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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LOG4J2-2062) Add possibility of sending the key of a message to Kafka using KafkaAppender
Date Mon, 02 Oct 2017 19:26:00 GMT

    [ https://issues.apache.org/jira/browse/LOG4J2-2062?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16188669#comment-16188669
] 

ASF GitHub Bot commented on LOG4J2-2062:
----------------------------------------

Github user mikaelstaldal commented on the issue:

    https://github.com/apache/logging-log4j2/pull/112
  
    @flowcont I think it would make more sense to have the value for the key as an attribute
on the Kafka appender element, and not as a nested property, since the nested properties are
passed directly to the [Kafka client library](http://kafka.apache.org/documentation.html#producerconfigs).
    
    So you can specify it like this:
    
    ```
      <Appenders>
        <Kafka name="Kafka" topic="log-test" key="myKey">
          <PatternLayout pattern="%date %message"/>
          <Property name="bootstrap.servers">localhost:9092</Property>
        </Kafka>
      </Appenders>
    ```


> Add possibility of sending the key of a message to Kafka using KafkaAppender
> ----------------------------------------------------------------------------
>
>                 Key: LOG4J2-2062
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-2062
>             Project: Log4j 2
>          Issue Type: Improvement
>          Components: Appenders
>    Affects Versions: 2.9.0
>            Reporter: Jorge Sanchez
>            Priority: Minor
>
> When using the KafkaAppender the KafkaManager only sends the value of a message to a
Kafka topic. 
> It could be useful to be able to assign a value to the key of that message via configuration
instead of having it null.
> Check https://github.com/apache/logging-log4j2/blob/master/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/mom/kafka/KafkaManager.java#L99
> Updated with link to the PR: https://github.com/apache/logging-log4j2/pull/112



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