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https://issues.apache.org/jira/browse/SPARK-22606?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gabor Somogyi reopened SPARK-22606:
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> There may be two or more tasks in one executor will use the same kafka
> consumer at the same time, then it will throw an exception: "KafkaConsumer is
> not safe for multi-threaded access"
> -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: SPARK-22606
> URL: https://issues.apache.org/jira/browse/SPARK-22606
> Project: Spark
> Issue Type: Bug
> Components: DStreams
> Affects Versions: 2.2.0
> Reporter: eaton
> Priority: Minor
>
> If the value of param 'spark.streaming.concurrentJobs' is more than one, and
> the value of param 'spark.executor.cores' is more than one, there may be two
> or more tasks in one executor will use the same kafka consumer at the same
> time, then it will throw an exception: "KafkaConsumer is not safe for
> multi-threaded access"
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