Just One Pure Coder
快手 App 目前日活 1.5 亿，每天会产生数万亿规模的用户行为数据，对这些数据的高效探索是一件很有挑战同时也很有价值的工作。今天重点分享快手建设万亿级数据规模 OLAP 平台的设计方案以及主要改进过程。
本文重点介绍了知乎数据分析平台对 Druid 的查询优化。通过自研的一整套缓存机制和查询改造，该平台目前在较长的时间内，满足了业务固化的指标需求和灵活的分析需求，减少了数据开发者的开发成本。
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![[转]快手万亿级实时OLAP平台的建设与实践](http://www.mobabel.net/wp-content/themes/hueman/assets/front/img/thumb-medium-empty.png)