[Neo4j] Relationship indexing

Hi all, I'm working on a project with millions of nodes and relationships and I'm using Neo4j for it. I'm doing some tests and I'm surprised of how slow it gets when it comes to getting specific relationships from one node... How's it actually implemented? The node I want to get the

Re: [Neo4j] Relationship indexing

Persson: 2011/2/1 Pablo Pareja ppar...@era7.com Hi all, I'm working on a project with millions of nodes and relationships and I'm using Neo4j for it. I'm doing some tests and I'm surprised of how slow it gets when it comes to getting specific relationships from one node... How's

Re: [Neo4j] Relationship indexing

Persson matt...@neotechnology.comwrote: 2011/2/1 Pablo Pareja ppar...@era7.com Hi all, I'm working on a project with millions of nodes and relationships and I'm using Neo4j for it. I'm doing some tests and I'm surprised of how slow it gets when it comes to getting specific

Re: [Neo4j] Relationship indexing

the same relationshiptype and direction? Otherwise perhaps use node.getRelationships(type, direction) Perhaps you can also use a traverser for accessing the relationship? Cheers Michael Am 01.02.2011 um 12:37 schrieb Mattias Persson: 2011/2/1 Pablo Pareja ppar...@era7.com Hi

[Neo4j] Help with exception using BatchInserter

this exception was thrown I'd really appreciate any help, Cheers -- Pablo Pareja Tobes LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http://www.twitter.com/pablopareja http://www.ohnosequences.com ___ Neo4j mailing list User

Re: [Neo4j] Help with exception using BatchInserter

heap. All memory you use, memory mapping plus Java heap must fit in the available RAM. Cheers, Tobias On Thu, Feb 10, 2011 at 10:42 PM, Pablo Pareja ppar...@era7.com wrote: Hi all, I keep getting this exception and don't know what the reason could be: Unable to write record[244986398

[Neo4j] Does BatchInserter auto-commit before shutting down?

a really weird exception saying something about a index file that exists but cannot be accessed in the merge process ?!? I guess I'd be doing something wrong but cannot figure out what it is. Thanks in advance -- Pablo Pareja Tobes LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter

Re: [Neo4j] Does BatchInserter auto-commit before shutting down?

not have to shut down the batch inserter for this to happen, it is taken care of automatically. Cheers, Tobias On Mon, Feb 14, 2011 at 10:53 AM, Pablo Pareja ppar...@era7.com wrote: Hi, I was wondering whether once the memory-mapping configuration for BatchInserter is full

[Neo4j] Exception when calling to optimize() method

calling the optimize() method once per ~ 30.000 indexations, is it that too much/few ? are you supposed to call this method always between an indexation and a query on that index? Cheers, Pablo -- Pablo Pareja Tobes LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http

Re: [Neo4j] Does BatchInserter auto-commit before shutting down?

right? If you do that you'll have to call shutdown on that BatchInserterIndexProvider on conjunction with shutting down the BatchInserter. 2011/2/14 Pablo Pareja ppar...@era7.com Yeah, that's what I thought, I just wanted to confirm it. Thanks Pablo On Mon, Feb 14, 2011 at 4:57 PM

Re: [Neo4j] Help with exception using BatchInserter

Anders Nawroth and...@neotechnology.com Hi! 2011-02-15 13:19, Pablo Pareja: (Too many open files) This could be that you have old processes around that still keep lots of files open. Or that you simply have to few file handles available to begin with. Just google for Too many open

Re: [Neo4j] Exception when calling to optimize() method

relationships: optimize the index, then do all your queries on it. Merging of index files (which optimize() will do very heavily) happens automatically in the background anyway when you insert stuff. 2011/2/14 Pablo Pareja ppar...@era7.com I just got an exception when calling

Re: [Neo4j] Help with exception using BatchInserter

/listinfo/user -- Pablo Pareja Tobes LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http://www.twitter.com/pablopareja http://www.ohnosequences.com ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo

Re: [Neo4j] Help with exception using BatchInserter

...@neotechnology.com wrote: Hi guys, I don't have the history of this thread. What issues are you running into? David On Wed, Feb 16, 2011 at 2:37 AM, Pablo Pareja ppar...@era7.com wrote: Hi Mark, Thanks for your contribution. I'm using a m2.4xlarge EC2 AWS instance type (*68.4 GB

Re: [Neo4j] Help with exception using BatchInserter

-- Pablo Pareja Tobes LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http://www.twitter.com/pablopareja http://about.me/pablopareja http://www.ohnosequences.com ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman

