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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2019/04/22 23:36:49 UTC

[GitHub] [pulsar] merlimat opened a new pull request #4104: Reduce memory used in ClientCnx for pending lookups

merlimat opened a new pull request #4104: Reduce memory used in ClientCnx for pending lookups
URL: https://github.com/apache/pulsar/pull/4104
 
 
   ### Motivation
   
   Currently, each `ClientCnx` has a blocking queue for the max number of pending lookup requests. By default that ends up using an array of 45K objects. When a single process handles many connections (eg: broker or proxy), that will end up using 200K per connection just for this.
   
   ### Modifications
   
   Instead of using the fixed array size, use semaphore and a `ConcurrentLinkedQueue`

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