diff --git a/graphx/src/main/scala/org/apache/spark/graphx/Graph.scala b/graphx/src/main/scala/org/apache/spark/graphx/Graph.scala index 23538b71562de30379a0b9fd0bf83e7b02a9d4aa..84b72b390ca35fa6b112bce6c6a03a4071484631 100644 --- a/graphx/src/main/scala/org/apache/spark/graphx/Graph.scala +++ b/graphx/src/main/scala/org/apache/spark/graphx/Graph.scala @@ -104,6 +104,12 @@ abstract class Graph[VD: ClassTag, ED: ClassTag] protected () extends Serializab */ def checkpoint(): Unit + /** + * Uncaches both vertices and edges of this graph. This is useful in iterative algorithms that + * build a new graph in each iteration. + */ + def unpersist(blocking: Boolean = true): Graph[VD, ED] + /** * Uncaches only the vertices of this graph, leaving the edges alone. This is useful in iterative * algorithms that modify the vertex attributes but reuse the edges. This method can be used to diff --git a/graphx/src/main/scala/org/apache/spark/graphx/impl/GraphImpl.scala b/graphx/src/main/scala/org/apache/spark/graphx/impl/GraphImpl.scala index a617d84aea9d462daefe5563b8a85d6dd3649f67..3f4a900d5b60103d5329a281dca17aae1959d6b2 100644 --- a/graphx/src/main/scala/org/apache/spark/graphx/impl/GraphImpl.scala +++ b/graphx/src/main/scala/org/apache/spark/graphx/impl/GraphImpl.scala @@ -70,6 +70,12 @@ class GraphImpl[VD: ClassTag, ED: ClassTag] protected ( replicatedVertexView.edges.checkpoint() } + override def unpersist(blocking: Boolean = true): Graph[VD, ED] = { + unpersistVertices(blocking) + replicatedVertexView.edges.unpersist(blocking) + this + } + override def unpersistVertices(blocking: Boolean = true): Graph[VD, ED] = { vertices.unpersist(blocking) // TODO: unpersist the replicated vertices in `replicatedVertexView` but leave the edges alone