lhotari commented on code in PR #18390:
URL: https://github.com/apache/pulsar/pull/18390#discussion_r1312669549
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pulsar-common/src/main/java/org/apache/pulsar/common/util/collections/ConcurrentLongLongPairHashMap.java:
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@@ -322,7 +325,10 @@ private static final class Section extends StampedLock {
LongPair get(long key1, long key2, int keyHash) {
long stamp = tryOptimisticRead();
boolean acquiredLock = false;
- int bucket = signSafeMod(keyHash, capacity);
+ // add local variable here, so OutOfBound won't happen
+ long[] table = this.table;
+ // calculate table.length / 4 as capacity to avoid rehash changing
capacity
+ int bucket = signSafeMod(keyHash, table.length / ITEM_SIZE);
Review Comment:
I'll create a separate PR to fix that issue. The main impact is non-optimal
lookup since hash collisions will happen when they shouldn't.
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