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https://issues.apache.org/jira/browse/KAFKA-6793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17230219#comment-17230219
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Dan Lipofsky commented on KAFKA-6793:
-------------------------------------

This is still a problem in kafka 2.6.0.
Could we change these to info? I see
{noformat}
WARN [o.a.k.c.c.ConsumerConfig] - The configuration 'admin.retries' was 
supplied but isn't a known config.
WARN [o.a.k.c.c.ConsumerConfig] - The configuration 'admin.retry.backoff.ms' 
was supplied but isn't a known config.
WARN [o.a.k.c.p.ProducerConfig] - The configuration 'application.id' was 
supplied but isn't a known config.
WARN [o.a.k.c.p.ProducerConfig] - The configuration 'default.key.serde' was 
supplied but isn't a known config.
WARN [o.a.k.c.p.ProducerConfig] - The configuration 'producer.id' was supplied 
but isn't a known config.
WARN [o.a.k.c.p.ProducerConfig] - The configuration 'producer.topic.name' was 
supplied but isn't a known config.
WARN [o.a.k.c.p.ProducerConfig] - The configuration 'producer.topic.partitions' 
was supplied but isn't a known config.
WARN [o.a.k.c.p.ProducerConfig] - The configuration 
'producer.topic.replication.factor' was supplied but isn't a known config.
{noformat}

> Unnecessary warning log message 
> --------------------------------
>
>                 Key: KAFKA-6793
>                 URL: https://issues.apache.org/jira/browse/KAFKA-6793
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams
>    Affects Versions: 1.1.0
>            Reporter: Anna O
>            Priority: Minor
>
> When upgraded KafkaStreams from 0.11.0.2 to 1.1.0 the following warning log 
> started to appear:
> level: WARN
> logger: org.apache.kafka.clients.consumer.ConsumerConfig
> message: The configuration 'admin.retries' was supplied but isn't a known 
> config.
> The config is not explicitly supplied to the streams.



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