log4j2.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
  ~ Copyright 2017, OpenSkywalking Organization All rights reserved.
  ~
  ~ Licensed 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.
  ~
  ~ Project repository: https://github.com/OpenSkywalking/skywalking
  -->

<Configuration status="debug">
    <Appenders>
        <Console name="Console" target="SYSTEM_OUT">
            <PatternLayout charset="UTF-8" pattern="%d - %c -%-4r [%t] %-5p %x - %m%n"/>
        </Console>
    </Appenders>
    <Loggers>
        <logger name="org.eclipse.jetty" level="INFO"/>
        <logger name="org.apache.zookeeper" level="INFO"/>
        <logger name="org.skywalking.apm.collector.agentstream.worker.storage.PersistenceTimer" level="debug"/>
        <logger name="io.grpc.netty" level="INFO"/>
        <Root level="debug">
            <AppenderRef ref="Console"/>
        </Root>
    </Loggers>
</Configuration>