MAPREDUCE服务 MRS-调测Kafka应用:运行结果观察方式

时间：2024-06-19 16:04:40

MAPREDUCE服务 MRS Kafka开发指南

运行结果观察方式

样例程序工程jar包运行结果可以在logs目录下的client.log观察，默认状态下的log4j.properties没有将运行状态输出，若需要观察程序运行的信息，需将log4j.properties按如下方式配置：

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# this work for additional information regarding copyright ownership.
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kafka.logs.dir=logs

log4j.rootLogger=INFO, stdout, kafkaAppender 

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=[%d] %p %m (%c)%n

log4j.logger.kafka=INFO, kafkaAppender

log4j.appender.kafkaAppender=org.apache.log4j.DailyRollingFileAppender
log4j.appender.kafkaAppender.DatePattern='.'yyyy-MM-dd-HH
log4j.appender.kafkaAppender.File=${kafka.logs.dir}/client.log
log4j.appender.kafkaAppender.layout=org.apache.log4j.PatternLayout
log4j.appender.kafkaAppender.layout.ConversionPattern=[%d] %p %m (%c)%n

# Turn on all our debugging info
#log4j.logger.kafka.producer.async.DefaultEventHandler=DEBUG, kafkaAppender
#log4j.logger.kafka.client.ClientUtils=DEBUG, kafkaAppender
#log4j.logger.kafka.perf=DEBUG, kafkaAppender
#log4j.logger.kafka.perf.ProducerPerformance$ProducerThread=DEBUG, kafkaAppender
#log4j.logger.org.I0Itec.zkclient.ZkClient=DEBUG

将kafkaAppender添加到rootLogger，并将日志级别调整到需要观察的级别。

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