lhotari commented on PR #24663: URL: https://github.com/apache/pulsar/pull/24663#issuecomment-3224286974
I think I found an answer to the wrong schema instance when using `AUTO_PRODUCE_BYTES` with `message.getReaderSchema().get()` as the schema. https://github.com/apache/pulsar/blob/1220951ac74fb4742abbbd331d6e751234c47015/pulsar-client/src/main/java/org/apache/pulsar/client/impl/MessageImpl.java#L395-L413 For example, for Avro messages, this maps finally here: https://github.com/apache/pulsar/blob/3b7bef1ecaf4004f36e071faaf31ddb49895115c/pulsar-client/src/main/java/org/apache/pulsar/client/impl/schema/reader/MultiVersionAvroReader.java#L53-L54 It will always use the original Schema instance for reading and never refresh the "readerSchema" from the schema registry. This is why the mandatory validation before serializing the message to DLQ fails. Considering this fact, I think that that `AutoProduceBytesSchema.setRequireSchemaValidation(false)` is a very reasonable way to workaround this issue for the DLQ use case. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
