mattisonchao commented on code in PR #17562:
URL: https://github.com/apache/pulsar/pull/17562#discussion_r966658816
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pulsar-broker/src/main/java/org/apache/pulsar/broker/service/SystemTopicBasedTopicPoliciesService.java:
##########
@@ -252,20 +253,19 @@ public CompletableFuture<Void>
addOwnedNamespaceBundleAsync(NamespaceBundle name
return result;
}
- private void prepareInitPoliciesCache(NamespaceName namespace,
CompletableFuture<Void> result) {
+ private void prepareInitPoliciesCache(@Nonnull NamespaceName namespace,
CompletableFuture<Void> result) {
if (policyCacheInitMap.putIfAbsent(namespace, false) == null) {
CompletableFuture<SystemTopicClient.Reader<PulsarEvent>>
readerCompletableFuture =
createSystemTopicClientWithRetry(namespace);
readerCaches.put(namespace, readerCompletableFuture);
- readerCompletableFuture.whenComplete((reader, ex) -> {
- if (ex != null) {
- log.error("[{}] Failed to create reader on __change_events
topic", namespace, ex);
- result.completeExceptionally(ex);
-
cleanCacheAndCloseReader(reader.getSystemTopic().getTopicName().getNamespaceObject(),
false);
Review Comment:
**In the current time, the reader is null, because we got an exception. So,
we can't clean the cache and close the reader.**
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