*Load management* is the process of balancing the supply of store on the network and tunning my proposal the main idea could be to apply a QUID PRO QUO mechanism to new nodes until they have a reputation in the system (i.e. becomes "old nodes").
A classic problem in distributed system is the ?tragedy of the commons? for example during a period of high de- mand. Here, a growing number of new users simultaneously request storage resources. One simple strategy based on reciprocity that has proven to be remarkably robust and effective against a wide range of competing strategies is TIT FOR TAT. And to apply this strategy to new nodes is a control that can restrict overloading and DoS attacks. The problem with Freenet performance right now is not altruism with regards > to > store space. 99% of users use opennet, and on opennet, fast nodes tend to > get > connected to fast nodes, hence there is a clear incentive for having a big > store etc; if a node is not good at answering requests it will tend to get > diverted to slower peers. One of the biggest right now is probably churn - > lots of people try Freenet, figure out that it's slow and then go away, and > this in itself slows down the network and breaks storage, but also the fact > that many nodes run very much less than 24x7 and this is a problem for > storage. > > Trading storage of individual blocks is not likely to help matters because > we > want blocks to move to wherever is closest to their locations, modulo > demand. > > Having said that, there may be useful quid-pro-quo systems in other areas > e.g. > load management. Perhaps a new node should only have limited access until > it > proves itself? This might help to prevent flooding and DoS attacks, but it > would make new nodes even slower than they already are ... > > > On Wednesday 25 March 2009 10:13:30 David Cabanillas wrote: > > Name David Cabanillas > > Email davidcabanillas75 at gmail.com > > Project Title FreeSwap > > Benefits to the Freenet Community The proposal wants to assure that the > > nodes offer free space without either presence of altruistic participants > > nor general norms. > > Expected Results > > o Improve the data storage process assuring that the nodes > offer > > free space to store information. > > The idea is not rely on altruistic nodes. My approach is to > use > > a bartering mechanism at the moment to > > include new data in the system. When a node wants to add a > > content X in the system, it should accept store a > > content from the system. Apart from the advantage that apply > a > > "quid pro quo" policy (i.e bartering) this approach avoid > > a massive stored content from malicious nodes. > > > > Project Schedule - How long will the project take? When can you begin > work? > > Do you have any other commitment for the summer? > > > > I expect to work during 3-4 months. The idea is to start the project on > May > > and to finish on September. A short > > description about the scheduling: > > o In May review the architecture in special interest in how the > > data is added to the system > > o From Jun to August deploy the system > > o In September to test and review the performance of the system > > > > Right now, I'm in a period of time where I have not many tasks to do. > > This is good because I can read books and I may make many other things > but > > the bad point is that > > the incoming funds have fallen :( > > > > Bio - Who are you? What makes you the best person to work on this > project? > > > > I'm from Barcelona (Spain) during the last years have been doing my PhD. > in > > artificial > > intelligence. I have experience in Java and some other languages. In the > > future I want > > to work as teacher in some University/school. When I have free-time I put > on > > my trainers > > and I run during kilometers around my city. To me run is a way to escape. > > > > With respect the project I believe that this project is a good > opportunity > > to me in many aspects: > > To work in a project very related with my academical and research work is > > good for my curriculum and > > it could be a personal experience. But the most important point is that I > > want to show me that I'm > > capable to work in an exciting project > > > > > > -- > > bye > > --david > > > > > -- bye --david -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://emu.freenetproject.org/pipermail/devl/attachments/20090327/990aaf51/attachment.html>
