Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/19468#discussion_r152448480
--- Diff:
resource-managers/kubernetes/core/src/test/resources/log4j.properties ---
@@ -0,0 +1,31 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# Set everything to be logged to the file target/unit-tests.log
+log4j.rootCategory=INFO, file
+log4j.appender.file=org.apache.log4j.FileAppender
+log4j.appender.file.append=true
+log4j.appender.file.file=target/unit-tests.log
+log4j.appender.file.layout=org.apache.log4j.PatternLayout
+log4j.appender.file.layout.ConversionPattern=%d{yy/MM/dd HH:mm:ss.SSS} %t
%p %c{1}: %m%n
+
+# Ignore messages below warning level from a few verbose libraries.
+log4j.logger.com.sun.jersey=WARN
+log4j.logger.org.apache.hadoop=WARN
+log4j.logger.org.eclipse.jetty=WARN
+log4j.logger.org.mortbay=WARN
+log4j.logger.org.spark_project.jetty=WARN
--- End diff --
shall we also put these in `config/log4j.properties.template`?
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