thetumbled opened a new pull request, #4645:
URL: https://github.com/apache/bookkeeper/pull/4645

   
   ### Motivation
   
   Each time the bookie gc is triggered, the read latency of zookeeper soars 
high to tens of seconds, threatening the stability of the cluster.
   <img width="830" height="556" alt="image" 
src="https://github.com/user-attachments/assets/ef32fa3a-8fd1-477d-9822-25ffd4c2c868";
 />
   The unlimited zookeeper read operation in gc is responsible for the issue.
   <img width="830" height="346" alt="image" 
src="https://github.com/user-attachments/assets/cc29d93b-1313-4b80-93c1-03722982eaea";
 />
   
   
   ### Changes
   
   Add config `gcRateLimit` to limit the read operation rate in gc.
   
   > Otherwise:
   > 
   > - [ ] Make sure the PR title is formatted like:
   >     `<Issue #>: Description of pull request`
   >     `e.g. Issue 123: Description ...`
   > - [ ] Make sure tests pass via `mvn clean apache-rat:check install 
spotbugs:check`.
   > - [ ] Replace `<Issue #>` in the title with the actual Issue number.
   > 
   > ---
   


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