Github user kayousterhout commented on a diff in the pull request:
https://github.com/apache/spark/pull/6750#discussion_r33991686
--- Diff: core/src/main/scala/org/apache/spark/SparkException.scala ---
@@ -30,3 +30,13 @@ class SparkException(message: String, cause: Throwable)
*/
private[spark] class SparkDriverExecutionException(cause: Throwable)
extends SparkException("Execution error", cause)
+
+/**
+ * Exception indicating an error internal to Spark -- it is in an
inconsistent state, not due
+ * to any error by the user
+ */
+class SparkIllegalStateException(message: String, cause: Throwable)
--- End diff --
I'd prefer to stick with the existing strategy, which is to use
IllegalStateExceptions and introduce this new exception in a separate PR (my
understanding is that we do currently use IllegalStateExceptions only for
things that aren't the user's fault; if not, agree with your sentiment that it
would be nice to clean that up, but not as part of this PR).
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