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https://issues.apache.org/jira/browse/FLINK-22702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17364665#comment-17364665
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Xintong Song commented on FLINK-22702:
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https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=19037&view=logs&j=72d4811f-9f0d-5fd0-014a-0bc26b72b642&t=c1d93a6a-ba91-515d-3196-2ee8019fbda7&l=6563
> KafkaSourceITCase.testRedundantParallelism failed
> -------------------------------------------------
>
> Key: FLINK-22702
> URL: https://issues.apache.org/jira/browse/FLINK-22702
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Kafka
> Affects Versions: 1.14.0, 1.12.3
> Reporter: Guowei Ma
> Priority: Major
> Labels: test-stability
>
> https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=18107&view=logs&j=1fc6e7bf-633c-5081-c32a-9dea24b05730&t=80a658d1-f7f6-5d93-2758-53ac19fd5b19&l=6847
> {code:java}
> Caused by: java.lang.RuntimeException: One or more fetchers have encountered
> exception
> at
> org.apache.flink.connector.base.source.reader.fetcher.SplitFetcherManager.checkErrors(SplitFetcherManager.java:199)
> at
> org.apache.flink.connector.base.source.reader.SourceReaderBase.getNextFetch(SourceReaderBase.java:154)
> at
> org.apache.flink.connector.base.source.reader.SourceReaderBase.pollNext(SourceReaderBase.java:116)
> at
> org.apache.flink.streaming.api.operators.SourceOperator.emitNext(SourceOperator.java:275)
> at
> org.apache.flink.streaming.runtime.io.StreamTaskSourceInput.emitNext(StreamTaskSourceInput.java:67)
> at
> org.apache.flink.streaming.runtime.io.StreamOneInputProcessor.processInput(StreamOneInputProcessor.java:65)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.processInput(StreamTask.java:398)
> at
> org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:191)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:619)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:583)
> at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:758)
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:573)
> at java.lang.Thread.run(Thread.java:748)
> Caused by: java.lang.RuntimeException: SplitFetcher thread 0 received
> unexpected exception while polling the records
> at
> org.apache.flink.connector.base.source.reader.fetcher.SplitFetcher.runOnce(SplitFetcher.java:146)
> at
> org.apache.flink.connector.base.source.reader.fetcher.SplitFetcher.run(SplitFetcher.java:101)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> ... 1 more
> Caused by: java.lang.IllegalStateException: Consumer is not subscribed to any
> topics or assigned any partitions
> at
> org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1223)
> at
> org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1211)
> at
> org.apache.flink.connector.kafka.source.reader.KafkaPartitionSplitReader.fetch(KafkaPartitionSplitReader.java:97)
> at
> org.apache.flink.connector.base.source.reader.fetcher.FetchTask.run(FetchTask.java:56)
> at
> org.apache.flink.connector.base.source.reader.fetcher.SplitFetcher.runOnce(SplitFetcher.java:138)
> ... 6 more
> {code}
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