Re: [Neo4j] Help with exception using BatchInserter

? Anyways I hope these two changes will make it and I won't run into more exceptions anymore. I'll let you all know how it goes once I finish this Batch Insertion step. Cheers, Pablo On Wed, Feb 16, 2011 at 10:05 AM, Pablo Pareja ppar...@era7.com wrote: Hi, I managed to change the ulimit in my

[Neo4j] Exception creating EmbeddedGraphDatabase from a Servlet

that this exception is related to server configuration stuff I don't know about. Any ideas? Thanks in advance, Cheers -- Pablo Pareja Tobes LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http://www.twitter.com/pablopareja http://about.me/pablopareja http://www.ohnosequences.com

Re: [Neo4j] Exception creating EmbeddedGraphDatabase from a Servlet

the right path for your database into your Jetty app? Jim ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Pablo Pareja Tobes LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http

[Neo4j] Indexing with BatchInserter (with new API) how to doubt

of indexing in the middle of the batch insertions? wouldn't that indexations be supposed to be done inside transaction blocks? As you can see I'm a bit confused with this, I'd really appreciate any clarification. Cheers, Pablo -- Pablo Pareja Tobes LinkedInhttp://www.linkedin.com

Re: [Neo4j] No index provider 'lucene' found with Tomcat/Trinidad

. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Pablo Pareja Tobes LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http://www.twitter.com/pablopareja http://about.me/pablopareja http://www.ohnosequences.com

Re: [Neo4j] Indexing with BatchInserter (with new API) how to doubt

Pablo Pareja ppar...@era7.com Hi all, I'm updating my code in order to user the new Indexing API but I have a doubt, when using the BatchInserter, (at least with the old one) you were supposed to use the classes LuceneIndexBatchInserter or LuceneFulltextIndexBatchInserter but, what

Re: [Neo4j] Exception creating EmbeddedGraphDatabase from a Servlet

, Pablo On Tue, Feb 22, 2011 at 7:40 PM, David Montag david.mon...@neotechnology.com wrote: Pablo, Did you resolve this, or is this still an issue for you? David On Mon, Feb 21, 2011 at 2:08 AM, Pablo Pareja ppar...@era7.com wrote: Hi Jim, I already did it, I'm using a constant

Re: [Neo4j] No index provider 'lucene' found with Tomcat/Trinidad

Hi Mattias, I'll try that tomorrow and I'll let you know, Pablo On Tue, Feb 22, 2011 at 9:00 PM, Mattias Persson matt...@neotechnology.comwrote: 2011/2/22 Pablo Pareja ppar...@era7.com Hi, I just moved my code to the new index API but I cannot deploy my server. I've already tried

[Neo4j] Help with IndexWriter ramBufferSize exception

to change that ramBufferSize' value, which by the way didn't specified at any point. Thanks in advance, Pablo -- Pablo Pareja Tobes LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http://www.twitter.com/pablopareja http://about.me/pablopareja http://www.ohnosequences.com

Re: [Neo4j] Help with IndexWriter ramBufferSize exception

the max amount to 2Gb as Lucene seem to suggest). Hopefully it can be addressed soon. 2011/2/24 Pablo Pareja ppar...@era7.com: Hi all, I just got this exception: ramBufferSize 3584.0 is too large; should be comfortably less than 2048 SEVERE

Re: [Neo4j] Help with IndexWriter ramBufferSize exception

with a 32G heap or just slightly lower. 2011/2/24 Pablo Pareja ppar...@era7.com: Hi Mattias, I guess that my only option would then be limiting the max amount to 2GB as you say, however this will make the insertion phase way longer than what I expected and counted on. Just to confirm, am I

[Neo4j] Batch Insertion, how to index relationships?

in terms of relationship retrieval time? Thanks in advance, Pablo -- Pablo Pareja Tobes LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http://www.twitter.com/pablopareja http://about.me/pablopareja http://www.ohnosequences.com

Re: [Neo4j] Beer and Talk

Hi! I really like the idea :) what about Granada, Spain? Pablo Pareja Tobes LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http://www.twitter.com/pablopareja http://about.me/pablopareja http://www.ohnosequences.com ___ Neo4j

[Neo4j] Neo4j's projects delicious Bookmarks

the projects list. should I do something else? Cheers, Pablo Pareja -- Pablo Pareja Tobes LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http://www.twitter.com/pablopareja http://about.me/pablopareja http://www.ohnosequences.com

Re: [Neo4j] Dynamic GEXF node attributes in neo4j database

though Java API how to get number of nodes and edges stored in the database? Or I have to traversal all graph? Thank you Matej Plch ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Pablo Pareja Tobes

Re: [Neo4j] Self-referencing relationships

rot...@windfish.net O=='=+ ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Pablo Pareja Tobes LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http://www.twitter.com/pablopareja

