caigy commented on code in PR #5456:
URL: https://github.com/apache/rocketmq/pull/5456#discussion_r1014951958
##########
store/src/main/java/org/apache/rocketmq/store/ConsumeQueue.java:
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@@ -1001,4 +1002,20 @@ public void swapMap(int reserveNum, long
forceSwapIntervalMs, long normalSwapInt
public void cleanSwappedMap(long forceCleanSwapIntervalMs) {
mappedFileQueue.cleanSwappedMap(forceCleanSwapIntervalMs);
}
+
+ private int getEarliestOffset(int targetOffset, ByteBuffer byteBuffer,
long currentStoreTime) {
+ if (targetOffset == 0) {
+ return targetOffset;
+ }
+ int preOffset = targetOffset - CQ_STORE_UNIT_SIZE;
+ byteBuffer.position(preOffset);
+ long prePhyOffset = byteBuffer.getLong();
+ int preSize = byteBuffer.getInt();
+ long preStoreTime =
+
this.messageStore.getCommitLog().pickupStoreTimestamp(prePhyOffset, preSize);
+ if (currentStoreTime == preStoreTime) {
+ targetOffset = getEarliestOffset(preOffset, byteBuffer,
preStoreTime);
+ }
Review Comment:
If the batch is large, it may cause a deep recursion. Would it be better to
turn this recursion into iteration?
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