oak-run/src/main/resources/logback-datastore.xml

<?xml version="1.0" encoding="UTF-8"?>
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  ~ 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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  ~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  ~ KIND, either express or implied.  See the License for the
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<configuration scan="true" scanPeriod="1 second">

  <appender name="datastore" class="ch.qos.logback.core.FileAppender">
    <file>${oak.workDir}/datastore.log</file>
    <encoder>
      <pattern>%d{dd.MM.yyyy HH:mm:ss.SSS} %-5(*%level*) [%thread] %logger{30} %marker- %msg %n</pattern>
    </encoder>
  </appender>

  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
    <target>System.out</target>
    <encoder>
      <pattern>%d{dd.MM.yyyy HH:mm:ss.SSS} %-5(*%level*) [%thread] %logger{30} %marker- %msg %n</pattern>
    </encoder>
  </appender>

  <!-- For datastore operations -->
  <logger name="org.apache.jackrabbit.oak.blob" level="INFO">
    <appender-ref ref="STDOUT" />
  </logger>
  <logger name="org.apache.jackrabbit.oak.plugins.blob" level="INFO">
    <appender-ref ref="STDOUT" />
  </logger>
  <logger name="org.apache.jackrabbit.core.data" level="INFO">
    <appender-ref ref="STDOUT" />
  </logger>
  <logger name="org.apache.jackrabbit.oak.run" level="INFO">
    <appender-ref ref="STDOUT" />
  </logger>

  <logger name="org.apache.jackrabbit.oak.spi.cluster" level="INFO">
    <appender-ref ref="STDOUT" />
  </logger>


  <root level="INFO">
    <appender-ref ref="datastore" />
  </root>

</configuration>