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https://issues.apache.org/jira/browse/QPID-7763?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15995132#comment-15995132
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ASF subversion and git services commented on QPID-7763:
-------------------------------------------------------
Commit ed320c2242d4584bc6b2eaf253c91856f546e318 in qpid-broker-j's branch
refs/heads/6.1.x from [~lorenz.quack]
[ https://git-wip-us.apache.org/repos/asf?p=qpid-broker-j.git;h=ed320c2 ]
QPID-7763: [Java Broker] Avoid allocating large non-pooled direct byte buffers
in WebSocketProvider, MemoryMessageStore, and message inflation
> [Java Broker] Flow to disk if allocated direct memory exceeds broker wide
> broker.flowToDiskThreshold
> ----------------------------------------------------------------------------------------------------
>
> Key: QPID-7763
> URL: https://issues.apache.org/jira/browse/QPID-7763
> Project: Qpid
> Issue Type: Bug
> Components: Java Broker
> Reporter: Lorenz Quack
>
> Currently the broker.flowToDiskThreshold is compared against the size used by
> messages on queues.
> However, the intent was to have a mechanism for preventing the broker going
> out of direct memory. For this it is much more interesting to observe how
> much direct memory the QpidByteBuffers use. The two numbers can easily differ
> since the QBB can be sparsely populated.
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