[Neo] Neo4j Screencasts?

Hi all, I am thinking of doing some screen cast on different aspects of Neo4j. I am just wondering what you would like to see? Would be great to get a hint on what the community is struggling with and that we could highlight in different short scenarios. For instance, here are some initial

Re: [Neo] Neo4j Screencasts?

Anything more? I'd love to see a walkthrough on visualization (how do I make pretty pictures of my graphs). Eelco ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user

Re: [Neo4j] [Neo] Neo4j Screencasts?

Hi Peter, I think walk-through is a nice idea, i had a very tough time configuring neo with java since i never used one before, so something that goes into details with configuring maven,lucene and neo-kernal would be very helpful. P.s - i should mention that neo on jruby worked like charm

[Neo4j] Scalablity of disk storage and graph traversal

Hi 1)How does the storage of data on disk scale when we are using neo4j. Say we have a graph with V vertces and E edges. Will the storage on the disk be O(V+E) or even more than that. Is it linear to size of the graph O(V+E) or even more than that. 2)Suppose we implement a social network using

[Neo4j] [Neo]-

Hi all, as you probably noticed, I updated the Subject tag and other mentions of Neo on the list infrastructure to Neo4j. Just wanted to point it out in case you need to update your mail filter settings ... Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype

Re: [Neo4j] [Neo] Lookup property name

Niels, not sure what is happening there. Mattias or Johan, do you recognize that error? Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter

Re: [Neo4j] [Neo] Lookup property name

Sorry, just realized that this thread changed subject. Never mind! Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer

[Neo4j] Tuning Neo4j DB

Hi, I've created a large 5GB neo4j DB. It runs on a machine with 12GB of memory. Is it possible to tune DB in order to utilize memory as much as possible?-better performance Something like an In-Memory DB. Kind regards ___ Neo4j mailing list

Re: [Neo4j] Efficient way to sparsify a graph?

OK, seems to be running much faster now. The reason for such slow performance was mine, not Neo4j's. Before the input parameters to my function allowed the user to specify exactly how many Relationships should be removed. This meant in order to be fair I had to uniformly randomly generate ID's in

[Neo4j] Svamped - longer response times

Hi all, Mattias, Tobias, Anders and Johan are a bit svamped these days, so forgive us for taking more time to answer. OTOH, everyone is welcome to jump in, really! Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704

Re: [Neo4j] [Neo] How best to handle transactions

Hi! In some cases you could use annotations to hide transactions a bit: http://wiki.neo4j.org/content/Spring_And_Neo4j http://wiki.neo4j.org/content/IMDB_Transaction_handling General information on transactions is found here: http://wiki.neo4j.org/content/Transactions If you describe your use

Re: [Neo4j] [Neo] Newbie question

Thomas, if your dataset is that small, you could just start at any point, e.g. iterating over all cars, and looking at every car node if it is connected to the right nodes (only shown with the year node). I updated the GIST at http://gist.github.com/411699 to reflect this. This is a very crude

Re: [Neo4j] [Neo] Newbie question

How can I get all the 2000 - 2001, Silver, SAAB? This is a query based on multiple properties and I think there are three options for this: - Identify limited property and traverse on that, testing for the others in the traversal. I think this is what Peter was suggesting. So, for

Re: [Neo4j] Document/Graph based database

On Tue, May 25, 2010 at 11:51 AM, Laurent Laborde kerdez...@gmail.com wrote: i just found this post : http://airodig.com/2010/05/22/getting-oriented-with-orientdb/ I forgot the link to the OrientDB/OrientKV vendor website http://www.orientechnologies.com/ -- Laurent ker2x Laborde Sysadmin

Re: [Neo4j] [Neo] How best to handle transactions

The problem is that outside of the test it's strange to surface the Neo transactions outside of the persistence layer. This is not really a neo issue but since the difference is so large, I was wondering if there is a nice way to do this? I understand that we can't nest transactions. Perhaps

[Neo4j] Document/Graph based database

i just found this post : http://airodig.com/2010/05/22/getting-oriented-with-orientdb/ * Written in Java * 40k inserts/second on commodity hardware * Document/Graph Based DataBase * Supports Schema-less, schema-full, schema-mixed modes * Security Profiling for users/roles

Re: [Neo4j] [Neo] Newbie question

On Tue, May 25, 2010 at 6:00 AM, Peter Neubauer peter.neuba...@neotechnology.com wrote: Thomas, if your dataset is that small, you could just start at any point, e.g. iterating over all cars, and looking at every car node if it is connected to the right nodes (only shown with the year node).

