Gábor Hermann created FLINK-8237:
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Summary: BucketingSink throws NPE when Writer.duplicate returns
null
Key: FLINK-8237
URL: https://issues.apache.org/jira/browse/FLINK-8237
Project: Flink
Issue Type: Bug
Reporter: Gábor Hermann
Priority: Minor
Users need to look into Flink code to find the cause. We could catch that null
before even running the job.
{code:java}
java.lang.NullPointerException
at
org.apache.flink.streaming.connectors.fs.bucketing.BucketingSink.openNewPartFile(BucketingSink.java:546)
at
org.apache.flink.streaming.connectors.fs.bucketing.BucketingSink.invoke(BucketingSink.java:441)
at
org.apache.flink.streaming.api.operators.StreamSink.processElement(StreamSink.java:41)
at
org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:528)
at
org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:503)
at
org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:483)
at
org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.collect(AbstractStreamOperator.java:891)
at
org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.collect(AbstractStreamOperator.java:869)
at
org.apache.flink.streaming.api.operators.StreamFilter.processElement(StreamFilter.java:40)
at
org.apache.flink.streaming.runtime.io.StreamInputProcessor.processInput(StreamInputProcessor.java:206)
at
org.apache.flink.streaming.runtime.tasks.OneInputStreamTask.run(OneInputStreamTask.java:69)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:263)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:702)
{code}
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