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Black Friday Business Rescue | @CloudExpo #APM #BigData #Microservices
Black Friday and Cyber Monday are the most important days in the retailer’s year
Dec. 21, 2015 03:45 AM
Last-Minute Black Friday Business Rescue and Cyber Monday Readiness
In order to be ready for the Christmas season, online retailers typically bring their shops into shape right before Black Friday. Together with Cyber Monday this is the most important day in the retailer's year.
Stilnest.com (@Stilnest) is a publishing house for designer jewelry, running their online shop on Magento. While the guys at Stilnest did a good job of preparing their environment, the interest in their products and, therefore, the traffic on their site, was much higher than expected. The shop even went down after one of the YouTube stars released a new video showing off her new jewelry line powered by Stilnest.
In this classical "War Room" situation I worked together with Stilnest to find the root cause(s). Good news is that we worked out a solution and brought the shop online again - just in time for Black Friday. This blog summarizes the technical details on what went wrong in their case. I hope you find this useful and may start checking your own environment - the holiday shopping season is not yet over:
A Quick Overview of Their Environment
What They Did to Prepare for Black Friday
Then ensure your auto scaling group in EC2 is configured properly. Several metrics can be perfectly used for this purpose, like CPU and memory consumption. But there are more relevant metrics that you should consider:
APM tools like Dynatrace provide these data in a most convenient way to use them in the EC2 auto scaling criteria.
These charts demonstrate the scaled environment under different load conditions:
Web requests over time
Server instances at low load
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