jbertram commented on a change in pull request #2992: ARTEMIS-2629 ensure queue
auto-delete after expiration
URL: https://github.com/apache/activemq-artemis/pull/2992#discussion_r383928613
##########
File path:
artemis-server/src/main/java/org/apache/activemq/artemis/core/server/impl/QueueManagerImpl.java
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@@ -84,8 +84,7 @@ public static boolean messageCountCheck(Queue queue) {
}
public static boolean delayCheck(Queue queue) {
- long consumerRemovedTimestamp = queue.getConsumerRemovedTimestamp();
- return consumerRemovedTimestamp != -1 && System.currentTimeMillis() -
consumerRemovedTimestamp >= queue.getAutoDeleteDelay();
+ return System.currentTimeMillis() - queue.getConsumerRemovedTimestamp()
>= queue.getAutoDeleteDelay();
Review comment:
It *will* change the semantic, and that was intended. This particular check
is no longer desirable as it will preclude auto-deleting a queue where all the
messages have expired but no consumer has ever connected. I implemented a new
check in
`org.apache.activemq.artemis.core.postoffice.impl.PostOfficeImpl.AddressQueueReaper#queueWasUsed`
which resolves this issue. The `delayCheck` method is only used internally as
it's not part of the user-facing API so I don't have any qualms with changing
its semantics.
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