Overview Millions of people every day go to the Avito portal to sell or buy almost anything they want: from digital technology and clothing to cars or real estate. Advertisements are posted by individuals, entrepreneurs and companies, so people can buy both used goods and brand new products. Challenge Avito, the number-one classifieds site in Russia, wanted to collect and save all its busi ness-related data. Big Data has become part of day-to-day reality for the company, and is instrumental to its success. Avito employees handle both gigantic volumes of information and endless streams of many types of complex data on a daily basis. Data is currently sourced from 26 different systems, including the main website and other online projects (such as Domofond.ru), the CRM syste

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