Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/21342#discussion_r189753564
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/exchange/BroadcastExchangeExec.scala
---
@@ -111,12 +112,18 @@ case class BroadcastExchangeExec(
SQLMetrics.postDriverMetricUpdates(sparkContext, executionId,
metrics.values.toSeq)
broadcasted
} catch {
+ // SPARK-24294: To bypass scala bug:
https://github.com/scala/bug/issues/9554, we throw
+ // SparkFatalException, which is a subclass of Exception.
ThreadUtils.awaitResult
+ // will catch this exception and re-throw the wrapped fatal
throwable.
case oe: OutOfMemoryError =>
--- End diff --
Agreed; let's fix that separately.
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