[KAFKA-13626] NullPointerException in Selector.pollSelectionKeys: channel is null

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 2.7.1
• Component/s: consumer
• Assignee: Unassigned
• Reporter: Daniel Häuser
• Created: 28/Jan/22 14:04
• Updated: 22/Mar/22 09:55

Description

This NullPointerException occured while we were having networking issues.

Unfortunately I cannot provide much more information than this stack trace because this is all I got from our operations team.

java.lang.IllegalStateException: This error handler cannot process 'java.lang.NullPointerException's; no record information is available
        at org.springframework.kafka.listener.SeekUtils.seekOrRecover(SeekUtils.java:200)
        at org.springframework.kafka.listener.SeekToCurrentErrorHandler.handle(SeekToCurrentErrorHandler.java:112)
        at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.handleConsumerException(KafkaMessageListenerContainer.java:1599)
        at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.run(KafkaMessageListenerContainer.java:1210)
        at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.lang.Thread.run(Thread.java:831)
Caused by: java.lang.NullPointerException: Cannot invoke "org.apache.kafka.common.network.KafkaChannel.id()" because "channel" is null
        at org.apache.kafka.common.network.Selector.pollSelectionKeys(Selector.java:516)
        at org.apache.kafka.common.network.Selector.poll(Selector.java:481)
        at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:563)
        at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:265)
        at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:236)
        at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:227)
        at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.awaitMetadataUpdate(ConsumerNetworkClient.java:164)
        at org.apache.kafka.clients.consumer.internals.AbstractCoordinator.ensureCoordinatorReady(AbstractCoordinator.java:257)
        at org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.poll(ConsumerCoordinator.java:480)
        at org.apache.kafka.clients.consumer.KafkaConsumer.updateAssignmentMetadataIfNeeded(KafkaConsumer.java:1257)
        at org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1226)
        at org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1206)
        at jdk.internal.reflect.GeneratedMethodAccessor128.invoke(Unknown Source)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:567)
        at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344)
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:208)
        at jdk.proxy2/jdk.proxy2.$Proxy137.poll(Unknown Source)
        at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.doPoll(KafkaMessageListenerContainer.java:1410)
        at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.pollAndInvoke(KafkaMessageListenerContainer.java:1249)
        at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.run(KafkaMessageListenerContainer.java:1161)
        ... 3 common frames omitted