[jira] [Resolved] (FLINK-3288) KafkaConsumer (0.8) fails with UnknownException

["Robert Metzger (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-3288?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Metzger resolved FLINK-3288.
-----------------------------------
       Resolution: Fixed
    Fix Version/s: 1.0.0

Resolved in FLINK-3368

> KafkaConsumer (0.8) fails with UnknownException
> -----------------------------------------------
>
>                 Key: FLINK-3288
>                 URL: https://issues.apache.org/jira/browse/FLINK-3288
>             Project: Flink
>          Issue Type: Bug
>          Components: Kafka Connector
>            Reporter: Robert Metzger
>            Assignee: Robert Metzger
>             Fix For: 1.0.0
>
>
> {code}
> Exception for partition 19: kafka.common.UnknownException
>     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
>     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
>     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
>     at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
>     at java.lang.Class.newInstance(Class.java:383)
>     at kafka.common.ErrorMapping$.exceptionFor(ErrorMapping.scala:86)
>     at kafka.common.ErrorMapping.exceptionFor(ErrorMapping.scala)
>     at org.apache.flink.streaming.connectors.kafka.internals.LegacyFetcher$SimpleConsumerThread.run(LegacyFetcher.java:406)
>     at org.apache.flink.streaming.connectors.kafka.internals.LegacyFetcher.run(LegacyFetcher.java:242)
>     at org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumer.run(FlinkKafkaConsumer.java:397)
>     at org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:58)
>     at org.apache.flink.streaming.runtime.tasks.SourceStreamTask.run(SourceStreamTask.java:55)
>     at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:218)
>     at org.apache.flink.runtime.taskmanager.Task.run(Task.java:584)
>     at java.lang.Thread.run(Thread.java:745)
> {code}
> One of the Kafka brokers is reporting
> {code}
> [2016-01-25 12:45:30,195] ERROR [Replica Manager on Broker 2]: Error when processing fetch request for partition [WordCount,4] offset 335517 from consumer with correlation id 0. Possible cause: Attempt to read with a maximum offset (335515) less than the start offset (335517). (kafka.server.ReplicaManager)
> {code}



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