[p2p-hackers] p2p query method and implementation

[Tiago Macambira]

On 9/21/05, Marco Ceci <marco.ceci at gmail.com> wrote:
> Hi, I need to inquiry every node of the network for the presence of
> information, obviusly make this in a full mesh scheme would be
> impossible. The problem is, imho, simpler that file retrieving becouse
> i only need to know if an information exist on nodes and count the
> reply. Do you know any existent (even efficient) java implementation
> to make this?

Perhaps a DHT is what you are looking for. There are java
implementation of various DHT algorithms. I would look for a chord
implementation if the datasets and nodes are fairly stable or for
kademlia if both nodes and datasets are very volatiles.

If the amount of information every node stores/returns to queries is
huge or depends on some calculation a hierarchical scheme would be
better...

Just my 2 cents...

Cheers.
Tiago Alves Macambira