apoorvmittal10 commented on code in PR #17322:
URL: https://github.com/apache/kafka/pull/17322#discussion_r1801955789
##########
core/src/main/java/kafka/server/share/SharePartition.java:
##########
@@ -1058,36 +1084,57 @@ private void
maybeCompleteInitialization(CompletableFuture<Void> future) {
private AcquiredRecords acquireNewBatchRecords(
String memberId,
+ Iterable<? extends RecordBatch> batches,
long firstOffset,
- long lastOffset
+ long lastOffset,
+ int maxMessages
Review Comment:
Done, changed to maxFetchRecords. I missed earlier while renaming.
##########
core/src/main/java/kafka/server/share/SharePartition.java:
##########
@@ -1058,36 +1084,57 @@ private void
maybeCompleteInitialization(CompletableFuture<Void> future) {
private AcquiredRecords acquireNewBatchRecords(
String memberId,
+ Iterable<? extends RecordBatch> batches,
long firstOffset,
- long lastOffset
+ long lastOffset,
+ int maxMessages
) {
lock.writeLock().lock();
try {
+ // If same batch is fetched and previous batch is removed from the
cache then we need to
+ // update the batch first offset to endOffset, only if enfOffset
is passed the firstOffset.
+ // For an initial start of the share fetch from a topic partition
the endOffset will be initialized
+ // to 0 but firstOffset can be higher than 0.
+ long firstAcquiredOffset = firstOffset;
+ if (cachedState.isEmpty() && endOffset > firstAcquiredOffset) {
+ firstAcquiredOffset = endOffset;
+ }
+
+ // Check how many messages can be acquired from the batch.
+ long lastAcquiredOffset = lastOffset;
+ if (maxMessages < (lastAcquiredOffset - firstAcquiredOffset + 1)) {
Review Comment:
Done.
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