Re: Advertisement Discovery Performance

Mike,

Thanks for your response.  I do perform self promotions within the group
after a certain amount of time waiting for a rdv to respond.  The way it
seems to be working right now, I usually end up with anywhere from 2-4 rdv
peers through self promotion.

Geoff

Quoting Mike Cumings <[email protected]>:

> Hi Geoff,
> 
> How are you configuring your JXTA net with regard to rendezvous?
> Does your application have the peers auto-promote themselves
> to rendezvous after some period of time, or do you have separate
> "infrstructure" peers that your grid peers are using?
> 
> The reason why this comes into play is that discovery takes place
> via rdv peers.  The default time for an "edge" peer to promote
> itself to a rdv peer is 5 minutes, matching your application observations
> quite closely.  See RendezVousService.setAutoStart() for a good
> starting point.
> 
> HTHs,
> 
> Mike
> 
> On 9/9/05, GEOFFREY DIX <[email protected]> wrote:
> > Hello,
> > 
> > I am currently trying to run performance tests on an application I have
> > written using the Java JXTA implementation (v 2.3.x).  I begin by starting
> > up 12 peers on different nodes of a linux cluster.  Each peer creates and
> > advertises a bidi pipe and all peers are members of the same group.  I
> > discover the pipe advertisements by name (all advertisement names are
> built
> > using <PeerGroupName>:<PeerName>) by making a call to
> getRemoteAdvertisements
> > using 15 as the number of advertisements I would like to retrieve.  I wait
> > about 10 seconds before sending the next getRemoteAdvertisements request
> (I
> > have tried many different combinations - 1sec, 30secs, 60 secs) to give my
> > discovery listener time to parse the advertisements and attempt to connect
> > to the pipes.  Currently it takes about 5-10 minutes for all the peers to
> > discover and connect to each other peer (though sometimes the discovery
> does
> > not succeed for all peers).  My problem (finally) is that since I am still
> > in the process of making changes to my software baseline I would like to
> > find a way to improve the speed at which peers are discovered and wonder
> > if there is a more efficient method for discovery that I am not aware of?
> > 
> > Thanks in advance for any help/suggestions you can offer.
> > 
> > Geoff
> > 
> > 
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> 
> 
> -- 
> Mike Cumings
> 
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