total ordering is only an issue when there are multiple consumers. For a single consumer and for exclusive consumers, where there can only be a single consumer, ordering 'is' guaranteed.
2009/8/6 jerdavis <jerda...@speakeasy.net> > > Thanks for your answer Rob, this is exactly what I was looking for. :) > Total Ordering seems like such a fundamental thing for a Persistent Queue. > I'm surprised there hasn't been a solid answer to this question. Is there a > standard way people get around this? > Would an Exclusive Consumer guarantee Total Order? > I would think that a new Exclusive consumer wouldn't be able to consume > messages until the crashed TCP connection/consumer finally closed and > released the outstanding messages. > > Regards, > -JD > > > > > > > rajdavies wrote: > > > > > > On 5 Aug 2009, at 23:13, jerdavis wrote: > > > >> > >> No takers? > >> -- > >> View this message in context: > >> > http://www.nabble.com/Total-Message-Order-of-Queues-%28not-topics%29-durring-edge-cases%28crashes%29-tp24705154p24837185.html > >> Sent from the ActiveMQ - User mailing list archive at Nabble.com. > >> > > > > > > Total ordering may be violated for consumer crashes with the default > > prefetch sizes - see > > http://activemq.apache.org/what-is-the-prefetch-limit-for.html > > to reduce this possibility to a single message - set a prefetch size > > = 0. > > > > cheers, > > > > Rob > > > > Rob Davies > > I work here: http://fusesource.com > > My Blog: http://rajdavies.blogspot.com/ > > I'm writing this: http://www.manning.com/snyder/ > > > > > > > > > > > > > > -- > View this message in context: > http://www.nabble.com/Total-Message-Order-of-Queues-%28not-topics%29-durring-edge-cases%28crashes%29-tp24705154p24855824.html > Sent from the ActiveMQ - User mailing list archive at Nabble.com. > > -- http://blog.garytully.com Open Source Integration http://fusesource.com
