rfetishkevi opened a new pull request #6659: [ISSUE 6563][Broker] Invalidate 
managed ledgers zookeeper cache instead of reloading on watcher triggered
URL: https://github.com/apache/pulsar/pull/6659
 
 
   Fixes #6563
   
   ### Motivation
   Frequent topics creation/deletion triggers zookeeper children cache 
reloading for z-nodes 
**/managed-ledgers/<tenant_name>/<cluster_name>/<namespace_name>/persistent** 
more than needed.
   This creates additional load on zookeeper and broker, slows down brokers and 
makes them less stable. Also this causes scalability issues - adding more 
brokers increases operations duration even more.

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