CODEWITHSUNDEEP
loggingjmeterlog4j
J. Doe
J. Doe

Reputation: 187

JMeter logging in console and log viewer simultaneously

Newbie question

Using JSR223 PostProcessor

How does one log to both at the same time?

Want to avoid duplicating messages.

out.println("WARNING")
log.warn("WARNING")

Have a ton of post processing scripts using log.warn and I need these messages to show up in console at the same time. Been searching like mad and cannot find anything about using one log to output to both. Maybe some way to make each log.warn into a out.println using a pre-processor?

Thanks

Upvotes: 2

Views: 4685

Answers (2)

ROMANIA_engineer
ROMANIA_engineer

Reputation: 56714

Some options:

Print the message everytime the warn is logged:

  • use a method that makes both operations:

    public static void printAndLog(Logger log, String message) {
    System.out.println(message)
    log.warn(message)
}

  • use aspects from AspectJ

Use 2 appenders in log4j (one for console, one for file)

This is applicable if logging a message to the console (STDOUT) is an accepted alternative to System.out.println.

  • adjust log4j.properties:

    log4j.rootLogger=INFO,CONSOLE,FILE
log4j.appender.FILE=org.apache.log4j.FileAppender    
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender

  • adjust log4j2.xml

    <Configuration status="INFO">
    <Appenders>
        <Console name="CONSOLE" target="SYSTEM_OUT">
            <PatternLayout pattern="%msg%n" />
        </Console>
        <File name="FILE" ...>
            <PatternLayout pattern="..."/>
        </File>
    </Appenders>
    <Loggers>
        <Root level="info">
            <AppenderRef ref="CONSOLE" />
            <AppenderRef ref="FILE"/>
        </Root>
    </Loggers>
</Configuration>

Upvotes: 1

J. Doe
J. Doe

Reputation: 187

Found the answer on https://logging.apache.org/log4j/2.x/manual/appenders.html

Added the following to log4j2.xml located in bin folder of JMeter

<Appenders>

<File name="jmeter-log" fileName="${sys:jmeter.logfile:-jmeter.log}" append="false">
  <PatternLayout>
    <pattern>%d %p %c{1.}: %m%n</pattern>
  </PatternLayout>
</File>

<GuiLogEvent name="gui-log-event">
  <PatternLayout>
    <pattern>%d %p %c{1.}: %m%n</pattern>
  </PatternLayout>
</GuiLogEvent>

<Console name="STDOUT" target="SYSTEM_OUT">
  <PatternLayout>
    <pattern>%d %p %c{1.}: %m%n</pattern>
  </PatternLayout>
</Console>

and 

<Loggers>

<Root level="info">
  <AppenderRef ref="jmeter-log" />
  <AppenderRef ref="gui-log-event" />
  <AppenderRef ref="STDOUT"/>
</Root>

Wouldn't have found the answer without @romania_engineer

Upvotes: 1

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