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https://issues.apache.org/jira/browse/KAFKA-7118?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Richard Yu updated KAFKA-7118:
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Description: It was discovered that there is a performance constraint
relating to {{KafkaConsumer#close()}}. When several cores are modifying the
same consumer, a {{ConcurrentModification}} exception could result. This issue
was first posted on Spark. For testing details, see SPARK-23636. It would be
preferable if multiple threads are allowed to modify one {{KafkaConsumer}}.
(was: It was discovered that there is a potential problem relating to
{{KafkaConsumer#close()}}. When several cores are modifying the same consumer,
a {{ConcurrentModification}} exception could result. This issue was first
posted on Spark. For testing details, see SPARK-23636.)
> Make KafkaConsumer compatible with multiple threads
> ---------------------------------------------------
>
> Key: KAFKA-7118
> URL: https://issues.apache.org/jira/browse/KAFKA-7118
> Project: Kafka
> Issue Type: Bug
> Components: consumer
> Reporter: Richard Yu
> Priority: Major
>
> It was discovered that there is a performance constraint relating to
> {{KafkaConsumer#close()}}. When several cores are modifying the same
> consumer, a {{ConcurrentModification}} exception could result. This issue was
> first posted on Spark. For testing details, see SPARK-23636. It would be
> preferable if multiple threads are allowed to modify one {{KafkaConsumer}}.
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