codelipenghui opened a new issue #14880:
URL: https://github.com/apache/pulsar/issues/14880
**Describe the bug**
Using pulsar-admin to check the topic internal stats for a transaction
topic, you will see the following non-durable cursor.
```
"transaction-buffer-sub" : {
"markDeletePosition" : "743:3810",
"readPosition" : "743:3811",
"waitingReadOp" : false,
"pendingReadOps" : 0,
"messagesConsumedCounter" : 0,
"cursorLedger" : -1,
"cursorLedgerLastEntry" : -1,
"individuallyDeletedMessages" : "[]",
"lastLedgerSwitchTimestamp" : "2022-03-25T23:13:08.612+08:00",
"state" : "Uninitialized",
"numberOfEntriesSinceFirstNotAckedMessage" : 1,
"totalNonContiguousDeletedMessagesRange" : 0,
"subscriptionHavePendingRead" : false,
"subscriptionHavePendingReplayRead" : false,
"properties" : { }
}
```
But from the source code
```java
if (lastConfirmedEntry.getEntryId() != -1) {
while (lastConfirmedEntry.compareTo(currentLoadPosition) > 0
&& fillEntryQueueCallback.fillQueue()) {
Entry entry = entryQueue.poll();
if (entry != null) {
try {
currentLoadPosition = PositionImpl.get(entry.getLedgerId(),
entry.getEntryId());
callBack.handleTxnEntry(entry);
} finally {
entry.release();
}
} else {
try {
Thread.sleep(1);
} catch (InterruptedException e) {
//no-op
}
}
}
}
closeCursor(managedCursor);
```
The cursor should be closed after the transaction buffer is recovered.
**Additional context**
https://github.com/apache/pulsar/commit/f0a2171cbad894cec5bfb2d4de31cb8de32a3183
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