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<appender name="MQTT-MESSAGE-LOG-FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${hivemq.log.folder}/mqtt-message.log</file>
<append>true</append>
<encoder>
<pattern>%-30(%d %level)- %msg%n%ex</pattern>
</encoder>
<rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
<fileNamePattern>${hivemq.log.folder}/mqtt-message.%d{yyyy-MM-dd}.%i.log.gz</fileNamePattern>
<minIndex>1</minIndex>
<maxIndex>5</maxIndex>
</rollingPolicy>
<triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
<maxFileSize>100MB</maxFileSize>
<checkIncrement>10000</checkIncrement>
</triggeringPolicy>
</appender> |
The following example logger configuration adds the required logger.
Example MQTT Message Log extension logger configuration
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<logger name="com.hivemq.extensions.log.mqtt" level="DEBUG" additivity="false">
<appender-ref ref="MQTT-MESSAGE-LOG-FILE"/>
</logger> |
| Info |
|---|
In the logger configuration, the |
Extension Log File Verification
To verify creation of the extension log file, go to the log folder of your HiveMQ installation. Based on the scanPeriod that is set in the logback.xml file in your conf folder, HiveMQ scans the changes and updates your configuration. If you have disabled automatic scanning (scan=false), you must restart HiveMQ to apply the changes.
...
Open the mqtt-message.log file and confirm that an extension start entry or other INFO entries are visible.
| Code Block |
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INFO - HiveMQ MQTT Message Log Extension: Will try to read config properties from mqttMessageLog.properties 2024-01-20 18:39:57,455 INFO - HiveMQ MQTT Message Log Extension: Properties initialized to: {subscribe-received=true, pubcomp-send=true, unsuback-send=true, topic-regex=, client-regex=, pubcomp-received=true, client-disconnect=true, puback-received=true, connack-send=true, publish-send=true, suback-send=true, unsubscribe-received=true, pubrec-send=true, pubrec-received=true, verbose=false, ping-request-received=true, pubrel-send=true, client-connect=true, publish-received=true, ping-response-send=true, puback-send=true, pubrel-received=true} |
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