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https://issues.apache.org/jira/browse/QPID-4789?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Keith Wall resolved QPID-4789.
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Resolution: Won't Fix
Agreed in a product backlog review - won’t fix.
> Failover at the point FlowControllingBlockingQueue is full can lead to
> unbounded growth (NO_ACK sessions)
> ---------------------------------------------------------------------------------------------------------
>
> Key: QPID-4789
> URL: https://issues.apache.org/jira/browse/QPID-4789
> Project: Qpid
> Issue Type: Bug
> Components: Java Client
> Affects Versions: 0.6, 0.8, 0.10, 0.12, 0.14, 0.16, 0.18, 0.20, 0.22, 0.23
> Reporter: Keith Wall
> Assignee: Keith Wall
> Priority: Minor
> Attachments: qpid4789_reproduction.patch
>
>
> If using AMQSession.NO_ACKNOWLEDGE, there is at least one sequence of events
> that can lead to the FlowControllingBlockingQueue growing without bounds.
> For the situation to occur, the FlowControllingBlockingQueue needs to full at
> the point failover occurs. After the failover, if new message arrives the
> FlowControllingBlockingQueue will go beyond its intended limit. There is
> nothing preventing FlowControllingBlockingQueue continuing to grow and
> exhausting all available client memory.
> This problem does not affect the standard JMS acknowledgement modes, nor
> AMQSession.PRE_ACKNOWLEDGE
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