Could not extract key Exception only on runtime not in dev environment
Locked
 
|
I am running flink locally on my machine , I am getting the exception below when reading from kafka topic. when running from the ide (intellij) it is running perfectly. however when I deploy my jar to flink runtime (locally) using /bin/flink run ~MyApp-1.0-SNAPSHOT.jar my class looks like this case class Foo(id: String, value: String, timestamp: Long, counter: Int) I am getting this exception java.lang.RuntimeException: Could not extract key from Foo("some-uuid","text",1540348398,1)
at org.apache.flink.streaming.runtime.io.RecordWriterOutput.pushToRecordWriter(RecordWriterOutput.java:110)
at org.apache.flink.streaming.runtime.io.RecordWriterOutput.collect(RecordWriterOutput.java:89)
at org.apache.flink.streaming.runtime.io.RecordWriterOutput.collect(RecordWriterOutput.java:45)
at org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.collect(AbstractStreamOperator.java:689)
at org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.collect(AbstractStreamOperator.java:667)
at org.apache.flink.streaming.api.operators.StreamFilter.processElement(StreamFilter.java:40)
at org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.pushToOperator(OperatorChain.java:579)
at org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:554)
at org.apache.flink.streaming.runtime.tasks.OperatorChain$CopyingChainingOutput.collect(OperatorChain.java:534)
at org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.collect(AbstractStreamOperator.java:689)
at org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.collect(AbstractStreamOperator.java:667)
at org.apache.flink.streaming.api.operators.StreamSourceContexts$NonTimestampContext.collect(StreamSourceContexts.java:104)
at org.apache.flink.streaming.api.operators.StreamSourceContexts$NonTimestampContext.collectWithTimestamp(StreamSourceContexts.java:111)
at org.apache.flink.streaming.connectors.kafka.internals.AbstractFetcher.emitRecordWithTimestamp(AbstractFetcher.java:398)
at org.apache.flink.streaming.connectors.kafka.internal.Kafka010Fetcher.emitRecord(Kafka010Fetcher.java:89)
at org.apache.flink.streaming.connectors.kafka.internal.Kafka09Fetcher.runFetchLoop(Kafka09Fetcher.java:154)
at org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumerBase.run(FlinkKafkaConsumerBase.java:738)
at org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:87)
at org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:56)
at org.apache.flink.streaming.runtime.tasks.SourceStreamTask.run(SourceStreamTask.java:99)
at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:300)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:711)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.RuntimeException: Could not extract key from Foo("some-uuid","text",1540348398,1)
at org.apache.flink.streaming.runtime.partitioner.KeyGroupStreamPartitioner.selectChannels(KeyGroupStreamPartitioner.java:61)
at org.apache.flink.streaming.runtime.partitioner.KeyGroupStreamPartitioner.selectChannels(KeyGroupStreamPartitioner.java:32)
at org.apache.flink.runtime.io.network.api.writer.RecordWriter.emit(RecordWriter.java:106)
at org.apache.flink.streaming.runtime.io.StreamRecordWriter.emit(StreamRecordWriter.java:81)
at org.apache.flink.streaming.runtime.io.RecordWriterOutput.pushToRecordWriter(RecordWriterOutput.java:107)
... 22 more
Caused by: java.lang.NullPointerException
at com.bluevoyant.StreamingJob$$anonfun$3.apply(StreamingJob.scala:41)
at com.bluevoyant.StreamingJob$$anonfun$3.apply(StreamingJob.scala:40)
at org.apache.flink.streaming.api.scala.DataStream$$anon$2.getKey(DataStream.scala:411)
at org.apache.flink.streaming.runtime.partitioner.KeyGroupStreamPartitioner.selectChannels(KeyGroupStreamPartitioner.java:59)
... 26 moremy key partition is simple (partitionFactor = some number) .keyBy{ r =>
val h = fastHash(r.id) % partitionFactor
math.abs(h)
}again, this happens only on runtime not when I run it from intellij this so frustrating, any advice ? |
Re: Could not extract key Exception only on runtime not in dev environment
|
|
What r.id Value ?
Are you sure that is not null ? Miki. On Tue, 20 Nov 2018, 17:26 Avi Levi <[hidden email] wrote:
|
|
|
yes you can also see it in the message (and also it should have crushed also on the ide) further more to be sure I added a filter that looks like env .addSource(kafka_source) .filter(_.id != null) .keyBy{ r => val h = fastHash(r.id) % partitionFactor math.abs(h) } .map(...) and still the same On Tue, Nov 20, 2018 at 5:31 PM miki haiat <[hidden email]> wrote:
|
«
Return to (DEPRECATED) Apache Flink User Mailing List archive.
|
1 view|%1 views
| Free forum by Nabble | Edit this page |