[AG-TECH] ag2.2: pig vs. node proper

Joshua M. Brown jmb10 at uark.edu
Wed Jun 16 10:54:38 CDT 2004


On Wed, 16 Jun 2004, Ivan R. Judson wrote:

> In a very broad sense you're right. The details are like this:
>
> - each machine that is part of a node has a Service Manager (this starts and
> stops individual services, e.g. VideoService)
> - each node (group of one or more machines) has a Node Service, this
> provides a single point of communication for the entire node.
> - The venue client is the user software, and when run with --personalNode,
> it starts a Node Service and Service Manager locally.
>
> Is that enough detail or are you looking for more?

Precisely, thank you, sir! i had the feeling they worked together similar
to that, but wanted to make sure before diving into setting up our big
node later (i wasn't in on setting it up under AG 1.x; still chuggin
along great though.)

i do have to say that i really like (and appreciate) the
flexibility, machine-number independent and OS-agnostic nature of AG
2.x; that's very nice :)

Again, thank you.

Josh

>
> --Ivan
>
> > -----Original Message-----
> > From: owner-ag-tech at mcs.anl.gov
> > [mailto:owner-ag-tech at mcs.anl.gov] On Behalf Of Joshua M. Brown
> > Sent: Wednesday, June 16, 2004 9:39 AM
> > To: Osland, CD (Chris)
> > Cc: ag-tech
> > Subject: RE: [AG-TECH] ag2.2: pig vs. node proper
> >
> > While i most certainly do appreciate the answer, it was not
> > quite what i was after. i am aware that AG can be spread
> > across multiple machines (and that physical machine
> > configurations don't matter so much as long as all AG
> > software components are running somewhere and can find each other).
> >
> > What i am after is a system level break-out of the software
> > components:
> > which python script is doing what, specifically in the
> > multi-machine configurations.
> >
> > Thank you.
> >
> > Joshua M. Brown
> > CSCE Senior
> > University of Arkansas
> > Desktop Unix Support Team
> > Computing Services, UofA
> >
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> >
> >
> > On Wed, 16 Jun 2004, Osland, CD (Chris)  wrote:
> >
> > > I'm replying to this before reading all subsequent mail,
> > but can't see
> > > any replies if the Subject: lines are consistent.
> > >
> > > To the very best of my knowledge, the 'room node' scenario does not
> > > mandate how many computers you use - different people have used
> > > 4 (the fourth being the control one for the echo
> > canceller), 3 (as you
> > > noted), 2 (possibly display in one, everything else in the
> > > other) and 1 (all in the one box).  We have room nodes in both 3
> > > computer and 1 computer systems.
> > >
> > > Cheers
> > >
> > > Chris
> > >
> > > ____________________________________________________________________
> > > Chris Osland
> > Office tel: +44
> > > (0) 1235 446565
> > > Digital Media and Access Grid
> > Medialab tel: +44 (0)
> > > 1235 446459
> > > BIT Department                                     Access
> > Grid room tel: +44
> > > (0) 1235 445666
> > > e-mail:   C.D.Osland at rl.ac.uk
> >         Fax: +44
> > > (0) 1235 445597
> > > CLRC Rutherford Appleton Laboratory (Bldg. R18) Chilton,
> > DIDCOT, Oxon
> > > OX11 0QX, UK [The contents of this email are confidential
> > and are for
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> > >
> > >
> > >
> > >
> > > > -----Original Message-----
> > > > From: owner-ag-tech at mcs.anl.gov
> > [mailto:owner-ag-tech at mcs.anl.gov]On
> > > > Behalf Of Joshua M. Brown
> > > > Sent: 15 June 2004 15:40
> > > > To: ag-tech
> > > > Subject: [AG-TECH] ag2.2: pig vs. node proper
> > > >
> > > >
> > > > Okay folks,
> > > >
> > > > i'm just wanting to solidify some things in my head real
> > quick. With
> > > > AG 2.2, if you start the VenueClient.py with the
> > --personalNode and
> > > > -d flags, you get, well a PIG (complete with its own
> > video services
> > > > (consumer/producer) and its own audio services)) correct? Ah, the
> > > > services running after being setup, of course.
> > > >
> > > > Okay, now on a node proper (room node, i've heard. We're
> > running an
> > > > old ag1.x room node now), you would have the
> > AudioService.py running
> > > > on one machine, VideoService.py running on another (both linux of
> > > > whatever flavor you're inclined to use) and the final piece,
> > > > VenueClient.py on the "display machine". Is this a correct
> > > > over-simplification?
> > > > Again, i'm just
> > > > making sure i get a solid mental picture of system layout
> > wrt to the
> > > > scripts.
> > > >
> > > > i am aware of the network and port issues that are
> > related with both
> > > > types of node; just clarifying the diffs.
> > > >
> > > > Have i gotten things correctly? Please let me know if this is not
> > > > the case, we'll be upgrading soon.
> > > >
> > > > Thanks folks! :)
> > > >
> > > > Joshua M. Brown
> > > > CSCE Senior
> > > > University of Arkansas
> > > > Desktop Unix Support Team
> > > > Computing Services, UofA
> > > >
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> > >
> > >
> >
> >
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