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AMQ-6947 - Update Queue metrics on expiration 

The updated dropMessage method only decrements the destination metrics
if a message is removed from the pagedInMessages list to prevent
duplicate updates.  There is also a case where we still need to update
metrics if the message never makes it into the pagedInMessages list in
the first place and that is on expiration so this patch fixes that. A
couple existing tests found this issue.
This commit is contained in:
Christopher L. Shannon (cshannon) 2018-04-18 09:04:11 -04:00
parent 021c82859c
commit 6e468b4540
1 changed files with 11 additions and 2 deletions
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13
activemq-broker/src/main/java/org/apache/activemq/broker/region/Queue.java
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@ -1872,8 +1872,7 @@ public class Queue extends BaseDestination implements Task, UsageListener, Index
pagedInMessagesLock.writeLock().lock();
try {
if (pagedInMessages.remove(reference) != null) {
getDestinationStatistics().getDequeues().increment();
getDestinationStatistics().getMessages().decrement();
updateMetricsOnMessageDrop();
}
} finally {
pagedInMessagesLock.writeLock().unlock();
@ -1881,6 +1880,11 @@ public class Queue extends BaseDestination implements Task, UsageListener, Index
}
}
private void updateMetricsOnMessageDrop() {
getDestinationStatistics().getDequeues().increment();
getDestinationStatistics().getMessages().decrement();
}
public void messageExpired(ConnectionContext context, MessageReference reference) {
messageExpired(context, null, reference);
}
@ -2037,6 +2041,11 @@ public class Queue extends BaseDestination implements Task, UsageListener, Index
if (processExpired && ref.isExpired()) {
if (broker.isExpired(ref)) {
messageExpired(createConnectionContext(), ref);
//We need to update the metrics here because the drop message
//method will only update if the message was removed from the
//pagedInMessages list which won't happen in this case
updateMetricsOnMessageDrop();
} else {
ref.decrementReferenceCount();
}