[jira] [Assigned] (KAFKA-4434) KafkaProducer configuration is logged twice

["huxi (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-4434?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

huxi reassigned KAFKA-4434:
---------------------------

    Assignee: huxi  (was: kevin.chen)

> KafkaProducer configuration is logged twice
> -------------------------------------------
>
>                 Key: KAFKA-4434
>                 URL: https://issues.apache.org/jira/browse/KAFKA-4434
>             Project: Kafka
>          Issue Type: Bug
>          Components: config
>    Affects Versions: 0.10.0.1
>            Reporter: Ruben de Gooijer
>            Assignee: huxi
>            Priority: Minor
>              Labels: newbie
>             Fix For: 0.10.2.0
>
>
> The constructor of org.apache.kafka.clients.producer.KafkaProducer accepts a ProducerConfig which when constructed logs the configuration: https://github.com/apache/kafka/blob/0.10.0.1/clients/src/main/java/org/apache/kafka/common/config/AbstractConfig.java#L58 . 
> However, when the construction of KafkaProducer proceeds the provided ProducerConfig is repurposed and another instance is created https://github.com/apache/kafka/blob/0.10.0.1/clients/src/main/java/org/apache/kafka/clients/producer/KafkaProducer.java#L323 which triggers another log with the same contents (only the clientId can differ in case its not supplied in the original config). 
> At first sight this seems like unintended behaviour to me. At least it caused me to dive into it in order to verify if there weren't two producer instances running.



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