[jira] [Updated] (KAFKA-14208) KafkaConsumer#commitAsync throws unexpected WakeupException

["Guozhang Wang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-14208?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guozhang Wang updated KAFKA-14208:
----------------------------------
    Fix Version/s: 3.3.0

> KafkaConsumer#commitAsync throws unexpected WakeupException
> -----------------------------------------------------------
>
>                 Key: KAFKA-14208
>                 URL: https://issues.apache.org/jira/browse/KAFKA-14208
>             Project: Kafka
>          Issue Type: Bug
>          Components: clients
>    Affects Versions: 3.2.1
>            Reporter: Qingsheng Ren
>            Assignee: Guozhang Wang
>            Priority: Major
>             Fix For: 3.3.0
>
>
> We recently encountered a bug after upgrading Kafka client to 3.2.1 in Flink Kafka connector (FLINK-29153). Here's the exception:
> {code:java}
> org.apache.kafka.common.errors.WakeupException
> 	at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.maybeTriggerWakeup(ConsumerNetworkClient.java:514)
> 	at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:278)
> 	at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:236)
> 	at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:215)
> 	at org.apache.kafka.clients.consumer.internals.AbstractCoordinator.ensureCoordinatorReady(AbstractCoordinator.java:252)
> 	at org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.coordinatorUnknownAndUnready(ConsumerCoordinator.java:493)
> 	at org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.commitOffsetsAsync(ConsumerCoordinator.java:1055)
> 	at org.apache.kafka.clients.consumer.KafkaConsumer.commitAsync(KafkaConsumer.java:1573)
> 	at org.apache.flink.streaming.connectors.kafka.internals.KafkaConsumerThread.run(KafkaConsumerThread.java:226) {code}
> As {{WakeupException}} is not listed in the JavaDoc of {{{}KafkaConsumer#commitAsync{}}}, Flink Kafka connector doesn't catch the exception thrown directly from KafkaConsumer#commitAsync but handles all exceptions in the callback.
> I checked the source code and suspect this is caused by KAFKA-13563. Also we never had this exception in commitAsync when we used Kafka client 2.4.1 & 2.8.1. 
> I'm wondering if this is kind of breaking the public API as the WakeupException is not listed in JavaDoc, and maybe it's better to invoke the callback to handle the {{WakeupException}} instead of throwing it directly from the method itself. 



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