gaozhangmin commented on code in PR #3522:
URL: https://github.com/apache/bookkeeper/pull/3522#discussion_r990951154
##########
bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/BookieImpl.java:
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@@ -935,9 +936,10 @@ private void addEntryInternal(LedgerDescriptor handle,
ByteBuf entry,
// journal `addEntry` should happen after the entry is added to ledger
storage.
// otherwise the journal entry can potentially be rolled before the
ledger is created in ledger storage.
- if (masterKeyCache.get(ledgerId) == null) {
+ if (masterKeyCache.getIfPresent(ledgerId) == null) {
// Force the load into masterKey cache
- byte[] oldValue = masterKeyCache.putIfAbsent(ledgerId, masterKey);
+ byte[] oldValue = masterKeyCache.getIfPresent(ledgerId);
+ masterKeyCache.put(ledgerId, masterKey);
if (oldValue == null) {
Review Comment:
If the cache is expired, but ledger is still not rolled, what will happen
with below code will executed multiple times
```
getJournal(ledgerId).logAddEntry(bb, false /* ackBeforeSync */, new
NopWriteCallback(), null);
```
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