Question

我的顶点类型是：

org.apache.spark.rdd.RDD[((Long, String), (Long, String), (Long, String))]

我的边缘类型是：

org.apache.spark.rdd.RDD[(org.apache.spark.graphx.Edge[String],org.apache.spark.graphx.Edge[String])]

当我尝试使用Graph（顶点，边）时。

它说：

<console>:47: error: type mismatch;
 found   : org.apache.spark.rdd.RDD[((Long, String), (Long, String), (Long, String))]
 required: org.apache.spark.rdd.RDD[(org.apache.spark.graphx.VertexId, ?)]

<console>:47: error: type mismatch;
 found   : org.apache.spark.rdd.RDD[(org.apache.spark.graphx.Edge[String], org.apache.spark.graphx.Edge[String])]
 required: org.apache.spark.rdd.RDD[org.apache.spark.graphx.Edge[?]]

（Long String）是tuple2。

Answer 1

我认为你必须纠正你的顶点和边缘rdd。

顶点rdd它是一个rdd [（VertexId，vertexValueType）]

因此您必须将顶点rdd更改为：

org.apache.spark.rdd.RDD[(VertexId, ((Long, String), (Long, String), (Long, String)))]

和edge rdd它是一个rdd [Edge [edgeValueType]] 确实应该是这样的：

org.apache.spark.rdd.RDD[org.apache.spark.graphx.Edge[String]]

也许您可以在实际创建此rdds的地方发布代码？

graphX无法绘制多个边和顶点的图形？

1 个答案: