[GitHub] ivankelly commented on issue #2688: Polices On Topic

[GitBox <gi...@apache.org>]

ivankelly commented on issue #2688: Polices On Topic
URL: https://github.com/apache/pulsar/issues/2688#issuecomment-427331833
 
 
   @codelipenghui
   
   This change will cause more load on zookeeper. For each topic loaded, we would have to do a read for the policy of that topic when loading the topic policy, even if no topic policy exists.
   
   How does the broker get notified of updated to the policy for a topic? If we add a watcher, that's a watcher per topic. We should consider if there's another way of doing this without placing more load on ZK, such as in a 'system' topic.

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