[Neo4j] Retrieving a node linked to the reference node takes forever

of what could be going on?? I really have no clue of what could I be doing wrong... In case it may be useful, the size of the DB at this point is around 46.000.000 nodes and 380.000.000 relationships (only a dozen or so coming/going to the reference node) Thanks in advance, Pablo -- Pablo

Re: [Neo4j] Retrieving a node linked to the reference node takes forever

[0xfae0,0xfb7ad920,0xfc2c) Hope this can help Pablo On Fri, May 6, 2011 at 2:28 PM, Pablo Pareja ppar...@era7.com wrote: Ok, I'm gonna run it again and get the stack trace as you say Pablo On Fri, May 6, 2011 at 1:15 PM, Tobias Ivarsson tobias.ivars

Re: [Neo4j] Retrieving a node linked to the reference node takes forever

on linux) or any process/system monitor? 2011/5/6 Pablo Pareja ppar...@era7.com There you go: Full thread dump Java HotSpot(TM) 64-Bit Server VM (19.0-b09 mixed mode): Low Memory Detector daemon prio=10 tid=0x7fa5ac0b7000 nid=0x526 runnable [0x

[Neo4j] Looping through all values of an index, is it possible?

, Pablo -- Pablo Pareja Tobes LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http://www.twitter.com/pablopareja http://about.me/pablopareja http://www.ohnosequences.com ___ Neo4j mailing list User@lists.neo4j.org https

Re: [Neo4j] Color suggestions for the Self-Relationship bike shed

@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Adriano Almeida Caelum | Ensino e Inovação www.caelum.com.br ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Pablo Pareja Tobes

[Neo4j] Fulltext indexing apparently not working when done in Batch insertion phase...

... Otherwise, is there any kind of known issue for this scenario (I mean, fulltext indexing with Batch insertion) ? I'd really appreciate any help with this. Cheers, Pablo Pareja -- Pablo Pareja Tobes LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http://www.twitter.com/pablopareja

Re: [Neo4j] Fulltext indexing apparently not working when done in Batch insertion phase...

get unexpected results for a fulltext index: 0 0 1 so it seems that it is actually an exact index what was created, even though I specified the string 'fulltext' ... Pablo On Thu, Jun 9, 2011 at 4:49 PM, Pablo Pareja ppar...@era7.com wrote: Hi all! Recently I noticed that some fulltext

Re: [Neo4j] Fulltext indexing apparently not working when done in Batch insertion phase...

17:04 schrieb Pablo Pareja ppar...@era7.com: Hi again, I just found out that I had the wrong name for querying the actors index, still when I change it for name like this: System.out.println(index.get(name, Keanu).size()); System.out.println(index.get(name, keanu).size

Re: [Neo4j] We now have an automatic discussion forum on the Nabble Mailing List Archive

list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Pablo Pareja Tobes LinkedInhttp://www.linkedin.com/in/pabloparejatobes

[Neo4j] Boston meet-up

Hi! I'll be in Boston from October 25th to October 29th, will any of you be in the area any of these days? Cheers, Pablo -- Pablo Pareja Tobes LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http://www.twitter.com/pablopareja http://about.me/pablopareja http

[Neo4j] WebAdmin visualization tool for large DB ?

to know which are the limits/constraints of the new WebAdmin tool ?* (in terms of number of rels/nodes in the neighborhood/ total DB)* Thanks, Pablo -- Pablo Pareja Tobes My site http://about.me/pablopareja LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http

[Neo4j] Size limits for REST Server?

functionality so that fetching methods for specific kind of nodes/rels/situations can be overwritten ? Cheers, Pablo -- Pablo Pareja Tobes My site http://about.me/pablopareja LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http://www.twitter.com/pablopareja Creator

Re: [Neo4j] Size limits for REST Server?

://lists.neo4j.org/mailman/listinfo/user -- Pablo Pareja Tobes My site http://about.me/pablopareja LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http://www.twitter.com/pablopareja Creator of Bio4j -- http://www.bio4j.com http://www.ohnosequences.com

Re: [Neo4j] Size limits for REST Server?

