I have the mulgara 3.0.0 instance running fine, using the "-s fedora" to give it the fedora servername. Fedora is set to run remote, and set the host param to localhost, and the servername to 'fedora'.
Both run fine, going to http://localhost:8080/fedora/risearch redirects me to the webui nicely, and this is functioning fine from what I can tell (I can create, drop and add rdf graphs and triples) However, I am missing the bit of information about how fedora syncs to mulgara - what is the Graph URI? I have tried creating <rmi://localhost/fedora#rdfs and #ri> in case they are the intended graph uris, but this doesn't work. The fedora-rebuild.sh returns the following: "NOTE: You must now manually re-initialize (clear) the existing triplestore. The RI rebuilder cannot yet automatically perform this step for this type of triplestore. Press enter when finished. Initializing triplestore interface... Error: Failed to initialize new Resource Index fedora.server.errors.ResourceIndexException: Failed to initialize new Resource Index at fedora.server.resourceIndex.ResourceIndexRebuilder.start(ResourceIndexRebuilder.java:149) at fedora.server.utilities.rebuild.Rebuild.<init>(Rebuild.java:81) at fedora.server.utilities.rebuild.Rebuild.main(Rebuild.java:424) Caused by: org.trippi.TrippiException: Failed to create Client JRDF Graph. at org.trippi.impl.mulgara.MulgaraSession.getElementFactory(MulgaraSession.java:180) at org.trippi.impl.mulgara.MulgaraConnector.init(MulgaraConnector.java:165) at org.trippi.TriplestoreConnector.init(TriplestoreConnector.java:24) at fedora.server.resourceIndex.ResourceIndexRebuilder.start(ResourceIndexRebuilder.java:142) ... 2 more Caused by: org.jrdf.graph.GraphException: Failed to create Client JRDF Graph. at org.mulgara.server.driver.JRDFGraphFactory.newClientGraph(JRDFGraphFactory.java:186) at org.trippi.impl.mulgara.MulgaraSession.getElementFactory(MulgaraSession.java:178) ... 5 more Caused by: java.lang.ClassNotFoundException: org/mulgara/client/jrdf/RemoteGraphProxy at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:164) at org.mulgara.server.driver.JRDFGraphFactory.getClassTypes(JRDFGraphFactory.java:266) at org.mulgara.server.driver.JRDFGraphFactory.newClientGraph(JRDFGraphFactory.java:179) ... 6 more Is there a step I am missing? Ben On Wed, 2008-10-29 at 13:48 -0400, Greg Jansen wrote: > Hey, we've got Mulgara running in remote mode as described below, using > Mulgara's default #server1 servername. The fedora-rebuild scripts > require Mulgara to be running, but not Fedora. So what I did was create > two /etc/init.d scripts, one to start both and one to just start Mulgara > alone. > > I do think the architecture could be further decoupled by allowing > fedora to run while also reindexing the resource index. However, you've > got to block or track all object changes while that the index process > completes, something that seems more likely in the next release, which > promises JTA support. Edwin, do fedora developers have any plans or > thoughts about that? > > thanks, > Greg Jansen > Carolina Digital Repository > UNC Chapel Hill > > Edwin Shin wrote: > > (moving to fedora users) > > > > On 10/29/2008 11:15 PM, Benjamin O'Steen is rumored to have said: > > <snip/> > > > > > >> Some documentation on the limits/breadth of support would be most > >> appreciated, as the statement 'SPARQL support' might pose problems for > >> managing user expectations. > >> > > > > I'm not positive what the latest state of SPARQL support in Mulgara > > is--it's either complete or just about. Mid-summer (before Mulgara > > 2.0.0), about 95% of SELECT queries were supported, where the main thing > > missing was ordering by expression instead of by a variable. Also at > > that time, ASK, DESCRIBE and CONSTRUCT were not supported, but these are > > now supported (or at least I see the code for it now). > > > > > >> (So far, I have got the in-vm mulgara to understand a SELECT query, but > >> it fails to reply with any results. A person with only SPARQL experience > >> might be similarly stuck.) > >> > > > > You'll still need to include a FROM clause in your SPARQL query if that > > helps (e.g. "select * from <#ri> where { ?s ?p ?o }")--there's no > > default model set, which come to think of it, we should consider doing. > > > > > >> On a similar note, I was also interested in having an external Mulgara > >> store coupled to Fedora. If anyone has a walkthrough on how to set this > >> up, I'd love to read it. I have set the host param in the fedora.fcfg, > >> and have Mulgara's web UI happily running on /risearch. However, I > >> haven't been able to guess the process for creating the graph for Fedora > >> to use, mainly due to my inexperience with native mulgara, so rebuilding > >> fails, and Mulgara seems empty. > >> > > > > In datastore configuration for Mulgara in fedora.fcfg, set "remote" to > > "true", and set the "host" (and "port" if you're not using the default > > 1099) parameter to the host Mulgara is running on (e.g. "localhost"). > > You also need to ensure that the serverName parameter matches your > > remote instance of Mulgara (e.g. start mulgara with "-s fedora" or > > change serverName in fedora.fcfg to "server1", which is Mulgara's > > default). I think that's it ;) Let me know if that works for you. Then > > this should go up on the wiki. > > > > ------------------------------------------------------------------------- > > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > > Build the coolest Linux based applications with Moblin SDK & win great > > prizes > > Grand prize is a trip for two to an Open Source event anywhere in the world > > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > > _______________________________________________ > > Fedora-commons-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/fedora-commons-users > > > ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Fedora-commons-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/fedora-commons-users
