poorbarcode commented on code in PR #16707:
URL: https://github.com/apache/pulsar/pull/16707#discussion_r926557032
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pulsar-broker/src/main/java/org/apache/pulsar/broker/transaction/pendingack/impl/MLPendingAckStore.java:
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@@ -240,13 +280,48 @@ public void addFailed(ManagedLedgerException exception,
Object ctx) {
if (exception instanceof
ManagedLedgerException.ManagedLedgerAlreadyClosedException) {
managedLedger.readyToCreateNewLedger();
}
- buf.release();
completableFuture.completeExceptionally(new
PersistenceException(exception));
}
}, null);
return completableFuture;
}
+ /**
+ * Build the index mapping of Transaction pending ack log (aka t-log) and
Topic message log (aka m-log).
+ * When m-log has been ack, t-log which holds m-log is no longer useful,
this method builder the mapping of them.
+ *
+ * If a Ledger Entry has many t-log, we only need to care about the record
that carries the largest acknowledgement
+ * info. Because all Commit/Abort log after this record describes behavior
acknowledgement, if the behavior
+ * acknowledgement has been handle correct, these Commit/Abort log is no
longer useful.
+ * @param logPosition The position of batch log Entry.
+ * @param logList Pending ack log records in a batch log Entry.
+ */
+ private void handleMetadataEntry(PositionImpl logPosition,
List<PendingAckMetadataEntry> logList) {
+ // Find the record that carries the largest ack info, and call
"handleMetadataEntry(position, pendingAckLog)"
+ PendingAckMetadataEntry pendingAckLogHasMaxAckPosition = null;
+ PositionImpl maxAcknowledgementPosition = this.maxAckPosition;
+ for (int i = logList.size() - 1; i >= 0; i--){
+ PendingAckMetadataEntry pendingAckLog = logList.get(i);
+ if (pendingAckLog.getPendingAckOp() == PendingAckOp.ABORT
+ && pendingAckLog.getPendingAckOp() == PendingAckOp.COMMIT)
{
+ continue;
+ }
+ if (pendingAckLog.getPendingAckMetadatasList().isEmpty()){
+ continue;
+ }
+ for (PendingAckMetadata ack :
pendingAckLog.getPendingAckMetadatasList()){
+ if (maxAcknowledgementPosition.compareTo(ack.getLedgerId(),
ack.getEntryId()) < 0){
+ maxAcknowledgementPosition =
PositionImpl.get(ack.getLedgerId(), ack.getEntryId());
+ pendingAckLogHasMaxAckPosition = pendingAckLog;
+ }
+ }
Review Comment:
Already fixed.
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