This is something that sounds crazy, but it is nevertheless a reality: all the movies and series available on Netflix are actually stored at Amazon.
In a publication dating from the end of December 2020, Netflix explains in outline, the architecture of its streaming platform.
All of Netflix’s data is stored on Amazon S3 (or Amazon Simple Storage Service), allowing incomparable flexibility with its own infrastructure.
On this substrate, Netflix has designed a tool for allocating customer requests, ensuring a high level of performance and evenly distributed between the different interactions with the databases, called ETLs (for Extract Transform and Load)
Called AutOptimize, this tool is in fact a way to define centralized optimization methods, which can then be replicated on specific ETLs, for which the individual optimization effort would have been too complex.
Beyond the technical performance, Netflix in fact explains how it is possible to integrate petabytes of data on a daily basis, while ensuring a good level of accessibility of the whole.
https://netflixtechblog.com/optimizing-data-warehouse-storage-7b94a48fdcbe
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