horizonzy commented on code in PR #3365:
URL: https://github.com/apache/bookkeeper/pull/3365#discussion_r909157231
##########
bookkeeper-server/src/main/java/org/apache/bookkeeper/meta/AbstractZkLedgerManager.java:
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@@ -402,6 +402,7 @@ public void registerLedgerMetadataListener(long ledgerId,
LedgerMetadataListener
}
}
synchronized (listenerSet) {
+ listenerSet = listeners.computeIfAbsent(ledgerId, k -> new
HashSet<>());
Review Comment:
> I think this should be before the synchronized block, not inside of it
Maybe not, if outside, the race condition problem still exist.
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