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Posted to dev@kafka.apache.org by "Ismael Juma (JIRA)" <ji...@apache.org> on 2018/11/20 14:58:01 UTC
[jira] [Reopened] (KAFKA-7565) NPE in KafkaConsumer
[ https://issues.apache.org/jira/browse/KAFKA-7565?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ismael Juma reopened KAFKA-7565:
--------------------------------
> NPE in KafkaConsumer
> --------------------
>
> Key: KAFKA-7565
> URL: https://issues.apache.org/jira/browse/KAFKA-7565
> Project: Kafka
> Issue Type: Bug
> Components: clients
> Affects Versions: 1.1.1
> Reporter: Alexey Vakhrenev
> Priority: Critical
>
> The stacktrace is
> {noformat}
> java.lang.NullPointerException
> at org.apache.kafka.clients.consumer.internals.Fetcher$1.onSuccess(Fetcher.java:221)
> at org.apache.kafka.clients.consumer.internals.Fetcher$1.onSuccess(Fetcher.java:202)
> at org.apache.kafka.clients.consumer.internals.RequestFuture.fireSuccess(RequestFuture.java:167)
> at org.apache.kafka.clients.consumer.internals.RequestFuture.complete(RequestFuture.java:127)
> at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient$RequestFutureCompletionHandler.fireCompletion(ConsumerNetworkClient.java:563)
> at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.firePendingCompletedRequests(ConsumerNetworkClient.java:390)
> at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:244)
> at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:233)
> at org.apache.kafka.clients.consumer.KafkaConsumer.pollOnce(KafkaConsumer.java:1171)
> at org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1115)
> {noformat}
> Couldn't find minimal reproducer, but it happens quite often in our system. We use {{pause()}} and {{wakeup()}} methods quite extensively, maybe it is somehow related.
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