Kafka:如何启用客户端日志记录? [英] Kafka: How do I enable client logging?
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问题描述
当我实例化Kafka使用者时
When I instantiate a Kafka consumer
KafkaConsumer<String,String> consumer = new KafkaConsumer<String,String>(props);
我收到此消息
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
如何为我的客户端程序启用日志记录?
How do I enable logging for my client program?
推荐答案
将此属性文件src/main/resources/log4j.properties
添加到您的项目中:
Add this property file src/main/resources/log4j.properties
to your project:
$ cat src/main/resources/log4j.properties
# Root logger option
log4j.rootLogger=DEBUG, stdout
# Direct log messages to stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
这将启用日志记录.然后可以设置标准选项 例如日志记录文档中的调试级别,输出格式等.
This will enable logging. You can then set the standard options such as debug level, output format, etc, as per the logging documentation.
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