[jira] [Resolved] (KAFKA-16924) No log output when running kafka

["Luke Chen (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-16924?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Luke Chen resolved KAFKA-16924.
-------------------------------
    Resolution: Fixed

> No log output when running kafka 
> ---------------------------------
>
>                 Key: KAFKA-16924
>                 URL: https://issues.apache.org/jira/browse/KAFKA-16924
>             Project: Kafka
>          Issue Type: Bug
>            Reporter: Luke Chen
>            Assignee: Luke Chen
>            Priority: Major
>             Fix For: 4.0.0
>
>
> In [https://github.com/apache/kafka/pull/12148] , we removed log4jAppender dependency, and add testImplementation dependency for `slf4jlog4j` lib. However, we need this runtime dependency in tools module to output logs. ([ref]([https://stackoverflow.com/a/21787813])) Adding this dependency back.
>  
> Note: The {{slf4jlog4j}} lib was added in {{log4j-appender}} dependency. Since it's removed, we need to explicitly declare it.
>  
> Current output will be like this:
> {code:java}
> > ./gradlew clean jar
> > bin/kafka-server-start.sh config/kraft/controller.properties
> 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.{code}
>  



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