Github user rmetzger commented on a diff in the pull request:
https://github.com/apache/flink/pull/2899#discussion_r90234726
--- Diff: flink-dist/src/main/flink-bin/conf/log4j.properties ---
@@ -16,14 +16,26 @@
# limitations under the License.
################################################################################
+# This affects logging for both user code and Flink
log4j.rootLogger=INFO, file
+# Uncomment this if you want to _only_ change Flink's logging
+#log4j.logger.org.apache.flink=INFO
+
+# The following lines keep the log level of common libraries/connectors on
+# log level INFO. The root logger does not override this. You have to
manually
+# change the log levels here.
+log4j.logger.akka=INFO
+log4j.logger.org.apache.kafka=INFO
+log4j.logger.org.apache.hadoop=INFO
--- End diff --
We are not relocating Hadoop, so this configuration line is correct.
As you can see from our logs (the first line usually):
`org.apache.hadoop.util.NativeCodeLoader`
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