In this talk I want to share our story of taking part in the TV Show Die Höhle der Löwen (German version of shark tank). Giving a brief overview why we participated, looking behind the scenes and the overall background about the show. The main part shows how we prepared our Magento to stand the expected flood of visitors and keep the website running with a small startup budget. We'll look at how our solution looked liked and how it behaved during the peak. We'll close with up and down sides of this approach, the cost of this solution and how we use it today.

1. How to prepare your Magento for a
TV broadcast on a budget

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Benno Lippert
Founder mashtwo cobby.io
“Opportunities are to be found amidst difficulties.“
@bennolippert
Albert Einstein

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Brief history
• What is LIMBERRY
• Why did we participate

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LIMBERRY growth
• 25 Designer premium traditional German dresses
• since 2014 doubling numbers
• reaching our limits
• accelerate growth together with Investor
 Applying to praticipate in DHDL

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Challenges
• VOX briefs expected numbers (traffic)
• Meeting with maxcluster (hoster)
• Where are we now
• Performance limits
• Visitors
• Conversion
• Bugs

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VOX briefs expected numbers
• 2.5 Mio audience
• 15 minutes on screen
• possibly additional 5 minutes during promotion
• 100.000 users
• 500 orders

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Meeting with maxcluster (hoster)

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Where are we now
Testcases based on customer behaviour
Timespan in minutes 15
Visitors 100.000
Visit Homepage 1
Amount of visited categories 3
Amount of visited categories 6
Cart items 2
Customers who add to cart 65%
Amount of orders 500
Distribution guest orders 50%
Distribution account orders 50%

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Loadtesting

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Loadtesting
• http://www.eschrade.com/page/load-testing-the-magento-checkout-
with-jmeter/
• http://devdocs.magento.com/guides/m1x/ce18-ee113/EE113-
benchmark.html
• https://github.com/magento/magento-performance-toolkit

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Loadtesting

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Results
• Browsing Ok
• Cart sessions kill the server
• Rendering gets extremly slow
• Throughput too low

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Infrastructure

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Options / Strategy
• PHP 7
• adjust server setup
• outsource rendering
• optimize requesthandling
• outsource cart logic to client side
• cache all the things
• validate

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PHP 7
https://github.com/Inchoo/Inchoo_PHP7

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Additional Server

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Rendering
• Outsource to AWS
• Load balancer
• Save generated output in CDN

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Optimize request handling
• Media URL changed from www to cdn.limberry.de
• Outsourced media to CDN

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Local Cart
• Use local storage and JS for cart logic

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Local Cart
• Remove dynamic parts

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Local Cart
• Remove dynamic parts

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Local Cart
• Remove dynamic parts

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Local Cart
• Remove dynamic parts

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Local Cart
• Remove dynamic parts

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Local Cart
• JS for cart logic

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Local Cart
• JS for cart logic

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Local Cart
• JS for cart logic

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Local Cart
• JS for cart logic

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Local Cart
• Run warmup script (10min)

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Cache

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Validate

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Validate

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Validate

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Downsides
• No stock information
• Out of stock signup in cart
• Denial of Service
• Shoppimon gives errors
• Troubles HTTP/HTTPS mixed content
• No cart rules / coupons (on purpose)

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Downsides

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Downsides

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On air
• Mission Control
• Traffic

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Conclusion
• Traffic
• Investment / running costs
• Scalability

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Conclusion

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Conclusion

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Conclusion

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Conclusion

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Conclusion
• Tool we can reuse
• Doesn´t solve all problems
• Caching is always tricky
• Plain simple solid

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Questions?