{"id":6634,"date":"2018-08-02T19:51:44","date_gmt":"2018-08-02T14:21:44","guid":{"rendered":"https:\/\/www.konstantinfo.com\/blog\/?p=6634"},"modified":"2018-08-21T20:38:57","modified_gmt":"2018-08-21T15:08:57","slug":"auto-scaling-what-it-is-how-it-works-and-how-to-implement-it","status":"publish","type":"post","link":"https:\/\/www.konstantinfo.com\/konstant-blog\/auto-scaling-what-it-is-how-it-works-and-how-to-implement-it\/","title":{"rendered":"Auto Scaling: What it is, How it Works, and How to Implement it"},"content":{"rendered":"

Jatin sharma- senior developer<\/strong> at the firm took quite an exhaustive session on Auto Scaling that delivered both conceptual clarity and hands on experience. The session remained fruitful for all the participants and he also received a token of appreciation from our project manager. Here\u2019s an outline:”<\/em><\/p>\n

On 28 February 2017, almost every news outlet published a common headline- Amazon broke the Internet.<\/em> Services like Instagram, Quora, Slack, American Airlines, and many others were all completely or partially inaccessible to a large number of users and while the mayhem lasted for only around four hours, it gave a rare glimpse into how robust and sophisticated the Internet has become. After all, applications facing downtime or crashing under high traffic used to be the norm and not something that made headlines. The credit for most part goes to auto scaling.<\/p>\n

As you would guess, all those applications relied on the same cloud service provider- AWS. In fact, from Netflix and NASA to newborn startups, it powers a large chunk of the Internet and while it offers services across many categories, we are interested in its one particular service i.e. EC2 (Elastic Cloud Compute). In its most rudimentary form, they are servers larger than football fields that contain millions of resource instances that users can hire depending on their workload.<\/p>\n

Now because the workload isn\u2019t consistent, businesses struggle to determine their exact requirement. That\u2019s where Auto Scaling steps in.<\/p>\n

Auto Scaling<\/h2>\n

Computing resources are today cheaper than ever but they are still not free. Renting too little resources puts your application at risk under high traffic but renting too much is essentially paying for resources you would rarely use. This is precisely the problem that Auto Scaling solves. If you have large variations in your traffic, auto scaling offers the flexibility to add or remove capacity from your resource group in real-time as demand changes. Basically, you don\u2019t need to think about traffic, just set the lower and upper threshold and the system will automatically manage the corresponding resources.<\/p>\n

\"Auto<\/p>\n

Depending on your needs, auto scaling can be setup to optimize performance or cost or both by deploying appropriate scaling plans, which we will discuss in a moment.<\/p>\n

At point, the benefits of using auto scaling for any application are obvious:<\/p>\n