Yes, we can expose a GMS API that will allow for a Uber entity for
viewing a collection of groups. Jxta has traditionally had the advantage
of being able to expose a compositional pattern of peergroups whereby a
WorldPeerGroup composes of one or more infrastructure netpeergroups.
I am hoping this can be done through Jxta. I am not sure if Mo is
suggesting that GMS have a separate process of discovering all groups in
a subnet. That would be a lot of design and development work in the GMS
layer.
Emanuele wrote:
> My application is addressed to highly dynamic and fully decentralized
> environments which impose a decentralized discovery mechanism.
> Moreover I think such a feature could be essential to enable
> self-organizing capabilities in these settings.
>
> Emanuele
>
> Mohamed Abdelaziz wrote:
>>
>>
>> I think the simplest way is to expose a GMS API which allows for
>> discovery of active clusters, which should be easy in the case of
>> local sub-nets. It's a little tricky when crossing the sub-net
>> boundries, which can be overcome by distributed queries cross
>> networks, thus enabling such in geographically distributed clusters.
>> Do you see a need for such feature in your application?
>>
>> Mohamed
>>
>> On Feb 15, 2008, at 5:07 PM, Emanuele <mane81_at_email.it> wrote:
>>
>>> Yes, something like that.
>>> I'll try to be more precise with an example: suppose there is a set
>>> of cluster in the system and clusters can be added and removed at
>>> runtime. Entities belonging to one cluster can move to another
>>> cluster according to some policies or rules. To support this sort of
>>> dynamism a way to find current active cluster is necessary.
>>>
>>> I think that I have to go deeper into JXTA api, but I would
>>> appreciate any useful hints because I'm really new to Jxta :)
>>>
>>> Emanuele
>>>
>>> Shreedhar Ganapathy wrote:
>>>> Does Jxta expose any api to query the world peer group for a
>>>> specific infrastructure netpeergroup by name ?
>>>>
>>>> I think something of that kind is what Emanuele is asking for.
>>>>
>>>>
>>>>
>>>> Mohamed Abdelaziz wrote:
>>>>> Provided the cluster mcast port is known, discovery in world group
>>>>> could be employed to discover cluster instances, a functionality
>>>>> which could be exposed in shoal.
>>>>>
>>>>> Mohamed
>>>>>
>>>>> On Feb 15, 2008, at 2:14 PM, Shreedhar Ganapathy
>>>>> <Shreedhar.Ganapathy_at_Sun.COM> wrote:
>>>>>
>>>>>> I am sure Jxta has some way to determine that. We probably dont
>>>>>> know of it and hence Shoal Apis dont expose it. Would wait for
>>>>>> Mohamed's response on this.
>>>>>>
>>>>>> Emanuele wrote:
>>>>>>> Hi.
>>>>>>> If I don't know any group names, there is a way to find the
>>>>>>> clusters currently instantiated in my network?
>>>>>>> Thanks
>>>>>>>
>>>>>>> Emanuele
>>>>>>>
>>>>>>>
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