coderzc commented on code in PR #21187:
URL: https://github.com/apache/pulsar/pull/21187#discussion_r1462691000
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pulsar-broker/src/main/java/org/apache/pulsar/compaction/CompactedTopicImpl.java:
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@@ -100,7 +100,11 @@ public void asyncReadEntriesOrWait(ManagedCursor cursor,
boolean isFirstRead,
ReadEntriesCallback callback, Consumer
consumer) {
PositionImpl cursorPosition;
- if (isFirstRead &&
MessageId.earliest.equals(consumer.getStartMessageId())){
+ boolean readFromEarliest = isFirstRead &&
MessageId.earliest.equals(consumer.getStartMessageId())
+ && (!cursor.isDurable() ||
cursor.getName().equals(Compactor.COMPACTION_SUBSCRIPTION)
+ || cursor.getMarkDeletedPosition() == null
+ || cursor.getMarkDeletedPosition().getEntryId() == -1L);
Review Comment:
> Sorry, I mean why we need to check
cursor.getMarkDeletedPosition().getEntryId() == -1L?
Oh, since if `markDeletedPosition.entryID == -1L` then the md-position is an
invalid position, the initial md-position of the consumer will be set to it.
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