nifi-registry-core/nifi-registry-resources/src/main/resources/conf/logback.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
  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.
-->
<configuration scan="true" scanPeriod="30 seconds">
    <contextListener class="ch.qos.logback.classic.jul.LevelChangePropagator">
        <resetJUL>true</resetJUL>
    </contextListener>

    <appender name="APP_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${org.apache.nifi.registry.bootstrap.config.log.dir}/nifi-registry-app.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
            <!--
              For daily rollover, use 'app_%d.log'.
              For hourly rollover, use 'app_%d{yyyy-MM-dd_HH}.log'.
              To GZIP rolled files, replace '.log' with '.log.gz'.
              To ZIP rolled files, replace '.log' with '.log.zip'.
            -->
            <fileNamePattern>${org.apache.nifi.registry.bootstrap.config.log.dir}/nifi-registry-app_%d{yyyy-MM-dd_HH}.%i.log</fileNamePattern>
            <maxFileSize>100MB</maxFileSize>
            <!-- keep 30 log files worth of history -->
            <maxHistory>30</maxHistory>
            <!-- keep 10GB total of log files -->
            <totalSizeCap>10GB</totalSizeCap>
        </rollingPolicy>
        <immediateFlush>true</immediateFlush>
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            <pattern>%date %level [%thread] %logger{40} %msg%n</pattern>
        </encoder>
    </appender>

    <appender name="BOOTSTRAP_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${org.apache.nifi.registry.bootstrap.config.log.dir}/nifi-registry-bootstrap.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <!--
              For daily rollover, use 'user_%d.log'.
              For hourly rollover, use 'user_%d{yyyy-MM-dd_HH}.log'.
              To GZIP rolled files, replace '.log' with '.log.gz'.
              To ZIP rolled files, replace '.log' with '.log.zip'.
            -->
            <fileNamePattern>${org.apache.nifi.registry.bootstrap.config.log.dir}/nifi-registry-bootstrap_%d.log</fileNamePattern>
            <!-- keep 5 log files worth of history -->
            <maxHistory>5</maxHistory>
        </rollingPolicy>
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            <pattern>%date %level [%thread] %logger{40} %msg%n</pattern>
        </encoder>
    </appender>

    <appender name="EVENTS_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${org.apache.nifi.registry.bootstrap.config.log.dir}/nifi-registry-event.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <!--
              For daily rollover, use 'user_%d.log'.
              For hourly rollover, use 'user_%d{yyyy-MM-dd_HH}.log'.
              To GZIP rolled files, replace '.log' with '.log.gz'.
              To ZIP rolled files, replace '.log' with '.log.zip'.
            -->
            <fileNamePattern>${org.apache.nifi.registry.bootstrap.config.log.dir}/nifi-registry-event_%d.log</fileNamePattern>
            <!-- keep 5 log files worth of history -->
            <maxHistory>5</maxHistory>
        </rollingPolicy>
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            <pattern>%date ## %msg%n</pattern>
        </encoder>
    </appender>

    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            <pattern>%date %level [%thread] %logger{40} %msg%n</pattern>
        </encoder>
    </appender>
    
    <!-- valid logging levels: TRACE, DEBUG, INFO, WARN, ERROR -->
    
    <logger name="org.apache.nifi.registry" level="INFO"/>

    <!-- To see SQL statements set this to DEBUG -->
    <logger name="org.hibernate.SQL" level="INFO" />
    <!-- To see the values in SQL statements set this to TRACE -->
    <logger name="org.hibernate.type" level="INFO" />

    <!--
        Logger for capturing Bootstrap logs and NiFi Registry's standard error and standard out.
    -->
    <logger name="org.apache.nifi.registry.bootstrap" level="INFO" additivity="false">
        <appender-ref ref="BOOTSTRAP_FILE" />
    </logger>
    <logger name="org.apache.nifi.registry.bootstrap.Command" level="INFO" additivity="false">
        <appender-ref ref="CONSOLE" />
        <appender-ref ref="BOOTSTRAP_FILE" />
    </logger>

    <!-- Everything written to NiFi Registry's Standard Out will be logged with the logger org.apache.nifi.StdOut at INFO level -->
    <logger name="org.apache.nifi.registry.StdOut" level="INFO" additivity="false">
        <appender-ref ref="BOOTSTRAP_FILE" />
    </logger>

    <!-- Everything written to NiFi Registry's Standard Error will be logged with the logger org.apache.nifi.StdErr at ERROR level -->
    <logger name="org.apache.nifi.registry.StdErr" level="ERROR" additivity="false">
        <appender-ref ref="BOOTSTRAP_FILE" />
    </logger>

    <!-- This will log all events to a separate file when the LoggingEventHookProvider is enabled in providers.xml -->
    <logger name="org.apache.nifi.registry.provider.hook.LoggingEventHookProvider" level="INFO" additivity="false">
        <appender-ref ref="EVENTS_FILE" />
    </logger>

    <root level="INFO">
        <appender-ref ref="APP_FILE"/>
    </root>
    
</configuration>