[jira] [Created] (KAFKA-5625) Invalid subscription data may cause streams app to throw BufferUnderflowException

["Xavier Léauté (JIRA)" <ji...@apache.org>]

Xavier Léauté created KAFKA-5625:
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             Summary: Invalid subscription data may cause streams app to throw BufferUnderflowException
                 Key: KAFKA-5625
                 URL: https://issues.apache.org/jira/browse/KAFKA-5625
             Project: Kafka
          Issue Type: Bug
            Reporter: Xavier Léauté
            Priority: Minor


I was able to cause my streams app to crash with the following error when attempting to join the same consumer group with a rogue client.

At the very least I would expect streams to throw a {{TaskAssignmentException}} to indicate invalid subscription data.

{code}
java.nio.BufferUnderflowException
        at java.nio.Buffer.nextGetIndex(Buffer.java:506)
        at java.nio.HeapByteBuffer.getInt(HeapByteBuffer.java:361)
        at org.apache.kafka.streams.processor.internals.assignment.SubscriptionInfo.decode(SubscriptionInfo.java:97)
        at org.apache.kafka.streams.processor.internals.StreamPartitionAssignor.assign(StreamPartitionAssignor.java:302)
        at org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.performAssignment(ConsumerCoordinator.java:365)
        at org.apache.kafka.clients.consumer.internals.AbstractCoordinator.onJoinLeader(AbstractCoordinator.java:512)
        at org.apache.kafka.clients.consumer.internals.AbstractCoordinator.access$1100(AbstractCoordinator.java:93)
        at org.apache.kafka.clients.consumer.internals.AbstractCoordinator$JoinGroupResponseHandler.handle(AbstractCoordinator.java:462)
        at org.apache.kafka.clients.consumer.internals.AbstractCoordinator$JoinGroupResponseHandler.handle(AbstractCoordinator.java:445)
        at org.apache.kafka.clients.consumer.internals.AbstractCoordinator$CoordinatorResponseHandler.onSuccess(AbstractCoordinator.java:798)
        at org.apache.kafka.clients.consumer.internals.AbstractCoordinator$CoordinatorResponseHandler.onSuccess(AbstractCoordinator.java:778)
        at org.apache.kafka.clients.consumer.internals.RequestFuture$1.onSuccess(RequestFuture.java:204)
        at org.apache.kafka.clients.consumer.internals.RequestFuture.fireSuccess(RequestFuture.java:167)
        at org.apache.kafka.clients.consumer.internals.RequestFuture.complete(RequestFuture.java:127)
        at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient$RequestFutureCompletionHandler.fireCompletion(ConsumerNetworkClient.java:488)
        at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.firePendingCompletedRequests(ConsumerNetworkClient.java:348)
        at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:262)
        at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:208)
        at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:168)
        at org.apache.kafka.clients.consumer.internals.AbstractCoordinator.joinGroupIfNeeded(AbstractCoordinator.java:358)
        at org.apache.kafka.clients.consumer.internals.AbstractCoordinator.ensureActiveGroup(AbstractCoordinator.java:310)
        at org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.poll(ConsumerCoordinator.java:297)
        at org.apache.kafka.clients.consumer.KafkaConsumer.pollOnce(KafkaConsumer.java:1078)
        at org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1043)
        at org.apache.kafka.streams.processor.internals.StreamThread.pollRequests(StreamThread.java:574)
        at org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:545)
        at org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:519)
{code}



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