Log4j

You can set the log level and configuration in the log4j2.yaml file. The following logging configuration parameters are available.

pulsar.root.logger

Default: WARN,CONSOLE

pulsar.log.dir

Default: logs

pulsar.log.file

Default: pulsar.log

log4j.rootLogger

Default: ${pulsar.root.logger}

log4j.appender.CONSOLE

Default: org.apache.log4j.ConsoleAppender

log4j.appender.CONSOLE.Threshold

Default: DEBUG

log4j.appender.CONSOLE.layout

Default: org.apache.log4j.PatternLayout

log4j.appender.CONSOLE.layout.ConversionPattern

Default: %d{ISO8601} - %-5p - [%t:%C{1}@%L] - %m%n

log4j.appender.ROLLINGFILE

Default: org.apache.log4j.DailyRollingFileAppender

log4j.appender.ROLLINGFILE.Threshold

Default: DEBUG

log4j.appender.ROLLINGFILE.File

Default: ${pulsar.log.dir}/${pulsar.log.file}

log4j.appender.ROLLINGFILE.layout

Default: org.apache.log4j.PatternLayout

log4j.appender.ROLLINGFILE.layout.ConversionPattern

Default: %d{ISO8601} - %-5p [%t:%C{1}@%L] - %m%n

log4j.appender.TRACEFILE

Default: org.apache.log4j.FileAppender

log4j.appender.TRACEFILE.Threshold

Default: TRACE

log4j.appender.TRACEFILE.File

Default: pulsar-trace.log

log4j.appender.TRACEFILE.layout

Default: org.apache.log4j.PatternLayout

log4j.appender.TRACEFILE.layout.ConversionPattern

Default: %d{ISO8601} - %-5p [%t:%C{1}@%L][%x] - %m%n

Note: ‘topic’ in log4j2.appender is configurable.

• If you want to append all logs to a single topic, set the same topic name.
• If you want to append logs to different topics, you can set different topic names.