Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/5791#discussion_r29492392
--- Diff: core/src/main/scala/org/apache/spark/SparkContext.scala ---
@@ -343,6 +343,15 @@ class SparkContext(config: SparkConf) extends Logging
with ExecutorAllocationCli
value
}
+ /** Control our logLevel. This overrides any user-defined log settings.
+ * @param logLevel The desired log level as a string.
+ * Valid log levels include: ALL, DEBUG, ERROR, FATAL, INFO, OFF, TRACE,
WARN
+ * Invalid log level defaults to DEBUG
--- End diff --
Yes - I'm suggesting that before you pass anything to log4j we make sure
it's one of the valid logging levels. Therefore, the default behavior of
log4j's `toLevel` will be irrelevant.
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