Hi Sam, Distributing Clerezza in a distributed OSGi einvironment should be possible, but it would only bring significant benefit if, as you suggest, it would be aligned with query functionality.
A possibly distinct field to improve distributing computing over the network would be access as (m)graphs of remote sparql endpoint, the most difficult challenge I think would be to support caching. Yet another distributed facility might base on code based bundle permissions which is (at least somehow) supported in clerezza. So instead of downloading a graph of using a sparql endpoint one can upload a bundle that (with the rights of the uploading user) aggregates the data. Reto On Fri, Nov 4, 2011 at 2:07 PM, Sam Chance <sgcha...@gmail.com> wrote: > Reto, > > Sorry for taking so *long* to reply! > > I do think there is a good intersection between Semantic Web and > distributed OSGi. Two reasons that come to mind include scale and "cloud". > As you know OWL/RDFS reasoning/querying is an expensive function. When the > knowledgebase grows to any substantial size, performance becomes > unacceptable. Although scale has improved, it remains a challenge. As for > "cloud", I thought "SOA" was an overloaded term, but "cloud" is much worse! > Nevertheless, the way we design, build, deploy and maintain software > systems - I believe - will become increasingly modular and distributed. As > data is distributed in Hadoop, software modules will be similarly > distributed. I could be wrong! :-) > > So my "hypothesis" is that a distributed OSGi services "fabric" will align > with the "modular and distributed" "cloud" concept; and such a fabric can > parallelize OWL/RDFS reasoning/querying functions. > > I'm wondering if Clerezza can built in such a fashion. I'm sure it can, but > I also know it's easier said than done! In the short term, I think I'll > focus on learning and using Clerezza - as is. :-) > > Thoughts? > > Thank you! > Sam > > On Mon, Oct 3, 2011 at 11:18 AM, Reto Bachmann-Gmür > <m...@farewellutopia.com>wrote: > > > Hi Sam, > > > > Good you came across clerezza. > > > > You've probably see the original Clerezza proposal > > (http://wiki.apache.org/incubator/ClerezzaProposal) which gives you > > some of the history. The original code has been donated by Trialox > > which uses clerezza as the foundation for their CMS system, which is > > in use e.g. for http://www.pandaclub.ch/. By now most contributors are > > not associated to Trialox. Clerezza is not meant to be a CMS but a > > platform to make it easy to build web-applcation for the semantic and > > the social web. > > > > There is no official roadmap of the future development and different > > committers will set different priorities. From my point of view: > > > > - Release clerezza (Our first release attempt have failed and its time > > to try again) > > - Have an "app-store" on the website > > - Better integrate the documentation and tutorials > > - As a longer term vision we've discussed a versioning triple stores > > with a transaction oriented api where a transaction yields to a new > > version (see > > > http://mail-archives.apache.org/mod_mbox/incubator-clerezza-dev/201009.mbox/%3caanlktiknhwnesimukj+2t6bxzyx2nxpzcut2hbkzi...@mail.gmail.com%3E > > ) > > > > Do you think distributed OSGi could be integrated in Clerezza? Is > > there a connection between SemWeb and distributed OSGi? > > > > Cheers, > > Reto > > > > > > > > On Fri, Sep 30, 2011 at 2:36 AM, Sam Chance <sgcha...@gmail.com> wrote: > > > Hi, > > > > > > I recently (accidentally) discovered Clerezza. I've been involved in > > > Semantic Web technologies and the "community" since about 2001. And > oddly > > > enough, I've been almost as enamored with OSGi! In fact, I've zealously > > > promoted the Semantic Web and distributed OSGi. > > > > > > Suffice it to say, when I found Clerezza I was pleasantly surprised. > > > However, like a things worthwhile, I have a lot to learn. Is there > > someone > > > on this list who can provide some history and background for Clerezza? > > Who > > > is behind it? What is the roadmap? > > > > > > Any insight and details are appreciated! > > > > > > Thank you! > > > Sam > > > > > > > > > -- > Sam Chance > 443-694-5293 (m) >
