log4j2を使用してログをKafkaに送信する

ログをKafkaトピックに送信するために、log4j2 Kafkaアペンダーを使用してみます。これが私のlog4j2.propertiesファイルです：

rootLogger.level=all
rootLogger.type=asyncRoot

logger.main.name=main
logger.main.level=all
logger.main.type=asyncLogger
logger.main.appenderRefs=stdout, kafka
logger.main.appenderRef.stdout.ref=STDOUT
logger.main.appenderRef.kafka.ref=KAFKA

appender.stdout.type=Console
appender.stdout.name=STDOUT
appender.stdout.layout.type=PatternLayout
appender.stdout.layout.pattern=[%d{yyyy-MM-dd HH:mm:ss.SSS}] [%level]\t[%marker] %msg%n

appender.kafka.type=Kafka
appender.kafka.name=KAFKA
appender.kafka.bootstrap.servers=urls:host
appender.kafka.topic=topic_name
appender.kafka.layout.type=PatternLayout
appender.kafka.layout.pattern="some pattern

この構成で自分を開始すると、例外で失敗しました：

スレッド「main」での例外org.apache.logging.log4j.core.config.ConfigurationException：org.apache.logging.log4j.core.config.properties.PropertiesConfigurationBuilder.createComponent（PropertiesConfigurationBuilder.java： 334）org.apache.logging.log4j.core.config.properties.PropertiesConfigurationBuilder.createAppender（PropertiesConfigurationBuilder.java：org.apache.logging.log4j.core.config.properties.PropertiesConfigurationBuilder.processRemainingProperties（PropertiesConfigurationBuilder.java:348）で225）org.apache.logging.log4j.core.config.properties.PropertiesConfigurationBuilder.build（PropertiesConfigurationBuilder.java:158）org.apache.logging.log4j.core.config.properties.PropertiesConfigurationFactory.getConfiguration（PropertiesConfigurationFactory.java： 52）org.apacheで。logging.log4j.core.config.properties.PropertiesConfigurationFactory.getConfiguration（PropertiesConfigurationFactory.java:35）at org.apache.logging.log4j.core.config.ConfigurationFactory $ Factory.getConfiguration（ConfigurationFactory.java:453）at org.apache。 logging.log4j.core.config.ConfigurationFactory $ Factory.getConfiguration（ConfigurationFactory.java:385）（org.apache.logging.log4j.core.config.ConfigurationFactory.getConfiguration（ConfigurationFactory.java:260）（org.apache.logging。） log4j.core.LoggerContext.reconfigure（LoggerContext.java:615）at org.apache.logging.logging.loggingj.core.LoggerContext.reconfigure（LoggerContext.java:636）at org.apache.logging.log4j.core.LoggerContext.start（ LoggerContext.java:231）org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext（Log4jContextFactory.java:243）org.apache.logging.log4j.core.impl。Log4jContextFactory.getContext（Log4jContextFactory.java:45）（org.apache.logging.log4j.LogManager.getContext（LogManager.java:174）（org.apache.logging.log4j.LogManager.getLogger（LogManager.java:648））（org） .apache.logging.log4j.LogManager.getRootLogger（LogManager.java:682）

なにが問題ですか？