lhotari edited a comment on issue #10136:
URL: https://github.com/apache/pulsar/issues/10136#issuecomment-829183581


   For example, In the k8s Helm chart deployment, an environment variable can 
be set for the broker by adding it under `broker.configData` in the 
`values.yaml` for the deployment.
   
   ```
   broker:
     configData:
       PULSAR_EXTRA_OPTS: -Dpulsar.allocator.leak_detection=Simple 
-Dpulsar.allocator.exit_on_oom=true 
-Dio.netty.recycler.maxCapacity.default=1000 
-Dio.netty.recycler.linkCapacity=1024
   ```
   
   `-Dpulsar.allocator.exit_on_oom=true 
-Dio.netty.recycler.maxCapacity.default=1000 
-Dio.netty.recycler.linkCapacity=1024` are the defaults in `PULSAR_EXTRA_OPTS` 
which would get overridden unless they are also specified in the new value.
   


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