[GitHub] [pulsar] sijie added a comment to the discussion: [Pulsar Client] Is there a way to specify a schema version instead of uploading SchemaInfo to broker?

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GitHub user sijie added a comment to the discussion: [Pulsar Client] Is there a way to specify a schema version instead of uploading SchemaInfo to broker?

> Is it better if we just specify the schema version instead of whole SchemaInfo?

We send the schema definition when a client connect to a broker, so the broker can verify the compatibility of a schema. If we only send the schema version, there is no way for us to verify if the client is using the right schema. Because a client can just provide a random schema number and produce the data with a different schema.

> but in my scenario, the client needs to connect and close connection everytime it consume/produce message. 

Can you explain a bit more about your use case? I would like to understand more why you need to connect and close connection every time it consumes and produce messages. This is an anti-pattern of using Pulsar.


GitHub link: https://github.com/apache/pulsar/discussions/18459#discussioncomment-4133617

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