Github user dding3 commented on a diff in the pull request:
https://github.com/apache/spark/pull/15125#discussion_r101938997
--- Diff: graphx/src/main/scala/org/apache/spark/graphx/Pregel.scala ---
@@ -122,27 +125,39 @@ object Pregel extends Logging {
require(maxIterations > 0, s"Maximum number of iterations must be
greater than 0," +
s" but got ${maxIterations}")
- var g = graph.mapVertices((vid, vdata) => vprog(vid, vdata,
initialMsg)).cache()
+ val checkpointInterval = graph.vertices.sparkContext.getConf
+ .getInt("spark.graphx.pregel.checkpointInterval", 10)
--- End diff --
I think so. Currently I add the document in graphx-programming-guide.md.
But I am not sure if it's the right place, please let me know if there is a
better place to add the document.
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