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https://issues.apache.org/jira/browse/ARTEMIS-2156?focusedWorklogId=188201&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-188201
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ASF GitHub Bot logged work on ARTEMIS-2156:
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Author: ASF GitHub Bot
Created on: 22/Jan/19 14:17
Start Date: 22/Jan/19 14:17
Worklog Time Spent: 10m
Work Description: jbertram commented on issue #2510: [ARTEMIS-2156]
Message Duplication when using exclusive divert and clustering
URL: https://github.com/apache/activemq-artemis/pull/2510#issuecomment-456414742
Couple of house-keeping items:
- Squash all the commits.
- Don't put square brackets around the JIRA reference in the commit message.
- You can trigger the PR build again by running `git commit --amend`. You
don't have to actually change the commit at all. Just close the editor and git
will re-apply the commit with a new ID. After than run `git push -f <repo>
<branch>`.
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Issue Time Tracking
-------------------
Worklog Id: (was: 188201)
Time Spent: 5h 50m (was: 5h 40m)
> Message Duplication when using exclusive divert and clustering
> --------------------------------------------------------------
>
> Key: ARTEMIS-2156
> URL: https://issues.apache.org/jira/browse/ARTEMIS-2156
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Components: Broker
> Affects Versions: 1.5.5, 2.6.3
> Reporter: Luis Miguel De Bello
> Priority: Major
> Attachments: ArtemisClient1.5.5.gif, ArtemisClient2.6.2.gif,
> Consumer.java, ConsumerClient2-6-0.java, Duplicate Object.png, Producer.java,
> ProducerClient2-6-0.java, broker1.xml, broker1Server2-6-3.xml, broker2.xml,
> broker2Server2-6-3.xml
>
> Time Spent: 5h 50m
> Remaining Estimate: 0h
>
> We bumped into the following issue, we start getting duplicate message after
> doing some analysis we saw the "exclusiveBindings" in
> "org.apache.activemq.artemis.core.postoffice.impl.BindingsImpl" got the same
> binding twice.
> The if statement in "addBinding"
> {code:java}
> if (binding.isExclusive()) {
> exclusiveBindings.add(binding);
> } else {
> SimpleString routingName = binding.getRoutingName();
> List<Binding> bindings = routingNameBindingMap.get(routingName);
> if (bindings == null) {
> bindings = new CopyOnWriteArrayList<>();
> List<Binding> oldBindings =
> routingNameBindingMap.putIfAbsent(routingName, bindings);
> if (oldBindings != null) {
> bindings = oldBindings;
> }
> }
> if (!bindings.contains(binding)) {
> bindings.add(binding);
> }
> }{code}
> Does not do any check in case the binding already exists, this kind of test
> is done for non exclusive binding.
> I was not able to create an automatic test in the base code because the issue
> seems related to the client version.
> Scenario:
> - Cluster of two instances (UDP) Artemis Server 1.5.5
> - Clean Up /data/bindings/\*, ../data/journal/\*, ../data/paging/\*
> - Exclusive Divert from jms.queue.\*.Provider.\*.Agent.\*.Status to
> jms.queue.Notifications
> - Java program using artemis client
> - Start Consumer in Instance 1 (jms.queue.Notifications)
> - Send Message to Instance 1
> - Send Message to Instance 2
> - Send Message to Instance 1
> Expectations:
> - We expect to get 3 message
> Results:
> We got 3 messages when the client uses version 1.5.5
> We got 5 messages when the client uses version 2.6.2
>
> I enclose two gif one for client
> "org.apache.activemq:artemis-jms-client:1.5.5" where it works ok and another
> for "org.apache.activemq:artemis-jms-client:2.6.2" where you can appreciate
> the issue.
> Also I enclose one screenshot where you can see the same object is added
> twice.
> I will also include the broker.xml file to configure the udp cluster + the
> code use for the producer and consumer.
> Note: The only difference when using client 1.5.5 is the queue name
> definition I needed to remove the jms.queue prefix.
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