merlimat commented on a change in pull request #3061:
URL: https://github.com/apache/bookkeeper/pull/3061#discussion_r810522706
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File path:
bookkeeper-server/src/main/java/org/apache/bookkeeper/util/collections/ConcurrentLongLongPairHashMap.java
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@@ -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:
I think it would be a bit tricky to auto-adjust at runtime.
For now we could just leave it to configure at creation time. I agree that
for cases like pending acks we need to be aggressive in reclaiming space but I
don't see how to change that based on load.
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