Re: xPLDiag

["Paul Robinson" <ukcueman@xxxxxxxxxxx>]

Perhaps the hub reply should indicate how long it has been since it had a
hbeat from each
client - then the collector can display the app as potentially dead, if
appropriate.

It may be easier to obtain icons for apps than for xpl itself - each app
author will just
create their own without any need to confer with the rest of the group.
Decision by
committee is sloooooow.

----- Original Message -----
From: "Mal Lansell" <mal@xxxxxxx>
To: <ukha_xpl@xxxxxxx>
Sent: Thursday, September 22, 2005 11:25 PM
Subject: Re: [ukha_xpl] xPLDiag


> I did originally think of just having special schema for getting the
hub
> client list, but I decided to go for the more general about.basic
> because there is so much more useful information that the apps can
> report than currently gets put into the heartbeats.  Once I'd decided
> that, the client list seemed to be a duplication of information
already
> available in the about.basic responses.
>
> However, as you point out, where there are apps that do not respond,
the
> client list would give a basic indication of the existance of an app.
> The schema could easily be extended to include a number of
> client="vendor-device.instance, ip, port" entries.  The only
downside I
> can see is that hubs are not always able to drop an app that has
stopped
> - they don't all send hbeat.end before quitting. This would mean the
> client list might contain apps that are no longer functioning.
>
> As for building a map - that's the plan :-)  It would be even nicer if
> apps had icons that could be displayed, although we seem to have
enough
> trouble coming up with the one for xPL as a whole!
>
> Mal
>
>
> Paul Robinson wrote:
>
> > What if the hubs reply includes whatever info it has about its
> > clients? So even if the
> > apps are not aware of this type of message, you can still get
some
> > information about every
> > connected app.
> >
> > I'm not familiar enough with the details of this to know whether
the
> > requestor would be
> > able to work out what each of the hubs ip addresses are and which
hubs
> > each app was
> > talking to. Would be good to build a map showing the layout of
the xpl
> > network from the
> > replies.
> >
> > Paul






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