Dillon2015的博客

Using the parameters to spark-shell or spark-submit, we can ensure that memory and CPUs are available on the cluster for our application. But that doesn’t guarantee that all the available memory o

创建graphx 1、工厂方法apply 定义在Graph中，定义如下： def apply[VD, ED]( vertices: RDD[(VertexId, VD)], edges: RDD[Edge[ED]], defaultVertexAttr: VD = null) : Graph[VD, ED] 参数为两个RDD分别是RDD[(VertexId, VD)]、RDD[