(Illustration by Gaich Muramatsu)
>>>>> "Lionix" == Lionix <lio_at_absium.com> writes: Lionix> And [Jan] always take the time one day to read the ml and Lionix> write some responses. That's right, he'll jump in soon if there are mistakes or unanswered questions. You shouldn't write him privately unless it's something you know is uninteresting to the list (like megabytes of logs). Lionix> Disconnected mode is a wonderful thing for loptop file Lionix> management. Of course. But Joerg seems to have a specific application in mind, with fixed connections for workstations. Maybe he will be very happy to use those features later, but right now he wants high-availability replicated distributed file service. Lionix> I get some troubles... Morevover I've observed that venus Lionix> generaly writedisconnect from most volumes when one volume Lionix> is heavy touched and turn into disconected state ... I would think you could improve availability by having several servers, each serving only a fraction of the volumes. Also, by reducing bandwidth needed on weak connections (eg, by using rsync protocol for transport) probably this could be improved. That would be a pretty big project though, I suppose. Lionix> If I remember correctly venus fetch files to the fastest Lionix> server to response his request. Lionix> And then servers replicate to themself data.... If write-connected, the client then pushes mutations to all servers IIRC. However, I would say read the theory documents on www.coda.cs.cmu.edu again. They explain this in detail, and also what happens in weakly-connected cases (eg, a subset of servers down or network partitioned). Lionix> I think a risk arize if venus crash during fetching file Lionix> to server in a rvm-less config.... All data in memory of Lionix> venus machine would be lost ! Of course. -- Institute of Policy and Planning Sciences http://turnbull.sk.tsukuba.ac.jp University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN Ask not how you can "do" free software business; ask what your business can "do for" free software.Received on 2003-12-04 21:22:13