摘要：
顶点：VertexRDD边：EdgeRDD、Edge、EdgeDirectionTriplet：EdgeTriplet存储：PartitionStrategy通常的存储方式有两种：切边或切顶点，GraphX用的是切顶点，有四种存储方式：EdgePartition2DEdgePartition1DRa... 阅读全文
摘要：
1 OverviewGraphX is a new component in Spark for graphs and graph-parallel computation. At a high level, GraphX extends the Spark RDD by introducing a... 阅读全文
摘要：
1 OverviewSpark Streaming is an extension of the core Spark API that enables scalable, high-throughput, fault-tolerant stream processing of live data ... 阅读全文
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1 OverviewSpark SQL is a Spark module for structured data processing. It provides a programming abstraction called DataFrames and can also act as dist... 阅读全文
摘要：
1、RDD是Resilient Distributed Dataset（即"弹性分布式数据”）的缩写，它是Spark中的基本抽象类，包含在所有RDD中存在的基本操作：map、filter、persist。immutable：不可变的；implicit conversion：隐式变换；propagat... 阅读全文