Disable LocalCluster Logging in Apache Storm

Question

I'm trying to get started with Apache storm by running the example code. I'm working with storm 0.10.1-beta1 off of a maven repository.

Unfortunately, when I run these, the console is flooded with info level logs, drowning out any System.out.print() calls that I've added. Is it possible to change the log level when running off of a LocalCluster? I've tried the solutions listed here and none of the solutions seem to be working.

From the link, Changing the Config.TOPOLOGY_DEBUG property to false doesn't remove the info level logs, and using the code from the link, I can't even use logger.setLevel((Level) Level.FATAL) as I get "The method setLevel(Level) is undefined for the type Logger" despite it clearly being listed in the log4j api.

Edit 1: I also tried the solution here and I put an xml called logback.xml into ./src with the following config:

<configuration monitorInterval="60">
  <Appenders>
    <Console name="Console" target="SYSTEM_OUT">
     <PatternLayout pattern="%-4r [%t] %-5p %c{1.} - %msg%n"/>
    </Console>
  </Appenders>
  <Loggers>
    <Logger name="org.apache.zookeeper" level="WARN"/>
    <Root level="WARN">
      <AppenderRef ref="Console"/>
    </Root>
  </Loggers>
</configuration>

Still no luck though. Is there any additional config required to tell storm to use the custom log settings?

Update: It turns out that storm 0.10.x switched to using log4j2 instead of logback, so adding a log4j2.xml with the configuration above finally worked!

Answer 1

The following configuration works for me:

<configuration>
  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
    <encoder>
      <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
    </encoder>
  </appender>

  <root level="WARN">
    <appender-ref ref="STDOUT" />
  </root>
</configuration>