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https://issues.apache.org/jira/browse/FLINK-1784?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14541689#comment-14541689
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Stephan Ewen commented on FLINK-1784:
-------------------------------------
Subsumed by FLINK-2008
> KafkaITCase
> -----------
>
> Key: FLINK-1784
> URL: https://issues.apache.org/jira/browse/FLINK-1784
> Project: Flink
> Issue Type: Bug
> Components: Streaming
> Affects Versions: 0.9
> Reporter: Fabian Hueske
> Priority: Minor
>
> I observed a non-deterministic failure of the {{KafkaITCase}} on Travis:
> https://travis-ci.org/fhueske/flink/jobs/55815808
> {code}
> Running org.apache.flink.streaming.connectors.kafka.KafkaITCase
> 03/25/2015 16:08:15 Job execution switched to status RUNNING.
> 03/25/2015 16:08:15 Custom Source -> Stream Sink(1/1) switched to SCHEDULED
> 03/25/2015 16:08:15 Custom Source -> Stream Sink(1/1) switched to DEPLOYING
> 03/25/2015 16:08:15 Custom Source -> Stream Sink(1/1) switched to SCHEDULED
> 03/25/2015 16:08:15 Custom Source -> Stream Sink(1/1) switched to DEPLOYING
> 03/25/2015 16:08:15 Custom Source -> Stream Sink(1/1) switched to RUNNING
> 03/25/2015 16:08:15 Custom Source -> Stream Sink(1/1) switched to RUNNING
> 03/25/2015 16:08:17 Custom Source -> Stream Sink(1/1) switched to FAILED
> java.util.NoSuchElementException: next on empty iterator
> at scala.collection.Iterator$$anon$2.next(Iterator.scala:39)
> at scala.collection.Iterator$$anon$2.next(Iterator.scala:37)
> at scala.collection.LinearSeqLike$$anon$1.next(LinearSeqLike.scala:62)
> at scala.collection.convert.Wrappers$IteratorWrapper.next(Wrappers.scala:30)
> at
> org.apache.flink.streaming.connectors.kafka.api.simple.KafkaTopicUtils.getLeaderBrokerAddressForTopic(KafkaTopicUtils.java:83)
> at
> org.apache.flink.streaming.connectors.kafka.api.KafkaSink.open(KafkaSink.java:118)
> at
> org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:33)
> at
> org.apache.flink.streaming.api.invokable.StreamInvokable.open(StreamInvokable.java:158)
> at
> org.apache.flink.streaming.api.streamvertex.StreamVertex.openOperator(StreamVertex.java:202)
> at
> org.apache.flink.streaming.api.streamvertex.StreamVertex.invoke(StreamVertex.java:165)
> at
> org.apache.flink.runtime.execution.RuntimeEnvironment.run(RuntimeEnvironment.java:209)
> at java.lang.Thread.run(Thread.java:701)
> 03/25/2015 16:08:17 Job execution switched to status FAILING.
> 03/25/2015 16:08:17 Custom Source -> Stream Sink(1/1) switched to CANCELING
> 03/25/2015 16:08:17 Custom Source -> Stream Sink(1/1) switched to FAILED
> java.util.NoSuchElementException: next on empty iterator
> at scala.collection.Iterator$$anon$2.next(Iterator.scala:39)
> at scala.collection.Iterator$$anon$2.next(Iterator.scala:37)
> at scala.collection.LinearSeqLike$$anon$1.next(LinearSeqLike.scala:62)
> at scala.collection.convert.Wrappers$IteratorWrapper.next(Wrappers.scala:30)
> at
> org.apache.flink.streaming.connectors.kafka.api.simple.KafkaTopicUtils.getLeaderBrokerAddressForTopic(KafkaTopicUtils.java:83)
> at
> org.apache.flink.streaming.connectors.kafka.api.simple.PersistentKafkaSource.open(PersistentKafkaSource.java:159)
> at
> org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:33)
> at
> org.apache.flink.streaming.api.invokable.StreamInvokable.open(StreamInvokable.java:158)
> at
> org.apache.flink.streaming.api.streamvertex.StreamVertex.openOperator(StreamVertex.java:198)
> at
> org.apache.flink.streaming.api.streamvertex.StreamVertex.invoke(StreamVertex.java:165)
> at
> org.apache.flink.runtime.execution.RuntimeEnvironment.run(RuntimeEnvironment.java:209)
> at java.lang.Thread.run(Thread.java:701)
> 03/25/2015 16:08:17 Job execution switched to status FAILED.
> Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 10.774 sec
> <<< FAILURE! - in org.apache.flink.streaming.connectors.kafka.KafkaITCase
> test(org.apache.flink.streaming.connectors.kafka.KafkaITCase) Time elapsed:
> 10.604 sec <<< FAILURE!
> java.lang.AssertionError: Test failed with: null
> at org.junit.Assert.fail(Assert.java:88)
> at
> org.apache.flink.streaming.connectors.kafka.KafkaITCase.test(KafkaITCase.java:104)
> {code}
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