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From "Kim van der Riet (JIRA)" <qpid-...@incubator.apache.org>
Subject [jira] Resolved: (QPID-2470) Broker does not honour flow-to-disk policy on recovery
Date Tue, 13 Apr 2010 17:32:52 GMT

     [ https://issues.apache.org/jira/browse/QPID-2470?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kim van der Riet resolved QPID-2470.
------------------------------------

    Resolution: Fixed

Fixed in r.933711 and async store r.3905 (which adds new flow-to-disk tests).

> Broker does not honour flow-to-disk policy on recovery
> ------------------------------------------------------
>
>                 Key: QPID-2470
>                 URL: https://issues.apache.org/jira/browse/QPID-2470
>             Project: Qpid
>          Issue Type: Bug
>          Components: C++ Broker
>    Affects Versions: 0.7
>            Reporter: Kim van der Riet
>            Assignee: Kim van der Riet
>
> The broker implements a flow-to-disk strategy as a means of retaining message content
when a queue policy is exceeded. In this strategy, message content (whether persistent or
transient) is written to the store, then released from memory. Before the message may be consumed,
the message content must be retrieved from the store.
> If a broker is stopped while there is flow-to-disk content containing persistent messages,
then the broker fails to honour the policy when that content is restored. The policy itself
is recovered, however, all message content is restored, even if it violates that policy. In
cases where the flow-to-disk content is greater than the available memory, the broker may
become unresponsive or fail in its recovery owing to memory starvation.

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