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https://issues.apache.org/jira/browse/KAFKA-7749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Randall Hauch resolved KAFKA-7749.
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Fix Version/s: 2.3.0
Resolution: Fixed
[KIP-458|https://cwiki.apache.org/confluence/display/KAFKA/KIP-458%3A+Connector+Client+Config+Override+Policy]
introduced in AK 2.3.0 added support for connector-specific client overrides
like the one described here.
Marking as resolved.
> confluent does not provide option to set consumer properties at connector
> level
> -------------------------------------------------------------------------------
>
> Key: KAFKA-7749
> URL: https://issues.apache.org/jira/browse/KAFKA-7749
> Project: Kafka
> Issue Type: Improvement
> Components: KafkaConnect
> Reporter: Manjeet Duhan
> Priority: Major
> Fix For: 2.3.0
>
>
> _We want to increase consumer.max.poll.record to increase performance but
> this value can only be set in worker properties which is applicable to all
> connectors given cluster._
> __
> _Operative Situation :- We have one project which is communicating with
> Elasticsearch and we set consumer.max.poll.record=500 after multiple
> performance tests which worked fine for an year._
> _Then one more project onboarded in the same cluster which required
> consumer.max.poll.record=5000 based on their performance tests. This
> configuration is moved to production._
> _Admetric started failing as it was taking more than 5 minutes to process
> 5000 polled records and started throwing commitfailed exception which is
> vicious cycle as it will process same data over and over again._
> __
> _We can control above if start consumer using plain java but this control was
> not available at each consumer level in confluent connector._
> _I have overridden kafka code to accept connector properties which will be
> applied to single connector and others will keep on using default properties
> . These changes are already running in production for more than 5 months._
> _Some of the properties which were useful for us._
> max.poll.records
> max.poll.interval.ms
> request.timeout.ms
> key.deserializer
> value.deserializer
> heartbeat.interval.ms
> session.timeout.ms
> auto.offset.reset
> connections.max.idle.ms
> enable.auto.commit
>
> auto.commit.interval.ms
>
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