[jira] [Commented] (SPARK-22606) 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"

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

    [ https://issues.apache.org/jira/browse/SPARK-22606?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16265638#comment-16265638 ] 

Apache Spark commented on SPARK-22606:
--------------------------------------

User 'eatoncys' has created a pull request for this issue:
https://github.com/apache/spark/pull/19819

> 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: Structured Streaming
>    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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