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https://issues.apache.org/jira/browse/FLINK-24544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18036204#comment-18036204
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Robert Metzger commented on FLINK-24544:
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Awesome, thanks for picking up this ticket! I assigned you
> Failure when using Kafka connector in Table API with Avro and Confluent
> schema registry
> ----------------------------------------------------------------------------------------
>
> Key: FLINK-24544
> URL: https://issues.apache.org/jira/browse/FLINK-24544
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Kafka, Formats (JSON, Avro, Parquet, ORC,
> SequenceFile), Table SQL / Ecosystem
> Affects Versions: 1.13.1
> Reporter: Francesco Guardiani
> Assignee: Milind L
> Priority: Major
> Attachments: flink-deser-avro-enum.zip
>
>
> A user reported in the [mailing
> list|https://lists.apache.org/thread.html/re38a07f6121cc580737a20c11574719cfe554e58d99817f79db9bb4a%40%3Cuser.flink.apache.org%3E]
> that Avro deserialization fails when using Kafka, Avro and Confluent Schema
> Registry:
> {code:java}
> Caused by: java.io.IOException: Failed to deserialize Avro record.
> at
> org.apache.flink.formats.avro.AvroRowDataDeserializationSchema.deserialize(AvroRowDataDeserializationSchema.java:106)
> at
> org.apache.flink.formats.avro.AvroRowDataDeserializationSchema.deserialize(AvroRowDataDeserializationSchema.java:46)
>
> at
> org.apache.flink.api.common.serialization.DeserializationSchema.deserialize(DeserializationSchema.java:82)
> at
> org.apache.flink.streaming.connectors.kafka.table.DynamicKafkaDeserializationSchema.deserialize(DynamicKafkaDeserializationSchema.java:113)
> at
> org.apache.flink.streaming.connectors.kafka.internals.KafkaFetcher.partitionConsumerRecordsHandler(KafkaFetcher.java:179)
>
> at
> org.apache.flink.streaming.connectors.kafka.internals.KafkaFetcher.runFetchLoop(KafkaFetcher.java:142)
> at
> org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumerBase.run(FlinkKafkaConsumerBase.java:826)
> at
> org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:110)
> at
> org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:66)
> at
> org.apache.flink.streaming.runtime.tasks.SourceStreamTask$LegacySourceFunctionThread.run(SourceStreamTask.java:269)
> Caused by: org.apache.avro.AvroTypeException: Found my.type.avro.MyEnumType,
> expecting union
> at org.apache.avro.io.ResolvingDecoder.doAction(ResolvingDecoder.java:308)
> at org.apache.avro.io.parsing.Parser.advance(Parser.java:86)
> at org.apache.avro.io.ResolvingDecoder.readIndex(ResolvingDecoder.java:275)
> at
> org.apache.avro.generic.GenericDatumReader.readWithoutConversion(GenericDatumReader.java:187)
> at
> org.apache.avro.generic.GenericDatumReader.readArray(GenericDatumReader.java:298)
> at
> org.apache.avro.generic.GenericDatumReader.readWithoutConversion(GenericDatumReader.java:183)
> at
> org.apache.avro.generic.GenericDatumReader.read(GenericDatumReader.java:160)
> at
> org.apache.avro.generic.GenericDatumReader.readWithoutConversion(GenericDatumReader.java:187)
> at
> org.apache.avro.generic.GenericDatumReader.read(GenericDatumReader.java:160)
> at
> org.apache.avro.generic.GenericDatumReader.readField(GenericDatumReader.java:259)
> at
> org.apache.avro.generic.GenericDatumReader.readRecord(GenericDatumReader.java:247)
> at
> org.apache.avro.generic.GenericDatumReader.readWithoutConversion(GenericDatumReader.java:179)
> at
> org.apache.avro.generic.GenericDatumReader.read(GenericDatumReader.java:160)
> at
> org.apache.avro.generic.GenericDatumReader.read(GenericDatumReader.java:153)
> at
> org.apache.flink.formats.avro.RegistryAvroDeserializationSchema.deserialize(RegistryAvroDeserializationSchema.java:81)
> at
> org.apache.flink.formats.avro.AvroRowDataDeserializationSchema.deserialize(AvroRowDataDeserializationSchema.java:103)
> ... 9 more
> {code}
> Look in the attachments for a reproducer.
> Same data serialized to a file works fine (look the filesystem example in the
> reproducer)
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