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https://issues.apache.org/jira/browse/JAMES-2295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16542842#comment-16542842
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ASF GitHub Bot commented on JAMES-2295:
---------------------------------------
Github user chibenwa commented on a diff in the pull request:
https://github.com/apache/james-project/pull/127#discussion_r202307893
--- Diff:
server/queue/queue-jms/src/test/java/org/apache/james/queue/jms/JMSMailQueueTest.java
---
@@ -49,7 +49,8 @@ public void setUp(BrokerService broker) throws Exception {
RawMailQueueItemDecoratorFactory mailQueueItemDecoratorFactory =
new RawMailQueueItemDecoratorFactory();
NoopMetricFactory metricFactory = new NoopMetricFactory();
String queueName = BrokerExtension.generateRandomQueueName(broker);
- mailQueue = new JMSMailQueue(connectionFactory,
mailQueueItemDecoratorFactory, queueName, metricFactory);
+ ConsumerOptions consumerOptions = name -> name +
"?consumer.prefetchSize=0";
--- End diff --
> Please, clarify how do you see the JMSConsumerOptions object creation? It
would be through new or through builder class?
Through a builder, no?
> What do you think about both options combined together (public
constructor + builder) ?
Why using a constructor when I can use a builder? Isn't it better to
enforce builder use?
> In case of builder, I suppose we should expose single put(String, String)
and provide users context free consumer options builder.
The problem with that kind of API is that I got not idea about values I
should pass. We can still expose the `put` you suggest, but we need a
self-discoverable API for options we know.
WDYT?
> JMS mailqueue deadlock when a single thread issue several consume
> -----------------------------------------------------------------
>
> Key: JAMES-2295
> URL: https://issues.apache.org/jira/browse/JAMES-2295
> Project: James Server
> Issue Type: Bug
> Components: Queue
> Affects Versions: 3.0.0, master, 3.0.1
> Reporter: Tellier Benoit
> Priority: Major
> Labels: bug
>
> This will lead to a dead lock:
> {code:java}
> MailQueue.MailQueueItem mailQueueItem1 = getMailQueue().deQueue();
> MailQueue.MailQueueItem mailQueueItem2 = getMailQueue().deQueue();
> mailQueueItem1.done(true);
> mailQueueItem2.done(true);
> {code}
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