rdhabalia commented on pull request #7499:
URL: https://github.com/apache/pulsar/pull/7499#issuecomment-656881392


   #7406 manages broker-wide throttling at the IO thread level and we can still 
reproduce above issue with the #7406 fix.
   This PR actually manages this back-pressure at the broker level rather at 
the thread level and keeps broker stable in all scenarios. This PR also doesn't 
use a mutex and shouldn't create a contention in write path.
   So, I think we will need this PR for OOM issues we are facing frequently.
   


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