3pacccccc commented on PR #24663: URL: https://github.com/apache/pulsar/pull/24663#issuecomment-3224628729
> 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. @lhotari thank you so much for sharing this. this is very helpful and it's clear to me now. BTW, this solution is more reasonable than my initial attempt. -- 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]
