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窗口概念 Windows are at the heart of processing infinite streams(无界流). Windows split the stream into “buckets” of finite (有限的)size, over which we can appl 阅读全文
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分层抽象 The lowest level abstraction simply offers stateful streaming. It is embedded into the DataStream API via the Process Function. It allows users f 阅读全文
摘要:
Hive架构 Figure 1 also shows how a typical query flows through the system. 图一显示一个普通的查询是如何流经Hive系统的。 The UI calls the execute interface to the Driver (st 阅读全文