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https://issues.apache.org/jira/browse/QPID-4021?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13674447#comment-13674447
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Andrew Stitcher commented on QPID-4021:
---------------------------------------

With the fix for QPID-4854 the trunk code (for 0.23) now will time out the 
initial protocol negotiation until the connection is fully authenticated and 
heartbeats (if set) are negotiated.
                
> Badly behaved clients can still clog up the broker
> --------------------------------------------------
>
>                 Key: QPID-4021
>                 URL: https://issues.apache.org/jira/browse/QPID-4021
>             Project: Qpid
>          Issue Type: Bug
>          Components: C++ Broker
>    Affects Versions: 0.17
>            Reporter: Andrew Stitcher
>
> The recent code that timeouts out new connections that have not negotiated 
> the protocol within (a default) 2 seconds still leaves a gap where badly 
> behaved applications can tie up the broker.
> The timeout should really be till either heartbeats are activated in which 
> case they will take over the role of timing out idle connections. Or until 
> the connection is authenticated in which case the policy on admitting users 
> should take care of limiting the connections.

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