app-packages/accumulo/package/files/monitor_logger.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
  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

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  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.
-->
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">

  <!-- Write out everything at the DEBUG level to the debug log -->
  <appender name="A2" class="org.apache.log4j.RollingFileAppender">
     <param name="File"           value="${org.apache.accumulo.core.dir.log}/${org.apache.accumulo.core.application}_${org.apache.accumulo.core.ip.localhost.hostname}.debug.log"/>
     <param name="MaxFileSize"    value="100MB"/>
     <param name="MaxBackupIndex" value="10"/>
     <param name="Threshold"      value="DEBUG"/>
     <layout class="org.apache.log4j.PatternLayout">
       <param name="ConversionPattern" value="%d{ISO8601} [%-8c{2}] %-5p: %X{application} %m%n"/>
     </layout>
  </appender>

  <!--  Write out INFO and higher to the regular log -->
  <appender name="A3" class="org.apache.log4j.RollingFileAppender">
     <param name="File"           value="${org.apache.accumulo.core.dir.log}/${org.apache.accumulo.core.application}_${org.apache.accumulo.core.ip.localhost.hostname}.log"/>
     <param name="MaxFileSize"    value="100MB"/>
     <param name="MaxBackupIndex" value="10"/>
     <param name="Threshold"      value="INFO"/>
     <layout class="org.apache.log4j.PatternLayout">
       <param name="ConversionPattern" value="%d{ISO8601} [%-8c{2}] %-5p: %X{application} %m%n"/>
     </layout>
  </appender>

  <!-- Keep the last few log messages for display to the user -->
  <appender name="GUI" class="org.apache.accumulo.server.monitor.LogService">
     <param name="keep"           value="40"/>
     <param name="Threshold"      value="WARN"/>
  </appender>

  <!-- Log accumulo messages to debug, normal and GUI -->
  <logger name="org.apache.accumulo" additivity="false">
     <level value="DEBUG"/>
     <appender-ref ref="A2" />
     <appender-ref ref="A3" />
     <appender-ref ref="GUI" />
  </logger>

  <!-- Log non-accumulo messages to debug, normal logs. -->
  <root>
     <level value="INFO"/>
     <appender-ref ref="A2" />
     <appender-ref ref="A3" />
  </root>

</log4j:configuration>