poorbarcode commented on code in PR #16247:
URL: https://github.com/apache/pulsar/pull/16247#discussion_r958321455
##########
pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentTopic.java:
##########
@@ -1243,86 +1247,145 @@ public CompletableFuture<Void> close() {
}
/**
- * Close this topic - close all producers and subscriptions associated
with this topic.
- *
+ * Close this topic - close all resources associated with this topic:
+ * 1.clients (producers and consumers) {@link #asyncCloseClients()}.
+ * 2.managed ledger {@link #asyncCloseLedger()}.
+ * 3.limiters {@link #closeLimiters()}.
* @param closeWithoutWaitingClientDisconnect don't wait for client
disconnect and forcefully close managed-ledger
* @return Completable future indicating completion of close operation
*/
@Override
public CompletableFuture<Void> close(boolean
closeWithoutWaitingClientDisconnect) {
- CompletableFuture<Void> closeFuture = new CompletableFuture<>();
-
lock.writeLock().lock();
try {
// closing managed-ledger waits until all
producers/consumers/replicators get closed. Sometimes, broker
// forcefully wants to close managed-ledger without waiting all
resources to be closed.
- if (!isClosingOrDeleting || closeWithoutWaitingClientDisconnect) {
- fenceTopicToCloseOrDelete();
+ if (isClosingOrDeleting){
+ if (closeWithoutWaitingClientDisconnect){
+ return this.fullyCloseFuture;
+ } else {
+ // Why not return this.fullyCloseFuture ?
+ // Just keep the same implementation as before.
+ log.warn("[{}] Topic is already being closed or deleted",
topic);
+ return CompletableFuture.failedFuture(new
TopicFencedException("Topic is already fenced"));
+ }
} else {
- log.warn("[{}] Topic is already being closed or deleted",
topic);
- closeFuture.completeExceptionally(new
TopicFencedException("Topic is already fenced"));
- return closeFuture;
+ fenceTopicToCloseOrDelete();
+ this.fullyCloseFuture = new CompletableFuture<>();
}
} finally {
lock.writeLock().unlock();
}
+ // Declare result.
+ CompletableFuture<Void> resultFuture = new CompletableFuture<>();
+ // Close limiters.
+ try {
+ closeLimiters();
+ } catch (Exception t){
+ log.error("[{}] Error closing topic", topic, t);
+ unfenceTopicToResumeWithLock();
+ this.fullyCloseFuture.completeExceptionally(t);
+ return CompletableFuture.failedFuture(t);
+ }
+
+ // Close client components.
+ CompletableFuture<Void> closeClientsFuture = asyncCloseClients();
Review Comment:
The code in line:1294~line:1298 handles the logic
`closeWithoutWaitingClientDisconnect`:
```java
CompletableFuture<Void> closePhase2Future;
if (closeWithoutWaitingClientDisconnect){
closePhase2Future = asyncCloseLedger();
} else {
closePhase2Future = closeClientsFuture.thenCompose(__ ->
asyncCloseLedger());
}
```
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