mathieudruart commented on code in PR #9859:
URL: https://github.com/apache/pinot/pull/9859#discussion_r1031698031
##########
pinot-plugins/pinot-stream-ingestion/pinot-pulsar/src/main/java/org/apache/pinot/plugin/stream/pulsar/PulsarStreamMetadataProvider.java:
##########
@@ -156,11 +174,21 @@ public List<PartitionGroupMetadata>
computePartitionGroupMetadata(String clientI
LOGGER.warn("Error encountered while calculating pulsar partition group
metadata: " + e.getMessage(), e);
} finally {
closeConsumer(consumer);
+ deleteSubscription(_topic, subscription);
}
return newPartitionGroupMetadataList;
}
+ private void deleteSubscription(String topicName, String subscription) {
+ try {
+ _pulsarAdminClient.topics().deleteSubscription(topicName, subscription);
Review Comment:
I saw that it was possible to create lightweight subscriptions using non
durable subscription mode :
Consumer<byte[]> consumer = pulsarClient.newConsumer()
.topic("my-topic")
.subscriptionName("my-sub")
.subscriptionMode(SubscriptionMode.NonDurable)
.subscribe();
in this case the subscription is still stored in the Pulsar broker memory
(but no longer persisted with a durable cursor).
I think we should create them non-durable, but maybe also delete them to
clean the memory of the Pulsar brokers.
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