[jira] [Created] (FLINK-8378) Serialization and Deserialization of Kafka Avro messages from and to Row with Confluent Schema Registry

["Christophe Philemotte (JIRA)" <ji...@apache.org>]

Christophe Philemotte created FLINK-8378:
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             Summary: Serialization and Deserialization of Kafka Avro messages from and to Row with Confluent Schema Registry
                 Key: FLINK-8378
                 URL: https://issues.apache.org/jira/browse/FLINK-8378
             Project: Flink
          Issue Type: New Feature
          Components: Type Serialization System
    Affects Versions: 1.3.2, 1.4.0
            Reporter: Christophe Philemotte
            Priority: Minor


I need to serialize and deserialize Avro messages from Kafka whose the schema are stored in the Confluent Schema Registry to Row instances.

As far as I know,

* KafkaAvroTableSource does not fetch the schema from the registry
* there is no TableSink for KafkaAvro
* the AvroRowSerializationSchema and AvroRowDeserializationSchema needs a known Avro schema
* there is none wrapper of the Kafka serdes

So, for now it's not possible out of the box. Still, I think it's an interesting use case especially considering the Table & SQL API.

I've found some issues related to my case:

* https://issues.apache.org/jira/browse/FLINK-4050
* https://issues.apache.org/jira/browse/FLINK-2597

It seems to me that they have wider scope, that's why I'm creating this issue. I hope I'm doing well.

I've managed to implement a serializer and deserializer that are between the Kafka ones and the Flink AvroRow ones.

If you think such serdes would be a nice addition, I'm ready to contribute and rework my implementation (notably to work with TypeSerializers if possible).



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