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Project Voldemort Blog : Building a terabyte-scale data cycle at LinkedIn with Hadoop and Project Voldemort
Many of LinkedIn’s products are critically dependent on computationally intensive data mining algorithms. Examples of these include some modules like People You May Know, Viewers of This Profile Also Viewed, and much of the Job matching functionality that we give to people who post jobs on the site. To support these data-intensive products we have begun to move many of the largest offline processing jobs to Hadoop.