cloud-fan commented on a change in pull request #25134: [SPARK-28366][CORE]
Logging in driver when loading single large unsplittable file
URL: https://github.com/apache/spark/pull/25134#discussion_r310128421
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File path: core/src/main/scala/org/apache/spark/internal/config/package.scala
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@@ -1180,6 +1180,14 @@ package object config {
.intConf
.createWithDefault(1)
+ private[spark] val IO_WARNING_LARGEFILETHRESHOLD =
+ ConfigBuilder("spark.io.warning.largeFileThreshold")
+ .internal()
+ .doc("When spark loading one single large file, if file size exceed this
" +
+ "threshold, then log warning with possible reasons.")
+ .longConf
+ .createWithDefault(1024 * 1024 * 1024)
Review comment:
people may set it to Long.Max to disable the warning. Besides, an internal
config doesn't hurt. I think we have many internal configs that users will
never set.
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