Re: Search for disconnected channels

[Chris Slominski <cjs@jlab.org>]

I was thinking of a local solution for one process on one host, but I 
will consider your global solution. I'm not sure I want every client 
restarting their searches for disconnected channels.
  Thanks.

Ralph Lange wrote:
> Chris,
>
> You need a beacon anomaly that your clients can see, so they rebroadcast
> their unresolved names.
>
> Quick-and-dirty solution:
> The easiest way to create a beacon anomaly is to start up an IOC. Create
> an empty soft IOC on a machine on the clients' network (the softIoc
> executable from base is fine). Set up a cron job that starts the IOC,
> waits a second, then kills it.
> Whenever that cron job runs, all clients on the local network will try
> to resolve their channels.
>
> ~Ralph
>
>
> On 23.02.2012 14:18, Chris Slominski wrote:
>   
> > I want to be able to force my EPICS channel access client to begin a
> > new search for currently disconnected channels.We have small short
> > term pc104 iocs come and go and sometimes they are  not configured
> > correctly to broadcast when they have been booted up. A client
> > listening to the channels won't see a beacon anomaly and  begin the
> > channel search sequence.
> >
> > I can see a couple of ways to do this.
> >
> > - Send a network beacon to the CA Repeater.
> > - Issue a search for some non-existent channel.
> >
> > Please advise on what is a good way to do this. Example code or
> > references to EPICS source code are very welcome, as I am neither
> > familiar with EPICS base software, nor am I an experienced network
> > programmer. My client software uses EPICS 3.13.10.
> >
> >       Chris
> >
> >
> >