when the size of the graph is huge(0.2 billion vertex, 6 billion edges), the srcAttr and dstAttr in graph.triplets don't update when using the Graph.outerJoinVertices(when the data in vertex is changed).
the code and the log is as follows: g = graph.outerJoinVertices()... g,vertices,count() g.edges.count() println("example edge " + g.triplets.filter(e => e.srcId == 5000000001L).collect() .map(e =>(e.srcId + ":" + e.srcAttr + ", " + e.dstId + ":" + e.dstAttr)).mkString("\n")) println("example vertex " + g.vertices.filter(e => e._1 == 5000000001L).collect() .map(e => (e._1 + "," + e._2)).mkString("\n")) the result: example edge 5000000001:0, 2467451620:61 5000000001:0, 1962741310:83 // attr of vertex 5000000001 is 0 in Graph.triplets example vertex 5000000001,2 // attr of vertex 5000000001 is 2 in Graph.vertices when the graph is smaller(10 million vertex), the code is OK, the triplets will update when the vertex is changed