[GitHub] codelipenghui opened a new pull request #3111: Improve get topic reference

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

codelipenghui opened a new pull request #3111: Improve get topic reference
URL: https://github.com/apache/pulsar/pull/3111
 
 
   ### Motivation
   
   Create a partitioned topic, before client use this topic or create a subscription on this topic, when get stats of internal topic, will get `Topic not found` error.  But actually partitioned topic is already created, 
   internal topic have not been generated yet.
   
   ### Modifications
   
   Add following check:
   
   1. getTopicReference() on a partitioned internal topic and partitioned topic is not exist will get `Partitioned Topic not found`
   2. getTopicReference() on a partitioned internal topic, partitioned topic is exist but internal topics not exist will get `Internal topics have not been generated yet`

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