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From Jakub Scholz <ja...@scholz.cz>
Subject Re: Status monitoring
Date Sat, 13 Jan 2018 16:23:12 GMT
The LVQ queue is able to persist these messages to disk like any other
queue. So they can survive restart.

Jakub

On Sat, Jan 13, 2018 at 4:55 PM, Daniel Gavrila <d.gavrila@icloud.com>
wrote:

> Hello Andreas,
>
> Thanks for the suggestion.From what I read from documentation, indeed a
> last value queue should cover a signifiant part of use case
> scenario.Remains the question if the values from a LVQ could be make
> persistent, so that will be recovered after a broker restart?
>
> Best regards,
> Daniel
>
>
> > On 13.01.2018, at 12:55, Andreas Welchlin <andreas@welchlin.de> wrote:
> >
> > Hello Daniel,
> >
> > this should work using a last value queue.
> >
> > Kind Regards,
> > Andreas
> >
> > Am 13. Januar 2018 12:19:57 MEZ schrieb Daniel Gavrila <
> d.gavrila@icloud.com>:
> >>
> >>
> >> Hello,
> >>
> >> My environment is:
> >>      C++ Proton v. 0.19
> >>      C++ Broker v.1.37 configured with AMQP 1.0
> >>
> >> I have to implement the following use case scenario. The network
> contains N publishers(sensors) . When one sensor starts it publish to the
> queue OverviewStatus one message that contains some data: sensor
> name,type,internal status etc. One GUI program has to display the
> information from the queue OverviewStatus. Everytime the sensor changes its
> internal status he needs to update the status in the queue.Before the
> shutdown , the sensor has to remove its entry from the queue.
> >> If the sensor exits anormaly the event should be catched and the sensor
> status modified accordingly. By restarting the broker, all the sensors
> status information should be recovered.
> >>
> >> Is it possibly to implement such use case in the above mentioned
> environment? Any suggestions are welcomed !
> >>
> >> Many thanks,
> >> Daniel
> >>
> >>
> >>
>

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