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https://issues.apache.org/jira/browse/FLINK-18800?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17298034#comment-17298034
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Sören Henning commented on FLINK-18800:
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I'm having the same issue, but I'm not sure if it's directly related to
Avro/Confluent Schema Registry. Is there really no direct way to serialize a
{{Tuple2<K, V>}} by specifying both a {{KafkaSerializationSchema<K>}} and a
{{KafkaSerializationSchema<V>}}?
> Avro serialization schema doesn't support Kafka key/value serialization
> ------------------------------------------------------------------------
>
> Key: FLINK-18800
> URL: https://issues.apache.org/jira/browse/FLINK-18800
> Project: Flink
> Issue Type: Task
> Components: Connectors / Kafka, Formats (JSON, Avro, Parquet, ORC,
> SequenceFile)
> Affects Versions: 1.11.0, 1.11.1
> Reporter: Mohammad Hossein Gerami
> Priority: Critical
>
> {color:#ff8b00}AvroSerializationSchema{color} and
> {color:#ff8b00}ConfluentRegistryAvroSerializationSchema{color} doesn't
> support Kafka key/value serialization. I implemented a custom Avro
> serialization schema for solving this problem.
> please consensus to implement new class to support kafka key/value
> serialization.
> for example in the Flink must implement a class like this:
> {code:java}
> public class KafkaAvroRegistrySchemaSerializationSchema extends
> RegistryAvroSerializationSchema<GenericRecord> implements
> KafkaSerializationSchema<GenericRecord>{code}
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