poorbarcode commented on code in PR #24945:
URL: https://github.com/apache/pulsar/pull/24945#discussion_r2508548877
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pulsar-broker/src/main/java/org/apache/pulsar/broker/transaction/buffer/impl/TopicTransactionBuffer.java:
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@@ -108,6 +106,9 @@ public class TopicTransactionBuffer extends
TopicTransactionBufferState implemen
private final AbortedTxnProcessor.SnapshotType snapshotType;
private final MaxReadPositionCallBack maxReadPositionCallBack;
+ private volatile CompletableFuture<Void> firstSnapshottingFuture = new
CompletableFuture<>();
+ /** if the first snapshot is in progress, it will pending following
publishing tasks. **/
+ private final LinkedList<PendingAppendingTxnBufferTask>
pendingAppendingTxnBufferTasks = new LinkedList<>();
Review Comment:
`ArrayList` will cause expansion and occupation of large blocks of memory,
and has no benefit on the use case here, so `LinkedList` is better
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