Pomelongan commented on code in PR #17946:
URL: https://github.com/apache/pulsar/pull/17946#discussion_r995389338
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pulsar-broker/src/main/java/org/apache/pulsar/broker/admin/impl/PersistentTopicsBase.java:
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@@ -4552,6 +4555,75 @@ private CompletableFuture<Void>
createSubscriptions(TopicName topicName, int num
return result;
}
+ /**
+ * It creates subscriptions for new partitions of existing
partitioned-topics.
+ *
+ * @param topicName : topic-name: persistent://prop/cluster/ns/topic
+ * @param numPartitions : number partitions for the topics
+ *
+ */
+ private CompletableFuture<Void> createMissedSubscriptionsAsync(TopicName
topicName, int numPartitions) {
+ CompletableFuture<Void> result = new CompletableFuture<>();
+ PulsarAdmin admin;
+ try {
+ admin = pulsar().getAdminClient();
+ } catch (PulsarServerException e1) {
+ result.completeExceptionally(e1);
+ return result;
+ }
+
admin.topics().getStatsAsync(topicName.getPartition(0).toString()).thenAccept(stats
-> {
Review Comment:
> The partition-0 maybe also created by the `CreateMissedPartitions`, I
think we should list the subscriptions of the partitioned topic.
>
> And for Pulsar, users can subscription to a specific partition, which
means partition-0, partition-1 might have different subscriptions.
I think we can add a parameter to specify the subscription name list to be
created, which can solve these two problems at the same time. How about this？
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