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  1. Kafka
  2. KAFKA-7565

NPE in KafkaConsumer

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Details

    • Bug
    • Status: Resolved
    • Critical
    • Resolution: Duplicate
    • 1.1.1
    • None
    • clients
    • None

    Description

      The stacktrace is

      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)
      

      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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            Unassigned Unassigned
            avakhrenev Alexey Vakhrenev
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              Updated:
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