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Posted to commits@pulsar.apache.org by te...@apache.org on 2022/10/31 06:14:24 UTC

[pulsar] 02/05: Avoid unnecessary creation of BitSetRecyclable objects (#17998)

This is an automated email from the ASF dual-hosted git repository.

technoboy pushed a commit to branch branch-2.11
in repository https://gitbox.apache.org/repos/asf/pulsar.git

commit d612b8f304deaca77fa94500c18bfcc1756d0d11
Author: LinChen <15...@qq.com>
AuthorDate: Thu Oct 13 09:51:48 2022 +0800

    Avoid unnecessary creation of BitSetRecyclable objects (#17998)
    
    Co-authored-by: leolinchen <le...@tencent.com>
---
 .../org/apache/bookkeeper/mledger/impl/ManagedCursorImpl.java    | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/managed-ledger/src/main/java/org/apache/bookkeeper/mledger/impl/ManagedCursorImpl.java b/managed-ledger/src/main/java/org/apache/bookkeeper/mledger/impl/ManagedCursorImpl.java
index ed861e6830f..3c3bad218d4 100644
--- a/managed-ledger/src/main/java/org/apache/bookkeeper/mledger/impl/ManagedCursorImpl.java
+++ b/managed-ledger/src/main/java/org/apache/bookkeeper/mledger/impl/ManagedCursorImpl.java
@@ -2168,11 +2168,12 @@ public class ManagedCursorImpl implements ManagedCursor {
                             individualDeletedMessages);
                     }
                 } else if (config.isDeletionAtBatchIndexLevelEnabled() && batchDeletedIndexes != null) {
-                    BitSetRecyclable bitSet = batchDeletedIndexes.computeIfAbsent(position, (v) ->
-                        BitSetRecyclable.create().resetWords(position.ackSet));
                     BitSetRecyclable givenBitSet = BitSetRecyclable.create().resetWords(position.ackSet);
-                    bitSet.and(givenBitSet);
-                    givenBitSet.recycle();
+                    BitSetRecyclable bitSet = batchDeletedIndexes.computeIfAbsent(position, (v) -> givenBitSet);
+                    if (givenBitSet != bitSet) {
+                        bitSet.and(givenBitSet);
+                        givenBitSet.recycle();
+                    }
                     if (bitSet.isEmpty()) {
                         PositionImpl previousPosition = ledger.getPreviousPosition(position);
                         individualDeletedMessages.addOpenClosed(previousPosition.getLedgerId(),