codelipenghui commented on code in PR #19201:
URL: https://github.com/apache/pulsar/pull/19201#discussion_r1089915801
##########
pulsar-broker/src/main/java/org/apache/pulsar/broker/TransactionMetadataStoreService.java:
##########
@@ -133,54 +133,56 @@ public CompletableFuture<Void>
handleTcClientConnect(TransactionCoordinatorID tc
return;
}
- openTransactionMetadataStore(tcId).thenAccept((store)
-> internalPinnedExecutor.execute(() -> {
+ openTransactionMetadataStore(tcId).thenAccept((store)
-> {
stores.put(tcId, store);
LOG.info("Added new transaction meta store {}",
tcId);
- long endTime = System.currentTimeMillis() +
HANDLE_PENDING_CONNECT_TIME_OUT;
- while (true) {
- // prevent thread in a busy loop.
- if (System.currentTimeMillis() < endTime) {
- CompletableFuture<Void> future =
deque.poll();
- if (future != null) {
- // complete queue request future
- future.complete(null);
+ internalPinnedExecutor.execute(() -> {
+ long endTime = System.currentTimeMillis() +
HANDLE_PENDING_CONNECT_TIME_OUT;
+ while (true) {
+ // prevent thread in a busy loop.
+ if (System.currentTimeMillis() < endTime) {
+ CompletableFuture<Void> future =
deque.poll();
+ if (future != null) {
+ // complete queue request future
+ future.complete(null);
+ } else {
+ break;
+ }
} else {
+ deque.clear();
break;
}
- } else {
- deque.clear();
- break;
}
- }
- completableFuture.complete(null);
- tcLoadSemaphore.release();
- })).exceptionally(e -> {
+ completableFuture.complete(null);
Review Comment:
Yes, but before we complete the `completableFuture` here, we have added the
item to the map. Why the subsequent request is not able to get from the map?
The subsequent request only happened after the `completableFuture` was done,
right? And the map is a `ConcurrentHashMap`, so what is the race condition
here? Could you please provide more details about the race condition? How does
it happen?
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
