Thanks for your reply.
1. As I know, acknowledgement only ensure the message has been sent to
server successfully, but not to each subscribed consumer. Am I right?
2. To each client, it has a unique client-id. I don't know if it can
recognize the disconnected one when it logs on again. I will try this.
Neverthless if that happens, things are not easy.

On the other hand, it seems I am not the only one meeting these issue.
To most Rich applications, they have to face the data synchronization
issue.

Thanks,
Felix


On Jul 13, 7:32 pm, Devaraj <nsdeva...@gmail.com> wrote:
> Hi Felix,
>   Producer, consumer are just a messaging channel like chat,
> 1. You can add acknowledgement to find whether the message was
> properly delivered.
> 2. In case of message not delivered, push it to an RSS feed (again DB
> is required), and mark the entry as read after it is listened.
>
> Regards,
> Devaraj
>
> On Jul 13, 1:52 pm, Felix <yancao...@gmail.com> wrote:
>
>
>
> > Hi all,
>
> > As a frontend solution, Flex is really powerful and fascinate. On the
> > other hand, it inevitiably needs to exchange data. And I am trying to
> > find a good way to build a stable and reliable application.
>
> > Here's the workaround. On server side, blazeDS or LCDS is involved and
> > on frontend component Consumer and Producer are used to interact. A
> > group of users cooperates on the whole processing. Everybody will send
> > an update once he finished current job.
>
> > I don't want to do business with database because creating DB tables,
> > updating entries and synchronizing contents involve a lot of work.
> > BlazeDS is my current option, but online-help doesn't explain what
> > will happen if consumer disconnects temporarily. If some messages are
> > missed, the whole process will go into mess.
>
> > Simply speaking, I hope below issues can be solved:
> > 1) how to ensure messages are delivered to subscribed consumers if
> > they are temporarily disconnected?
> > 2) how to recover work if consumers are thoroughly disconnect?
>
> > Thanks a lot,
> > Felix
>
> > Thanks and regards,
>
> > Felix- Hide quoted text -
>
> - Show quoted text -

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