liangyepianzhou commented on PR #25516:
URL: https://github.com/apache/pulsar/pull/25516#issuecomment-4285756297

    I have a question: if my ScalableTopic has a large number of sub-partitions 
— say, 1 million — would there be a situation where every broker needs to 
perform calculations across all 1 million sub-partitions of that ScalableTopic 
just to determine which sub-partitions belong to it? I'm a bit worried about 
scalability issues caused by this kind of metadata computation.


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