[
https://issues.apache.org/jira/browse/KAFKA-5882?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16270420#comment-16270420
]
Seweryn Habdank-Wojewodzki commented on KAFKA-5882:
---------------------------------------------------
[~mjsax] How can I get result similar to
"topologyBuilder.build(null).toString()", if I am not using topology builder?
I am creating streams using: `KStream<String, String> stringInput =
kBuilder.stream( inTopicName );` and `streams = new KafkaStreams(
kBuilder.build(), streamsConfig );`
> NullPointerException in StreamTask
> ----------------------------------
>
> Key: KAFKA-5882
> URL: https://issues.apache.org/jira/browse/KAFKA-5882
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 0.11.0.0
> Reporter: Seweryn Habdank-Wojewodzki
>
> It seems bugfix [KAFKA-5073|https://issues.apache.org/jira/browse/KAFKA-5073]
> is made, but introduce some other issue.
> In some cases (I am not sure which ones) I got NPE (below).
> I would expect that even in case of FATAL error anythink except NPE is thrown.
> {code}
> 2017-09-12 23:34:54 ERROR ConsumerCoordinator:269 - User provided listener
> org.apache.kafka.streams.processor.internals.StreamThread$RebalanceListener
> for group streamer failed on partition assignment
> java.lang.NullPointerException: null
> at
> org.apache.kafka.streams.processor.internals.StreamTask.<init>(StreamTask.java:123)
> ~[myapp-streamer.jar:?]
> at
> org.apache.kafka.streams.processor.internals.StreamThread.createStreamTask(StreamThread.java:1234)
> ~[myapp-streamer.jar:?]
> at
> org.apache.kafka.streams.processor.internals.StreamThread$TaskCreator.createTask(StreamThread.java:294)
> ~[myapp-streamer.jar:?]
> at
> org.apache.kafka.streams.processor.internals.StreamThread$AbstractTaskCreator.retryWithBackoff(StreamThread.java:254)
> ~[myapp-streamer.jar:?]
> at
> org.apache.kafka.streams.processor.internals.StreamThread.addStreamTasks(StreamThread.java:1313)
> ~[myapp-streamer.jar:?]
> at
> org.apache.kafka.streams.processor.internals.StreamThread.access$1100(StreamThread.java:73)
> ~[myapp-streamer.jar:?]
> at
> org.apache.kafka.streams.processor.internals.StreamThread$RebalanceListener.onPartitionsAssigned(StreamThread.java:183)
> ~[myapp-streamer.jar:?]
> at
> org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.onJoinComplete(ConsumerCoordinator.java:265)
> [myapp-streamer.jar:?]
> at
> org.apache.kafka.clients.consumer.internals.AbstractCoordinator.joinGroupIfNeeded(AbstractCoordinator.java:363)
> [myapp-streamer.jar:?]
> at
> org.apache.kafka.clients.consumer.internals.AbstractCoordinator.ensureActiveGroup(AbstractCoordinator.java:310)
> [myapp-streamer.jar:?]
> at
> org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.poll(ConsumerCoordinator.java:297)
> [myapp-streamer.jar:?]
> at
> org.apache.kafka.clients.consumer.KafkaConsumer.pollOnce(KafkaConsumer.java:1078)
> [myapp-streamer.jar:?]
> at
> org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1043)
> [myapp-streamer.jar:?]
> at
> org.apache.kafka.streams.processor.internals.StreamThread.pollRequests(StreamThread.java:582)
> [myapp-streamer.jar:?]
> at
> org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:553)
> [myapp-streamer.jar:?]
> at
> org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:527)
> [myapp-streamer.jar:?]
> 2017-09-12 23:34:54 INFO StreamThread:1040 - stream-thread
> [streamer-3a44578b-faa8-4b5b-bbeb-7a7f04639563-StreamThread-1] Shutting down
> 2017-09-12 23:34:54 INFO KafkaProducer:972 - Closing the Kafka producer with
> timeoutMillis = 9223372036854775807 ms.
> {code}
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
