Re: [Neo4j] OutOfMemory while populating large graph

2010-07-10 Thread Mattias Persson
Great, so maybe neo4j-index should be updated to depend on Lucene 2.9.3. 2010/7/9 Bill Janssen jans...@parc.com Note that a couple of memory issues are fixed in Lucene 2.9.3. Leaking when indexing big docs, and indolent reclamation of space from the FieldCache. Bill Arijit Mukherjee

[Neo4j] Neo4j Tuning for specific application

2010-07-10 Thread Amir Hossein Jadidinejad
Hi, I have a GraphDB with the following attributes: Number of nodes: 3.6M Number of relation types: 2 Total size of DB: 9GB lucene : 160MB neostore.nodestore.db : 31MB neostore.propertystore.db : 2GB neostore.propertystore.db.strings : 4GB neostore.relationshipstore.db : 1.5GB

Re: [Neo4j] Neo4j Tuning for specific application

2010-07-10 Thread Arjen van der Meijden
Hi Amir, I'm just starting with neo4j, but saw some issues with your code from a normal java-standpoint. Please note, some of them are just micro-optimizations that may not matter much. But a lot of them are in your critical path, so perhaps they're worth a look. On 10-7-2010 17:59 Amir

Re: [Neo4j] Neo4j Tuning for specific application

2010-07-10 Thread Mattias Persson
Are you using kernel/index version 1.0? Regarding the index lookups (each lookup in its own separate transaction): I think there's a bug in neo4j-index 1.0 which causes such a transaction (which contains a call to index.getNodes) to write stuff to and flush the logical log, which of course is

Re: [Neo4j] Neo4j with Amazon EC2 Setup

2010-07-10 Thread Paddy
hi, Thanks for the advice, Would it be better to use Amazon S3 or EBS storage to mount the neo4j database? thanks Paddy On Thu, Jul 8, 2010 at 6:24 AM, Dave butlerdi butle...@gmail.com wrote: We have just started putting the NK stuff together as they recently moved to V4 and it is quite a

Re: [Neo4j] Neo4j with Amazon EC2 Setup

2010-07-10 Thread Paddy
also can i load the configurations from the neo4j_config.props file if the GraphDatabaseService is injected by Spring? The Configuration Settings wiki outlines the setup as : MapString,String configuration = EmbeddedGraphDatabase.loadConfigurations( neo4j_config.props ); GraphDatabaseService