[Neo4j] How to connect to REST Server

Hello, I'm testing Neo4J for 1 month and get more and more familiar with it. but i'm new to the Neo4J REST Server. I get the Server running but i want to use it with my software. Now I use the Embedded GraphDatabaseServer but i want to have a Database Connection with the Server. I know how to

Re: [Neo4j] [Neo] Neo4j Screencasts?

Nice! This would've been really useful when I was first getting to grips with what Neo4j was I think a Neo4j + Blueprints/Pipes/Gremlin would be cool too, for those people that are worried about getting locked in On Tue, May 25, 2010 at 2:18 PM, Peter Neubauer peter.neuba...@neotechnology.com

Re: [Neo4j] [Neo] Question regarding insertRelationship performance - memory issue?

Hi, Could you try to turn off logical log rotation or change the default target log size to see if that changes anything. You can do this by accessing the data source for the native store: GraphDatabaseService graphDb = new EmbeddedGraphDatabase( dbdir, ... ); TxModule txModule =

[Neo4j] Kernel 1.1-SNAPSHOT OSGI

Hey Neo Community - I recently moved to the 1.1-SNAPSHOT to test reads w/o Tx, but the kernel bundle doesn't seem export any packages. The index bundle seems to be fine still, but can't find the org.neo4j.graphdb package which should be exported from the kernel bundle. Poking around I can't

Re: [Neo4j] [Neo] Neo4j Screencasts?

Hi Eelco, I agree it would be nice to maybe even have a series based only on visualization tools. maybe you're familiar with this already, but in case you're not I would recommend checking out iGraph http://igraph.sourceforge.net/ http://igraph.sourceforge.net/it has bindings to Python, R, and C,

Re: [Neo4j] Kernel 1.1-SNAPSHOT OSGI

Hi David, Y'know I never even got around to switching to the 1.0 release, so I'm a little behind. But, after updating the source it does look like the kernel component has some bad bnd instructions. The parent pom assumes ${bundle.namespace} is the top-level package, and that

Re: [Neo4j] Kernel 1.1-SNAPSHOT OSGI

Andreas, will try this tomorrow and update the source, thanks for the pointer! Also, I will try reset your credentials :) Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn

Re: [Neo4j] [Neo] Neo4j Screencasts?

Thanks Alex, Eelco On Tue, May 25, 2010 at 11:06 AM, Alex Averbuch alex.averb...@gmail.com wrote: Hi Eelco, I agree it would be nice to maybe even have a series based only on visualization tools. maybe you're familiar with this already, but in case you're not I would recommend checking out

Re: [Neo4j] Scalablity of disk storage and graph traversal

Hi! sai kumar wrote: 1)How does the storage of data on disk scale when we are using neo4j. Say we have a graph with V vertces and E edges. Will the storage on the disk be O(V+E) or even more than that. Is it linear to size of the graph O(V+E) or even more than that. You'll find a hint here:

Re: [Neo4j] [Neo] Neo4j Screencasts?

Eelco, there is even a GraphViz component done by Tobias, https://svn.neo4j.org/laboratory/components/neo-graphviz/ . Right now it will output the whole graph, not selections AFAIK. Would that be of interest? Also, we have a GSoC project integrating Neo4j with www.gephi.org,

Re: [Neo4j] Kernel 1.1-SNAPSHOT OSGI

Thanks for the quick response Andreas. There are some packages defined below that do not exist, so it seemed to fail again. I changed to the following and it seems to work so far: Export-Package:

Re: [Neo4j] How to connect to REST Server

Hi Stefan! Stefan Berndt wrote: I'm testing Neo4J for 1 month and get more and more familiar with it. but i'm new to the Neo4J REST Server. I get the Server running but i want to use it with my software. Now I use the Embedded GraphDatabaseServer but i want to have a Database Connection with

Re: [Neo4j] Kernel 1.1-SNAPSHOT OSGI

That makes sense. I had forgotten that many (most, all?) of the impl classes in Neo are exposed rather than private. Good work straightening that out. -Andreas On May 25, 2010, at 4:32 PM, David Allen wrote: I actually had to remove the Private-Package directive (and the ! for

Re: [Neo4j] Kernel 1.1-SNAPSHOT OSGI

Guys, I can change that today - any objections from anyone? Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer