eolivelli commented on a change in pull request #3061:
URL: https://github.com/apache/bookkeeper/pull/3061#discussion_r810505974



##########
File path: 
bookkeeper-server/src/main/java/org/apache/bookkeeper/util/collections/ConcurrentLongLongPairHashMap.java
##########
@@ -220,22 +329,36 @@ public void forEach(BiConsumerLongPair processor) {
     }
 
     // A section is a portion of the hash map that is covered by a single
+    @Setter
     @SuppressWarnings("serial")
     private static final class Section extends StampedLock {
         // Keys and values are stored interleaved in the table array
         private volatile long[] table;
 
         private volatile int capacity;
         private volatile int size;
-        private int usedBuckets;
-        private int resizeThreshold;
-
-        Section(int capacity) {
+        private volatile int usedBuckets;
+        private int resizeThresholdUp;
+        private int resizeThresholdBelow;
+        private volatile float mapFillFactor;

Review comment:
       Why do we want these to be modifiable at runtime?
   I cannot find a good usecase.
   
   We should have a smaller API, please remember that every public method is 
'public API' and we will have to maintain it I'm the future

##########
File path: 
bookkeeper-server/src/main/java/org/apache/bookkeeper/util/collections/ConcurrentLongLongPairHashMap.java
##########
@@ -30,6 +30,8 @@
 import java.util.Map;
 import java.util.concurrent.locks.StampedLock;
 
+import lombok.Setter;

Review comment:
       This probably useless 




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