Pedro Mázala created FLINK-30721:
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Summary: The confluent schema registry is not compatible with
Apicurio shcema registry
Key: FLINK-30721
URL: https://issues.apache.org/jira/browse/FLINK-30721
Project: Flink
Issue Type: Bug
Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile)
Reporter: Pedro Mázala
With the format `avro-confluent`, it is impossible to use
[Apicurio|https://www.apicur.io/].
[The
code|https://github.com/apache/flink/blob/master/flink-formats/flink-avro-confluent-registry/src/main/java/org/apache/flink/formats/avro/registry/confluent/ConfluentSchemaRegistryCoder.java#L71]
reads a 4-byte integer (see `readInt` documentation
[here|https://docs.oracle.com/javase/7/docs/api/java/io/DataInput.html#readInt()])
and Apicurio stores its schema ids as a long ([8
bytes|https://docs.oracle.com/javase/7/docs/api/java/io/DataInput.html#readLong()]).
The solution could be adding the schema size to be read from the log message.
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