Github user dding3 commented on a diff in the pull request:
https://github.com/apache/spark/pull/15125#discussion_r102067500
--- Diff: docs/graphx-programming-guide.md ---
@@ -708,7 +708,9 @@ messages remaining.
> messaging function. These constraints allow additional optimization
within GraphX.
The following is the type signature of the [Pregel
operator][GraphOps.pregel] as well as a *sketch*
-of its implementation (note calls to graph.cache have been removed):
+of its implementation (note: to avoid stackOverflowError due to long
lineage chains, graph and
--- End diff --
OK. I am thinking in the original graphx-programming-guide, only cache is
called. After we add do checkpointing and give notes we do that in the sketch,
do we need to show the information in the sketch. If there is an agreement on
remove all references to checkpoint, I will revert the changes.
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