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From "Robert Godfrey" <rob.j.godf...@gmail.com>
Subject Re: Java M2 - status of three outstanding Jiras
Date Mon, 17 Sep 2007 11:28:01 GMT
Martin - please don't tell me yuou have Qpid running on your phone :-)

PS You're supposed to be on holiday

-- Rob

On 17/09/2007, Martin Ritchie <ritchiem@apache.org> wrote:
>
> Rafi. do you have a test case that can reproduce the problem in 602?
> I've been trying to do so by populating the queue and then connect a
> client wils sending more messages. So far it always gets the messages
> in the right order. I haven't had much time to get a failing test so i
> can test my solution so he you have such a test that would really
> help.
>
> Martin,
> The north end of Skye. Near the mobile mast.
>
> On 15/09/2007, Rafael Schloming <rafaels@redhat.com> wrote:
> > Robert Greig wrote:
> > > On 14/09/2007, Rafael Schloming <rafaels@redhat.com> wrote:
> > >
> > >> This is a tricky issue. There are actually two bugs here. The correct
> > >> fix for QPID-572 (the original patch submitted to the JIRA) actually
> > >> causes another race condition to be more likely. I've described the
> > >> other race condition in detail in QPID-601.
> > >
> > > Ah ok. It is useful to split this into the real issues.
> > >
> > >> So basically if we want to release M2 in a timely manner we need to
> > >> choose between selectors with correct message ordering and a higher
> > >> chance of messages being stranded, or selectors with incorrect
> message
> > >> ordering and a lower chance of messages being stranded.
> > >
> > > OK my own view is that stranded messages are worse than out of order
> > > messages therefore I would say we go for selectors with incorrect
> > > message ordering and a lower chance of messages being stranded.
> > >
> > > But we should note in the release notes that when using selectors
> > > ordering guarantees are "relaxed".
> > >
> > > What do others think?
> >
> > I agree that's the best option if there is no simple fix for QPID-601.
> >
> > --Rafael
> >
> >
>
>
> --
> Martin Ritchie
>

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