web service need to pay, so just wanna ask ppl who had worked on it before i jump into it, and confirm some knowledge about it.
Question one: In Amazon auto scaling service, it says can scale up and down instances. that does this mean?
does it mean changing the type of instance? or can start/stop more/less instance base on the condition define?
Question two: can the auto scaling framework work with map reduce?
for example, if i have a extreme case, i will have endless tasks, and the time to finish the task will be vary, and might be very computation intensive. so can i use auto scaling service to scale the map reduce?
Thanks