Guide - Kafka Appender Removed

Table of Contents

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Product To Version



1 Introduction

The Kafka Appender was used to store logs directly at Kafka queues. With K8s all logs will printed to standard out. JSON format and the Kafka Appender are no longer used.

Some implementation partners want to use Kafka as messaging platform and get library conflicts with our Kafka Appender. Therefore the Kafka Appender was removed.

2 Migration

In case the Kafka Appender is used at projects, please add the following configuration to a custom cartridge:

dependencies {
    runtime 'com.github.danielwegener:logback-kafka-appender'
or with version
    runtime 'com.github.danielwegener:logback-kafka-appender:0.1.0'

Original logback extension for Kafka Appender at folder staticfiles/cartridge/logback:

<?xml version="1.0" encoding="UTF-8" ?>
<!-- In order to log into kafka use property intershop.logging.configurationfile.main=logback-kafka.xml 
	intershop.logging.configurationfile.dbinit=logback-kafka.xml -->


	<property name="intershop.CICLayout"
		value="[%date{yyyy-MM-dd HH:mm:ss.SSS Z}] %-5level ${intershop.HostName} ${intershop.InstallationID} ${intershop.ServerName} [%mdc{requestsite}] [%mdc{requestapplication}] %logger [%marker] [%mdc{request.type}] [%mdc{}] [%mdc{request.uuid}] "%thread" %msg %ex%n%mdc{}" />

	<!-- Kafka appender definition -->
	<appender name="kafkaAppender"
		<!-- This is the default encoder that encodes every log message to an utf8-encoded 
			string -->
			<layout class="ch.qos.logback.classic.PatternLayout">
				<pattern>[%date{yyyy-MM-dd HH:mm:ss.SSS Z}] %-5level
					${intershop.HostName} ${intershop.InstallationID}
					${intershop.ServerName} [%mdc{requestsite}]
					[%mdc{requestapplication}] %logger [%marker] [%mdc{request.type}]
					[%mdc{}] [%mdc{request.uuid}] "%thread" %msg
			class="com.github.danielwegener.logback.kafka.keying.RoundRobinKeyingStrategy" />
			class="" />

		<!-- each <producerConfig> translates to regular kafka-client config (format: 
			key=value) -->
		<!-- producer configs are documented here: -->
		<!-- bootstrap.servers is the only mandatory producerConfig -->

	<!-- Define default appender because they might be used as references  -->
	<appender name="Error" class="ch.qos.logback.core.helpers.NOPAppender">
	<appender name="Warn" class="ch.qos.logback.core.helpers.NOPAppender">
	<appender name="ImpexError" class="ch.qos.logback.core.helpers.NOPAppender">
	<appender name="Job" class="ch.qos.logback.core.helpers.NOPAppender">

	<!-- Log everything using the kafkaAppender -->
	<root level="INFO">
		<appender-ref ref="kafkaAppender" />

	<logger name="org">
		<level value="INFO" />

	<logger name="javax">
		<level value="INFO" />

	<logger name="java.awt">
		<level value="INFO" />

	<logger name="tomcat">
		<level value="INFO" />

	<logger name="sun">
		<level value="INFO" />

	<logger name="com.sun">
		<level value="INFO" />

	<logger name="org.apache.catalina.startup.Catalina">
		<level value="INFO" />

	<logger name="org.apache.jasper.compiler.Compiler" additivity="false">
		<level value="INFO" />

	<!-- avoid error messages from sandesha startup Message "Could not load 
		module policies. Using default values." -->
	<logger name="org.apache.sandesha2.SandeshaModule" additivity="false">
		<level value="OFF" />



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