Github user BenFradet commented on a diff in the pull request:
https://github.com/apache/spark/pull/10385#discussion_r48078831
--- Diff: docs/streaming-programming-guide.md ---
@@ -1415,6 +1415,95 @@ Note that the connections in the pool should be
lazily created on demand and tim
***
+## Accumulator and Broadcast
+
+Accumulator and Broadcast cannot be recovered from checkpoint in
Streaming. If you enable checkpoint and use Accumulator or Broadcast as well,
you have to create lazily instantiated singleton instances for Accumulator and
Broadcast so that they can be restarted on driver failures. This is shown in
the following example.
--- End diff --
I'd say: "in **Spark** Streaming. If you enable checkpoint**ing** and use
an Accumulator or Broadcast as well, you**'ll** have to create ..."
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