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Posted to issues@spark.apache.org by "ov7a (JIRA)" <ji...@apache.org> on 2019/05/15 11:02:00 UTC
[jira] [Updated] (SPARK-27720) ConcurrentModificationException on
closing DirectKafkaInputDStream
[ https://issues.apache.org/jira/browse/SPARK-27720?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ov7a updated SPARK-27720:
-------------------------
Description:
If a DirectKafkaInputDStream is started in one thread and is being stopped in another thread (e.g. by shutdown hook) a java.util.ConcurrentModificationException (KafkaConsumer is not safe for multi-threaded access) is thrown.
This happens even if "spark.streaming.kafka.consumer.cache.enabled" is set to "false".
was:
If a DirectKafkaInputDStream is started in one thread and is being stopped in another thread (e.g. by shutdown hook) a java.util.ConcurrentModificationException (KafkaConsumer is not safe for multi-threaded access) is thrown.
> ConcurrentModificationException on closing DirectKafkaInputDStream
> ------------------------------------------------------------------
>
> Key: SPARK-27720
> URL: https://issues.apache.org/jira/browse/SPARK-27720
> Project: Spark
> Issue Type: Bug
> Components: DStreams
> Affects Versions: 2.4.1
> Reporter: ov7a
> Priority: Minor
>
> If a DirectKafkaInputDStream is started in one thread and is being stopped in another thread (e.g. by shutdown hook) a java.util.ConcurrentModificationException (KafkaConsumer is not safe for multi-threaded access) is thrown.
> This happens even if "spark.streaming.kafka.consumer.cache.enabled" is set to "false".
>
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