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Where we cannot consider Auto Scaling?


  1. We must not consider Auto Scaling for Database Tier. It may not be applicable. It needs distributed architecture ; might be suitable for certain NoSQL DBs. Needs a test case prior to take decision for Production. 
  2. For very small EC2 instance we must not consider Auto Scaling. Rather a bit lager EC2 instance can fix the issue. 
  3. For very frequent changes, EC2 auto scaling may not be right choice. e.g: Cricket match update. Need to plan for CDN. 
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