Alberto Ordonez Pereira | Senior Staff Software Engineer; Lianghong Xu | Senior Manager, Engineering;This blog marks the first of a three-part series describing our journey at Pinterest transition from managing multiple online storage services supported by HBase to a brand new serving architecture with a new datastore and a unified storage service.In this introductory post, we will provide an overview of how HBase is used at Pinterest, why we decided to migrate away from it and the high-level ex...