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From "Kim van der Riet (JIRA)" <qpid-...@incubator.apache.org>
Subject [jira] Resolved: (QPID-2384) Cluster recovers duplicate messages when using async store and --no-data-dir and --store-dir together
Date Tue, 02 Feb 2010 16:00:22 GMT

     [ https://issues.apache.org/jira/browse/QPID-2384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Kim van der Riet resolved QPID-2384.

    Resolution: Fixed

This is a logic flaw in the cluster store status. When --no-data-dir is specified, the logic
which discards the store for the second and subsequent nodes fails to run. In addition, the
cluster has nowhere to write its store status information which is normally written into the
data directory.

Considering that the store-dir used by the async store is unique to that store and is not
available on stores generally, it makes sense therefore to make the use of --data-dir mandatory
when the cluster is loaded together with any non-null store. This fix now will stop the broker
with an error message if --no-data-dir is used in the presence of any non-null store.

Fixed in r.905680

> Cluster recovers duplicate messages when using async store and --no-data-dir and --store-dir
> -----------------------------------------------------------------------------------------------------
>                 Key: QPID-2384
>                 URL: https://issues.apache.org/jira/browse/QPID-2384
>             Project: Qpid
>          Issue Type: Bug
>          Components: C++ Clustering
>            Reporter: Kim van der Riet
>            Assignee: Kim van der Riet
> (copied from https://bugzilla.redhat.com/show_bug.cgi?id=560102)
> When using a persistent store in cluster mode, if you say --no-data-dir, the wrong thing
happens at init time, and the broker comes up in a confused state.
> Version-Release number of selected component (if applicable): trunk
> How reproducible: Always
> Steps to Reproduce:
> 1.  Start two brokers with a stores, specify --store-dir, and --no-data-dir
> 2.  Create some objects
> 3.  Bounce and restart a broker
> Actual results: Broker recovers objects from the store, when it shouldn't
> Expected results: Should get statea from the peer.

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