Re: [Neo] Neo transactions

hi Johan thank you for the reply - i think you're right :) (hope so) I'm currently using jetty as the web-server and these exceptions are all being thrown by jetty example (and sorry for the dump) com.sun.jersey.api.container.MappableContainerException: java.lang.Exception: Unable to return

Re: [Neo] Possible causes for: org.apache.lucene.index.MergePolicy$MergeException

2010/1/26 Symeon (Akis) Papadopoulos papa...@iti.gr: Mattias Persson wrote: Ah, do you make sure you call IndexHits#close() on your results from getNodes(), alternatively iterating over the whole result (in which case it's automatically closed)? Actually I'm calling the getSingleNode, thus I

Re: [Neo] Possible causes for: org.apache.lucene.index.MergePolicy$MergeException

See more information at http://components.neo4j.org/neo4j-index/apidocs/index.html Are you using the index component btw (artifactId: neo4j-index)? Yes. Is it possible that the problem is caused due to the fact that we perform several writes in both the graph and the index and we

Re: [Neo] Possible causes for: org.apache.lucene.index.MergePolicy$MergeException

2010/1/27 Symeon (Akis) Papadopoulos papa...@iti.gr: See more information at http://components.neo4j.org/neo4j-index/apidocs/index.html Are you using the index component btw (artifactId: neo4j-index)? Yes. Is it possible that the problem is caused due to the fact that we perform several

[Neo] highscalability.com talk about graphdb, including neo4j

With the success of Neo4j as a graph database in the NoSQL revolution, it's interesting to see another graph database, HyperGraphDB, in the mix. Full article : http://highscalability.com/blog/2010/1/26/product-hypergraphdb-a-graph-database.html -- Laurent ker2x Laborde Sysadmin DBA at

Re: [Neo] Cost limit option in Dijkstra Algorithm

Hi Peter Ideally I would like to stop traversal as soon as the max. cost limit is reached as we know there are no negative edges. That would probable be good performance-wise for huge graphs. Attached is a patch for my attempt at implementing the cost limit option. Its not thoroughly tested

Re: [Neo] highscalability.com talk about graphdb, including neo4j

Good find Laurent! All graph-related efforts are for popularizing this view on data. HypgraphDB is using BerkelyDB in the background. We actually had that backend in the early days of Neo4j as an option but it just wasn't up to our performance requirements in the end. Also, we had problems

[Neo] Neo4j RDF component download path missing?

Hi, I'm trying to use neo4j rdf component. I have downloaded the zipped archive from the download page http://neo4j.org/download/. included them in my class path. and every thing is working fine now i would like to work with rdf data but i'm unable to use the Rdf store and VerboseQuadStore as

[Neo] Neo4j Transaction Handling in Gremlin

Hi, In Gremlin [http://gremlin.tinkerpop.com], Neo4j transactions are handled automatically for every write to the graph. I'm now getting around to creating three new Neo4j Gremlin functions: 1. neo4j:start-tx() 2. neo4j:stop-tx(boolean) 3. neo4j:auto-tx(boolean) neo4j:stop-tx boolean argument

[Neo] Is neo-weaver component alive?

Is the neo-waver component under active development? There is no meaningful activity in the svn for a few months. Are there any plans regarding this component? Avishay ___ Neo mailing list User@lists.neo4j.org