Github user jiangxb1987 commented on a diff in the pull request:
https://github.com/apache/spark/pull/22085#discussion_r210963181
--- Diff:
core/src/main/scala/org/apache/spark/api/python/PythonRunner.scala ---
@@ -381,6 +421,45 @@ private[spark] abstract class BasePythonRunner[IN,
OUT](
}
}
}
+
+ /**
+ * Gateway to call BarrierTaskContext.barrier().
+ */
+ def barrierAndServe(): Unit = {
--- End diff --
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