michaelandrepearce commented on a change in pull request #2510: [ARTEMIS-2156]
Message Duplication when using exclusive divert and clustering
URL: https://github.com/apache/activemq-artemis/pull/2510#discussion_r249592329
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File path:
artemis-server/src/main/java/org/apache/activemq/artemis/core/postoffice/impl/BindingsImpl.java
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@@ -117,7 +117,9 @@ public void addBinding(final Binding binding) {
logger.trace("addBinding(" + binding + ") being called");
}
if (binding.isExclusive()) {
- exclusiveBindings.add(binding);
+ if (!exclusiveBindings.contains(binding)) {
Review comment:
@jbertram i agree for scope of this PR simply the changing exclusiveBindings
to CopyOnWriteArraySet is enough.
I was merely commenting about the ordering behaviour of the set, i probably
confused things.
Just an FYI if you cast the bindings to CopyOnWriteArrayList, then you can
replace the
if (!bindings.contains(binding)) {
bindings.add(binding);
}
with
bindings.addIfAbsent(binding);
to make it concurrent safe.
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