___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Pablo Pareja Tobes My site http://about.me/pablopareja LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http://www.twitter.com/pablopareja Creator of Bio4j -- http

Re: [Neo4j] Article: The Coming SQL Collapse

___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Pablo Pareja Tobes My site http://about.me/pablopareja LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http://www.twitter.com/pablopareja

Re: [Neo4j] WebAdmin visualization tool for large DB ?

with the implementation of web workers and all) I'd say. 2011/10/13 Pablo Pareja ppar...@era7.com Hi, I was looking for a way to visualize and interact with small subsets of large Neo4j databases, *(somehow* *navigating through the data in order to have a general idea of how things

Re: [Neo4j] WebAdmin visualization tool for large DB ?

relationships of a given type could be provided (e.g. a relationship line to a box labeled ...and 10,679 more From: user-boun...@lists.neo4j.org [user-boun...@lists.neo4j.org] On Behalf Of Pablo Pareja [ppar...@era7.com] Sent: Monday, October 17, 2011 6:44

Re: [Neo4j] WebAdmin visualization (are rels. labels configurable?)

Cool, I'll be waiting for it ;) Pablo On Tue, Oct 18, 2011 at 9:40 AM, Jacob Hansson jacob.hans...@neotechnology.com wrote: They can't currently, but it is actually the feature I'm currently working on, so it's coming :) On Mon, Oct 17, 2011 at 10:03 PM, Pablo Pareja ppar...@era7.com wrote

Re: [Neo4j] Visualizing all nodes + relationships on WebAdmin

/peterneubauer http://www.neo4j.org - Your high performance graph database. http://startupbootcamp.org/- Öresund - Innovation happens HERE. http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party. On Tue, Oct 18, 2011 at 2:51 PM, Pablo Pareja ppar...@era7.com wrote

Re: [Neo4j] Use Cases - Please tell your story

https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Pablo Pareja Tobes My site http://about.me/pablopareja LinkedInhttp://www.linkedin.com

Re: [Neo4j] Scalability Roadmap

release, I'd actually say that this is one of the most urgent points that should be covered right now... Cheers, Pablo Pareja On Fri, Nov 18, 2011 at 5:38 PM, serge s.fedoro...@gmail.com wrote: Are these following topics will be treated in future release (and when if you know) ? 1/ Supernode

[Neo4j] Neo4j upcoming features importance poll

this? Cheers, Pablo -- Pablo Pareja Tobes My site http://about.me/pablopareja LinkedInhttp://www.linkedin.com/in/pabloparejatobes Twitter http://www.twitter.com/pablopareja Creator of Bio4j -- http://www.bio4j.com http://www.ohnosequences.com

Re: [Neo4j] Neo4j upcoming features importance poll

for these and we mitigate missing voting on Github with this, linking back to github for discussion? On Nov 19, 2011 1:09 PM, Pablo Pareja ppar...@era7.com wrote: @Linan get_or_create feature added ;) @Mattias I mean being required to specify a node type at creation time, (as how things are right now

Re: [Neo4j] Neo4j upcoming features importance poll

risen in github. What do you think? Pablo On Sat, Nov 19, 2011 at 5:16 PM, Pablo Pareja ppar...@era7.com wrote: Yeah that'd be cool, if you give me the links I can put them as part of the options themselves (with bit.ly or something like that). Cheers, Pablo On Sat, Nov 19, 2011 at 1:30 PM

Re: [Neo4j] Neo4j upcoming features importance poll

their respective issues has been risen in github. What do you think? Pablo On Sat, Nov 19, 2011 at 5:16 PM, Pablo Pareja ppar...@era7.com wrote: Yeah that'd be cool, if you give me the links I can put them as part of the options themselves (with bit.ly or something like that). Cheers

Re: [Neo4j] Neo4j upcoming features importance poll

peter.neuba...@neotechnology.comwrote: I really like this. Is there any other transparent public method you poll, like a Google form that everyone can edit? On Nov 19, 2011 7:19 PM, Pablo Pareja ppar...@era7.com wrote: I just added a link for every possible upcoming feature and created

[Neo4j] Exporting Neo4j subgraphs to graphml/gexf....

of Neo4j core API, so that once you are situated in an specific node/relationship of the graph you could just export its neighborhood (specifying some parameters like depth) to one of these formats. Cheers, Pablo -- Pablo Pareja Tobes My site http://about.me/pablopareja LinkedInhttp

Re: [Neo4j] Neo4j upcoming features importance poll

finally found a use for Google Wave! :-P On 19 Nov 2011 13:09, Pablo Pareja ppar...@era7.com wrote: Yeah it'd be great having something more wiki-like that everyone could edit. I have no idea though about how could this be done Any ideas? Pablo On Sat, Nov 19, 2011 at 7:54 PM

Re: [Neo4j] WebAdmin visualization tool for large DB ?

to a box labeled ...and 10,679 more From: user-boun...@lists.neo4j.org [user-boun...@lists.neo4j.org] On Behalf Of Pablo Pareja [ppar...@era7.com] Sent: Monday, October 17, 2011 6:44 AM To: Neo4j user discussions Subject: Re: [Neo4j