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https://issues.apache.org/jira/browse/CURATOR-254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14712280#comment-14712280
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Cameron McKenzie commented on CURATOR-254:
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Perhaps this is an actual issue. There is a maximum bound of 10 items for the
queue, but it would seem that there's nothing providing synchronization between
multiple producers for the same queue. So, there is a window between the check
for the number of items on the queue and the insertion of data into the queue
where it's possible for another producer to have come along and create other
items.
Locking is provided in the DistributedQueue class, but only to stop multiple
consumers reading the same message.
So, should the distributed queue be locking when creating messages? Obviously
there's a performance hit in doing this, but without it, there's no way to
guarantee that the maximum queue size will actually be respected.
> TestBoundedDistributedQueue:testMulti fails intermittently
> ----------------------------------------------------------
>
> Key: CURATOR-254
> URL: https://issues.apache.org/jira/browse/CURATOR-254
> Project: Apache Curator
> Issue Type: Bug
> Affects Versions: 2.8.0
> Reporter: Cameron McKenzie
> Assignee: Cameron McKenzie
> Priority: Blocker
> Attachments:
> TEST-org.apache.curator.framework.recipes.queue.TestBoundedDistributedQueue.xml
>
>
> The TestBoundedDistributedQueue:testMulti fails intermittently. See attached
> test report.
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