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https://issues.apache.org/jira/browse/FLINK-8497?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated FLINK-8497:
----------------------------------
Labels: pull-request-available (was: )
> KafkaConsumer throws NPE if topic doesn't exist
> -----------------------------------------------
>
> Key: FLINK-8497
> URL: https://issues.apache.org/jira/browse/FLINK-8497
> Project: Flink
> Issue Type: Bug
> Components: Kafka Connector
> Affects Versions: 1.4.0
> Reporter: chris snow
> Assignee: Aleksei Lesnov
> Priority: Minor
> Labels: pull-request-available
>
> If I accidentally set the kafka consumer with a topic that doesn't exist:
> {code:java}
> FlinkKafkaConsumer011 kafkaConsumer = new FlinkKafkaConsumer011(
> "does_not_exist",
> new JSONKeyValueDeserializationSchema(false),
> properties
> );
> DataStream<String> input = env.addSource(kafkaConsumer);{code}
> Flink throws NPE
> {code:java}
> Caused by: java.lang.NullPointerException
> at
> org.apache.flink.streaming.connectors.kafka.internal.Kafka09PartitionDiscoverer.getAllPartitionsForTopics(Kafka09PartitionDiscoverer.java:75)
> at
> org.apache.flink.streaming.connectors.kafka.internals.AbstractPartitionDiscoverer.discoverPartitions(AbstractPartitionDiscoverer.java:128)
> at
> org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumerBase.open(FlinkKafkaConsumerBase.java:415)
> at
> org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:36)
> at
> org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.open(AbstractUdfStreamOperator.java:102)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.openAllOperators(StreamTask.java:393)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:254)
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:718)
> at java.lang.Thread.run(Thread.java:748){code}
> Maybe Flink could through an IllegalStateException("Topic not found")?
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