Re: xPLDiag

[Mal Lansell <mal@xxxxxxxxxxx>]

The hubs keep timeout information anyway, so it would be simple to
include it in their response.

Mal

Paul Robinson wrote:

> 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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