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https://issues.apache.org/jira/browse/CXF-2002?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12699637#action_12699637
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Sergey Beryozkin commented on CXF-2002:
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Hi Ron
> What would you think about setting a bogus selector on the
> DefaultMessageListenerContainer to suspend message consumption? That appears
> to be the technique used to implement JMS-based throttling in the new SMX4
> Cluster Endpoint
Sounds like a neat idea. Suppose we just set some bogus selector like
"org.apache.cxf.jms.continuations.too-many" so it will keep the incoming
messages in the queue till the original selector is restored.
I was also thinking about simply blocking the request threads for the time
specified in suspend() - it would keep the JMS thread blocked and thus all the
existing JMS request threads will eventually be locked till a number of
continuations decreases - but I'm not 100% sure it would actually prevent the
JMS runtime from creating new JMS threads which would continue pump new
messages into the memory.
What do you think about this second idea ?
cheers, Sergey
> Server async jms transport needs dynamic mechanism to throttle message
> consumption
> ----------------------------------------------------------------------------------
>
> Key: CXF-2002
> URL: https://issues.apache.org/jira/browse/CXF-2002
> Project: CXF
> Issue Type: Improvement
> Components: Transports
> Affects Versions: 2.0.9, 2.1.3, 2.0.10
> Reporter: Ron Gavlin
> Assignee: Sergey Beryozkin
> Fix For: 2.2.1
>
>
> Currently, the server-side async jms transport has no mechanism to throttle
> consumption of incoming messages. This becomes problematic in scenarios where
> a large backlog of messages exists on the input queue. In this case, it is
> likely that the cxf server will overload its internal work item queues
> resulting in problems. A dynamic throttling mechanism on the async jms server
> is required to avoid this problem.
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